NDLI: Potential of CO2 lasers (10.6 µm) associated with fluorides in inhibiting human enamel erosion

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Potential of CO2 lasers (10.6 µm) associated with fluorides in inhibiting human enamel erosion

Content Provider	Scilit
Author	Oliveira, Thayanne Monteiro Ramos Ramos, Thaysa Monteiro Esteves-Oliveira, Marcela Apel, Christian Fischer, Horst Eduardo, Carlos Steagall Jr, Washington Freitas, Patricia Moreira De
Copyright Year	2014
Description	This in vitro study aimed to investigate the potential of $CO_{2}$ lasers associated with different fluoride agents in inhibiting enamel erosion. Human enamel samples were randomly divided into 9 groups (n = 12): G1-eroded enamel; G2-APF gel; G3-AmF/NaF gel; $G4-AmF/SnF_{2}$ solution; $G5-CO_{2}$ laser (λ = 10.6 µm)+APF gel; $G6-CO_{2}$ laser+AmF/NaF gel; $G7-CO_{2}laser+AmF/SnF_{2}$solution; $G8-CO_{2}$ laser; and G9-sound enamel. The $CO_{2}$ laser parameters were: 0.45 $J/cm^{2}$; 6 μs; and 128 Hz. After surface treatment, the samples (except from G9) were immersed in 1% citric acid (pH 4.0, 3 min). Surface microhardness was measured at baseline and after surface softening. The data were statistically analyzed by one-way ANOVA and Tukey’s tests (p < 0.05). G2 (407.6 ± 37.3) presented the highest mean SMH after softening, followed by G3 (407.5 ± 29.8) and G5 (399.7 ± 32.9). Within the fluoride-treated groups, G4 (309.0 ± 24.4) had a significantly lower mean SMH than G3 and G2, which were statistically similar to each other. AmF/NaF and APF application showed potential to protect and control erosion progression in dental enamel, and $CO_{2}$ laser irradiation at $0.45J/cm^{2}$ did not influence its efficacy. $CO_{2}$ laser irradiation alone under the same conditions could also significantly decrease enamel erosive mineral loss, although at lower levels.
Related Links	http://www.scielo.br/pdf/bor/v28n1/1807-3107-bor-28-1-1807-3107BOR-2014vol280057.pdf
Ending Page	6
Page Count	6
Starting Page	1
ISSN	18068324
e-ISSN	18073107
DOI	10.1590/1807-3107bor-2014.vol28.0057
Journal	Brazilian Oral Research
Issue Number	1
Volume Number	28
Language	English
Publisher	FapUNIFESP (SciELO)
Publisher Date	2014-10-17
Access Restriction	Open
Subject Keyword	Brazilian Oral Research Dentistry and Oral Surgery Dental Enamel Tooth Erosion
Content Type	Text
Resource Type	Article

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