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Effect of Er:YAG laser on controlling dental enamel wear

Grant number: 11/23252-0
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): May 01, 2012
Effective date (End): December 31, 2014
Field of knowledge:Health Sciences - Dentistry - Dental Clinics
Principal researcher:Silmara Aparecida Milori Corona
Grantee:Renata Siqueira Scatolin
Home Institution: Faculdade de Odontologia de Ribeirão Preto (FORP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil


This study, composed of two in situ experiments, aims to evaluate the effect of Er:YAG laser irradiation in controlling the progression of erosive lesions and analyze the influence of abrasion on these surfaces irradiated and subjected to acid challenge . In the first experiment, composed of two phases, 14 volunteers will wear intraoral devices containing enamel fragments with erosive lesions and treated or not with Er:YAG laser. During the experimental phases, the specimens will be submitted to erosive challenges or water, alternately and independently. At the end of intraoral phase, specimens will be evaluated for microhardness and optical profilometry. In the second experiment, preparation and selection of specimens of bovine enamel, formation of initial erosive lesions and treatments will be performed as previous described to the first experiment. After treatments, specimens will be mounted in palatal device to be installed in the volunteers to perform the erosive and erosive / abrasive challenges. Erosive challenges will be performed by volunteers through immersion of devices in 150 mL of orange juice ,four times a day, during 5 days. After the erosive challenges, one side of the device will be submitted to abrasive wear. At the end of in situ phase, the specimens will be submitted to scanning by means of an optical profilometer. An analysis by atomic force microscopy will be perform in two specimens of each experimental group. The data obtained in two in situ experiments will be submitted to statistical analysis. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
SCATOLIN, RENATA SIQUEIRA; COLUCCI, VIVIAN; LEPRI, TAISA PENAZZO; DE ALEXANDRIA, ADILIS KALINA; MAIA, LUCIANNE COPLE; GALO, RODRIGO; BORSATTO, MARIA CRISTINA; MILORI CORONA, SILMARA APARECIDA. Non-contact profilometry of eroded and abraded enamel irradiated with an Er:YAG laser. Journal of Applied Oral Science, v. 26, p. -, 2018. Web of Science Citations: 1.
SCATOLIN, R. S.; COLUCCI, V.; LEPRI, T. P.; ALEXANDRIA, A. K.; MAIA, L. C.; GALO, R.; BORSATTO, M. C.; CORONA, S. A. M. Er:YAG laser irradiation to control the progression of enamel erosion: an in situ study. Lasers in Medical Science, v. 30, n. 5, p. 1465-1473, JUL 2015. Web of Science Citations: 6.

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