13th World Congress for Laser Dentistry

26-28, April 2012

Barcelona, Spain

Meeting Abstract

Sponsors: World Federation for Laser Dentistry

-  Poster 51

TITLE: Correlation between surface roughness measurement and Diagnodent values of methylene blue painted RMGI samples.

AUTHORS: Pouralibaba F, Fekrazad R, Pakde F, Samii M, Rikhtegaran S.

Laser department of Tabriz dental faculty

SOURCE: Med Oral Patol Oral Cir Bucal. 2012 May 1;17(Supplement1):S199.

* doi:10.4317/medoral.17643699

http://dx.doi.org/10.4317/medoral.17643699

Abstract

Introduction: RMGI (resin modified glass inomer) as a restorative dental material is being used in patients with high caries risk. Clinical situations may necessitate a surface smoothening or roughening procedure (polishing, repairs).A clinical scale for such surface modification would be a useful value.

Aim of the study: Using Diagnodent values of methyle-ne blue painted RMGI samples as a scale for surface roughness measurement

Materials and methods: 80 RMGI samples divided in 4 groups. In three groups surface of samples were treated by using composite disks with different colors. In 4th group samples treated by a diamond bur. After surface roughness measurement by Profilometer, samples immersed in methylene blue solution and Diagnodent va-lues were recorded.

Conclusion: Diagnodent values and Roughness values recorded by profilometer were significantly different (P <0.05) between groups of study.there was a direct relation between Dvalues and roughness measurements in each group of this study.