Non-contact profilometry of eroded and abraded enamel irradiated with an Er:YAG laser

Autor(es)

Renata Siqueira Scatolin ^[1] ; Vivian Colucci ^[2] ; Taísa Penazzo Lepri ^[3] ; Adílis Kalina de Alexandria ^[4] ; Lucianne Cople Maia ^[5] ; Rodrigo Galo ^[6] ; Maria Cristina Borsatto ^[7] ; Silmara Aparecida Milori Corona ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Fac Odontol Ribeirao Preto, Dept Odontol Restauradora, Av Cafe S-N, BR-14040904 Ribeirao Preto, SP - Brazil

^[2] Univ Ribeirao Preto, Dept Odontol, Ribeirao Preto, SP - Brazil

^[3] Universidade de São Paulo. Faculdade de Odontologia de Ribeirão Preto. Departamento de Odontologia Restauradora - Brasil

^[4] Universidade Federal do Rio de Janeiro. Faculdade de Odontologia. Departamento de Odontopediatria e Ortodontia - Brasil

^[5] Univ Fed Rio de Janeiro, Fac Odontol, Dept Odontopediat & Ortodontia, Rio De Janeiro, RJ - Brazil

^[6] Univ Vale Jequitinhonha & Mucuri, Dept Odontol, Diamantina, MG - Brazil

^[7] Univ Sao Paulo, Fac Odontol Ribeirao Preto, Dept Clin Infantil, Ribeirao Preto, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Applied Oral Science; v. 26, 2018-05-07.

Resumo

Abstract Literature has reported positive results regarding the use of lasers in the control of erosive lesions; however, evaluating whether they are effective in the control of the progression of erosive/abrasive lesions is important. Objectives This study aimed to evaluate the effect of the Er:YAG laser irradiation in controlling the progression of erosion associated with abrasive lesions in enamel. Material and methods Bovine incisors were sectioned, flattened and polished. Forty-eight enamel slabs were subjected to treatment in an intraoral phase. Twelve volunteers used an intraoral appliance containing one slab that was irradiated with an Er:YAG laser (5.2 J/cm2, 85 mJ, 2 Hz) and another non-irradiated slab on each side of the appliance, during one phase of 5 d, under a split-mouth design. Devices were subjected to erosive challenges (1% citric acid, 5 min, 3 times a day) and abrasive challenges one h after (brushing force of 1.5 N for 15 s) randomly and independently on each side of the device. Measurements of enamel loss were performed via 3D optical profilometry (μm). We analyzed data using the Kruskal-Wallis and Mann-Whitney tests and morphological characteristics via scanning electron microscopy. Results Following erosive and abrasive challenges, the group that was irradiated with the Er:YAG laser presented less loss of structure than the non-irradiated group. The group that underwent erosion and irradiation did not exhibit a significant difference from the non-irradiated group. Conclusion Irradiation with the Er:YAG laser did not control the loss of structure of enamel subjected to erosion but did control abrasion after erosion. (AU)

• Processo FAPESP: 11/00272-5 - Estudo in vivo do laser de Er:YAG em dentes decíduos: análise da eficácia e eficiência na remoção de lesões de cárie, avaliação microbiológica das cavidades preparadas e das restaurações realizadas
• Beneficiário: Silmara Aparecida Milori Corona
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 11/23252-0 - Efeito do laser de Er:YAG no controle do desgaste do esmalte dental
• Beneficiário: Renata Siqueira Scatolin
• Modalidade de apoio: Bolsas no Brasil - Doutorado