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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Permeability of eroded enamel following application of different fluoride gels and CO2 laser

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Author(s):
Lepri, Taisa Penazzo [1, 2] ; Colucci, Vivian [1] ; Turssi, Cecilia Pedroso [3] ; Milori Corona, Silmara Aparecida [1]
Total Authors: 4
Affiliation:
[1] Univ Sao Paulo, Dept Restorat Dent, Ribeirao Preto Sch Dent, BR-14040904 Ribeirao Preto - Brazil
[2] Univ Sao Paulo, Dept Odontol Restauradora, Fac Odontol Ribeirao Preto, BR-14040904 Ribeirao Preto, SP - Brazil
[3] Sao Leopoldo Mandic Inst & Dent Res Ctr, Dept Restorat Dent, BR-13045755 Sao Paulo - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Lasers in Medical Science; v. 28, n. 1, p. 235-240, JAN 2013.
Web of Science Citations: 7
Abstract

This study evaluated the combined effect of fluoride compounds and CO2 laser in controlling the permeability of eroded enamel. Bovine enamel slabs (3 x 2 mm) were cycled twice through an alternating erosion and remineralization regimen. Slabs were immersed in 20 ml of orange juice (pH 3.84) for 5 min under agitation, rinsed with deionized water, and stored in artificial saliva for 4 h to form erosive lesions. Specimens were then divided into four groups (n = 10), which were treated for 1 min with either a control or with one of the following gels: amine fluoride (AmF), titanium tetrafluoride (TiF4), or sodium fluoride (NaF). Half of the specimens were irradiated with a CO2 laser (lambda = 10.6 mu m; 2.0 W). Specimens were cycled two more times through the aforementioned erosion-remineralization regimen and were subjected to permeability assessment. ANOVA demonstrated a significant interaction between fluoride and laser treatment (p = 0.0152). Tukey's test showed that when fluoride was applied alone, TiF4 resulted in lower enamel permeability than that observed after application of the placebo gel. Intermediate permeability values were noted after NaF and AmF had been used. A significant reduction in enamel permeability was obtained when fluoride was combined with CO2 laser treatment, with no difference between fluoride gels. Permeability of eroded enamel may be reduced by combining the application of fluoride gels with CO2 laser irradiation. (AU)

FAPESP's process: 08/08863-0 - Influence of CO2 laser combined with fluoride on inhibition of enamel erosion
Grantee:Taisa Penazzo Lepri
Support Opportunities: Scholarships in Brazil - Master