Nd:YAG Laser enhance dental enamel resistance to demineralization preventing dental caries

Zinah Salahuddin Shakir; Amera K Alkaisi

Volume : VIII, Issue : VII, July - 2019

Nd:YAG Laser enhance dental enamel resistance to demineralization preventing dental caries

Zinah Salahuddin Shakir, Amera K Alkaisi

Abstract :

Lasers has been used as an alternative to fluoride to improve dental enamel properties in order to enhance its resistance to demineralization, as laser change its morphology by melting and re-crystallizing process. The main objective is to test the effectiveness of laser treatment using pulsed Nd-YAG 1064 nm wavelength on acid resistance of human enamel in vitro. Materials and Methods: Ten human caries free teeth, extracted for orthodontic and periodontal reasons were used in this study. Q-switched Nd:YAG laser Eighteen sectioned teeth samples were divided into six groups, each was treated by different laser energy fluency. Micro-hardness, Surface roughness, Ca/P ratio after determination, Demineralization and Remineralization tests were performed. The results showed, significant increase in microhardness and roughness with increasing laser fluency. Increase in calcium / phosphorus ratio was seen compared to the control. The weight test results showed a significant acid resistance improvement of the laser-treated enamel surface