3种材质插销式嵌体冠对短冠磨牙的修复效果比较  

A comparison of three types of insertion-type separate inlay crowns in the restoration of short coronal molars

作　　者：李军如[1] 张彩乔 于静[1] LI Junru ZHANG Caiqiao YU Jing(Department of Stomatology, The Second Hospital of Shijiazhuang, Shijiazhuang 050051, China)

机构地区：[1]石家庄市第二医院口腔科,石家庄050051

出　　处：《空军医学杂志》2017年第3期196-199,共4页Medical Journal of Air Force

基　　金：河北省医学科学研究重点课题计划(20110184)

摘　　要：目的比较贵金属、聚合瓷、氧化锆3种插销式嵌体冠对短冠磨牙的修复效果,为短冠磨牙缺损修复材料的选择提供依据。方法选取2014年1月—2015年9月治疗的93例共132颗牙体缺损短冠磨牙随机分为3组,每组31例,均进行完善的根管、牙周治疗及牙体、根管预备,分别采用氧化锆插销桩与贵金属嵌体冠、Geramage聚合瓷嵌体冠、二氧化锆嵌体冠结合成一体的插销式嵌体冠对短冠磨牙进行修复治疗,每6个月随访1次,采用USPHS标准评价修复效果。结果 3组修复6个月后修复体形态、边缘着色、边缘密合、基牙继发龋、表面质地合格率比较差异无统计学意义(P>0.05);修复12个月后氧化锆组、聚合瓷组修复体形态、表面质地合格率高于贵金属组(P<0.05),贵金属组、氧化锆组边缘密合、边缘着色合格率高于聚合瓷组(P<0.05);聚合瓷组修复后无患牙发生根牙折,根牙折发生率低于贵金属组及氧化锆组(P<0.05);贵金属组牙龈反应和牙龈缘红肿发生率高于聚合瓷组及氧化锆组(P<0.05)。贵金属组及氧化锆组并发症总发生率高于聚合瓷组(P<0.05)。结论插销式嵌体冠可以作为短冠磨牙的有效修复方法,3种材质制作嵌体冠各有优劣,临床应综合患者需求及实际特点选择适宜的嵌体冠材质。Objective To compare three types of insertion-type separate inlay crowns-precious metal, polymerize procelian and zirconium oxide-in the restoration of short coronal molars so as to provide reference for material selection in the restoration of short coronal molars. Methods Ninety-three patients with short coronal molars （132 teeth） treated between January 2014 and September 2015 were randomly divided into three groups, with thirty-one cases in each group. All these patients underwent RCT, dental and periodontal treatment. Zirconium oxide bold piles were respectively integrated with precious metal inlay-crowns, Geramage polymerized porcelain inlay-crowns, and zirconium oxide crowns to restore short coronal molars. There was a follow-up survey every six months. USPHS criteria were used to evaluate the effect of restoration. Results Six months after restoration, the qualification rate of prosthesis morphology, marginal discoloration, marginal integrity, secondary caries, and surface texture was not statistically significant between the three groups （P〉0.05）. Twelve months after restoration, the qualification rates of prosthesis morphology and surface texture in the zirconium oxide group and in the polymerized porcelain group were higher than in the precious metal group （P〈0.05）. The qualification rates of marginal integrity and marginal discoloration in the precious metal group and in the zirconium oxide group were higher than in the polymerized porcelain group （P〈0.05）. The incidence of root fracture in the polymerized porcelain group was lower than that in the other two groups （P〈0.05）. The incidence of gingival reaction and gingival swelling in the precious metal group was higher than in the other two groups （P〈0.05）. The rate of complications in the precious metal group and zirconium oxide group was higher than in the polymerized porcelain group （P〈0.05）. Conclusion The insertion-type separate inlay crowns can be an effective method for restoring short coronal molars. The

关 键 词：短冠磨牙 嵌体 插销桩 贵金属 聚合瓷 氧化锆 

分 类 号：R783[医药卫生—口腔医学]