根管治疗对椭圆形根管牙根抗折性的影响

Abstract

Abstract: Vertical root fracture often occurs in the teeth after RCT（root canal therapy）, and it is more common in the oval-shaped root canals. The fracture resistance of teeth can be changed by many steps of RCT, especially root canal preparation and obturation. The stress introduced and the microcracks produced during the treatment play a decisive role in the subsequent root fracture. In addition to the morphological characteristics between the oval root canal and the circular root canal, their respective responses to RCT result in a large difference in the fracture resistance of teeth. At present, the studies about the changes in the root fracture resistance of teeth with oval root canals after RCT have not been reported. In order to improve the success rate and the prognosis of root canal treatment, it is important to understand the effect of RCT on the resistance of root with oval canals. This article will make a summary in this field.

Key words: oval-shaped root canals, preparation, obturation, fracture resistance, vertical fracture

References 40

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The effect of root canal treatment on the resistance of root with oval canals

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