Monday, April 30, 2012

Green tea: A promising natural product in oral health

Archives of Oral Biology
Volume 57, Issue 5 , Pages 429-435, May 2012

Abstract 

Green tea is a leading beverage in the Far East for thousands of years; it is regarded for a long time as a health product. Green tea is important source of polyphenol antioxidants. Polyphenols including epigallocatechin 3 gallate (EGCG) constitute the most interesting components in green tea leaves. Green tea has the potential to protect against various malignant, cardiovascular and metabolic diseases. There is a growing body of evidence pointing a beneficial role of green tea and its polyphenols in oral health. Green tea protects against bacterial induced dental caries. Tea polyphenols possess antiviral properties, believed to help in protection from influenza virus. Additionally, green tea polyphenols can abolish halitosis through modification of odorant sulphur components. Oral cavity oxidative stress and inflammation, consequent to cigarette smoking and cigarettes’ deleterious compounds nicotine and acrolein, may be reduced in the presence of green tea polyphenols. Generally, green tea defends healthy cells from malignant transformation and locally has the ability to induce apoptosis in oral cancer cells. All together, there is an increasing interest in the health benefits of green tea in the field of oral health. Nonetheless, there is still a need for more clinical and biological studies to support guidelines for green tea intake as part of prevention and treatment of specific oral pathologies.

Saturday, April 28, 2012

Demandforce Acquired By Intuit

When we started Demandforce in 2003, our mission was to help small businesses thrive in an increasingly connected economy.  We knew that if we could empower small business owners with the kinds of tools that big corporations used for online marketing and communications, we could help them grow, compete and succeed in a complex and changing world. Today we serve more than 35,000 business users across 15 distinct industry segments.  Auto shops, salons, chiropractors, vets, optometrists, and dentists all use Demandforce to communicate with customers, build and leverage a great online reputation, and engage in network marketing—all with a level of automation and effectiveness our customers have come to trust.  To date, Demandforce has generated more that $1 Billion dollars in incremental revenue for our client base.  That’s $1 Billion used to hire staff, buy equipment, beautify offices, or drop to the bottom line.  We’re proud of this contribution to small business growth, and we feel we have an obligation to keep expanding so more businesses can experience the benefits of Demandforce. That’s why we are very proud to announce that today we have agreed to be acquired by the best name in small business software: Intuit, Inc.  This transaction will allow us to achieve our goal of reaching all small businesses while continuing to provide our customers with more innovation, more connection, and more success. Demandforce will continue to be run by the same management team that built the company, and we are committed to pursuing our mission, preserving our culture of innovation, and delivering overwhelming value to our customers each and every day. We thank the customers, partners and friends who have supported Demandforce along the way, and pledge to keep working tirelessly to grow small businesses for the benefit of all of us.  The future is bright, and we couldn’t be more excited to embark on the phase of our journey together.  Rick Berry President, Demandforce

Friday, April 27, 2012

Periodontal disease: a potential modifiable risk factor limiting conception

  Hum. Reprod. 27 (5): 1332-1342. doi: 10.1093/humrep/des034 First published online: February 22, 2012

Abstract

BACKGROUND Periodontal disease (PD) is a common chronic infectious and inflammatory disease of the gums and its supporting tissues, associated with several adverse health outcomes including significant obstetric consequences. PD is treatable with good oral hygiene and dental care, and consequently is a modifiable variable that may lead to improvements in adult health. To date, there are no published studies describing the influence of PD on a woman's time to conceive (TTC).
METHODS This study formed part of the Smile study, which was a multi-centre randomized controlled trial of treatment for PD in mid-pregnancy. PD was defined as the presence of pockets ≥4-mm deep at ≥12 probing sites in fully erupted teeth. At the time of recruitment, women were asked about their TTC and whether they had required fertility treatment.
RESULTS Of 3737 pregnant women recruited to the study, information was available from 3416 spontaneous conceptions, including 1014 cases with PD (29.7%). Planned pregnancies accounted for 1956 of the 3416 pregnancies available for study. For 146 women, the TTC was >12 months and PD was more prevalent in this group (34.9% versus 25.7%, P = 0.015). The mean TTC in women with PD was 7.1 months [confidence interval (CI): 5.7–8.6] compared with 5.0 months (CI: 4.4–5.5, P = 0.019) in those without PD. PD was present in 23.8% of Caucasian women and 41.4% of non-Caucasian women. Compared with Caucasian women without PD, non-Caucasian women with PD had an increased likelihood of TTC >12 months [13.9% versus 6.2%, odds ratio (OR): 2.88 (CI: 1.62–5.12), P < 0.001], but there was no difference for Caucasians with PD (8.6% versus 6.2%, OR: 1.15, CI: 0.74–1.79, P = 0.534). Other simultaneous predictors of TTC >1 year included age, BMI >25 and smoking.
CONCLUSIONS In the non-Caucasian population, PD was associated with an increased TTC, but whether this is related to PD, or some other factor also present within this population, should be further investigated.

Wednesday, April 25, 2012

Social Media For Your Dental Office?

Here is a great posting on the Dental Geek blog about social media myths in the dental office.
I agree with many of the points made in this commentary. Social media is adjunct marketing and takes time and effort. Is it worth the time and effort for your office? Only you can decide that.

Check out the
Social Media Myths In Dentistry

Five-Year Longitudinal Assessment of the Prognosis of Apical Microsurgery

I think this is a good study to reference for helping to determine whether to recommend an apicoectomy or extraction. MJ

Journal of Endodontics
Volume 38, Issue 5 , Pages 570-579, May 2012

Abstract 

Introduction

Apical surgery is an important treatment option for teeth with post-treatment apical periodontitis. Knowledge of the long-term prognosis is necessary when weighing apical surgery against alternative treatments. This study assessed the 5-year outcome of apical surgery and its predictors in a cohort for which the 1-year outcome was previously reported.

Methods

Apical microsurgery procedures were uniformly performed using SuperEBA (Staident International, Staines, UK) or mineral trioxide aggregate (MTA) (ProRoot MTA; Dentsply Tulsa Dental Specialties, Tulsa, OK) root-end fillings or alternatively Retroplast capping (Retroplast Trading, Rorvig, Denmark). Subjects examined at 1 year (n = 191) were invited for the 5-year clinical and radiographic examination. Based on blinded, independent assessment by 3 calibrated examiners, the dichotomous outcome (healed or nonhealed) was determined and associated with patient-, tooth-, and treatment-related variables using logistic regression.

Results

At the 5-year follow-up, 9 of 191 teeth were unavailable, 12 of 191 teeth were extracted, and 170 of 191 teeth were examined (87.6% recall rate). A total of 129 of 170 teeth were healed (75.9%) compared with 83.8% at 1 year, and 85.3% were asymptomatic. Two significant outcome predictors were identified: the mesial-distal bone level at ≤3 mm versus >3 mm from the cementoenamel junction (78.2% vs 52.9% healed, respectively; odds ratio = 5.10; confidence interval, 1.67-16.21; P < .02) and root-end fillings with ProRoot MTA versus SuperEBA (86.4% vs. 67.3% healed, respectively; odds ratio = 7.65; confidence interval, 2.60-25.27; P < .004).

Conclusions

This study suggested that the 5-year prognosis after apical microsurgery was 8% poorer than assessed at 1 year. It also suggested that the prognosis was significantly impacted by the interproximal bone levels at the treated tooth and by the type of root-end filling material used.

Tuesday, April 24, 2012

Dental plaque bacteria may trigger blood clots

Oral bacteria that escape into the bloodstream are able to cause blood clots and trigger life-threatening endocarditis.

Further research could lead to new drugs to tackle infective heart disease, say scientists presenting their work at the Society for General Microbiology’s Spring Conference in Dublin this week. Streptococcus gordonii is a normal inhabitant of the mouth and contributes to plaque that forms on the surface of teeth. If these bacteria enter into the blood stream through bleeding gums they can start to wreak havoc by masquerading as human proteins.
The research led by Howard Jenkinson, Professor of Oral Microbiology and Head of Research at the University of Bristol’s School of Oral and Dental Sciences, in collaboration with Dr Steve Kerrigan from the Royal College of Surgeons in Ireland (RCSI) has discovered that S. gordonii is able to produce a molecule on its surface that lets it mimic the human protein fibrinogen – a blood-clotting factor. This activates the platelets, causing them to clump inside blood vessels. These unwanted blood clots encase the bacteria, protecting them from the immune system and from antibiotics that might be used to treat infection. Platelet clumping can lead to growths on the heart valves (endocarditis), or inflammation of blood vessels that can block the blood supply to the heart or brain.
Dr Helen Petersen, who completed her PhD at Bristol in February 2011, presenting the work said that better understanding of the relationship between bacteria and platelets could ultimately lead to new treatments for infective endocarditis.
“In the development of infective endocarditis, a crucial step is the bacteria sticking to the heart valve and then activating platelets to form a clot. We are now looking at the mechanism behind this sequence of events in the hope that we can develop new drugs which are needed to prevent blood clots and also infective endocarditis,” she said.
Infective endocarditis is treated with surgery or by strong antibiotics – which is becoming more difficult with growing antibiotic resistance.
“About 30 per cent of people with infective endocarditis die and most will require surgery for replacement of the infected heart valve with a metal or animal valve,” said Dr Petersen.
“Our team has now identified the critical components of the S. gordonii molecule that mimics fibrinogen, so we are getting closer to being able to design new compounds to inhibit it. This would prevent the stimulation of unwanted blood clots,” said Dr Steve Kerrigan from the RCSI.
The team are also looking more widely at other dental plaque bacteria that may have similar effects to S. gordonii. “We are also trying to determine how widespread this phenomenon is by studying other bacteria related to S. gordonii. What our work clearly shows is how important it is to keep your mouth healthy through regular brushing and flossing, to keep these bacteria in check,” stressed Dr Petersen.

Monday, April 23, 2012

Effect of a third application of toothpastes (1450 and 5000 ppm F), including a 'massage' method on fluoride retention and pH drop in plaque.

Acta Odontol Scand. 2012 Feb 9. [Epub ahead of print]

Source

Department of Cariology, Institute of Odontology, Sahlgrenska Academy, University of Gothenburg , Gothenburg , Sweden.

Abstract

Abstract Objective. The aim was to investigate fluoride (F) retention in plaque, saliva and pH drop in plaque using high-F toothpaste (5000 ppm F) or standard toothpaste (1450 ppm F) twice a day or 3-times a day. A method using the toothpaste as a 'lotion' and massaging the buccal surfaces with the fingertip was also evaluated. Materials and methods. The investigation had a randomized, single-blinded, cross-over design and 16 subjects participated in six brushing regimes: (1) 5000 ppm F; twice a day, (2) 5000 ppm; 3-times/day, (3) 5000 ppm; twice a day, plus the 'massage' method once a day, (4) 1450 ppm F; twice a day, (5) 1450 ppm; 3-times/day and (6) 1450 ppm; twice a day, plus the 'massage' method once a day. The outcome measure was F retention in plaque, saliva and the plaque-pH change after a sucrose rinse. Results. The highest F concentration was found using high-F toothpaste (No 1-3) and differed significantly from those with 1450 ppm (No 4-6). Brushing with high-F toothpaste 3-times a day (No 2) resulted in a 3.6-times higher F saliva value compared with standard toothpaste twice a day (No 4) (p < 0.001). Increasing the frequency of application, from twice to 3-times a day, increased the F retention in plaque significantly when the two methods for application 3-times a day were pooled (p < 0.05). Brushing with 5000 and 1450 ppm toothpastes twice a day plus the 'massage' once a day resulted in the same F concentration in saliva and plaque as brushing 3-times a day with the same paste. Conclusion. A third application of toothpaste is increasing the F retention and toothpaste as a 'lotion' and massaging the buccal surfaces with the fingertip may be a simple and inexpensive way of delivering F a third time during the day.

Saturday, April 21, 2012

The role of unfinished root canal treatment in odontogenic maxillofacial infections requiring hospital care

DOI: 10.1007/s00784-012-0710-8

 Abstract


Objectives  

The aim of this study was to evaluate clinical and radiological findings and the role of periapical infection and antecedent dental treatment of infected focus teeth in odontogenic maxillofacial abscesses requiring hospital care.

Materials and methods  

In this retrospective cohort study, we evaluated medical records and panoramic radiographs during the hospital stay of patients (n = 60) admitted due to odontogenic maxillofacial infection originating from periapical periodontitis.

Results  

Twenty-three (38 %) patients had received endodontic treatment and ten (17 %) other acute dental treatment. Twenty-seven (45 %) had not visited the dentist in the near past. Median age of the patients was 45 (range 20–88) years and 60 % were males. Unfinished root canal treatment (RCT) was the major risk factor for hospitalisation in 16 (27 %) of the 60 cases (p = .0065). Completed RCT was the source only in 7 (12 %) of the 60 cases. Two of these RCTs were adequate and five inadequate.

Conclusions  

The initiation of inadequate or incomplete primary RCT of acute periapical periodontitis appears to open a risk window for locally invasive spread of infection with local abscess formation and systemic symptoms. Thereafter, the quality of the completed RCT appears to have minor impact. However, a considerable proportion of the patients had not received any dental treatment confirming the importance of good dental health. Thus, thorough canal debridement during the first session is essential for minimising the risk for spread of infection in addition to incision and drainage of the abscess. If this cannot be achieved, tooth extraction should be considered.

Clinical relevance  

Incomplete or inadequate canal debridement and drainage of the abscess may increase the risk for spread of endodontic infection.

Friday, April 20, 2012

Periodontal Disease Linked to Cardiovascular Disease


American Academy of Periodontology supports statement from American Heart Association; additional studies needed to determine causality

Chicago – April 18, 2012 – The American Academy of Periodontology (AAP) supports the American Heart Association’s (AHA) scientific statement “Periodontal Disease and Atherosclerotic Vascular Disease: Does the Evidence Support an Independent Association?” recently published in Circulation. The statement concludes that observational studies to date support an association between periodontal disease and cardiovascular disease, independent of shared risk factors. The AHA’s statement confirms the conclusions of the statements published by the AAP and The American Journal of Cardiology in 2009 and the U.S. Preventive Services Task Force in 2008.

While current research does not yet provide evidence of a causal relationship between the two diseases, scientists have identified biologic factors, such as chronic inflammation, that independently link periodontal disease to the development or progression of cardiovascular disease in some patients.

The lack of causal evidence should not diminish concern about the impact of periodontal status on cardiovascular health. According to Pamela McClain, DDS, president of the American Academy of Periodontology and a practicing periodontist in Aurora, Colorado, “Periodontal disease and cardiovascular disease are both complex, multi-factorial diseases that develop over time. It may be overly simplistic to expect a direct causal link. The relationship between the diseases is more likely to be mediated by numerous other factors, mechanisms, and circumstances that we have yet to uncover. However, as the AHA statement points out, the association is real and independent of shared risk factors.  Patients and healthcare providers should not ignore the increased risk of heart disease associated with gum disease just because we do not have all the answers yet.”

The AAP believes additional long-term interventional studies are needed to better understand the specific nature of the relationship between periodontal disease and cardiovascular disease. Patients’ periodontal status should also be added to future longitudinal studies of cardiovascular disease. The AAP hopes that the American Heart Association’s statement brings attention to the association between the two diseases and the need for additional research in this area.

Dr. McClain encourages physicians and dentists to communicate the association between cardiovascular disease and periodontal disease to patients. “It is not as simple as telling a patient that brushing and flossing will ward off a heart attack,” says Dr. McClain. “Patients should be aware that by maintaining periodontal health, they are helping to reduce harmful inflammation in the body, which has been shown to reduce the risk of cardiovascular disease.”

Patients should expect to receive a comprehensive periodontal evaluation from their dental professional at least once a year, adds Dr. McClain. This includes a detailed examination of the teeth and gums, and an assessment of risk factors such as smoking, age, and overall health status. In addition, patients diagnosed with periodontal disease should be sure to inform their general health care provider and/or cardiologist to encourage better integration of their care.

“There is no compelling evidence to support that treating periodontal disease will reduce cardiovascular disease at this time,” says Dr. McClain, “but we do know that periodontal care will improve your oral health status, reduce systemic inflammation, and might be good for your heart as well.”

For more information about periodontal disease, visit perio.org.

About the AAP
The American Academy of Periodontology (AAP) is the professional organization for periodontists - specialists in the prevention, diagnosis, and treatment of diseases affecting the gums and supporting structures of the teeth, and in the placement of dental implants. Periodontists are also dentistry’s experts in the treatment of oral inflammation. They receive three additional years of specialized training following dental school, and periodontics is one of the nine dental specialties recognized by the American Dental Association. The AAP has 8,400 members worldwide.

Wednesday, April 18, 2012

Take Five with Marty Episode 3- Oral Cancer Awareness Month Part 2



In the latest episode of Take Five with Marty, Dr. Jablow discusses the use of custom made mouth-guards in contact sports, and meets with oral cancer survivor, Eva Grayzel for part two of their oral cancer awareness interview. Eva Grayzel offers an inspirational story, and stresses the importance of regular oral cancer screenings. For more episodes of Take Five with Marty, visit http://www.takefivewithmarty.com/.

Tuesday, April 17, 2012

Eco-Dentistry Association To Host 2012 Earth Day Tweetchat : “Ask a Green Dentist”

The EDA will host its first ever Earth Day Twitter Chat on what it takes to be a thriving, eco-friendly dental practice

Berkeley, CA (April 16, 2012) This Earth Day, the Eco-Dentistry Association will host its first tweetchat for dental industry professionals and consumers worldwide to discuss the essentials of a high-tech, wellness based, and successful green dental practice. The tweetchat will provide an opportunity for the EDA’s GreenDOC™ Certified offices to share advice and expertise related to creating and operating eco-friendly dental offices. Everyone interested in the green transformation of dentistry is invited to participate in the discussion, which will take place on Friday, April 20, 2012 from 10-11:00 AM PST and which will use the hashtag “#ecodentistry” to facilitate the conversation.
The tweetchat will be moderated by the EDA team and hosted by the EDA’s GreenDOC™ Certified offices; the GreenDOC™ program allows practices to earn points for the green initiatives they have implemented in the areas listed below, and based upon the number of points garnered, awards either Gold, Silver or Bronze certification:
Sustainable Location Waste Reduction Pollution Prevention
Energy Conservation Water Conservation Patient Care, Workplace Policies
& Community Contribution Leadership Innovation

In preparation for Earth Day on April 22, the #ecodentistry tweetchat will provide a high-tech platform for industry leaders in green dentistry to share the “nuts and bolts” of green dentistry practices and to help everyone better understand what constitutes a green dental office and its benefits to patients, practitioners and the planet. Dental professionals interested in going green can ask GreenDOCs about everything from energy-saving LED operatory lights to paint containing none of the toxic Volatile Organic Compounds. Consumers may be interested to learn about the low radiation benefits of digital imaging as well as high-tech oral cancer screening modalities, of special focus in April, which is Oral Cancer Awareness month.

“Every industry is examining the ways it can lighten its environmental footprint and the dental offices leading this virtual conversation are on the cutting edge of dentistry’s efforts – pun intended”, said Ina Pockrass, co-founder of the EDA. “This tweetchat will provide a unique opportunity for leaders of the green dentistry movement to share their expertise in real time.”

The #ecodentistry tweetchat is the first in a series of twitter conversations moderated by the EDA focusing on the “how-to” and “why” of choosing eco-friendly dentistry. The EDA’s membership base of nearly 700, which spans forty-five U.S. states and thirteen countries world-wide, have pledged to re-think the way they practice dentistry while making outstanding patient and planetary care a top priority. Stakeholders throughout dentistry are members of the EDA, from dental students, to manufacturers and suppliers, to well-established practitioners, brought together by a shared commitment to stimulate rapid adoption of high-tech, Earth-friendly methods in dentistry.


About the EDA
The EDA offers dental professionals’ practical tips on incorporating eco-friendly dental methods and practices, and offers the public access to dental professionals that share their values of wellness and environmental stewardship. The organization was co-founded by Dr. Fred Pockrass, a dentist, and his entrepreneur wife, Ina Pockrass, who together created the model for eco-friendly dentistry, and operate their own award-winning dental practice in Berkeley, California, the first in the country to be certified as a green business. They formed the organization to stimulate a movement in the dental industry to employ environmentally-sound practices, like reducing waste and pollution, saving energy, water and money, incorporating wellness-based methods and the best technological advances in dentistry. More information can be found at www.ecodentistry.org
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Monday, April 16, 2012

"10 Tips for Teaching Kids to Care for their Teeth"

Proper dental hygiene is such an important part in maintaining healthy teeth and gums for a lifetime, and learning these good habits early on is crucial. When kids make brushing and flossing part of their daily routine it will become second nature by the time they reach adulthood. On the other hand, people who don’t learn proper dental care as children have a difficult time correcting bad habits later on. Since this is not something that comes naturally it needs to be taught, and some children aren’t going to be willing pupils. Here are 10 tips for teaching reluctant kids to care for their teeth.
Read the 10 tips on NannyPro.com

http://www.nannypro.com/blog/10-tips-for-teaching-kids-to-care-for-their-teeth/

Saturday, April 14, 2012

3M ESPE Adds Dental Products Review Feature to Website

Customers invited to share feedback and experiences with new dental products review capabilities

ST. PAUL, Minn. – (April 5, 2012) – 3M ESPE announces a new ratings and reviews feature on its website, allowing customers to share their opinions and recommendations of 3M ESPE products through dental products reviews. With such popular dental products as FiltekTM dental restoratives, ScotchbondTM dental adhesives, RelyXTM dental cements, MDI Mini Dental Implants, and ClinproTM preventive products, 3M ESPE hopes the new dental products review feature will help its website visitors efficiently evaluate their options and purchase with confidence.
“Data shows that online shoppers are increasingly relying on product ratings and reviews to help them make decisions,” said Keith Haig, director of marketing for 3M ESPE. “This new dental products review feature goes hand-in-hand with our recent redesign of the 3M ESPE website. Everything is aimed at giving visitors a cleaner, simpler, more engaging experience on the site, and helping them find the dental products review they need.”
Visitors to the 3M ESPE website will now find a “Reviews” tab on each dental product page, where they can view other users’ comments and add their own. To add a dental products review for a 3M ESPE product, reviewers are asked to rate each product on a scale of one to five stars and to state whether or not they would recommend the product. An additional feature of the 3M ESPE dental products review lets users leave additional comments to explain their experiences with products. The online form also gives users an option to include related products in their dental products review, as well as a space to confidentially submit additional feedback to 3M ESPE customer service.
To help prompt customers to use the new dental products review feature, 3M ESPE has created a web button that will be featured on email campaigns, e-newsletters, and other online outlets.
“We encourage all customers to use this dental products review feature,” said Haig. “Candid feedback has always been of the utmost importance to us at 3M ESPE, and this new ratings and reviews tool gives our customers the easiest way yet to let us, and others, know what they think.”
To start adding your ratings and reviews, visit http://www.3mespe.com/review.

Friday, April 13, 2012

Maternal breastfeeding, parafunctional oral habits and malocclusion in adolescents: A multivariate analysis

International Journal of Pediatric Otorhinolaryngology
Volume 76, Issue 4 , Pages 500-506, April 2012

Abstract 

Objective

Malocclusion may result in esthetic impairment and functional disorders such as bad chewing, speech and swallowing, with a negative impact on quality of life. There is uncertainty regarding the effects of breastfeeding on dentofacial malocclusions. The purpose of the study was to evaluate the relationship between maternal breastfeeding and dental malocclusions and facial characteristics in adolescents with permanent dentition.

Methods

Probabilistic sampling of 2060 12- to 15-year-old students in a cross-sectional study was used. Malocclusion, as defined by Angle, and facial characteristics were the dependent variables. The duration of breastfeeding was the main independent variable. Other covariates were tested as effect modifiers or confounders. The associations were estimated using the odds ratio (OR) in multinomial logistic regression analysis (α=5%).

Results

There was an association between a short duration of breastfeeding (less than 6 months) and Angle class II (OR=3.14; 95% CI: 1.28–7.66) and class III (OR=2.78; 95% CI: 1.21–6.36) malocclusion only in students with a prolonged history of bruxism. A higher occurrence of severe convex profile (OR=3.4; 95% CI: 0.63–18.26) and a lower occurrence of cancave profile (OR=0.43; 95% CI: 0.21–0.88) were also observed only among adolescents who had been breastfed for a short period and exposed to a long periods of mouth breathing.

Conclusions

These findings support the hypothesis that breastfeeding alone seems not to be directly associated with malocclusions, but it may have a synergetic effect with parafunctional oral habits on the development of occlusofacial problems. It is recommended that deleterious oral habits be avoided, especially by children who were breast-fed for less than 6 months.

Thursday, April 12, 2012

In vitro comparison of mechanical properties and degree of cure of bulk fill composites

DOI: 10.1007/s00784-012-0702-8

Abstract


Objectives  

The aim of our study was to measure and compare degree of conversion (DC) as well as micro- (indentation modulus, E; Vickers hardness, HV) and macromechanical properties (flexural strength, σ; flexural modulus, E flexural) of two recently launched bulk fill resin-based composites (RBCs): Surefil® SDR™ flow (SF) and Venus® bulk fill (VB).

Materials and methods  

DC (n = 6) was investigated by Fourier transform infrared spectroscopy (FTIR) in clinical relevant filling depths (0.1, 2, and 4 mm; 6 mm bulk, 6 mm incremental) and irradiation times (10, 20, 40 s). Micro- (n = 6) and macromechanical (n  = 20) properties were measured by an automatic microhardness indenter and a three-point bending test device after storing the specimens in distilled water for 24 h at 37°C. Furthermore, on the 6-mm bulk samples, the depth of cure was determined. A field emission scanning electron microscope was used to assess filler size. Results were evaluated using one-way analysis of variance, Tukey’s honest significance test post hoc test, a multivariate analysis (α = 0.05) and an independent t test. Weibull analysis was used to assess σ.

Results  

VB showed, in all depth, significant higher DC (VB, 62.4–67.4 %; SF, 57.1–61.9 %), but significant lower macro- (VB, E flexural = 3.6 GPa; σ = 122.7 MPa; SF, E flexural = 5.0 GPa; σ = 131.8 MPa) and micromechanical properties (VB, E = 7.3–8.8 GPa, HV = 40.7–46.5 N/mm²; SF, E = 10.6–12.2 GPa, HV = 55.1–61.1 N/mm²). Both RBCs showed high reliability (VB, m = 21.6; SF, m = 26.7) and a depth of cure of at least 6 mm at all polymerization times. The factor “RBC” showed the strongest influence on the measured properties (η 2 = 0.35–0.80) followed by “measuring depth” (η 2 = 0.10–0.46) and “polymerization time” (η 2 = 0.03–0.12).

Conclusions  

Significant differences between both RBCs were found for DC, E, σ, and E flexural at all irradiation times and measuring depths.

Clinical relevance  

Curing the RBCs in 4-mm bulks for 20 s can be recommended.

Wednesday, April 11, 2012

Dropbox ups storage space to 16 GB

I am a big fan of the free Dropbox service.  When you install it on your computers it creates a folder called “Dropbox”.  When you save files to that folder they are automatically synched to “the cloud” so that they are available anywhere.  You can access your files through the Dropbox web site, or via the Dropbox app on your smartphone, or via any other computer that you install Dropbox on.  It’s also really great for collaboration: you can easily share folders and files with friends and colleagues.  They can work on those files on their own computer and their changes will automatically synch across to yours.

Dropbox gives you extra free space when you invite friends to signup.  Even better, you can now get free space up to 16GB!  So, if you’re interested, please use my link below to signup.
Dropbox Link

Thanks and I hope you get as much use of Dropbox as I do.

Tuesday, April 10, 2012

DUX Dental Launches Reversible Bronze/Charcoal Lead-Free Dental X-Ray Apron

Designed to enhance any dental office, this elegant apron is the cure for the common dental x-ray apron.

OXNARD, CALIF. – April 4, 2012– DUX Dental is offering an alternative to the common dental x-ray apron with the launch of a reversible bronze/charcoal lead-free apron. This elegant bronze/charcoal apron will add a sophisticated look to any dental operatory. Dental offices invest substantial time and money to modernize and beautify their office, and now there is an x-ray apron that complements those efforts. The bronze and charcoal colors will hide the wear of the apron which is commonly seen with lighter blues, pinks and grays. As the apron is also reversible, you can change the look at any time to suit your needs. For the ultimate in comfort, the apron features lead-free alloy sheeting that provides protection equivalent to a traditional style lead apron, yet weighs 3½ pounds less and is 100% recyclable with no toxic metals.

The bronze/charcoal aprons are available in adult sizes with a thyroid collar (item # 31369) and as a panoramic poncho (item # 31370).  Child sizes are available upon request. These reversible bronze/charcoal lead-free aprons will be available for order with major dental dealers starting May 1, 2012. Please place your orders now with your preferred dental dealer to ensure quick delivery. 

Keep up to date with the latest information about the bronze/charcoal aprons and other DUX Dental products by Liking Us on Facebook at https://www.facebook.com/duxdental


Monday, April 09, 2012

Dental Photonics Launches New Alta™ MKS Product

 
Walpole, MA., [April 3, 2012] – Dental Photonics, Inc., an international research and development company for advanced light-based medical and dental technologies, today announced that it unveiled its new Alta™ Modular Laser System at the Academy of Laser Dentistry Meeting in Scottsdale, AZ on March 29, 2012.
Commenting on the achievement, Dental Photonics Chief Executive Officer Alexander Vybornov said, “We are very pleased with strong initial results of the product launch. Our booth saw a record attendance –- over a third of dentists and hygienists participating in the show -- enabling us to take initial customer orders and generate a robust sales pipeline into the second quarter of 2012.”
Based on years of research and development, the Alta™ MLS allows for the integration of targeted dental lasers for a wide range of treatment modalities under an umbrella of one compact modular device. Unlike single-purpose conventional dental lasers, Alta™ MLS has paved the way to exchangeable application modules that tackle everyday clinical challenges and provide breakthrough solutions for large unmet medical needs.

The Alta™ MLS initial Alta-ST™ application module reinvents soft tissue surgery and allows for never before seen control and ease-of-use. Based on a unique Thermo-Optically Powered (TOP™) Surgery technology, Alta-ST™ permits even laser novices to provide superior dental treatments for their patients right from day one. Dental Photonics received FDA clearance for TOP Surgery™ in February of 2012 and is the first and only company allowed to market the technology for soft tissue dental applications.

Alta-ST™ will be followed by application modules in the fields of periodontal, hard tissue and aesthetic treatments, all with radically new targeted approaches to resolving large unmet clinical challenges.
For more information, please visit the Alta™ MLS website at www.altamls.com.

Saturday, April 07, 2012

DentalEZ® Group Creates Free iPhone® Application



Malvern, PA (March 27, 2012) – DentalEZ® Group, a supplier of innovative products and services for dental health professionals worldwide, recently created a new company application available to all iPhone® and iPad® users. 

The new DentalEZ Group Sales Tools application is intended for all dental professionals who are interested in obtaining more information about DentalEZ products and services.  The application provides easy access to informational material, including product literature, images, and catalog pages for DentalEZ products and brands, including StarDental®, DentalEZ, CustomAir®, RAMVAC®,  and NevinLabs.  Users of the new application will also be able to share the information with others by conveniently emailing PDFs of the available product literature and images.

In addition, videos featuring product demonstrations and professional interviews are included in the app, as well as an event calendar that showcases all upcoming DentalEZ engagements. 

The new DentalEZ Group Sales Tools application is free of charge, and is available to all iPhone and iPad users by visiting the App Store.  Interested users can go to the App Store on their iPhone or iPad, search “DentalEZ,” and the DentalEZ Group Sales Tools application will appear.  The application can then be installed by clicking the “install app” button. 

The DentalEZ Group Sales Tools application will be periodically updated with additional content as it becomes available, and DentalEZ will soon release an Android version of the application. 

For additional information on all DentalEZ offerings, please call 866-DTE-INFO or visit www.DentalEZ.com.   


About DentalEZ® Group

DentalEZ® Group is committed to advancing the practice of dentistry through innovative products and services.  Encompassing six distinct product brands — StarDental®, DentalEZ®, CustomAir®, RAMVAC®, NevinLabs, and Columbia Dentoform® — DentalEZ® Group manufactures everything in the operatory, from handpieces to chairs to vacuum systems to dental simulation models, creating a complete line of products to elevate the health, comfort, and efficiency of the dental operatory.  For more information, please visit www.dentalez.com.


Friday, April 06, 2012

Dosimetry of a cone-beam computed tomography machine compared with a digital x-ray machine in orthodontic imaging

Always use the lowest dosage possible to achieve the necessary imaging. MJ

American Journal of Orthodontics & Dentofacial Orthopedics
Volume 141, Issue 4 , Pages 436-443, April 2012

Introduction

Cone-beam computed tomography (CBCT) has become a routine imaging modality for many orthodontic clinics. However, questions remain about the amount of radiation patients are exposed to during the scans. This study determined the amounts of radiation potentially absorbed by a patient during orthodontic imaging with a CBCT machine with various scan settings compared with a conventional 2-dimensional digital x-ray machine.

Methods

The radiation exposures delivered by a next generation i-CAT CBCT machine (Imaging Sciences International, Hatfield, Pa) at various scan settings and orthopantomograph OP100/OC100 digital x-ray machine (Instrumentarium Dental, Tuusula, Finland) during panoramic and cephalometric radiography were recorded using thermoluminescent dosimeters placed inside a head and neck phantom. The manufacturer-recommended settings for an average adult male were used for both types of machines. Effective doses were calculated using the tissue-weighting factors recommended by the 2007 International Commission on Radiological Protection.

Results

The effective doses at various voxel sizes and field of view settings ranged from 64.7 to 69.2 μSv for standard resolution CBCT scans (scan time 8.9 s) and 127.3 to 131.3 μSv for high resolution full field of view scans (scan time 17.8 s), and measured 134.2 μSv for a high-resolution landscape scan with a voxel size as would be used for SureSmile (OraMetrix, Richardson, Tex) therapy (scan time 26.9 s). The effective doses for digital panoramic and lateral cephalometric radiographs measured 21.5 and 4.5 μSv, respectively.

Conclusions

CBCT, although providing additional diagnostic and therapeutic benefits, also exposes patients to higher levels of radiation than conventional digital radiography.

Thursday, April 05, 2012

Philips Zoom Bleaching Simulation App


For those of you who are into high tech fun opportunities, Philips has an new app. It allows you or your patient to use a smiling photo of themselves to view a simulation of their smile after Zoom whitening. The app works with an iPhone, iPad and iPod Touch and we will have an Android version very soon.

You can download the app from this site:

Take your picture and see the results. You or your patient can share the simulation on a Facebook and Twitter account, and go to www.zoomwhitening.com to find their closest dental professional.

Wednesday, April 04, 2012

"Mommy, what's cancer?"

April is Oral Cancer Awareness Month. Cancer does not just effect the patient it effects the entire family. Here is a book form oral cancer survivor Eva Grayzel. 

Mr. C Plays Hide & Seek
Thirteen years ago, I was that mom being asked that question by my children ages 5 and 7, after my late-stage cancer diagnosis.  The answer has to be thoughtful and appropriate denpending on the child's age and situation.  
My children were deeply affected by watching me struggle with the severe effects of my treatment. I founded the Talk4Hope book series to help children understand a cancer diagnosis and acquire skills for coping and communicating.
 
Fret no longer about how to answer that loaded question.  "Mr. C Plays Hide & Seek," helps children understand the life of cancer from the perspective of the 'charming and personable' Mr. C himself.
 
Would you like to sneak a peek?  Since April is oral cancer awareness month, my personal campaign, I want to gift my readers with a downloadable version.  This gift expires on April 30th. 
 
Mr. C Plays Hide & Seek by Eva Grayzel 
 
(To view the PDF as you would a book, choose a 2-page view option in Adobe Acrobat Reader.  The page 1 illustration of needle should be on the RIGHT)
 
It is currently listed for national distribution by Atlas books. By June 1st, it will be sold on Amazon, Barnes & Noble, and all other major booksellers for under five dollars, an affordable price to help as many children as possible.
 
Share this newsletter to help get this book into the hands (computers, iPads) of children who need it.  
 
I hope this message offers you a dose of inspiration to launch you into spring!
 
Eva
 
P.S.  Help more children by forwarding this information to friends who work in hospitals, cancer centers, pharmaceuticals, healthcare companies,  libraries, schools, foundations..

Tuesday, April 03, 2012

DISCUS DENTAL, LLC (A PHILIPS COMPANY) DIVESTS LASER, ZEN, AND INSIGHT PRODUCTS TO ZILA, INC.



April 3, 2012

We are pleased to announce that Zila, Inc. has acquired the Laser, Zen, and Insight product portfolios from Discus Dental, LLC (A Philips Company). This includes: NVTM, SLPTM, and SL3TM lasers, ZenTM cordless prophy and Insight® ultrasonic inserts. The addition of these products strengthen and support Zila's proprietary Soft Tissue Management® production portfolio, which includes Rotadent® professional rotary toothbrushes, ViziLite® Plus oral lesion identification & marking system, ATRIDOX® locally applied antibiotic and Pro-Select Platinum® piezo ultrasonic scaler.

Philips Oral Healthcare will continue to support dental professionals through its category leading whitening and oral hygiene line-up including Zoom®, DayWhite®, NiteWhite® and BriteSmile® tooth whitening solutions, Sonicare® power toothbrushes, Fluoridex® fluoride toothpaste, PerioRx® chlorhexidine rinse, Relief® ACP gel and BreathRx®.

In the following weeks Zila and Discus Dental will work together to transition all Laser, Zen, and Insight operations into Zila's manufacturing and distribution facilities in Batesville, Arkansas.

Be assured that both companies are committed to make this transition as seamless as possible. Questions and answers are provided below. If there is a question we have not addressed, please feel free to contact either company using the contact information provided below.

Sincerely,


Frank McGillin
General Manager, Discus Dental, LLC
Vice President, Philips Consumer Lifestyle
David R. Speights
CEO, Zila, Inc.

Contact Information:

Philips Oral Healthcare:
(310) 845-8600
Zila, Inc:
(800) 228-5595



ANSWERS to commonly asked questions

  • What products are being sold to Zila?
    • Zila has acquired the Discus Dental Laser, Zen, and Insight portfolio. This includes: NVTM, SLPTM, and SL3TM lasers, ZenTM cordless prophy and Insight® ultrasonic inserts.

  • When will this transition begin and how long is it expected to last?
    • During April, responsibility for the sale and distribution of these products will transition from Discus Dental to Zila. In the near-term, all sales and customer service functions will remain with Discus Dental. On or before April 16th, you wil be able to begin purchasing all of these products exclusively from Zila.

  • When I need to place my next order, how will I know which company to contact?
    • New orders can be placed the same way they are today, through the Discus Dental Call Center. On or before April 16th, any calls coming into Discus Dental for Lasers, Zen or Insight will be taken by a Discus Dental representative for a price quote and shipping. All of the orders will be forwarded to Zila Customer Care for invoicing. After April 16th, you will be able to dial Zila Customer Care directly at 1-800-228-5595, option #2 to place orders for the above mentioned products.

  • Will the current Discus Dental part numbers (SKU's) remain the same or will they be changed to a Zila numbering system? If a change will be made, how will I be notified?
    • Zila intends to maintain the current part numbers for the foreseeable future.

  • What affect will this change have on the timing of delivery of products that I have currently on order with Discus Dental? What about those ordered in the near future?
    • Orders taken after the divestment that were placed with Discus Dental before April 16th, will be shipped from Discus Dental.
    • New orders placed with Zila on or about April 16th, will ship from the Zila distribution center in Batesville, Arkansas.

  • If I have a warranty issue or return already in progress, how will this be handled? For issues and returns on products that I had previously purchased from Discus Dental, which company should I contact?
    • Zila will honor all product warranties and returns for products sold prior to the transfer of the Laser, Zen & Insight business from Discus Dental.
    • Zila Customer Care can be reached at 1-800-228-5595, press option #2.

  • Will Discus Dental's return and warranty terms and conditions be honored by Zila or will the products that I previously purchased from Discus Dental be transferred to the terms and conditions of Zila policies? What are the terms and conditions of Zila's warranty and return policies?
    • Zila will honor the warranties of all products sold by Discus Dental (A Philips Company).

  • Will the price of any of the Laser, Zen or Insight products change in the near future?
    • Zila will continue selling all products at the same prices subject to Zila's customary price review from time-to-time.

  • Will any Laser, Zen or Insight products be discontinued or changed? If so, how much notice will be given before a product change or discontinuation takes place?
    • Most, if not all, of the products will continue to be available. At this point, Zila does not have any plans to discontinue any of the products being acquired from Discus Dental (A Philips Company).
    • Zila is committed to maintaining continuity of product quality and will be utilizing the same materials, quality standards, manufacturing practices, suppliers and even the same equipment, to produce these fine products.

  • Will I need to set up a new account with Zila or will my Discus Dental account be transferred?
    • Yes, you will need to set up a new account if you do not currently have an account with Zila.
    • Your Zila sales representative will assist you with account set-up, which is a quick and simple procedure.

April is Oral Cancer Awareness Month

April is oral cancer awareness month and this episode of Take Five With Marty addresses this disease.

Monday, April 02, 2012

Anticaries effect of dentifrices with calcium citrate and sodium trimetaphosphate

Journal of Applied Oral Science 

J. Appl. Oral Sci. vol.20 no.1 Bauru Jan./Feb. 2012



ABSTRACT
Because of the growing concerns regarding fluoride ingestion by young children and dental fluorosis, it is necessary to develop new dentifrices.
OBJECTIVE: The aim of this study was to evaluate the effect of dentifrices with calcium citrate (Cacit) and sodium trimetaphosphate (TMP) on enamel demineralization.
MATERIAL AND METHODS: Enamel blocks (n=70), previously selected through surface hardness analysis, were submitted to daily treatment with dentifrices diluted in artificial saliva and to a pH-cycling model. The fluoride concentration in dentifrices was 0, 250, 450, 550, 1,000 and 1,100 µg F/g. CrestTM was used as a positive control (1,100 mg F/g). Cacit (0.25%) and TMP (0.25%) were added to dentifrices with 450 and 1,000 µg F/g. Surface hardness was measured again and integrated loss of subsurface hardness and fluoride concentration in enamel were calculated. Parametric and correlation tests were used to determine difference (p<0.05) and dose-response relationship between treatments.
RESULTS: The addition of Cacit and TMP did not provide a higher fluoride concentration in enamel, however it reduced (p<0.05) mineral loss when compared to other dentifrices; the dentifrice with Cacit and TMP and a low fluoride concentration presented similar results when compared to a dentifrice with 1,100 mg F/g (p>0.05).
CONCLUSIONS: Dentifrices with 450 and 1,000 µg F/g, Cacit and TMP were as effective as a gold standard one.