EFFECT OF THREE GUTTAPERCHA SOLVENTS ON MICROHARDNESS OF HUMAN ROOT DENTINE - AN INVITRO STUDY

*Dr. P. Nihar MDS, Dr. Mohankumar Reddy S. MDS, Dr. Pragnya MDS, Dr. K. S. Chandra Babu MDS, Dr. Cidda Sindhuja, Dr. Shravani Reddy S.

ABSTRACT

Aim: The purpose of this study is to compare the microhardness of human root dentine after the appilication of three gutta-percha solvents. Methodology: 45 Extracted human maxillary anterior teeth were sectioned longitudinally and embedded in acrylic resin blocks and are then polished and were treated with Xylene, Orange oil, Turpentine oil for 5 and 10 minutes. After each treatment period, the specimens were rinsed, dried, and prepared for Vicker's micro hardness analysis. Vicker's micro hardness values for each specimen were recorded before and after treatment, and the differences were statistically compared. Results: Statistically significant difference was found in solvent-treated groups & decrease in microhardness values is directly propotional to the exposure time. Conclusion: This study showed that among the experimental solvents, turpentine oil shows less effect on microhardness of human root dentine.

Keywords: Xylene, Orangeoil, Turpentine Oil, Root Dentine, Micro Hardness.