改良翻瓣即刻种植有利于上颌前牙区的软硬组织重建  

A modified flap immediate implant is beneficial to soft tissue reconstruction in maxillary aesthetic area

作　　者：张宾[1] 孙丽华[1] 张俊花[1] 刘玉三[1] 崔彩云 Zhang Bin;Sun Lihua;Zhang Junhua;Liu Yusan;Cui Caiyun(Binzhou Medical University Hospital,Binzhou 256600,Shandong Province,China)

机构地区：[1]滨州医学院附属医院,山东省滨州市256600

出　　处：《中国组织工程研究》2021年第5期707-712,共6页Chinese Journal of Tissue Engineering Research

基　　金：山东省自然科学基金(ZR2019PH083),项目负责人:崔彩云。

摘　　要：背景:有研究表明常规翻瓣引导骨组织再生术是上前牙即刻种植中应用较多的方法,在骨缺损较小时是一种较理想的方法,但该术式在颈部难以获得较好的成骨效果。目的:评价上前牙改良翻瓣即刻种植的临床应用效果。方法:临床选择上颌前牙即刻种植患者60例随机分为2组,改良翻瓣组30例采用旋入适合高度及直径的愈合基台后行埋入式愈合,常规翻瓣组30例采用旋入覆盖螺丝后行埋入式愈合,术后6个月制取数字化印模行全瓷冠修复。随访2年,比较两组种植体存留率、红色美学指数评分、牙龈增长值和种植体唇侧骨吸收的变化。结果与结论:①两组种植体存留率均为100%;②与常规翻瓣组比较,改良翻瓣组红色美学指数评分及牙龈缘增长显著升高(P<0.05),唇侧骨厚度显著降低(P<0.05);③改良翻瓣组种植体周围牙龈近远中增长值略高于常规翻瓣组,但差异无显著性意义(P>0.05);④结果证实,改良翻瓣即刻种植有利于上颌前牙区的软硬组织重建效果。BACKGROUND:Studies have shown that conventional flap-guided bone tissue regeneration is a method commonly used in the immediate implantation of the upper anterior teeth.It is an ideal method for repairing small bone defects,but it is difficult to achieve favorable osteogenesis effect in the tooth neck area.OBJECTIVE:To evaluate the clinical effects of modified flap immediate implant in maxillary aesthetic area.METHODS:Sixty cases of immediate implant placement were investigated,and randomized into two groups:30 received modified flap immediate implant in which a gingiva former with suitable size was screwed followed by buried healing(experiment group)and 30 received traditional flap immediate implant in which a cover screw was screwed followed by buried healing(control group).They were impressed digitally and restored with all-ceramic crown 6 months after the surgery.Implant retention rate,pink esthetic scores,gingival growth and labial bone absorption were detected and compared between two groups.RESULTS AND CONCLUSION:The implant retention rates of both groups were 100%.Compared with the control group,the pink esthetic score and gingival growth were significantly increased in the experimental group(P<0.05),and the labial bone thickness was significantly decreased(P<0.05).The proximal,distal or mesial gingiva growth was increased a bit in the experimental group compared with the control group,but there was no significant difference between the two groups(P>0.05).To conclude,the modified flap immediate implant is conducive to soft tissue reconstruction in maxillary aesthetic area.

关 键 词：骨 牙 种植 骨缺损 材料 种植体 牙龈 上颌 

分 类 号：R459.9[医药卫生—治疗学] R318[医药卫生—临床医学]