引导骨再生技术在上前牙种植修复中的效果

Guided bone regeneration technology used in upper anterior tooth restoration

背景:膜引导骨再生技术是利用膜的机械屏障原理,阻挡软组织长入种植体周骨缺损,使成骨细胞在膜下空间中优势生长,形成新骨充填骨缺损。目的:于上前牙种植中应用引导骨再生技术,观察其对修复效果的影响。方法:74例单颗前牙种植成功患者按照随机数字表法分组为对照组与观察组,各37例。对照组采用上前牙二期种植,但未行骨增量;观察组采用引导骨再生技术实施上前牙种植,待其种植体初期稳定后植入人工骨粉。于术后当天、种植牙负重6个月、12个月比较2组患者软组织红色美学指数及种植体周围骨水平。结果与结论:2组患者种植牙负重6,12个月红色美学指数值较基线水平比较均明显提高(P<0.05),但2组间比较差异无显著性意义(P>0.05)。种植牙负重12个月时,除唇侧龈缘水平和牙槽突外形外,2组患者红色美学指数其余各项指数值较基线水平均明显升高(P<0.05);但2组间红色美学指数各项指数值比较(P>0.05)。种植牙负重12个月时,2组患者种植体边缘骨水平值比较差异无显著性意义(P>0.05)。结果说明相比正常骨组织种植修复来说,临床应用引导骨再生技术于上前牙种植中修复可取得较好效果,且两者修复效果无明显差异性。

BACKGROUND：The membrane guided bone regeneration technique is based on the mechanical barrier theory of the membrane, which blocks the soft tissue ingrowth into the peri-implant bone defects that make osteoblasts grow wel in the space under the membrane to form new bone and fil bone defects. OBJECTIVE：To observe the clinical aesthetic effect of guided bone regeneration technique on anterior tooth implantation. METHODS：Seventy-four patients with successful single dental implantation were divided into control group and observation group at random, with 37 cases in each group. The control group was treated with phase II anterior tooth implantation with no bone increment. The observation group was treated with anterior tooth implantation implemented by the guided bone regeneration technology, and then bone meal was implanted at initial stable stage after dental implantation. Pink aesthetic indexes and peri-implant bone levels were compared between the two groups on the day after surgery, at 6 and 12 months after implant loading. RESULTS AND CONCLUSION：In both groups, the pink aesthetic indexes were significantly increased at 6 and 12 months after implant loading compared with the baseline levels （P〈0.05）, but there was no difference between the two groups （P〉0.05）. At 12 months after implant loading, in addition to the labial gingival margin levels and alveolar appearance, the rest pink aesthetic indexes were al increased significantly in the two groups compared with the baseline levels （P〈0.05）, but there was no difference between the two groups （P〉0.05）;there was also no difference in the marginal bone loss between the two groups （P〉0.05）. Compared to normal bone implant restoration, the clinical application of guided bone regeneration technique in upper anterior tooth restoration can achieve better results, but there is no significant difference between the two restoration methods. therefore further research and analysis.