Tensile bond strength of self-etching adhesive systems to primary dentin.
OBJECTIVE
To assess in vitro the bond strength of three self-etching adhesive systems to primary teeth dentin.


METHODS
Fifteen crowns of primary molars were sectioned mesiodistally and embedded in acrylic resin (n=30). Dentin was exposed and the specimens were randomly assigned in groups (n=10): (1) Clearfil SE Bond; (2) Prime & Bond NT/NRC; and (3) One Up Bond F. A 3 mm-diameter dentin bonding site was demarcated, the adhesive systems were applied and resin composite cones were bonded. After 24 hours in distilled water, tensile bond strength was tested to failure (0.5 mm/minute). Data were submitted to statistical analysis using one-way ANOVA and Scheffé test.


RESULTS
Means were (MPa): (1) 16.60 (+/- 4.10); (2) 8.48 (+/- 4.51); and (3) 6.75 (+/- 1.26). CSE Bond yielded significantly higher bond strengths (P < 0.05). Prime & Bond NT/NRC and One Up Bond F means were markedly low and no statistically significant difference was observed between them.
Torres
Carolina Paes
CP
Faculdade de Odontologia de Ribeirão Preto/USP. Departamento de Clinica Infantil, Odontologia Preventiva e Social, Av. do Café, s/n, Monte Alegre. CEP: 14040-904 Ribeirão Preto-SP Brasil. caroltorres@forp.usp.br
Ciccone
Juliane Cristine
JC
Ramos
Renata Pereira
RP
Corona
Silmara Aparecida Milori
SA
Palma-Dibb
Regina Guenka
RG
Borsatto
Maria Cristina
MC
D000704:Analysis of Variance; D001840:Dental Bonding / Q000379:methods*; D017220:Dentin-Bonding Agents / Q000737:chemistry*; D006801:Humans; D008689:Methacrylates / Q000737:chemistry*; D008963:Molar; D011109:Polymethacrylic Acids / Q000737:chemistry*; D019279:Resin Cements / Q000737:chemistry*; D013718:Tensile Strength; D014094:Tooth, Deciduous
C438313:Clearfil SE Bond; D017220:Dentin-Bonding Agents; D008689:Methacrylates; C446260:One-Up-Bond F; D011109:Polymethacrylic Acids; C425843:Prime and Bond NT; D019279:Resin Cements