安徽医科大学学报2024，Vol.59Issue(10)：1881-1885,5.DOI:10.19405/j.cnki.issn1000-1492.2024.10.027
改良垂直型牙体预备技术在后牙区全锆冠修复治疗效果评价
Evaluation of the effect of modified vertical tooth preparation technique in monolithic zirconium crowns restoration in posterior area
摘要
Abstract
Objective To evaluate the effect of modified vertical tooth preparation with full zirconium crown resto-ration in molar area.Methods A randomized study was conducted in 84 patients with all-ceramic crown restoration of posterior teeth.90 full crown restorations were collected and randomly divided into two groups:45 teeth in exper-imental group were treated with modified vertical tooth preparation,while 45 teeth in control group were treated with conventional horizontal tooth preparation with full zirconium crown restoration.When patients wore teeth,the resto-ration effects of the two groups were evaluated respectively,and then the marginal and internal fitness of the two groups were measured by silicone rubber replication method;gingival index(GI)and sulcus bleeding index(SBI)scores were recorded 6 months after wearing teeth.Results The results of chair-side evaluation of the two groups showed that the marginal fitness of the experimental group was better than that of the control group,and the differ-ence was statistically significant(P=0.036);the measured value of marginal fitness of prostheses in experimental group was better than that in control group,and the difference was statistically significant(P＜0.001);after 6 months,there was no mechanical complication between the two groups,and there was no significant difference in GI and SBI scores of periodontal soft tissue indexes.Conclusion Modified vertical tooth preparation abutment can significantly improve the marginal fitness of all-ceramic crown,which will not change the health status of peri-crown gingiva.关键词
后牙区/垂直型牙体预备/无肩台牙体预备/单层氧化锆冠/适合性Key words
posterior area/vertical tooth preparation/preparation of teeth without shoulder/monolithic zirconia crowns/suitability分类
医药卫生引用本文复制引用
许晓波,龚语林,沈丽丽,王冕,王玉婷,吴映燕..改良垂直型牙体预备技术在后牙区全锆冠修复治疗效果评价[J].安徽医科大学学报,2024,59(10):1881-1885,5.基金项目
安徽省卫生健康委科研项目(编号:AHWJ2021a041) （编号:AHWJ2021a041）
安徽医科大学校科研基金项目(编号:2021xkj249) Scientific Research Project of Anhui Health Commission(No.AHWJ2021a041) （编号:2021xkj249）
Scientific Re-search Project of Anhui Medical University(No.2021xkj249) （No.2021xkj249）
