去端肽胶原修复下颌第三磨牙拔除后邻牙远中骨缺损的自身对照研究

目的:评价去端肽胶原对下颌第三磨牙拔除后邻牙远中骨缺损再生的临床效果.方法:选择2019年1月—2019年7月就诊于山西医科大学口腔医院颌面外科的双侧下颌第三磨牙均为水平中位阻生的患者32例,采用第二磨牙颊侧龈沟内结合远中颊侧切口、不去骨的方法拔除双侧下颌第三磨牙后,随机选择一侧作为实验组,拔牙窝植入去端肽胶原;另一侧...

Application of atelo-collagen for distal bone defect restoration of the second molar after mandibular third molar extraction: a split-mouth clinical trial

PURPOSE: To evaluate the clinical effect of atelo-collagen grafting on reconstruction of intrabony defects of the second molar after mandibular third molar extraction. METHODS: Thirty-two patients who had their mandibular third molars extracted at Shanxi Medical University Hospital of Stomatology from January 2019 to July 2019 were included in this study. Bilateral mandibular third molars were in horizontal position in all patients. After extraction, the same person's tooth sockets were divided into two groups: the control group and the atelo-collagen group. The tooth sockets in the control group received colloidal silver gelatin sponge, while in the atelo-collagen group atelo-collagen was used to fill the sockets. The patients were followed up for 3, 6 months. Assessments of distal buccal probing depth of the second molar and X-ray examination were performed 3, 6 months postoperatively. The data were analyzed with SPSS 24.0 software package. RESULTS: Probing depths were improved after operation in both groups. There was no significant difference between the two groups. The height and bone density of the new bone in the atelo-collagen group were significantly higher than those in the control group(P<0.001). Three months after operation, the volume of new bone in the atelo-collagen group was significantly larger than the control group. CONCLUSIONS: Atelo-collagen can promote bone regeneration and reconstruction in the intrabony defect of second molar caused by extraction of mandibular third molar.