|
KMID : 0988720050210020133
|
|
Journal of the Korean Academy of Stomatognathic Function and occlusion
2005 Volume.21 No. 2 p.133 ~ p.142
|
|
|
The Effect of Restorative Method on Fracture Strength and Fracture Pattern in Endodontically Treated Teeth
|
|
Shin Soo-Yeon
Cho In-Ho
|
|
|
Abstract
|
|
|
|
The purpose of this study was to evaluate interaction of restorative method according to amount of remaining clinical crown length. For the study, sixty healthy mandibular premolars with no dental caries were chosen. Specimens with clinical crown length of 1 mm, 2 mm, 3 mm above the cemento-enamel junction(CEJ) were prepared and root canal treatment was conducted using Ni-Ti rotaty files. Thirty specimens were restored with LuxaCoreⓡ and thirty were restored with casting posts. All specimens were restored with full coverage crowns and the fracture strength was teseted with the MTS universal testing marchine. The fracture pattern was observed by measuring the distance between CEJ and fracture line. From the results above, the fracture strength seems to be influenced more by amount of remaining clinical crown length than restorative method. Good prognosis could be expected, when more than 2mm of clinical crown length is retained. In the future, the further studies on restorative method, to increase fracture strength of teeth will be necessary.
|
|
|
KEYWORD
|
|
|
clinical crown length, casting post, fracture strength
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|