Fracture load and fracture modes of prefabricated fiber post restoration in different tilted mandible premolars:A pilot study

VernacularTitle:预成纤维桩应用于冠改向修复的初步研究
Author: Yongfu HOU ; Zhimin ZHU
Publication Type:Journal Article
Keywords: Fiber post; Fracture load; Tilted teeth
From: Journal of Practical Stomatology 2016;32(3):430-431
CountryChina
Language:Chinese
Abstract: 80 extracted human mandible premolars were divided into 10 groups(n =8)based on the post with different tilted angles(0°, buccal 15°and 30°,ligual 15°and 30°).The samples in experiment group were restored with fiber post while in the control group with cast post.Then all the teeth were restored with cast crown and bonded by glass ionomer.Compressive load with the speed of 1.0 mm/min was ap-plied to the restored teeth with a universal material testing machine until failure and the fracture modes were observed.The fracture load of fi-ber post and cast post restoration with the same tilted angles was similar(P >0.05).The main fracture mode of the teeth in all groups was unfavorable tooth fracture.No significant interaction was observed(P =0.217)between the 2 kinds of post and angulation of tilted teeth.