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The erosion and abrasion‐inhibiting effect of TiF 4 and NaF varnishes and solutions on enamel in vitro
Author(s) -
LEVY FLÁVIA MAUAD,
MAGALHÃES ANA CAROLINA,
GOMES MARINA FRANCISCON,
COMAR LIVIA PICCHI,
RIOS DANIELA,
BUZALAF MARÍLIA AFONSO RABELO
Publication year - 2012
Publication title -
international journal of paediatric dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.183
H-Index - 62
eISSN - 1365-263X
pISSN - 0960-7439
DOI - 10.1111/j.1365-263x.2011.01151.x
Subject(s) - enamel paint , varnish , abrasion (mechanical) , dentistry , materials science , saliva , medicine , composite material , coating
International Journal of Paediatric Dentistry 2011; 22: 11–16 Objective. Previous in vitro study has shown that TiF 4 varnish might reduce enamel erosion. No data regarding the effect of this experimental varnish on enamel erosion plus abrasion, however, are available so far. Thus, this in vitro study aimed to analyse the effect of TiF 4 compared with NaF varnishes and solutions, to protect against enamel erosion with or without abrasion. Methods. Enamel specimens were pre‐treated with experimental‐TiF 4 (2.45% F), experimental‐NaF (2.45% F), NaF‐Duraphat (2.26% F), and placebo varnishes; NaF (2.26% F) and TiF 4 (2.45% F) solutions. Controls remained untreated. The erosive challenge was performed using a soft drink (pH 2.6) 4 × 90 s/day (ERO) and the toothbrushing abrasion (ERO+ABR) 2 × 10 s/day, for 5 days. Between the challenges, the specimens were exposed to artificial saliva. Enamel loss was measured profilometrically (μm). Results. Kruskal–Wallis/Dunn tests showed that all fluoridated varnishes (TiF 4 –ERO:0.53 ± 0.20, ERO+ABR:0.65 ± 0.19/NaF‐ERO:0.94 ± 0.18, ERO+ABR:1.74 ± 0.37/Duraphat‐ERO:1.00 ± 0.37, ERO+ABR:1.72 ± 0.58) were able to significantly reduce enamel loss when compared with placebo varnish (ERO:3.45 ± 0.41/ERO+ABR:3.20 ± 0.66) ( P < 0.0001). Placebo varnish, control (ERO:2.68 ± 0.53/ERO+ABR:3.01 ± 0.34), and fluoridated (NaF‐ERO:2.84 ± 0.09/ERO+ABR:2.40 ± 0.21/TiF 4 ‐ERO:3.55 ± 0.59/ERO+ABR:4.10 ± 0.38) solutions did not significantly differ from each other. Conclusion. Based on the results, it can be concluded that the TiF 4 varnish seems to be a promising treatment to reduce enamel loss under mild erosive and abrasive conditions in vitro .