COMPARATIVE EVALUATION OF DENTINAL MICROCRACK FORMATION DURING ROOT CANAL PREPARATION USING HAND 'k' FILES AND THREE DIFFERENT NiTi ROTARY SYSTEMS: AN IN VITRO STUDY

Dr Channesh Patel G S; Dr Deepu Patil; Dr Veeresh Tegginmani; Dr Nisar Ahmed; Dr Zubair Ahmed; Dr Zeenath Ambareen

Volume : VIII, Issue : XII, December - 2019

COMPARATIVE EVALUATION OF DENTINAL MICROCRACK FORMATION DURING ROOT CANAL PREPARATION USING HAND 'k' FILES AND THREE DIFFERENT NiTi ROTARY SYSTEMS: AN IN VITRO STUDY

Dr Channesh Patel G S, Dr Deepu Patil, Dr Veeresh Tegginmani, Dr Nisar Ahmed, Dr Zubair Ahmed, Dr Zeenath Ambareen

Abstract :

Aim:To evaluate and compare the amount of dentinal defects (microcracks) formed during the canal preparation using hand stainless steel �K� files and Mtwo, Hyflex CM and K3XF, NiTi rotary files. Materials and methodology:100 extracted teeth were randomly divided into 5 equalgroups and canals were prepared in the following manner, GROUP 1– Control group – Canals unprepared, GROUP 2– Hand Files, GROUP 3– Mtwo Files, GROUP 4– HYFLEX CM Files, and GROUP 5– K3XF and all roots were cut horizontally at 3, 6, and 9 mm from the apex and were viewed under stereomicroscope, each specimen was checked for the presence of dentinal defects. Results and Conclusion:Maximum defects were found in Mtwo rotary system group followed by K3Xf and Hyflex CM groups, the control and the handfiles group did not show any defect. All the three experimental rotary systems caused dentinal microcracks.