Measurement and Analysis of Keratinized Gingival Width in Keratinized Gingival Augmentation Procedure

doi:10.13701/j.cnki.kqyxyj.2023.12.007

Abstract

Abstract: Objective: To compare the difference of keratinized gingival width increments by three methods and provide a reference for the measurement standard of clinical keratinized gingival width. Methods: Totally 46 patients who underwent keratinized gingival widening surgery in the Department of Periodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University from December 2020 to May 2022 were included, and were randomly divided into experimental group (grafted with absorbable gradient membrane) and control group (grafted with autogenous free gingival). Three methods were used to measure the width of keratinized gingival (KW) before operation and 6 months after operation: buccal midpoint method, buccal mesial/central/distal point method, and custom point method. The difference of KW increments between three groups was calculated according to the whole group, different partitions, and different tooth number. Results: Overall, there was no significant difference in KW increments between three groups (P>0.05). In terms of the surgical area, there was no significant difference in KW increment between three measurement methods in the anterior area (P>0.05), but in the posterior area, there was a significant difference between method 3 and method 1 in the experimental group (P=0.04), and there was no significant difference among three groups in the control group (P>0.05). When the number of teeth was less than 3, there was no significant difference in KW increments in both groups (P>0.05). When the number of teeth was 3 or more, the KW increment difference between method 3 and method 1 in the test group was statistically significant (P=0.006), and the difference between method 3 and method 2 was also statistically significant (P=0.017), while the difference between three groups in the control group was not significant (P>0.05). Conclusion: The three measurement methods of KW are feasible for the evaluation of keratinized gingival wide increment. The most convenient buccal midpoint method can be preferred for clinical application.

Key words: keratinized gingival augmentation, keratinized gingival width, measurement

KE Xiaojing, ZHOU Wei, LI Yanfen, TAN Baochun, LI Houxuan. Measurement and Analysis of Keratinized Gingival Width in Keratinized Gingival Augmentation Procedure[J]. Journal of Oral Science Research, 2023, 39(12): 1063-1068.

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