Effects of different resin core materials on microleakage for post-core restorations

VernacularTitle:不同树脂材料对纤维树脂桩核修复微渗漏的影响
Author: Lijie TANG ; Guilan ZHANG ; Zhimin ZHU
Keywords: fiber-reinforced composite post; post-core; microleakage
From: Journal of Xi'an Jiaotong University(Medical Sciences) 2017;38(4):584-586,605
CountryChina
Language:Chinese
Abstract: Objective To compare the effects of different composite resins as core material on the degree of microleakage in post-core repairation.Methods A total of 46 recently extracted single-rooted mandibular premolars were distributed into different groups according to different core material including ParaCore,AP-X and Ceramage.Then we used direct or indirect forming method to make post-core restorations.All of the specimens were submerged in dyes.Then,they were demineralized,dehydrated and processed to be transparent.The extent of the dye leakage was examined under a stereomicroscope.Results The microleakage value was significantly higher in Group of direct-mold-cement with ParaCore (4.94± 1.71)mm than in Group of indirect-mold-secondary-cement with ParaCore (0.91 ± 0.33) mm,Group of indirect-mold-secondary-cement with AP-X (0.87 ± 0.27) mm,and Group of indirect-mold-secondary-cement with Ceramage (1.02 ± 0.34)mm.Conclusion Different methods of building and cementing FRC post-core restorations,but not different composite resins as core material,have significant effects on the extent of microleakage in post-core repair.