title: Relationships between different tooth shapes and patient's periodontal phenotype.
abstract: OBJECTIVE
  The purpose of the present study was to establish whether any correlation exists between tooth shapes and patient-related factors such as gingival and periodontal characteristics.
  
  
  METHODS
  Clinical measurements, including the width and the height of maxillary central incisor crowns, the apico incisal height of the keratinized mucosa (KM), the buccal gingival thickness (GT), the depth of the sulcus (SD), the bone-sounding depth (BS) and the height of the interproximal maxillary central papilla (Ph), were investigated in 50 healthy individuals. These individuals were then divided into three groups based on the shape of their maxillary central incisor crowns: triangular; square; or square-tapered. The three groups were analyzed to determine any significant differences among the groups in the values obtained for clinical measurements.
  
  
  RESULTS
  There were no significant differences among the three groups in terms of the SD (p = 0.11) or the BS (p = 0.54), whilst statistically significant differences were observed for the KM (p < 0.001), the GT (p = 0.012) and the Ph (p < 0.001).
  
  
  CONCLUSIONS
  The results of this study indicate that different tooth shapes are associated with significantly different values for the extent of the KM, its bucco-lingual thickness and the height of the interproximal maxillary central papilla.
authors: University of Padova, School of Dental Medicine, Padova, Italy.
authors: E
authors: E
authors: Stellini
authors: L
authors: L
authors: Comuzzi
authors: F
authors: F
authors: Mazzocco
authors: N
authors: N
authors: Parente
authors: L
authors: L
authors: Gobbato
mesh_terms: D000328:Adult; D000539:Alveolar Process / Q000033:anatomy & histology; D004846:Epithelial Attachment / Q000033:anatomy & histology; D005260:Female; D005881:Gingiva / Q000033:anatomy & histology; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D007180:Incisor / Q000033:anatomy & histology*; D007633:Keratins; D008297:Male; D009811:Odontometry / Q000379:methods; D010519:Periodontium / Q000033:anatomy & histology*; D010641:Phenotype; D023861:Photography, Dental / Q000379:methods; D012907:Smoking; D019228:Tooth Crown / Q000033:anatomy & histology*; D055815:Young Adult
chemical_list: D007633:Keratins
keywords: esthetics; gingival thickness; periodontal biotype; tooth shape