The comparison of retention of diferent post and core systems / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 133-135, 2007.
Article
in Chinese
| WPRIM
| ID: wpr-331380
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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Polyurethanes
/
Tensile Strength
/
Acrylic Resins
/
Chemistry
/
Post and Core Technique
/
Cementation
/
Dental Prosthesis Retention
/
Composite Resins
/
Crowns
/
Dental Materials
Limits:
Humans
Language:
Chinese
Journal:
Journal of Biomedical Engineering
Year:
2007
Type:
Article
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