应用锥形束CT浅析牙周基础治疗对慢性牙周炎牙槽骨骨量的影响  

Effect of Initial Periodontal Therapy on Alveolar Bone in Patients with Chronic Periodontitis:an Evaluation with CBCT

作　　者：赵海礁[1] 谭丽思[1] 王宏岩[1] 赵戬[1] 潘春玲[1] 潘亚萍[1] 

机构地区：[1]中国医科大学附属口腔医院国家临床重点专科牙周科辽宁省转化医学研究中心辽宁口腔医学研究所,辽宁沈阳110002

出　　处：《口腔医学研究》2015年第10期1008-1012,共5页Journal of Oral Science Research

基　　金：辽宁省科学技术计划项目(编号:2013225090)

摘　　要：目的：应用锥形束CT及Simplant软件测量分析不同类型、不同年龄段的慢性牙周炎患者,经过牙周基础治疗后牙槽骨的骨量恢复情况,以期为进一步治疗计划的制定提供临床依据。方法：采用单纯随机抽样法选取2012年2月-2013年2月就诊于中国医科大学附属口腔医院的慢性牙周炎患者50例,其中轻度牙周炎患者15例,中度牙周炎患者18例,重度牙周炎患者17例。采用Simplant软件及t检验观测并比较基线及牙周基础治疗后6个月慢性牙周炎个体的牙槽骨缺损程度,是否进行了统计学分析,请简要补充统计方法及检验水准。结果：不同年龄、不同病损程度的慢性牙周炎患者治疗后6个月与治疗前相比,牙槽骨高度和相对骨密度均有改善。〈50岁的轻度、中度牙周炎患者治疗后6个月的牙槽骨密度均显著高于治疗前（P〈0.05）,牙槽骨距釉牙骨质界的缺损高度均有降低,但与治疗前相比差异均无统计学意义;重度牙周炎患者治疗前后牙槽骨密度和牙槽骨缺损高度均有改善但差异均无统计学意义。随着年龄的增长,牙槽骨缺损高度及相对骨密度的改善程度呈下降趋势且治疗前后差异无统计学意义;前磨牙及磨牙的近中、远中位点治疗后6个月牙槽骨缺损高度及相对骨密度较其他位点改善明显（P〈0.05）。结论：牙周基础治疗在一定程度上可有效改善慢性牙周炎的牙槽骨缺损高度和相对骨密度;锥形束CT及Simplant软件的应用有助于评估治疗前后牙槽骨骨量的变化。Objective：To evaluate the difference of alveolar bone height and density of patients with periodontitis before and after initial periodontal therapy by cone beam computed tomography,and to analyze the influences of age and severity degree to provide clinical basis for further therapy design.Methods：Fifty patients with chronic periodontitis were recruited including15 with mild periodontitis,18 with moderate type and 17 with severe type.The alveolar bone height and bone density were measured with Simplant software and analyzed by t-test to compare the difference between baseline and 6months after treatment.Results：All patients＇ alveolar bone height and density improved after 6months therapy.For the patients younger than 50 years old,alveolar bone density in patients with mild,moderate periodontitis 6months after treatment were significantly higher than that before treatment（P〈0.05）.Alveolar bone height in severe periodontitis after treatment also improved,but showed no significant difference.However,the efficacy of therapy decreased as age increased,as there was no significant difference between before and after treatment.As to different tooth sites,mesial and distal sites of premolar and molar improved much more than other sites,as demonstrated by changes of both alveolar bone height and density（P〈0.05）.Conclusion：Initial periodontal therapy can effectively improve the alveolar bone height and density of patients with chronic periodontitis.CBCT and Simplant software can help to evaluate changes of alveolar bone throughout the treatment.

关 键 词：牙周基础治疗 锥形束CT Simplant软件 牙槽骨 

分 类 号：R781.4[医药卫生—口腔医学]