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At least 181 records · Page 10Linked to original sources
PubMed2000

Operative dentistry: an alternative to orthodontics.

The purpose of this paper is to describe a clinical case, which highlights the role of Operative Dentistry in the treatment of Dento-alveolar Disproportion in an impoverished tropical environment. The patient had a diastema located between tooth 24 and tooth 25 due to an atypical position of his tongue while swallowing. The patient had been referred to because he could not afford Orthodontics. We suggested a conservative bridge compounded of 2 resin veneers and pontic bounded by the composite tetric ceram. The 0.5 mm teeth reduction concern lingual and proximal faces with retention form, starting at 0.3 mm from the incisal edge to 0.5 mm from the gingiva was performed with diamond burs (Shoulder and finishing). The result was satisfactory and leads us to conclude that Operative Dentistry is a good alternative to Orthodontics in a very specific social context.

Adult↗
PubMed2000

Action research in the professional development of university staff: a case study from operative dentistry.

Action research has long been used in educational research and increasingly features in the professional development of university staff. A brief review of the historical development of action research is presented together with the range of approaches covered and their common characteristics. To illustrate the elements of action research, an example is drawn from operative dentistry. The steps taken by a lecturer to improve a pre-clinical course in operative dentistry are described in some detail and the outcomes of the action are reported and evaluated. The findings support the suitability of action research for professional development in dental education. The kinds of problems likely to be encountered by teachers using this methodology are reported. The ability of the participant investigators to reflect critically on the action taken was found to be a key component of action research.

Attitude↗
PubMed1989

[Simulation with a pre-clinical training system. 1. Practice in operative dentistry using an experimental manequin articulator, jaw model, and artificial teeth].

Clinical practice with patients is the most important part of education for dental students. However there are considerable difference between lecture, basic practice, and clinical practice. Therefore it is difficult to go from basic practice to clinical practice. To overcome this, we developed and introduced a Pre-Clinical Training system using a newly designed manequin, articulater, jaw model, and artificial teeth. This manequin is very similar to patients in appearance. The mandibular part used a semi-adjustable arcon type articulator. The artificial teeth were made of two types of synthetic resins with different hardness for use in operative dentistry. The teeth also have caries areas made of soft black resin. Using this system, the students practiced oral examination, cavity preparation and restoration in operative dentistry.

Dental Articulators↗
PubMed1976

Utilizing learning theory to promote effectiveness of instruction in preclinical operative dentistry.

In comparing two methods of instruction, one must be cautious about forming conclusions because of certain variables which can influence results. Such variables are differences in populations, in instructor effectiveness, and in availability of instructional aids. The comparison does, however, demonstrate differences between the two groups. The fact that the entire class taught by the modified course passed the proficiency examination after nine trials, compared to 12 for those from the traditional course, is not in itself significant. The impressive fact is that in the early trials the rate of students who qualified for clinical practice was nearly doubled in the learning theory group. This might imply that the learning theory group demonstrated a greater degree of problem-solving ability because of opportunities for discovery learning within the course. Since both classes were given the proficiency examination approximately two-and-a-half months after they had completed the preclinical course, it would seem that the learning theory design resulted in retention of the objectives of the course by a significant number of students. Consequently, it is the authors' opinion that the learning theory design provided a more effective method of instruction. Clinical operative dentistry consists of highly intricate procedures which for their successful completion require complex psychomotor responses in the operator. Therefore a program of instruction in operative dentistry must be highly effective. When such a program is organized, utilization of learning theory principles, especially those of skill learning, may aid in achieving this goal.

Dental Cavity Preparation↗
PubMed2000

Minimal intervention: a new concept for operative dentistry.

The term minimal intervention is relatively new in dentistry and has been introduced to suggest to the profession that it is time for change in the principles of operative dentistry. The disease should be treated first; the surgical approach should be undertaken only as a last resort and then with the removal of as little natural tooth structure as possible. This article discusses the advances in techniques and materials that have led to change and attempts to put them into perspective. Treatment should begin with identification and elimination of the disease. There will then be a need for limited restoration of actual cavitation arising from demineralization of the tooth crown. Restorations, per se, will not prevent or eliminate disease. Caries is a bacterial infection and, until the microflora is controlled, all restorations are at risk of further demineralization in remaining tooth structure. This leads to the continuum of replacement dentistry that keeps the profession occupied for much of its productive time. If this cycle is to be broken, the profession must first acknowledge the primacy of prevention.

Bacterial Infections↗
PubMed1989

The need for operative dentistry services: projecting the effects of changing disease patterns.

The declining incidence of caries in children and adolescents has caused speculation that there will soon be a great reduction in need for restorative services among adults. This study used recent dental epidemiological data, population estimates, and numerous alternative assumptions to calculate the hours of adult operative dentistry treatment need in the US in 1972, 1990, and 2030. According to those calculations, the total hours of need were about 125 million in 1972. In 1990 and 2030, the projected hours of need were determined to be about 150 million and 192 million, respectively.

Adolescent↗
PubMed1978

Criterion-oriented grading system for preclinical operative dentistry laboratory course.

The object of this study was to evaluate instructor reliabilities when using empirical or traditional and criterion-oriented grading methods. To do so, 52 sample preparations made in plastic teeth by freshman dental students in the preclinical operative dentistry laboratory course were graded by 12 instructors. The preparations included those for amalgam, inlay, and gold foil restorations. The instructors were divided into two groups according to their teaching experience. Intraclass correlation coefficients were calculated by using a one way analysis of variance technique. The criterion method, in general, yielded greater intraclass correlation coefficients. The increase in the intraclass correlation coefficient was found to be significant at the alpha = 0.10 error level for all restorations judged by experienced instructors. The different degrees of increase in correlation may be attributed to the vary ing clinical biases of the instructors and the differences in the types of preparations.

Analysis of Variance↗
PubMed1987

Operative dentistry in the second century BCE.

An archaeological excavation by the Israel Department of Antiquities and Museums recovered the skeletal remains of 25 people buried in a mass grave dated to approximately 200 BCE. Subsequent analysis of the dentition showed one skeleton with a 2.5-mm bronze wire implanted in the maxillary lateral incisor. This is the first archaeological evidence of operative dentistry in ancient Israel, as well as the earliest date for this specific treatment in the world.

Dentistry, Operative↗
PubMedDate not supplied

Perceived trends in operative dentistry skills: a 10-year comparison.

In this study a random sample of 357 members of dental examiner boards in the United States was surveyed to determine the perceptions of candidate ability on examinations for dental licensure. A response rate of 82% was achieved. Data from this survey were compared to a similar survey conducted 10 years ago. Analysis and comparison of these two surveys indicate that candidate ability in operative dentistry has continued to decline as perceived by dental examiners in the United States over the past decade.

Adult↗
PubMedDate not supplied

Operative dentistry: the missing clinical standards.

Since the development of advanced adhesive technology, the use of amalgam has declined significantly. The search for amalgam substitutes, i.e., restorative materials which maintain similar clinical function and cost-effectiveness as amalgam, has so far been unsuccessful. It has also become evident that a considerable confusion prevails regarding the objectives of restorative procedures. In absence of national and international standards, the products--the restorations--are assessed according to varied criteria. In placing restorations, three objectives are attained, at most: a) tooth preservation, b) tooth preservation and function, and c) tooth preservation, function, and imperceptible restitution. The learning objective of this article is to discuss the positive effects that could be attained by defining the standards, terminology, and the quality assessment criteria for operative dentistry in regard to the patients and the dental profession.

Dental Amalgam↗
PubMed2001

Advances in operative dentistry and fixed prosthodontics.

The rapid developments in biomaterials has led not only to improved materials but also to the development of clinical techniques made possible by these advances. Adhesive dentistry remains one of the fastest changing fields and this will most likely continue well into the next decade. Patients' aesthetic awareness and, to some extent, concern about amalgam has produced a growing demand for posterior tooth-coloured restorations. Originally this was met by ceramo-metal crowns and subsequently by the development of posterior composite resins. Recent development of stronger ceramics and better luting have now made all-ceramic restorations possible in posterior sites. Several new techniques for cavity preparation are emerging as alternatives to the conventional handpiece while the quest for amalgam alternatives continues. As with all recent developments there are, by definition, few long-term clinical data yet available to allow a comprehensive evaluation of the relevant materials and techniques. This paper is a summary of the most significant recent advances in fixed prosthodontics and operative dentistry.

Dental Amalgam↗
PubMed1998

In vitro and in vivo adhesion in operative dentistry: a review and evaluation.

Dentin and enamel bonding agents (DBAs) were introduced in the early 1980s to prevent volumetric shrinkage of composite resins used as restorative materials, to ensure dentin and enamel marginal sealing, and to prevent the dislocation of restorations during occlusal loading of the tooth. Today, DBAs play an important role in cosmetic and aesthetic dentistry and have radically altered the performance of operative dentistry. This article identifies the mechanical and physical properties of DBAs that facilitate the bonding of enamel, dentin, and various other restorations.

Adult↗
PubMed1997

Toward a competency analysis of operative dentistry technique skills.

This research seeks ways to distinguish beginners from competent students based on the manner in which they perform. Five "beginner" students who had passed preclinical operative dentistry technique and six "competent" students one month prior to graduation were videotaped performing an occlusal amalgam preparation on #19 on a typodont. The tapes were scored for time in cutting the preparation and observing it and for "unproductive work" (nonfluencies). The number of changes from one operation to another and the use of instruments as aids in measurement were also recorded. Three processes were identified in every student's performance: rough outline form, making walls parallel and cavosurfaces level, and refinement. All preparations were scored as being clinically acceptable and indistinguishable in quality between the two groups. Beginning students required over twice as long to complete the preparation and changed operations more than twice as often as their competent classmates. Most of these differences between groups occurred in the third, refinement, process. Compared to beginners, competent students showed more evidence of using powerful, internalized schema to guide their performance, were smoother, and seemed less rule-driven.

Clinical Competence↗
PubMed2000

Irrigation rates and handpieces used in prosthodontic and operative dentistry: results of a survey of North American dental school teaching.

PURPOSE: A data baseline on dental cutting methodologies was established by means of a survey of North American dental school teaching. MATERIALS AND METHODS: Sixty-four North American dental schools were surveyed regarding their recommendations on handpiece usage and coolant flow rates in fixed prosthodontics and operative dentistry. RESULTS: High-speed handpieces were the instruments of choice for tooth preparation in fixed prosthodontics. In operative procedures, recommendations for sole use of the high-speed, the low-speed, or both handpiece types were more uniform. CONCLUSIONS: North American dental schools advocate greater use of high-speed than low-speed handpieces. Although the use of high-speed handpieces predominate in schools in Canada and Puerto Rico, there is a proportionately higher use of low-speed handpieces than in US dental schools. Few (approximately 1 in 5) schools made recommendations on coolant flow rates during cutting procedures.

Canada↗