title: Margin placement of esthetic veneer crowns. Part I: Anterior tooth visibility.
abstract: The visibility of anterior teeth was studied in a population of 425 subjects. Scoring photographic data gave the percentages of anterior teeth that would not show a crown margin if it were placed in incisal, middle, or gingival sections. The results of this study indicate: their anterior teeth which would not show unless the lips were retracted.
mesh_terms: D003442:Crowns; D003779:Denture Design; D004955:Esthetics, Dental; D006801:Humans; D007180:Incisor; D012904:Smiling