It was determined if Periodontic students of the years 1986 and 1987 indicated periodical maintenance care in their patients treated of Periodontal disease. 598 cards were revised. 130 of them showed the indication of maintenance care. These patients received registered letters for controlling. Only 20 of them complied. A clinical examination was made: Radiographic control wasn't made because there wasn't a radiographic Kardex of old radiographies of previous years.
Photography is important in everyday dentistry. Using acquired skill it is possible for anyone to produce a reasonable clinical photograph. To obtain good results it is necessary to be aware of the controlling factors: the lens, camera, lighting direction, length of exposure and the type and color balance of the film. The following text should help the clinician to choose equipment best suited to his/her practice.
This review analyzes in the periodontal regeneration, main objective of the periodontal therapy, the effects of the mechanical and surgical procedures, the results of the conditioning radicular agents and of the biochemical mediators and, at last, the consequences of the exclusion of the gingival epithelium in the "guided tissue regeneration".
The optimal result of periodontal therapy is the regeneration of tissues previously destroyed by periodontal disease. In order for regeneration to occur, it is believed necessary to eliminate all root surface alterations. Preparation of the root surface include scaling and root planning, use of acids and other chemical and biological agents. Citric acid has been studied by several authors, but still remains in controversy the biological nature of its effects. In spite of this, the findings of some studies indicate that citric acid used on root surfaces results in: elimination of endotoxins; chemical, exposure of dentin collagen fibers; induction of cementogenesis by the exposed dentin; demineralization of root cementum; enhancement of fibroblast attachment when a plasma factor is used in addition to citric acid demineralization and influence on direction in which the epithelium initially starts to migrate. By the other hand root surface preparation by mean of scaling and root planning is an unpredictable procedure due to variables such as failure to remove the cementum on calculus debris in a clinical situation. New research is needed in order to obtain a predictable root conditioning procedure for a biological surface.
The present communication discusses the regenerative potential of periodontal tissues in the reestablishment of new tissue attachment, by excluding the epithelium and connective gingival tissue using filters or membranes that covers the instrumented root surfaces.
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