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Updated: Jan 20, 2026

Inducing Apical Periodontitis in Mice
Published on: August 6, 2019
Influence of Periodontal Parameters on Root Coverage: A Longitudinal Study
Thaís Ribeiral Vieira1, Dhelfeson Willya Douglas-de-Oliveira2, Frederico Santos Lages2
1Department of Periodontology, Dentistry Faculty, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil. thaisrv@terra.com.br.
Objective:
This study aimed to evaluate the effect of initial periodontal clinical parameters on the final outcome of the treatment of periodontal recessions by means of a coronally positioned flap (CPF).
Materials And Methods:
The CPF technique was used in a total of 39 Miller Class I/II gingival recessions of the upper canines and/or premolars. The clinical periodontal parameters evaluated were: probing depth, gingival recession height, gingival recession width, keratinized mucosa, attached keratinized mucosa, flap thickness and free gingival margin thickness. The degree of root coverage was evaluated 6 months and 1 year after the surgery. The data were analyzed by Student's t-test, Mann-Whitney and Pearson's correlation tests, as well as linear regression.
Results:
A significant reduction in gingival recession height, gingival recession width, keratinized mucosa, and attached keratinized mucosa were observed. A significant negative correlation was found between gingival recession and root coverage percentage at 1 year, and a significant negative correlation between gingival margin thickness and coverage percentage at 1 year. The gingival recession and flap thickness significantly predicted the amount of root coverage.
Conclusions:
The initial dimensions of gingival recession and the mucosa thickness were correlated to the percentage of root coverage. The gingival recession width was the major predictor of root coverage.
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