Periodontal and dental considerations in clinical crown extension: a rational basis for treatment.

When the clinical crowns of teeth are dimensionally inadequate, esthetically and biologically acceptable restoration of these dental units is difficult. Often an acceptable restoration cannot be accomplished without first surgically increasing the length of the existing clinical crowns; therefore, successful management requires an understanding of both the dental and periodontal parameters of treatment. This report provides further insight into this interdependence by examining the effects of tooth form on the periodontal morphology and surgical treatment, while relating them to requirements for esthetically and biologically acceptable full-coverage dental restorations.

Endodontic cellulitis 'flare-up'. Case report.

Endodontic cellulitis involves facial swelling which can vary from mild to severe and can occur as a primary case or a flare-up following initial treatment of asymptomatic teeth with periapical lesions. The microbial spectrum in primary cases involves a significant mixture of anaerobic and facultative aerobic microbes, chiefly streptococci. In a previous study, cultures from flare-up cases, utilizing the same anaerobic techniques as in primary cases, revealed an absence of obligate anaerobes and an 80 per cent incidence of facultative aerobic streptococci.

The laterally positioned flap.

The laterally positioned flap has shown itself to be the most predictable and esthetically successful procedure in the treatment of mucogingival defects such as gingival/periodontal recessions and root exposures. It is of utmost importance that the biologic principles of wound healing, which have been discussed in the literature and this article, should be adhered to prior to, during, and after the surgical procedure.