The flourishing integration of periodontal and restorative dentistry for natural teeth requires sound knowledge and application of both mechanical and biological principles. While some restorative margins need to be placed at or below the margin of the free gingiva, this should be considered as a compromise and margins should not be placed more than 0.5 mm into a healthy gingival sulcus. Approximately 2 mm of healthy, sound supra-alveolar tooth surface is needed for attachment of the gingival tissues to the tooth. This dimension is called the biological width. In case adequate biological width does not exist, surgical or orthodontic procedures may be required to expose healthy tooth structure before final restorations are placed. This article explains the use of electrosurgery for the conservative crown lengthening of fractured tooth.

Key words: Eletrosurgery; Crown lengthening; Restorative destistry; ginggival tissues.