Effect of 532 nm Nd:YAG Laser Irradiation on Enamel Surface after Interproximal Enamel Reduction

doi:10.13701/j.cnki.kqyxyj.2023.02.015

Abstract

Abstract: Objective: To evaluate the effect of 532nm Nd:YAG laser irradiation on enamel surface after interproximal enamel reduction. Methods: The tooth models with interproximal enamel reduction were established, and divided into control group, fluorine preparation group, and different power laser combined with synergist groups according to different treatment methods. The enamel surface topography was evaluated by scanning electron microscope (SEM). The amount of streptococcus mutans adhesion was measured by the plate count method. Results: The surface topographies measured by SEM in the 2.2 W laser irradiation group was significantly smoother compared to other groups. The amount of bacterial adhesion on the enamel surface in groups excluding the 2.8 W and 3.0 W laser groups was less than that of the control group (P<0.05), and the 2.4W laser irradiation group had the minimum amount of bacterial adhesion, but the difference was not statistically significant compared with the 2.2 W laser group (P>0.05). Conclusion: 2.2 W Nd:YAG laser irradiation combined with synergist can safely and significantly reduce the surface roughness and bacterial adhesion of enamel with interproximal enamel reduction.

Key words: Nd:YAG laser, interproximal enamel reduction, enamel surface, bacterial adhesion

YI Zhou, ZOU Zhaohui, WANG Yue, XIE Bingxin, ZUO Zhigang, YU Xin. Effect of 532 nm Nd:YAG Laser Irradiation on Enamel Surface after Interproximal Enamel Reduction[J]. Journal of Oral Science Research, 2023, 39(2): 164-167.

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