不同修复方法对根管治疗牙修复后强度的影响  

The influence of different restorative methods on the strength of root canal treatment

作　　者：王蓓[1] 程子绪 徐星辉[1] 刘善忠[1] WANG Bei;CHENG Zixu;XU Xinghui;LIU Shanzhong(Department of Stomatology,Langfang People's Hospital,Langfang,Hebei,065000,China)

机构地区：[1]廊坊市人民医院口腔科,河北廊坊065000

出　　处：《当代医学》2022年第29期120-123,共4页Contemporary Medicine

摘　　要：目的探讨不同修复方法对根管治疗牙修复后强度的影响。方法选取2019年2月至2021年4月于本院牙科登记接受治疗后拔除的60颗人上中切牙,随机分为5组,每组12颗,采用不同的修复方案。A组为对照组,完整根管治疗牙齿,余下冠部牙本质4 mm;B组仅采用烤瓷熔附金属全冠修复,余下冠部牙本质4 mm;C组采用镍钛合金桩核材料联合烤瓷熔附金属全冠修复,余下冠部牙本质2 mm;D组镍钛合金桩核材料联合烤瓷熔附金属全冠修复,余下冠部牙本质0 mm;E组镍钛合金桩材料、复合树脂为核材料联合烤瓷熔附金属全冠修复,余下冠部牙本质2 mm。比较5组牙体修复后强度及牙折裂情况。结果A组、C组折裂强度高于B组、D组、E组,差异有统计学意义(P<0.05),C组折裂强度最高,B组折裂强度相对较低,D组、E组折裂强度比较差异无统计学意义。C组、D组、E组均未出现桩断裂情况。结论选择镍钛合金进行牙体修复并保留完整的牙体组织,可有效保障治疗修复强度,满足患者后期使用需要。Objective To investigate the influence of different repair methods on the strength of root canal treatment.Methods From February 2019 to April 2021,60 middle upper incisor teeth were extracted from the dental register of our hospital after treatment.They were randomly divided into 5 groups,with 12 teeth in each group,they were treated with different repair regimens.Group A is a control group with complete root canal treatment teeth 4mm;Group B only adopts porcelain fused metal crown repair,the remaining crown dentin 4mm;Group C adopts nickel titanium pile core material combined with porcelain fused metal crown repair,the remaining crown dentin 2 mm;Group D nickel titanium pile core material combined with porcelain fused metal crown repair,the remaining crown dentine 0mm;Group E nickel titanium pile material and composite resin are nuclear material combined with porcelain fused metal crown repair,and the remaining crown dentin 2 mm.The postrestorative strength and experimental fracture were compared in 5 groups.Results The fracture strength of group A and group C was higher than group B,group D and group E,and the difference was statistically significant(P<0.05),the highest in group C,relatively low in group B,and no significant difference between group D and group E.No pile fracture occurred in group C,group D and group E.Conclusion Choosing nickel-titanium alloy for dental restoration and retaining the intact dental tissue can effectively guarantee the restoration strength of treatment and meet the later use needs of patients.

关 键 词：冠修复 根管治疗 修复强度 影响评价 

分 类 号：R781.3[医药卫生—口腔医学]