牙槽骨严重吸收的患者应用环状植骨结合牙种植技术治疗的可行性分析

Feasibility analysis of annular implant technique in treatment of patients with severe alveolar bone resorption

目的分析环状植骨结合牙种植术治疗牙槽骨严重吸收患者的可行性。方法对我院收治的23例牙槽骨严重吸收患者采用环状植骨结合牙种植术治疗,记录患者骨环成活率、种植体存留率,测量患者术前及术后5个月牙槽骨骨量,比较牙龈相关指标变化情况。结果 23例患者共植入种植体23颗,其中1例患者因骨环感染暴露被取出,骨环成活率95.7%,种植体存留率100%;患者种植牙位骨高度增加量(6.35±2.17)mm,骨吸收量(2.29±1.73)mm,种植体颈部唇舌向牙槽骨宽度(7.11±0.68)mm,种植体植入后唇侧和舌侧骨吸收量差异无统计学意义(P>0.05);种植牙和邻牙的PD值,差异无统计学意义(P>0.05),患者术前、冠修复时及冠修复后5个月近中、远中牙龈乳头分级差异均具有统计学意义(P<0.01)患者供骨区切口均一期愈合,2例患者术后颏部有一定程度感觉麻木,1个月后自行消失,1例患者因骨环感染暴露造成植骨失败。结论环状植骨结合牙种植技术治疗牙槽骨严重吸收的患者术后骨吸收少,种植体稳定性高,美学形态改善佳。

Objective To analyze the feasibility of annular implant technique in treatment of patients with severe alveolar bone resorption. Methods 23 cases of patients with severe alveolar bone resorption cured in our hospital were treated with ring bone graft combined with dental implantation.Survival rate of bone ring and retention rate of implant of the patients were recorded.The preoperative and postoperative 5 crescent slot bone of the patients were measured.Gingival index changes were compared. Results 23 patients were implanted with implant of 23,among them,1 eases were removed because of bone ring infection,the survival rate of bone ring was 95.7%,and the rate of implant retention was about 100%.Implant bone height increased （6.35 ±2.17）mm.Bone resorption was （2.29 ±1.73）mm. The neck of implant labial lingual alveolar bone width was（7.11 ±0.68）mm.There was no significant difference in the amount of labial and lingual bone resorption after implant implantation（P 〉 0.05）.There was no significant difference in PD value between dental implants and adjacent teeth（P 〉 0.05）.The gingival papilla grade differences heft）re surgery,the restoration and repair of 5 months after the mesial and distal were statistically significant（P 〈 0.01）. The honor site incision were nered on first flnase.The drich disappeared their own after one month. 1 cases of bone graft was failure due to bone ring infection. Conclusion Annular implant technique in treatment of patients with severe alveolar bone resorption has less bone resorption after operation,high stability of implants and belier aesthetic form improvement.