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J Conserv Dent. 2019 Jan-Feb;22(1):87-91. doi: 10.4103/JCD.JCD_181_18.

An in vitro comparative evaluation of commonly consumed catechu and catechu with lime on surface roughness and color stability of the conventional nano-hybrid composite.

Author information

1
Department of Conservative Dentistry and Endodontics, K. M. Shah Dental College, Sumandeep Vidyapeeth, Vadodara, Gujarat, India.

Abstract

Aim:

Comparative evaluation of commonly consumed catechu and catechu with lime on surface roughness and color stability of the conventional nano-hybrid composite.

Methodology:

A total of 50 uniform cylindrical disks of 10-mm diameter and 2-mm thickness prepared from the nano-hybrid composite were used in the study. Each sample was randomly divided into three subgroups of 20 samples each in two experimental groups (catechu, catechu, and lime) and 10 samples in the control group (artificial saliva). The samples were immersed in each agent for 15 days. Surface roughness and color changes measurements were noted at the baseline and 15th day by two-dimensional profilometer and spectrophotometer, respectively.

Results:

It was found that nano-hybrid composite resin showed more surface roughness and color change when immersed in catechu and catechu with lime as compared to the control group. Intergroup comparison showed statistical significant increase in surface roughness and color change in the catechu group followed by the catechu with the lime group and artificial saliva.

Conclusion:

Within the limits of the present study, it can be concluded that all experimental specimens showed discoloration. At the end of 15th day, among the groups, catechu showed more surface roughness and color change followed by the catechu and lime and the control group.

KEYWORDS:

Catechu; lime; nano-hybrid composite; profilometer; spectrophotometer

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