Year : 2019

Volume : Volume 10

Issue : Issue 1s

Address for correspondence :
Dr. Anu Bhat.
anubhat@gmail.com

Abstract

Background:  Dental caries continues to affect a significant portion of the world population and treatment of the decay is associated with pain by many patients. Intervention and application of rotary instruments for treatment of carious lesions has often resulted in considerable removal of tooth structure. Aim: The aim of the study is to evaluate and compare the microhardness of remaining dentin after caries removal using smart burs and conventional diamond burs.  Materials and Methods: 40 freshly extracted carious human  molars were selected for this study. Each tooth was cut into mesiodistal direction with the help of diamond disc using micromotor and hence two similar sections were obtained from each tooth Thus giving us 80 carious samples from 40 carious teeth. These were randomly divided into 2 groups of 40 samples each. Group 1- The carious portion of these samples was excavated with the help of polymer bur Smartprep (SS White). Group 2-The carious portion of these samples was excavated with the help of Diamond points (No. 018).The surface of microhardness of remaining dentin of all the samples of both the groups was measured by Vickers Microhardness Tester. Data were analyzed with Independent T-Test (P = 1.000). Statistical Analysis Used: Independent  test was used in this study  Results: The mean scores of microhardness of remaining dentin removal by Diamond burs (group A) and Smart burs (group B) was found to be statistically insignificant  Conclusion: Smart bur and conventional bur was found to be comparable. Thus smart burs can be a  hassel free alternative method for caries removal.

Keywords: Microhardness, Conventional Bur, Smart Bur, Residual dentin thickness.