Comparison of dimensional accuracy of various interocclusal recording materials: An in vitro study

Abstract

Dimensional stability of commonly used interocclusal records is a significant factor for precise articulation of patient's diagnostic and working casts in the fabrication of well fitting prosthesis with satisfactory occlusion. The aim of this study was to measure the dimensional accuracy of modeli g wax, aluwax, addition silicone and modeling wax corrected with zinc oxide eugenol. Total of 80 samples were fabricated. The dimensional accuracy of these materials was tested in three planes i.e. anteroposteriorly, mediolaterally and vertically. The dimensional accuracy in horizontal plane was measured with travelling micro cope and in vertical plane with digital vernier caliper. The values obtained were stati tically analysed y A OVA and Tukey HSD-Honestly significa t difference. olyvi ylsiloxane was observed to be the most dimensionally accurate material and modeli g wax, the least accurate material of all the materials tested.