基于CBCT评价牙周加速成骨正畸治疗对双颌前突患者牙周与牙根的影响  

Evaluation of the effects of periodontal accelerated osteogenesis orthodontic treatment on periodontal and tooth root in patients with bimaxillary protrusion based on CBCT

作　　者：林少云 LIN Shao-yun(Department of Stomatology,Dafeng Hospital,Shantou 515154,China)

机构地区：[1]汕头市潮阳区大峰医院口腔科,广东汕头515154

出　　处：《中国处方药》2024年第8期188-191,共4页Journal of China Prescription Drug

摘　　要：目的基于口腔颌面锥形束CT(CBCT)评价双颌前突患者应用牙周加速成骨正畸(PAOO)治疗对牙周与牙根的影响。方法以2021年1月~2023年5月正畸科收治的40例双颌前突患者为研究对象,随机数字表法分为对照组与试验组各20例。两组均拔除上下第一前磨牙,常规矫正,排齐牙列,整平Spee曲线。对照组植入种植体支抗,试验组在此基础上行PAOO,两组术后均即刻加载内收前牙,定期复诊加力,术后随访至拔牙间隙关闭后3个月。分别于Spee曲线整平后、末次随访时测定两组下颌前牙区唇侧牙龈退缩度与角化龈宽度,评价两组牙周软组织变化。同期拍摄CBCT,基于CT影像测量下颌前牙区唇侧牙槽骨面积、唇侧/舌侧牙槽骨高度、唇侧牙槽骨厚度与牙根长度,评价两组牙周硬组织与牙根长度变化。结果末次随访时,试验组牙龈退缩度与牙根长度同对照组比较,差异无统计学意义(P>0.05),角化龈宽度大于对照组,唇侧牙槽骨面积、唇侧/舌侧牙槽骨高度与唇侧牙槽骨厚度均高于对照组,差异有统计学意义(P<0.05)。结论在双颌前突患者前牙内收中应用PAOO可以有效增加下颌前牙区角化龈宽度与牙槽骨量,利于牙槽骨高度保持且不会增加牙龈退缩与牙根吸收风险。Objective Based on oral and maxillofacial cone beam CT(CBCT),the effects of periodontal accelerated osteogenesis orthodontic(PAOO)on periodontal and tooth roots in patients with bimaxillary protrusion were evaluated.Methods Taking 40 patients with bimaxillary protrusion admitted to the stomatology department of a hospital from January 2021 to May 2023 as the research subjects,they were divided into the experimental group and the control group by using the random number table method,20 cases in each group.In both groups,the upper and lower first premolars were extracted,and routine correction was performed to align the dentition and smooth the Spee curve.The control group received implant anchorage,and the experimental group underwent PAOO on the basis of the control group,both groups were loaded with retracted anterior teeth immediately after surgery,and had regular follow-up visits to add force.Postoperative follow-up was conducted until 3 months after the extraction gap was closed.The labial gingival recession and keratinized gingival width in the lower anterior teeth area of the two groups were measured after Spee curve flattening and at the last follow-up,and the changes in periodontal soft tissue of the two groups were evaluated.CBCT was taken at the same time.The labial alveolar bone area,labial/lingual alveolar bone height,labial alveolar bone thickness and root length of the lower anterior teeth area were measured based on the CT images,and the changes in periodontal hard tissue and root length of the two groups were evaluated.Results At the last follow-up,the gingival recession and root length of the experimental group were compared with those of the control group,the differences were not statistically significant(P>0.05);the keratinized gingival width was greater than that of the control group,and the labial alveolar bone area,labial/lingual alveolar bone height,labial alveolar bone thickness were all higher than those of the control group,the differences were statistically significant(P<0.05).Conclusio

关 键 词：双颌前突 牙周加速成骨正畸 CBCT 牙周 牙根 

分 类 号：R783.5[医药卫生—口腔医学]