Chlorhexidine does not improve but preserves bond strength to eroded dentin.
Am J Dent
; 28(1): 28-32, 2015 Feb.
Article
em En
| MEDLINE
| ID: mdl-25864239
ABSTRACT
PURPOSE:
To evaluate the effect of aqueous solutions of chlorhexidine digluconate (CHX) in different concentrations on bond strength to eroded dentin up to 6 months, using normal dentin as a control.METHODS:
Exposed flat dentin of extracted third molars was only ground with 600-grit SiC paper/1 minute (normal dentin - N), or subsequently eroded by a regular-cola soft-drink (eroded dentin - E). N and E were acid-etched, washed, dried and rehydrated with 1.5 µL, respectively, of distillated water (control - NC / EC); of 0.004% CHX (N0.004% / E0.004%); or of 2% CHX (N2% / E2%). Adper Single Bond 2 was applied in all specimens and resin composite buildups were constructed with Filtek Z350. Specimens were sectioned in beams, which were tested (µTBS) immediately or after 6 months of aging.RESULTS:
Microtensile bond strength to eroded dentin was always significantly lower than that to normal dentin. Application of tested CHX solutions did not exert a significant effect immediately; however, after aging, the 2% CHX prevented abrupt bond strength loss both to eroded and normal dentin.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Erosão Dentária
/
Clorexidina
/
Colagem Dentária
/
Adesivos Dentinários
/
Dentina
Limite:
Humans
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article