A comparative analysis into occlusal morphology developed from cad created anatomy to hand layered anatomy

Abstract

The aim of the study is to assess the occlusal contacts between the two different types of prosthetics and comparison of occlusal morphology of CAD created and hand layered anatomy crown. A total of 960 case sheets were reviewed. Out of this 200 patients were selected randomly who had fixed dental prosthesis treatment. The study was done in saveetha dental college and hospitals. We reviewed patients records and analysed the data of 86000 patients between June 2019 and March 2020. Approval of the ethical committee was taken before the start of the study. Excel tabulation is done. Data was analysed by SPSS statistics software. Chisquare statistics test is done. P valve was set as 0.05 as a level of significance. Then management and outcome were analysed. Data search of fixed prosthesis led to 960 patients of which 200 patients were randomly selected based on inclusion criteria. Occlusal morphology is assessed for CAD created anatomy to hand layered anatomy of the crown. Incidence of monolithic crown in the posterior region(30%) and hand layered zirconia (35%) is most commonly seen in the anterior region. Monolithic crown(55.8%) is a most commonly used type of crown in fixed dental prosthesis. Our study shows, monolithic crown is most commonly used in the posterior region and hand layered zirconia is used in anterior surface. Cuspal anatomy/incsal anatomy as well as over contoured/ encountered anatomy is well defined in monolithic crown.