Fluoridated light-activated bonding resin adhesion to enamel and dentin: primary vs. permanent.
OBJECTIVE
This study compared fluoridated bonding resin adhesion to primary enamel (Group 1), primary dentin (Group 2), permanent enamel (Group 3), and permanent dentin (Group 4).


METHODS
The buccal surfaces of 24 primary molars and 24 premolars were used. The bonding system and resin composite used in this study were Imperva Fluorobond and Lite-Fil IIA (Shofu Inc., Kyoto, Japan). Effects of tooth surface conditioning by FB primer were observed using SEM (N = 2/group). Shear bond strengths (SBS) were tested, and the test surfaces of enamel, dentin, and resin specimens were observed using SEM (N = 10/group). Data was statistically analyzed using one-way ANOVA with subsequent post hoc Duncan's new multiple range test at P < 0.05.


RESULTS
Effects of tooth surface conditioning by FB primer were appropriate to dentin but low to enamel. Means and standard deviations of the SBS for each group were: Group 1 (16.34, 5.53 MPa), Group 2 (15.06, 7.02 MPa), Group 3 (14.39, 6.52 MPa) and Group 4 (15.45, 5.35 MPa). There was no significant difference of SBS among Groups 1, 2, 3, and 4.


CONCLUSIONS
Imperva Fluorobond system gave the same level of bond strength to primary enamel, primary dentin, permanent enamel, and permanent dentin.
Hosoya
Y
Y
Department of Pediatric Dentistry, Nagasaki University School of Dentistry, Japan.
Kawashita
Y
Y
Yoshida
M
M
Suefuji
C
C
Marshall
G W
GW
D000134:Acid Etching, Dental; D000704:Analysis of Variance; D003188:Composite Resins; D001840:Dental Bonding; D003738:Dental Cements; D003743:Dental Enamel; D003804:Dentin; D019229:Dentition, Permanent; D005460:Fluorides, Topical; D006801:Humans; D008422:Materials Testing; D011897:Random Allocation; D018709:Statistics, Nonparametric; D013718:Tensile Strength; D014094:Tooth, Deciduous
D003188:Composite Resins; D003738:Dental Cements; D005460:Fluorides, Topical; C072652:FluoroBond; C083468:Lite-fil CR