International Journal of Dental Sciences and Research
ISSN (Print): 2333-1135 ISSN (Online): 2333-1259 Website: Editor-in-chief: Marcos Roberto Tovani Palone
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International Journal of Dental Sciences and Research. 2018, 6(2), 39-42
DOI: 10.12691/ijdsr-6-2-4
Open AccessArticle

Er: YAG Laser Assisted Bleaching Procedures Effect on Enamel Topography

Ola M. Sakr1, 2,

1Department of Conservative Dentistry, College of Dentistry, Qassim University, Kingdom of Saudi Arabia

2Department of Operative Dentistry, College of Dentistry, Misr University for science and Technology, Egypt

Pub. Date: March 07, 2018

Cite this paper:
Ola M. Sakr. Er: YAG Laser Assisted Bleaching Procedures Effect on Enamel Topography. International Journal of Dental Sciences and Research. 2018; 6(2):39-42. doi: 10.12691/ijdsr-6-2-4


The aim of this study was to evaluate the effect of using Er: YAG laser during in-office tooth bleaching on enamel surface. Method: Thirty enamel discs specimens of human anterior teeth and divided into three groups, Group 1: (control) specimens received no bleaching treatment; Group 2: specimens received conventional in-office bleaching treatment using Opalescence Boost PF tooth whitening systems; Group 3: specimens received laser assisted bleaching procedure using low energy Er: YAG laser to assist tested bleaching gels. After bleaching, Specimens were stored for 15 days in artificial saliva. Digital microscope and images analysis used to evaluate surface roughness. Scanning electron micrographs were captured to evaluate enamel surface changes. Data were statistically analyzed using Aasistat 7.6 statistics software with Student t-test. Results Conventional in-office bleached enamel showed statistically significant higher enamel surface roughness than unbleached enamel surface with changes in enamel surface morphology were observed. While ER: YAG laser assisted bleached enamel, surfaces showed non-statistically significant higher enamel surface roughness than unbleached enamel surface with minor changes in enamel surface morphology were observed. Conclusions: Tested laser assisted bleaching procedures showed safely enamel surface treatment than conventional in-office bleaching procedures.

In office bleaching laser assisted bleaching Enamel Surface roughness

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