FACTORS ASSOCIATED WITH MILLER CLASS II GINGIVAL RECESSION IN MAXILLARY PREMOLARS
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Abstract
Background: Miller class II recession reaches or extends beyond the mucogingival junction while interproximal tissues are preserved, and should therefore be assessed according to local softtissue parameters. Objective: To determine the proportion of Miller class II recession and analyze selected associated factors in maxillary premolars. Material and methods: This cross-sectional analytical study used baseline data from 78 patients with Miller class I-II recession; Miller class II was the outcome variable. Results: Miller class II accounted for 35.9%. Age, sex, PlI and GI were not significantly associated with Miller class II. Visible recession ≥4 mm, keratinized tissue <3 mm and attached gingiva <2 mm was associated with Miller class II; exploratory logistic regression retained visible recession ≥4 mm and keratinized tissue <3 mm. Side-to-side comparison showed no significant difference, while first premolars had greater visible recession than second premolars without a significant difference in Miller classification. Conclusion: Miller class II was observed in more than one-third of patients, emphasizing careful local soft-tissue and tooth-position assessment before treatment planning.
Keywords
Miller class II, gingival recession, maxillary premolar, keratinized tissue, attached gingiva
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