应用PLANMECA数字化曲面体层机研究牙周基础治疗后牙槽骨密度变化

摘要

目的 应用PLANMECA数字化曲面体层机Dimaxis Pro4.5.0(ZH)软件分析系统对比牙周基础治疗前后牙槽骨密度的改变情况.方法 选择中、重度牙周炎患者69例(慢性牙周炎50例,侵袭性牙周炎19例),利用PLANMECA数字化曲面体层机Dimaxis Pro 4.5.0(ZH)软件分析系统对牙槽嵴顶以及牙冠部分的灰度值进行测量,选定同一部位牙槽嵴及牙冠,对比治疗前后牙槽嵴/牙冠灰度比值的改变量.结果 采用配对t检验对基线及治疗后3个月、6个月,同一牙槽嵴顶的灰度比值进行比较,治疗后3个月的牙槽嵴灰度比值明显高于基线的牙槽嵴灰度比值；治疗后6个月的牙槽嵴灰度比值比基线时明显升高,而治疗后3个月的与6个月的相比差异无显著性.结论 牙周基础治疗是有效地控制牙周炎症的治疗方法,可以促进牙槽嵴顶部分的骨恢复,增加牙槽嵴顶部分的骨密度.%Objective To explore the changes of alveolar density following non -surgical treatment. Methods 69 patients with moderate and severe periodontitis(50 patients with chronic periodontitis, 19 patients with aggressive periodontitis) were selected in this research. The grey values of alveolar crests and tooth crowns were measured with PLANMECA digital panorama tomograph Dimaxis Pro 4. 5.0{ ZH) software. The changes of the grey values of the alveolar crests and tooth crowns were compared at baseline and 3 months and 6 months after therapy. Results The grey values of the alveolar crests and tooth crowns were significantly increased 3 months(P<0. 05) and 6 months( P < 0.05) after non -surgical treatment. Conclusions Non -surgical treatment was a very efficient therapy. It could promote the recovery of alveolar crest and increase the density of alveolar crest.