Remaining dentine thickness of root canals prepared with K-3 and proTaper rotary systems

Objective: to compare the remaining dentine thickness of root canals prepared with k-3 and protaper files. methods: this in-vitro experimental study was conducted from 1st april-30th september 2015 at the dental clinics of aga khan university hospital,karachi,and comprised human teeth. extracted human premolars and molars were included in the study using non-probability consecutive sampling. canals were randomly allocated into two groups i.e. k-3 and protaper. changes in inner and outer walls of canals were measured using vixwin software at 1mm,4mm,7mm and 10mm from the apex. spss 20 was used for data analysis. results: of the 214 canals,107(50%) were assigned to each group. no statistically significant difference was found in the remaining dentine thickness at 1mm,4mm,7mm and 10mm from the apex of the teeth prepared with in k-3 versus protapers system (p>0.05). conclusion: the remaining dentine thickness of the root canals prepared with k-3 files was similar to that of canals prepared with protaper files. © 2017,pakistan medical association. all rights reserved.