THE EFFECT OF DIAMETER AND SURFACE TREATMENTS ON THE FRACTURE RESISTANCE OF NEW ESTHETIC POSTS

DR. JULIE GEORGE ALAPATT; DR. NOXY GEORGE MANJURAN; DR. JAINI J. L.; DR.T SREELAL.

Volume : VI, Issue : XI, November - 2017

THE EFFECT OF DIAMETER AND SURFACE TREATMENTS ON THE FRACTURE RESISTANCE OF NEW ESTHETIC POSTS

Dr. Julie George Alapatt, Dr. Noxy George Manjuran, Dr. Jaini J. L. , Dr. T Sreelal.

Abstract :

The effect of diameter and surface treatment on prefaicated zirconium dioxide (diameter 1.4mm and 1.7mm) and glass fiber-reinforced (diameter 1.3mm and 1.6mm) endodontic posts were studied. The Zr posts were divided into groups A, B, and C, based on the surface treatment. Group A, the control group was given no surface treatment, group B was airborne particle aaded using 110m alumina and group C roughened with a coarse grit diamond bur. FRC-posts without any surface treatment constituted Group D. The samples were tested for fracture resistance in an Instron Universal Testing Machine. One way ANOVA, small sample student t test, & Pearson correlation coefficient were the statistical tools employed to analyze the observations. Zirconium dioxide posts showed statistically significant higher fracture resistance when compared to glass FRC-posts. Surface treating the Zr posts with airborne particle aasion further significantly improved the fracture resistance.