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Review of periodontal considerations and surgical retraction techniques for operative dentistry.

Gingival margins of restorations should generally be placed supragingivally or at the gingival crest; however, some valid parameters exist for the extension of margins into the gingival crevice. The successful restoration of teeth in subgingival locations requires familiarity with periodontal anatomy. This paper reviews periodontal considerations, then presents several surgical techniques that facilitate access and improve the periodontal prognosis of teeth that have been compromised through fracture, caries, prior restorative treatment, or habit.

Dentistry, Operative↗
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↗