Influence of remaining coronal tooth structure and fiber post location on the fracture resistance of restored endodontically treated maxillary premolars
10.3969/j.issn.1001-3733.2024.06.021
- VernacularTitle:牙体缺损类型与纤维桩位置对桩核冠修复上颌前磨牙抗折性能的影响
- Author:
Chunxia CHEN
1
;
Yadong ZHANG
;
Yan KE
;
Jing MI
;
Guifang YANG
;
Shaoqing SHI
;
Yongsheng WANG
Author Information
1. 300040,天津市口腔医院,南开大学附属口腔医院
- Keywords:
Remaining coronal tooth;
Fiber post;
Root canal therapy;
Fracture resistance
- From:
Journal of Practical Stomatology
2024;40(6):860-863
- CountryChina
- Language:Chinese
-
Abstract:
120 extracted maxillary first premolars were endodontically treated and randomly divided into 5 groups(n=24).The teeth in group A had 4 walls of coronal tooth structure,in group B,C,D and E had only 3 walls,missing the palatal,buccal,mesial and distal wall,respectively.The teeth in group A0-E0(n=6)were restored without post,in group A1-E1(n=6)with buccal post,in group A2-E2(n=6)with palatal post,in group A3-E3(n=6)with buccal and palatal post,respectively.The fracture resistance of group A was higher than that of B,C,D and E groups(P＜0.05).The fracture resistance of fiber posts placed in the buccal root canal was higher than that in the palatal root canal(P＜0.05).The 360° complete ferrule can provide the best fracture resistance,When the ferrule is not complete,it is recommended to place buccal fiber post for repair.
