Zhifang Chen, Wei Zhang
Dept. of Oral and Maxillofacial Surgery, West Hefei Stomatological Hospital, Clinical School of Anhui Medical University, Hefei 230601, China.
Dept. of Orthodontics, West Hefei Stomatological Hospital, Clinical School of Anhui Medical Uni-versity, Hefei 230601, China.
Hua Xi Kou Qiang Yi Xue Za Zhi. 2016 Aug 1;34(4):364-368. doi: 10.7518/hxkq.2016.04.009.
To evaluate the clinical effectiveness of tooth-alveolar bone grafts in repairing dentition defects.
Forty-five patients with dentition defect were divided into two groups according to different operation methods. In group A (n=24), the tooth-alveolar bone grafts of the transplanted tooth and its surrounding alveolar bone were cut using modified surgical orthodontics and then embedded into the designated planting hole. In group B (n=21), the teeth were extracted through conventional tooth transplantation and then embedded into the prepared planting holes. The transplanted teeth were fixed for about 4-6 weeks using the orthodontic method. During the postoperation, which lasted for 2-12 weeks, root canal treatments were administered selectively. The medical effect was regularly followed up and evaluated.
No significant difference was found in the change of color and the periodontal ligament image between the two groups (P>0.05) whereas significant differences were observed in the degree of tooth mobility, the absorption of root and alveolar bone, and the rate of root canal treatment (P<0.05). The curative effect in group A was superior to group B.
Tooth-alveolar bone graft transplantation has overcome some of the limitations of traditional tooth transplantation. Therefore, it is an effective means of repairing dentition defect.
评估牙槽骨移植修复牙列缺损的临床效果。
将45例牙列缺损患者根据不同手术方法分为两组。A组（n = 24），采用改良外科正畸方法切断移植牙及其周围牙槽骨的牙槽骨移植体，然后植入指定种植孔。B组（n = 21），通过常规牙移植拔牙，然后植入准备好的种植孔。采用正畸方法将移植牙固定约4 - 6周。术后2 - 12周期间，选择性进行根管治疗。定期随访并评估治疗效果。
两组牙齿颜色变化及牙周膜影像差异无统计学意义（P > 0.05），而牙齿松动度、牙根及牙槽骨吸收程度、根管治疗率差异有统计学意义（P < 0.05）。A组疗效优于B组。
牙槽骨移植克服了传统牙移植的一些局限性。因此，是修复牙列缺损的有效手段。
