ABSTRACTLatar Belakang: Parafunctional habit (clenching dan bruxism) menurunkan kualitas hidup melalui atrisi, abfraksi, dan resesi gingiva. Penelitian mengenai hal tersebut belum pernah dilakukan di Indonesia. Tujuan: Untuk mengetahui distribusi atrisi, abfraksi, dan resesi gingiva pada pasien dengan parafunctional habit. Metode: Penelitian deskriptif menggunakan data sekunder dari 70 rekam medis periodonsia subjek parafunctional habit di RSKGM FKG UI periode 2013-2017. Hasil: Distribusi terbanyak ditemukan pada subjek parafunctional habit dengan atrisi (50%), dan diikuti atrisi dan abfraksi (32,86%). Distribusi atrisi tertinggi pada subjek clenching terlihat di gigi 31, 32, dan 42 (1,23%), dan pada subjek bruxism di gigi 42 (5,31%). Distribusi abfraksi tertinggi pada subjek clenching terlihat di gigi 14 dan 15 (1,04%), dan pada subjek bruxism di gigi 14 dan 24 (7,25%). Mayoritas subjek parafunctional habit mengalami resesi gingiva (87,14%). Resesi gingiva akibat clenching (42,55%) dan bruxism (30,47%) sering terjadi pada sisi bukal. Resesi gingiva tertinggi pada subjek clenching ditemukan pada gigi 42 (8,51%), sedangkan pada subjek bruxism ditemukan pada gigi 41 (5,5%). Kesimpulan: Subjek parafunctional habit yang mengalami atrisi sebanyak 50%, atrisi dan abfraksi sebanyak 32,86%, dan resesi gingiva sebanyak 87,14%.

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ABSTRACTBackground: Parafunctional habit (clenching and bruxism) decreases quality of life through attrition, abfraction, and gingival recession. No study has evaluated about the problem in Indonesia. Objective: Evaluate distribution of attrition, abfraction, and gingival recession in subjects with parafunctional habit. Methods: A descriptive study using secondary data from 70 periodontal medical records of parafunctional habit subjects in RSKGM FKG UI 2013-2017. Result: Highest distribution was found in parafunctional habit subjects with attrition (50%), followed by attrition and abfraction (32.86%). Highest attrition distribution was seen in tooth 31, 32, and 42 (1.23%) of clenching subjects, and tooth 42 (5.31%) of bruxism subjects. Highest abfraction distribution was found in tooth 14 and 15 (1.04%) of clenching subjects, tooth 14 and 24 (7.25%) of bruxism subjects. Majority of parafunctional habit subjects got gingival recession (87.14%). Gingival recession from clenching (42.55%) and bruxism (30.47%) often occurred at buccal site of teeth. Highest gingival recession was found in tooth 42 (8,.51%) of clenching subjects, and tooth 41 (5.5%) of bruxism subjects. Conclusion: Parafunctional habit subjects experiencing attrition were about 50%, attrition and abfraction were about 32.86%, and gingival recession were about 87.14%.