Implant Dentistry

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Implant Dentistry:
doi: 10.1097/ID.0b013e318271d487
Basic and Clinical Research

Anterior Maxillary and Mandibular Biotype: Relationship Between Gingival Thickness and Width With Respect to Underlying Bone Thickness

Pascual La Rocca, Andres DDS*; Santos Alemany, Antonio MD, MSc*; Levi, Paul Jr DMD; Vicario Juan, Monica DDS*; Nart Molina, Jose DDS; Weisgold, Arnold S. DDS§

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Purpose: Periodontal biotype is considered to be a significant factor related to successful dental treatments. The purpose of this study was to determine the relationship between gingival thickness (GT) and width with respect to the underlying bone thickness in the maxillary and mandibular anterior sextant.

Materials and Methods: Overall, 180 anterior teeth within healthy patients were assessed. GT and buccal bone thickness (BT) were measured at 3 locations: crestal/gingival margin, tooth apex, and a midpoint between the 2. In addition, the apicoincisal gingival width (GW) was recorded. Clinical and cone beam CT measurements were compared and correlated.

Results: No statistically significant relations were observed between GT and BT measures at any of the 3 positions. The mean GT at crestal mid and apical position for the maxillary teeth was 1.01 (±0.58) mm, 1.06 (±0.48) mm, and 0.83 (±0.47) mm, respectively, and the corresponding mean BT was 1.24 (±0.90) mm, 0.81 (±0.33) mm, and 2.78 (±1.62) mm, respectively. The GW is directly related (R = 0.007; P < 0.05) to the crestal BT.

Conclusion: In this study, the GT is not linked to the BT. However, the GW seems to be associated with the crestal BT.

© 2012 Lippincott Williams & Wilkins, Inc.


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