The comparison of retention of diferent post and core systems.
- Author:
Nianbin WANG
1
;
Xinmin CHEN
;
Tao HE
;
Yan YANG
;
Guiju ZHANG
;
Xiaohong WU
;
Pingping LI
;
Lin NIU
Author Information
1. Chongqing Beibei TCM Hospital, Chongqing 400700, China.
- Publication Type:Journal Article
- MeSH:
Acrylic Resins;
Cementation;
Composite Resins;
Crowns;
Dental Materials;
chemistry;
Dental Prosthesis Retention;
Dental Stress Analysis;
Humans;
Polyurethanes;
Post and Core Technique;
Tensile Strength
- From:
Journal of Biomedical Engineering
2007;24(1):133-135
- CountryChina
- Language:Chinese
-
Abstract:
To study the effects of different post design on retention. 27 simulated tooth roots made of PMMA were divided into three groups, then manufactured the cement-expanded composite screw post-core system (CECSP), cement screw post-core system (CSP) and cast metal post-core system (CMP). The root and post-core system was tensiled by the speed of 10 mm/min on the Instron 4302 and recorded the retention force. It appeared significantly different between retention force of CECSP and CSP and CAM (P < 0.05). As a result, the retention mechanical properties of CECSP was much better than those of cement screw post-core system and cast metal post-core system. Therefore, it is possible to find a new way for restoration of endodontically treated teeth.
