固定矫正与牙龈炎的关系探讨

目的 探讨正畸治疗患者牙龈炎发生的原因。方法 选取114例病例，分为成人组和青少年组。成人和青少年组又各自分实验组和对照组。在初戴固定矫正器2个月后检查牙龈，进行牙龈指数（GI）测定，从而比较成人与青少年患牙龈炎的比率。结果 成人组牙龈炎患病率低于青少年组，两者有显著性差异，P＜0．01。青少年对照组与相比，实验组患病率高，两者有显著性差异，P＜0．05。成人对照组与实验组相比，两者无显著性差异，P＞0．05。结论 口腔卫生的保健好坏，对正畸治疗患者牙龈炎的发生有着重要作用。进行正畸治疗的患儿家长，应配合督促儿童保持口腔卫生。

Study of the Relationship between Fixed Orthodontic and Gingivitis

Objective The purpose of this study was to determine the causes of gingivitis in fixed orthodontic patients.Methods The sample consisted of 114 cases, which were divided into adult group and teenage group, each group consisting of test group and control group. Gingival index (GI) was recorded for each individual patient, before fixed orthodontic appliances were inserted and the second month after insertion.Results It was found that there was significant lower GI in adult group than in teenage group;In teenage group, the test group had significant lower GI than the control group; In adult group, there was no significant different between the test group and the control group.Conclusion The pilot study suggests that oral health care allowed for favorable treatment responses in gingivitis patients with fixed orthodontic appliances.