Year : 2021

Volume : Volume 12

Issue : Issue 1

Address for correspondence :
Dr. Divya Rajesh Mehta
divrajjag@gmail.com

Abstract

Background:  Making an accurate dental impression is one of the most crucial and time-consuming procedures in dental practice. During this procedure, it is pivotal to ensure the restriction of the intraoral condition as exactly as possible, as inexactness or inexactitudes could have far-reaching effects on the quality of restoration. The aim of the study was to estimate and compare correctness of conventional and digital impressions in terms of precision & trueness.  Materials and Methods: 40 samples were divided into 4 groups having 10 samples each. API Typhodent mandibular first molar model was taken as master model. Metal-ceramic tooth preparation was done according to the clinical preparation principles. Four points namely POINT A, POINT B, POINT C & POINT D were marked as reference points. The mean of bucco-lingual (POINT A - POINT B) & mesio-distal (POINT C - POINT D) width respectively were measured.  Results: The findings of the present study revealed that digital intraoral scanners Shining 3D were more accurate in recording the tooth surface as compared to the conventional impression materials Polyvinyl Siloxane and Polyether. Conclusion: The results and statistical analysis of this study showed that Shinning 3D intraoral scanner showed higher precision and trueness values followed by polyether impression material and polyvinyl siloxane impression material.

Keywords: Precision, Prepared Single Tooth, Polyvinyl Siloxane, Polyether Impression.