J Korean Dent Sci.  2016 Dec;9(2):49-54. 10.5856/JKDS.2016.9.2.49.

Relationship between Gingival Biotype and Underlying Crestal Bone Morphology

Affiliations
  • 1Department of Periodontology, Ajou University School of Medicine, Suwon, Korea. heroine622@hanmail.net

Abstract

PURPOSE
The purpose of this study was to assess the relationship between gingival biotype and underlying crestal bone morphology in the maxillary anterior region.
MATERIALS AND METHODS
The maxillary anterior teeth from 40 subjects (20 thin biotype, 20 thick biotype) with ages from 20 to 50 years were included in this study. All subjects had healthy gingiva in the maxillary anterior region and had no history of orthodontic treatment, periodontal treatment, or hyperplastic medication. Using the probe transparency method, the scalloped distance (SCD) between the contact point-bone crest and the midface-bone crest was measured for each maxillary anterior teeth of two groups. RESULT: The mean SCD was 3.00±0.21 mm in thin biotype and 2.81±0.20 mm in thick biotype. The SCD value in the thin biotype was statistically significantly greater than in the thick biotype (t=2.982, P<0.01). Comparing the degree of crestal bone scallop in each maxillary anterior teeth in the two groups, all six teeth in the thin biotype showed higher bone scallop than in the thick biotype.
CONCLUSION
A simple procedure using a probe could to determine gingival biotype and to predict the underlying crestal bone morphology was introduced. This may be useful for effective treatment planning.

Keyword

Anterior teeth; Crestal bone; Gingival biotype; Maxilla

MeSH Terms

Gingiva
Maxilla
Methods
Pectinidae
Tooth
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