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PubMed2001

Single-tooth implant-supported restorations. Planning for an aesthetic and functional solution.

The single-tooth implant has found widespread support within the field of implant dentistry, with numerous studies reporting high success rates that surpass those recorded for splinted implant bridgework. Improvements in implant design, range of prosthetic components and restorative materials have made it possible to achieve optimal functional and cosmetic results. Coupled with an appropriate approach to treatment planning and patient assessment, use of the single-tooth implant may be considered a highly predictable treatment solution.

Ceramics↗
PubMed2000

Current trends in removable prosthodontics.

BACKGROUND: This article discusses trends in the demographics and treatment of the edentulous patient. It is clear that there still is a tremendous need for removable-prosthodontic services today. While the basic process of making dentures has changed little over the past several decades, new materials and techniques can help laboratories and clinicians provide functional, esthetic restorations that offer exceptional value to patients. Implant treatment is a tremendous adjunct to removable prosthodontics in the treatment of edentulous patients, but it is not within the financial reach of all dental patients. CLINICAL IMPLICATIONS: The clinical skills required to deliver excellent complete denture care are also paramount to successful implant prosthodontics (fixed and removable) and esthetic dentistry. Even so, the opportunities to develop these skills and the interest appear to be decreasing at the same time that the need is projected to increase. In service to our patients, the profession must examine this trend closely.

Adult↗
PubMed1999

Use of discriminant and regression analyses to modify a clinical certification board examination.

The National Dental Examining Board of Canada (NDEB) conducts mandatory, high stakes, pass/fail, certification examinations for dental licensure. One of these examinations was a seven-part, simulated clinical examination in which candidates were required to perform procedures on typodonts. These requirements were two intracoronal and two extracoronal preparations, an amalgam restoration, a provisional crown, and a diagnostic wax-up. Feedback from candidates and examiners indicated that one or more of the requirements may not have been contributing effectively to the overall evaluation of candidates. The NDEB's Clinical Examination Committee therefore requested that an in-depth statistical analysis be performed to identify potential areas of concern and to provide a basis for modifying the examinations. The results of two examination sessions with a total of 168 candidates were subjected to both a discriminant and a logistic regression analysis. Every candidate had results for each of the seven requirements, and no candidate participated in both sessions of the examination. The discriminant analysis revealed that six of the seven requirements could be used to reliably assign examinees according to their true pass/fail classifications. Stepwise discriminant analysis resulted in a 98.81 percent classification success rate with a corresponding 2.50 percent false-positive classification error rate. The logistic regression analysis showed that five components correctly predicted 99.40 percent with a 1.25 percent false-positive rate. The Clinical Examination Committee concluded that one requirement (diagnostic wax-up) should be eliminated and that a second requirement (PFM preparation) be significantly modified and reevaluated. This study demonstrates the usefulness of statistical methods in the analysis and modification of a clinical certification board examination.

Canada↗
PubMedDate not supplied

Evaluation of occlusal contacts in the dental laboratory: influence of strip thickness and operator experience.

PURPOSE: The purpose of this study was to evaluate the influence of recording strip thickness and of operator-dependent factors on the assessment of contact area on a cast mounted on an articulator. MATERIALS AND METHODS: Thirteen dental students and 13 experts (dentists and dental technicians) performed occlusal maneuvers on casts mounted on an articulator, using recording strips of 8- and 40-micron thickness. Contact area, force, and time of biting relative to each group of operators using each type of paper were compared. RESULTS: Both groups obtained significantly greater contact areas with the thicker strip. Students applied significantly stronger but shorter bitings than experts, but obtained smaller contact areas, particularly with the thinner strip. In operators, the extension of contact markings using the 8-micron strip was closely related to the biting time but not to the occlusion force, while neither time nor force of biting had a significant influence when using the 40-micron strip. CONCLUSION: The assessment of occlusal contact in the dental laboratory was significantly influenced by paper thickness, operator experience, biting force, and time. The 40-micron strip was less influenced by operator experience, strength, and duration of biting.

Analysis of Variance↗
PubMed2000

Achieving aesthetic excellence through an outcome-based restorative treatment rationale.

The conceptual basis of restorative-driven implant dentistry is well established among clinicians. Its implementation includes the development of a prosthetic blue-print that will serve as a guide throughout therapy. While these concepts may be applied to prosthetic dentistry in general, their benefits are most compelling in the treatment of the aesthetic zone. This article demonstrates a systematic multidimensional approach for the establishment and incorporation of definitive aesthetic objectives throughout the diagnostic, adjunctive, and restorative treatment phases.

Color↗