title: Crown lengthening: basic principles, indications, techniques and clinical case reports.
abstract: Sometimes, in order to properly restore teeth, surgical intervention in the form of a crown-lengthening procedure is required. Crown lengthening is a periodontal resective procedure, aimed at removing supporting periodontal structures to gain sound tooth structure above the alveolar crest level. Periodontal health is of paramount importance for all teeth, both sound and restored. For the restorative dentist to utilize crown lengthening, it is important to understand the concept of biologic width, indications, techniques and other principles. This article reviews these basic concepts of clinical crown lengthening and presents four clinical cases utilizing crown lengthening as an integral part of treatments, to restore teeth and their surrounding tissues to health.
authors.affiliation: Periodontic Department, University of Toronto Faculty of Dentistry.
authors.forename: Simon
authors.initials: S
authors.lastname: Yeh
authors.forename: Sebastiano
authors.initials: S
authors.lastname: Andreana
mesh_terms: D000539:Alveolar Process / Q000473:pathology; D000075202:Contraindications; D016556:Crown Lengthening / Q000379:methods; D003731:Dental Caries / Q000628:therapy; D003793:Dental Restoration, Permanent / Q000379:methods; D003801:Dental Veneers; D003830:Denture, Partial, Fixed; D004955:Esthetics, Dental; D005881:Gingiva / Q000473:pathology; D006801:Humans; D011176:Post and Core Technique; D014072:Tooth Abrasion / Q000628:therapy