Shear bond strength of two adhesives to bovine dentin contaminated with various astringents.
Am J Dent
; 28(4): 229-34, 2015 Aug.
Article
em En
| MEDLINE
| ID: mdl-26437505
ABSTRACT
PURPOSE:
To investigate the in vitro shear bond strength of two adhesives to bovine dentin contaminated with various astringents.METHODS:
120 adult bovine incisors were collected and cut to obtain 240 specimens. The specimens were randomly divided into a self-etch adhesive group (N = 120) and a total-etch adhesive group (N = 120). Both of the groups were divided into the following six subgroups the non-contamination group and the contamination groups 25% Al2(SO4)3 (Orbat sensitive), 25% AlCl3 (Racestyptine), 10% AlCl3 (Roeko Gingiva Liquid), 15.5% Fe2(SO4)3 (Astringedent) and AlCl3 Paste (Astringent Retraction Paste, N = 20 in each subgroup). Each astringent was applied for 1 minute to the dentin surface before rinsing with water spray for 20 seconds. The respective adhesive was then applied according to the manufacturer's instructions. Two composite cylinders were shaped with a mold, cured on the dentin surface of each specimen and sheared off after 1 day and 1 week storage. The shear bond strengths (MPa) were recorded and analyzed with ANOVA.Results:
In the self-etching adhesive group, all astringents showed negative effects on dentin bonding (P < 0.05). Astringent contamination did not have a negative effect on dentin bonding in the total-etch adhesive group (P > 0.05).
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Adstringentes
/
Resistência ao Cisalhamento
/
Dentina
Limite:
Animals
Idioma:
En
Revista:
Am J Dent
Assunto da revista:
ODONTOLOGIA
Ano de publicação:
2015
Tipo de documento:
Article