纤维桩树脂核冠修复上颌前磨牙缺损临床效果及抗折性能研究  

Clinical effect and fracture resistance of nickel-chromium metal casting post-core crown in repair of maxillary premolar defects

作　　者：王雪 安民 WANG Xue;AN Min(Department of Stomatology,the First People’s Hospital of Xianyang,Xianyang 712000,China)

机构地区：[1]咸阳市第一人民医院口腔科,陕西咸阳712000

出　　处：《陕西医学杂志》2023年第2期180-183,共4页Shaanxi Medical Journal

基　　金：陕西省咸阳市重点研发计划项目(2019K02-115)。

摘　　要：目的:比较镍铬金属铸造桩核冠和纤维桩树脂核冠修复上颌前磨牙缺损的临床效果和抗折性能。方法:选取上颌前磨牙缺损患者86例,共计86颗上颌前磨牙,随机分为纤维桩树脂核组(纤维桩树脂核冠修复)和铸造金属核组(镍铬金属铸造桩核冠修复),每组43例。比较两组患者修复成功率、美国公共健康部制定的充填体评定系统(USPHS)各指标分级满意度、修复前后牙周相关生化指标以及牙体抗折性能。结果:纤维桩树脂核组修复成功率显著高于铸造金属核组(93.01%与74.42%,P<0.05)。两组患者修复后USPHS各项指标满意度比较无统计学差异(均P>0.05)。修复前,两组患者龈沟出血指数、菌斑指数、探诊深度以及龈沟中AST和ALP含量比较均无统计学差异(均P>0.05);修复后,纤维桩树脂核组患者龈沟出血指数、菌斑指数、探诊深度以及龈沟中AST和ALP含量均低于铸造金属核组(均P<0.05);铸造金属核组患者修复后牙体最大压缩载荷和断面最低点至釉牙骨质界距离均显著低于纤维桩树脂组患者(均P<0.05)。结论:纤维桩树脂核冠修复上颌前磨牙缺损在修复成功率、修复后满意度和牙周以及修复后牙体的抗折性能均优于镍铬金属铸造核冠修复。Objective:To compare the clinical effect and fracture resistance of nickel-chromium metal casting post-core crown and fiber post resin-core crown in the restoration of maxillary premolar defects.Methods:A total of 86 patients with maxillary premolar defects(86 maxillar premolars)were divided into fiber post resin core group(fiber post resin-core crown repair)and cast metal core group(nickel-chromium metal casting post-core crown repair),43 cases in each group.The restoration success rate,the satisfaction of each index in USPHS,the periodontal-related biochemical indicators before and after restoration,and the tooth fracture resistance were compared between two groups.Results:The repair success rate of the fiber post resin core group was significantly higher than that of the cast metal core group(93.01%vs 74.42%,P<0.05).There was no significant difference in the satisfaction of each index in USPHS between two groups after repair(all P>0.05).Before repair,there were no significant differences in the gingival sulcus bleeding index,plaque index,probing depth,and AST and ALP contents in the gingival sulcus between two groups(all P>0.05).After repair,the gingival sulcus bleeding index,plaque index,probing depth,and AST and ALP contents in the gingival sulcus in the fiber post resin core group were lower than those in the cast metal core group(all P<0.05).In addition,the maximum compressive load and the distance from the lowest point of the section to the cementoenamel boundary in the cast metal core group were significantly higher than those in the fiber post resin group(all P<0.05).Conclusion:The restoration of maxillary premolar defects with fiber post resin-core crown was superior to that of nickel-chromium metal casting post-core crown in restoration success rate,post-restoration satisfaction,periodontal,and post-restoration tooth fracture resistance.

关 键 词：镍铬金属铸造桩核 上颌前磨牙 抗折性 牙周 纤维桩树脂核 

分 类 号：R783.3[医药卫生—口腔医学]