الفهرس 
AbstractOnly 14 pages are availabe for public view
 |  | from | 154 |  |  |
| | | from | 154 | | |
Abstract
The main objective of the study: Evaluation of gingival biotypes and width of keratinized
gingiva of anterior teeth in adults with abnormal skeletal jaw relations. Methodology: This
cross-sectional study included 182 orthodontic patients (74 males, 108 females) who applied for
orthodontic treatment in faculty of Dentistry, Cairo University starting from 1st of November
2018 till 31th of October 2019. Only patients with skeletal class II and skeletal class III were
enrolled in the study. They were included based on Wit;s appraisal measured on lateral
cephalometric radiograph taken as a record for orthodontic treatment. They were further divided
into six groups based on vertical growth pattern according to facial axis angle. Gingival biotypes
for the anterior teeth have been determined either thick biotype or thin biotype using probe
transparency method. Width of keratinized gingiva has been measured for each anterior tooth
using digital caliper. Results: The results of this study have showed statistical significant
decrease in the percentage of thin gingival biotypes in upper anterior teeth in skeletal Class II
patients with hyperdivergent growth pattern. Also there was a statistical significant increase in
the distribution of thin gingival biotypes in lower anterior teeth in skeletal class II patients with
normal vertical growth pattern and skeletal class III patients with hyperdivergent growth pattern.
Width of keratinized gingiva of anterior teeth seems not to be correlated with different skeletal
sagittal and vertical malocclusion patterns. Conclusion: There is a positive correlation between
thin gingival biotype and lower anterior teeth in skeletal class II patients with normal vertical
growth pattern, and skeletal class III patients with hyperdivergent growth pattern.