Lewis MW, Wasson W, Scarbecz M
… +3 more, Aubertin MA, Woods M, Himel VT
J Tenn Dent Assoc
· 2011 · PMID 22256701
Access to and awareness of oral healthcare in the United States have been highlighted in the mass media and discussed among diverse populations. The current surge to provide access to oral healthcare for citizens springs...Access to and awareness of oral healthcare in the United States have been highlighted in the mass media and discussed among diverse populations. The current surge to provide access to oral healthcare for citizens springs from this quagmire of oral healthcare issues which affects global to local (grassroots) communities. Publications by the World Health Organization's (WHO) Health for All and the United States' Healthy People have set into motion an agenda by which institutions, healthcare professionals and governments can develop action plans to foster and nurture grassroots organizations to address these issues. An initiative has been undertaken by members of the faculty, student doctors and staff of the University of Tennessee Health Science Center, College of Dentistry (UTHSC CoD) and its partners. This cadre of volunteers has implemented grassroots efforts for the citizens of western Tennessee to date as the flagship of Tennessee Smiles: UT Grassroots Oral Health Outreach Initiative (Tennessee Smiles). By participation in health fairs, school programs and other cultural events, these volunteers have made a difference in the lives of thousands of Tennessee citizens who need exposure to information regarding their oral health care needs. The authors discuss the basis for the Tennessee Smiles organization, their successes and challenges. Future plans and the need for support of the organization are emphasized.
Computer assisted simulation is an important teaching modality in the preclinical training of students. In order to maximize the potential of this learning tool, the University of Tennessee's College of Dentistry has suc...Computer assisted simulation is an important teaching modality in the preclinical training of students. In order to maximize the potential of this learning tool, the University of Tennessee's College of Dentistry has successfully incorporated DentSim technology into the restorative curriculum and has recently acquired the technology to make image guided implantology available to students, residents and faculty. This article describes the university's history and experience with simulation as a learning tool. The purpose of this article is to provide information to other educational institutions on the use of virtual reality simulation in the classroom.
In the coming years, Tennessee and the rest of the country will experience a burgeoning number of senior residents, including those with disabilities. A review of these developments in one state and its counties, and the...In the coming years, Tennessee and the rest of the country will experience a burgeoning number of senior residents, including those with disabilities. A review of these developments in one state and its counties, and the anticipated demand for dental services, is presented.
Two clinical cases of the unusual occurrence of cemento-osseous dysplasia in men and the clinical, radiographic and demographic findings that formed the basis for their diagnosis and management are presented.Two clinical cases of the unusual occurrence of cemento-osseous dysplasia in men and the clinical, radiographic and demographic findings that formed the basis for their diagnosis and management are presented.
OBJECTIVES: The purpose of this study was to test and compare the tensile bond strength of three dual-cure bonding systems on dentinal surfaces. METHODS: Scotchbond MP Plus (3M Dental Products, St. Paul, MN 55144-1000),...OBJECTIVES: The purpose of this study was to test and compare the tensile bond strength of three dual-cure bonding systems on dentinal surfaces. METHODS: Scotchbond MP Plus (3M Dental Products, St. Paul, MN 55144-1000), Allbond 2 (Bisco INC. Itasca, IL 60143) and Prime & Bond 2.1 Dual Cure (DENTSPLY Caulk, Milford, DE 19963-0359) were the three agents tested following manufacturer's instructions on flat dentinal surfaces. A total of 60 teeth were obtained, prepared and stored in distilled, deionized water prior to testing. Twenty teeth were distributed randomly to each bonding agent product. Ten of the 20 were light-cured and the other 10 were activated chemically, thereby creating six experimental groups. "Enforce" (DENTSPLY Caulk) resin cement was placed in a cylinder on the bonding agent interface in all 60 teeth. A pull test was performed using an Instron machine (Instron Corp., Canton, MA 02021) at a speed of 1 mm/min and under continuous load until failure. RESULTS: This study demonstrated that no significant difference existed among the means of the six sample groups involved when they were compared against each other using two-way ANOVA (p < 0.05). Yet, when comparing light-cured samples as a group, versus chemically-cured samples, light-cured samples produced a significantly stronger bond. When comparing adhesive systems, regardless of the cure method, Scotchbond MP Plus resulted in a significantly stronger bond than Allbond 2. When only comparing chemically-cured samples, Scotchbond MP Plus was significantly stronger than Allbond 2. Prime & Bond 2.1 was not significantly different than Scotchbond MP Plus or Allbond 2 regardless of cure type. No difference existed when comparing only light-cured samples. CLINICAL RELEVANCE: The bond strengths of adhesive systems are critical for the dentist in deciding which product to purchase to ensure the restoration will be a long-lasting one.
Scientific advances in the creation of restorative biomaterials, in vitro cell culture technology, tissue engineering, molecular biology and the human genome project provide the basis for the introduction of new technolo...Scientific advances in the creation of restorative biomaterials, in vitro cell culture technology, tissue engineering, molecular biology and the human genome project provide the basis for the introduction of new technologies into dentistry. This review provides an assessment of how tissue engineering, stem cell, genetic transfer, biomaterial and growth factor therapies can be integrated into clinical dental therapies to restore and regenerate oral tissues. In parallel to the creation of a new field in general medicine called "regenerative medicine," we call this field "regenerative dentistry." While the problems of introducing regenerative therapies are substantial, the potential benefits to patients and the profession are equally ground-breaking. In this review, we outline a few areas of interest for the future of oral and dental medicine in which advancements in basic science have already been adapted to fit the goals of 21st century dentistry.
Teeth seldom fracture under normal functional loading. This indicates that the natural tooth design is optimized for the distribution of regular masticatory forces by means of its properties and structure. When a tooth i...Teeth seldom fracture under normal functional loading. This indicates that the natural tooth design is optimized for the distribution of regular masticatory forces by means of its properties and structure. When a tooth is restored with an intracoronal restoration, however, the incidence of tooth fracture increases. Since remaining tissues do not change, the restorative actions apparently alter the original stress distributions. In this study, the effect of different restoration types (unbonded amalgam and bonded composite restorations) were compared with the original stress conditions of the intact tooth, using finite element analysis. It was shown that an unbonded amalgam restoration did not restore the original stress conditions but led to much higher stresses in the buccal and lingual enamel and to higher tensile stresses in the cavity floor. The unbonded amalgam thus filled the cavity but did not restore the tooth. In contrast, a bonded composite restoration restored the original stress pattern in the tooth if there was no polymerization shrinkage. Polymerization shrinkage causes residual tensile stresses in the dentin around the cavity and in the buccal and lingual enamel. Residual tensile stresses in the buccal and lingual enamel are momentary compensated by compressive stress components during occlusal loading. It was concluded that bonding and elimination of residual stresses are prerequisites for restoring the original tooth integrity.
Vitamin D has been shown to regulate musculoskeletal health by mediating calcium absorption and mineral homeostasis. Evidence has demonstrated that vitamin D deficiency may place subjects at risk for not only low mineral...Vitamin D has been shown to regulate musculoskeletal health by mediating calcium absorption and mineral homeostasis. Evidence has demonstrated that vitamin D deficiency may place subjects at risk for not only low mineral bone density/osteoporosis and osteopenia but also infectious and chronic inflammatory diseases. Studies have shown an association between alveolar bone density, osteoporosis and tooth loss and suggest that low bone mass may be a risk factor for periodontal disease. Several recent reports demonstrate a significant association between periodontal health and the intake of vitamin D. An emerging hypothesis is that vitamin D may be beneficial for oral health, not only for its direct effect on bone metabolism but also due to its ability to function as an anti-inflammatory agent and stimulate the production of anti-microbial peptides.
Rosebush MS, Rao SK, Samant S
… +4 more, Gu W, Handorf CR, Pfeffer LM, Nosrat CA
J Tenn Dent Assoc
· 2011 · PMID 21748976
Oral cancer is arguably the most serious condition that dental providers may encounter in their practice. The relatively poor prognosis associated with oral cancer highlights the importance of the dental team's awareness...Oral cancer is arguably the most serious condition that dental providers may encounter in their practice. The relatively poor prognosis associated with oral cancer highlights the importance of the dental team's awareness of the disease. While many characteristics of oral cancer have endured over time, new research is revealing trends that are changing the way we approach its screening, diagnosis and treatment. In this report, we provide a translational overview of oral cancer, including risk factors, signs and symptoms, clinical management, as well as our recent findings on the role of chronic inflammation in the development of the disease. In addition, our recent genetic profiling approach in both cancer cell lines and in patients has identified potential biomarkers, molecular pathways and therapeutic drugs (Velcade and Aspirin) for oral squamous cell carcinomas. This comprehensive review should be of interest to all dental professionals.
When the goal of restorative treatment is to maintain the patient's preexisting intercuspation and occlusal vertical dimension (OVD) following tooth preparation for crowns or fixed partial dentures (FPDs), casts must be...When the goal of restorative treatment is to maintain the patient's preexisting intercuspation and occlusal vertical dimension (OVD) following tooth preparation for crowns or fixed partial dentures (FPDs), casts must be mounted on an articulator in the same pretreatment tooth-to-tooth relationship. A simple technique is described that uses acrylic transfer copings over prepared teeth to record and preserve this relationship so that working and opposing casts can be mounted accurately. The technique may be used to recapture the lost third leg of the tripod after teeth have been prepared. To further reduce errors when mounting casts onto an articulator, a method is recommended that uses rigid connectors to join and stabilize casts in a manner that minimizes potential movement during placement and setting expansion of gypsum mounting materials.
Access to care continues to be an overriding issue in dentistry. The development of new categories of dental auxiliaries, such as mid-level providers, is a matter of concern to many states and the dental profession. Tenn...Access to care continues to be an overriding issue in dentistry. The development of new categories of dental auxiliaries, such as mid-level providers, is a matter of concern to many states and the dental profession. Tennessee has an EFDA educational program for dental auxiliaries taught by dental school educators who have trained more than 300 auxiliary personnel in restorative and prosthetic dentistry. Graduates of this educational program have helped keep Tennessee's dentists well ahead of any increased demand for dental care.
Composite veneers can be fabricated directly on a vinyl polysiloxane (VPS) die. Using the following technique, a dentist (or their trained auxiliary) can quickly fabricate an esthetic composite veneer with an acceptable...Composite veneers can be fabricated directly on a vinyl polysiloxane (VPS) die. Using the following technique, a dentist (or their trained auxiliary) can quickly fabricate an esthetic composite veneer with an acceptable marginal fit. This article describes such a technique.
This article presents a novel technique for developing a master cast for two implants which are clinically placed convergent and very close to each other. The technique consists of making an implant level impression usin...This article presents a novel technique for developing a master cast for two implants which are clinically placed convergent and very close to each other. The technique consists of making an implant level impression using a transfer coping for the posterior implant. Then fabricate a positional index intraorally, which contains a registration of the second transfer coping, the healing abutment reattached from the transfer in the impression and the adjacent teeth. The master cast is altered, using this positional index to incorporate the second implant analog.
PURPOSE: The purpose of this study was to evaluate the gain in knowledge of oral health after education to pregnant women on dental anticipatory guidance and to determine how much of this information pregnant women retai...PURPOSE: The purpose of this study was to evaluate the gain in knowledge of oral health after education to pregnant women on dental anticipatory guidance and to determine how much of this information pregnant women retain over time. METHODS: The study consisted of 40 pregnant women. Inclusion criteria included: (1) between the ages of 21-40; (2) in 12-40th week of pregnancy; and (3) spoke English. During the first visit, all subjects were asked to complete a pre-test (24 questions), watch a ten minute presentation and complete the post-test (24 questions). During the second visit (4 weeks/1 month after the first visit), all subjects were asked to complete the follow-up test (24 questions). RESULTS: All of the tests (pre, post and follow-up) were scored and used to determine the changes in knowledge of the pregnant women after the presentation. The mean age for all 40 pregnant women was 26.88 (SD +/- 4.3) years and the mean number of weeks pregnant was 25.2 at the first visit. The mean overall correct scores for the pre-test was 12.9 (53.75%), post-test was 20.9 (87.08%) and follow-up test was 20.17 (84.05%). These overall scores show an improvement of 8 (33.33%, p<0.05) questions correct from the first to second test, and a digression of 0.73 (3.08%) questions correct from the second to third test. CONCLUSIONS: These observations indicate that in this study population pregnant women's knowledge improved after a presentation on dental anticipatory guidance. These observations also indicate that after four weeks, pregnant women were able to retain most of the information, as only a slight digression in overall scores was noticed from the follow-up test to the post-test.