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目的:探讨牙龈增生、牙龈炎在不同社会背景下的固定矫治患者中发病率及相关因素。方法:收集正畸治疗中或刚刚拆除矫治器的患者250名,随机分为2组。在接受矫治6~12个月和≥12个月时,由牙周专科医师检查菌斑及牙龈指数、牙周袋深度、附着丧失及牙龈增生程度。患者的社会经济背景,正畸治疗持续时间,正畸过程中牙线使用情况被记录下来。之间的相关性建立泊松回归模型,并使用多元性回归分析法进行分析。结果:牙龈出血(RR 1.02;95%CI 1.01-1.02)和托槽周围多余的树脂残留(RR 1.04;95%CI 1.04-1.05)跟牙龈增生有高度相关性。社会背景跟牙龈增生无相关性。结论:在正畸治疗患者中前牙牙龈出血和托槽周围多余树脂残留跟牙龈增生程度成正相关。
Objective: To investigate the incidence and related factors of gingival hyperplasia and gingivitis in patients with fixed orthodontic treatment under different social backgrounds. Methods: A total of 250 orthodontic patients or patients with orthodontic appliances were randomly divided into two groups. At 6-12 months of treatment and ≥12 months of treatment, the periodontal specialist examines plaque and gingival index, periodontal pocket depth, loss of attachment, and degree of gingival hyperplasia. The patient’s socio-economic background, duration of orthodontic treatment, and floss use during orthodontics were recorded. Poisson regression model was established and analyzed using multivariate regression analysis. RESULTS: Gingival bleeding (RR 1.02; 95% CI 1.01-1.02) and excess resin residue around the brackets (RR 1.04; 95% CI 1.04-1.05) were highly correlated with gingival hyperplasia. Social background with gingival hyperplasia no correlation. CONCLUSIONS: Gingival bleeding from the anterior teeth and excess residual resin around the brackets in orthodontic treatment are positively related to the degree of gingival hyperplasia.