RESUMEN
OBJECTIVE@#To investigate the periodontal status in patients with oral submucous fibrosis (OSF), and to provide reference for the treatment and prophylaxis in patients with OSF and betel chewers.@*METHODS@#Fifty samples clinically and pathologically diagnosed as OSF patients were selected as the OSF group, another 50 age-matched healthy volunteers in the similar living condition were compared with the OSF patients and non-betel nut chewers were classified as the control group. The 5 periodontal clinical parameters were collected and recorded, including plaque index, periodontal probing depth, clinical attachment loss, gingival index, and tooth count of bleeding of probing.@*RESULTS@#There was a significant difference in plaque index (PLI) between the OSF group (2.14+/-0.64) and the control group (1.7+/-0.89) (P0.05).@*CONCLUSION@#OSF patients tend to accumulate plaque, and have deep periodontal pocket, periodontal inflammation or severe periodontal damage.