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. 2016 Aug 1;34(4):364-368.
doi: 10.7518/hxkq.2016.04.009.

[Clinical application on restoration of dentition defects using tooth-alveolar bone grafts]

[Article in Chinese]
Chen Zhifang  1 , Zhang Wei  2
Affiliations

[Clinical application on restoration of dentition defects using tooth-alveolar bone grafts]

[Article in Chinese]
Chen Zhifang et al. Hua Xi Kou Qiang Yi Xue Za Zhi. .

Abstract
in English, Chinese

Objective: To evaluate the clinical effectiveness of tooth-alveolar bone grafts in repairing dentition defects.

Methods: 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.

Results: 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.

Conclusions: 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.

目的 评价牙-牙槽骨联合移植修复牙列缺损的临床效果。方法 将45例牙列缺损患者根据牙移植手术方法不同分为2组：A组24例，采用改良的外科正牙手术方法，在供区移植牙周围牙槽骨内切取牙-牙槽骨的复合体，在受区预备相应的洞型后，植入牙-牙槽骨复合体；B组21例，采用常规牙移植方法，取出移植牙，制备植牙窝，植入供牙。2组正畸固定4~6周，术后2~12周选择性根管治疗，定期随访观察，对临床效果进行评价。结果 2组移植牙在牙冠色泽变化以及牙周膜影像等方面无统计学差异（P>0.05），在松动度、牙根吸收、根管治疗比率、牙槽骨吸收等方面有统计学差异（P<0.05），A组疗效优于B组。结论 牙-牙槽骨移植克服了传统牙移植的部分缺点，可作为牙列缺损的修复方法之一。.

Keywords: alveolar bone; dentition defect; surgical orthodontics; tooth transplantation.

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Figures

图 1
图 1. 改良外科正牙术牙移植X线影像
Fig 1 The X-ray of transplanted tooth by the method of modified surgical orthodontics A：术前牙片；B：术前全景片；C：术前CBCT颊侧面观；D：术前CBCT腭侧面观；E：术后1周；F：术后2周；G：术后4周；H：术后16周；I：术后45周。
图 2
图 2. 改良外科正牙术牙移植临床照相
Fig 2 The photograpy of transplanted tooth by the method of modified surgical orthodontics A：超声骨刀切取牙-牙槽骨；B：植入牙-牙槽骨；C：术后片段弓固定2周；D：术后4周拆除固定前；E：术后4周拆除固定；F：术后16周；G：术后45周颊侧面观；H：术后45周腭侧面观。
See this image and copyright information in PMC

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