In situ investigation of the effect of TiF4 and CO2 laser irradiation on the permeability of eroded enamel

Autor(es)

Lepri, Taisa Penazzo ^[1] ; Colucci, Vivian ^[2] ; Turssi, Cecilia Pedroso ^[3] ; Milori Corona, Silmara Aparecida ^[1]

Afiliação do(s) autor(es)

^[1] Ribeirao Preto Sch Dent USP, Dept Restorat Dent, BR-14040904 Ribeirao Preto, SP - Brazil

^[2] Univ Ribeirao Preto, Sch Dent, BR-14096900 Ribeirao Preto, SP - Brazil

^[3] Sao Leopoldo Mandic Inst & Dent Res Ctr, Dept Restorat Dent, BR-13045755 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ARCHIVES OF ORAL BIOLOGY; v. 60, n. 6, p. 941-947, JUN 2015.
• Citações Web of Science: 7

Resumo

Objective: Interest in erosion and its role in tooth wear has increased considerably. Due to the limited contribution of patients in modifying their dietary habits, therapeutic resources aiming to reduce the progression of erosion-like lesions have been discussed. This study sought to evaluate the effect of TiF4 and CO2 laser in controlling the permeability of in situ eroded enamel. Design: Ten volunteers wore an intraoral palatal device containing two enamel slabs, treated with TiF4 gel and TiF4 gel + CO2 or placebo gel and placebo gel + CO2. After the washout period, volunteers were crossed over to the other treatment. During both phases, specimens were submitted to erosive challenges and then evaluated for permeability measured as the percentage of copper ion penetration over the total enamel thickness. Results: Two-way analysis of variance (ANOVA) revealed that there was a significant interaction between the factors under study (p = 0.0002). Tukey's test showed that TiF4 significantly reduced the enamel permeability of eroded enamel specimens, regardless of whether CO2 laser irradiation was performed. Conclusions: It may be concluded that when the placebo gel was applied, CO2 laser was able to reduce enamel permeability; however, when TiF4 was applied, laser irradiation did not imply a reduction in permeability. TiF4 provided a lower permeability of eroded enamel, regardless of whether the CO2 laser was used. (C) 2015 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 08/08863-0 - Influência da associação de diferentes tipos de fluoretos à irradiação com laser de CO2 no controle da progressão de lesões de erosão. avaliação in vitro e in situ
• Beneficiário: Taisa Penazzo Lepri
• Modalidade de apoio: Bolsas no Brasil - Mestrado