The effect of different surface treatments on the bond strength of a gingiva-colored indirect composite veneering material to three implant framework materials.
OBJECTIVE
To evaluate and compare the shear-bond strength of a gingiva-colored indirect composite material to three different implant framework materials (zirconia ceramics, gold alloy, and titanium), and to investigate the effect of surface pretreatment by air-particle abrasion and four priming agents.


METHODS
A gingiva-colored indirect composite (Ceramage) was bonded to three framework materials (n = 80): commercially pure titanium (CP- Ti ), ADA (American Dental Association)-type 4 casting gold alloy (Type IV), and zirconia ceramics (Zirconia) with or without airborne-particle abrasion. Before bonding, the surface of the specimens was treated using no (control) or one of four priming agents: Alloy Primer (ALP), Estenia Opaque Primer (EOP), Metal Link Primer (MLP), and V-Primer (VPR). Shear-bond strength was determined after 24-h wet storage. Data were analyzed using Steel-Dwass for multiple comparisons, and Mann-Whitney U-test (P = 0.05).


RESULTS
For both CP- Ti and Zirconia substrates, three groups, ALP, EOP, and MLP, showed significantly higher bond strengths (P < 0.05) than the other groups with or without airborne-particle abrasion. For Type IV substrates, significantly higher bond strengths were obtained in ALP and MLP groups (P < 0.01) compared with the other groups with airborne-particle abrasion.


CONCLUSIONS
Application of priming agents containing specific phosphoric ester groups significantly enhances the bond strength of a gingiva-colored composite material to commercially pure titanium and zirconia frameworks. Combined use of a thione monomer with a phosphoric monomer enhances the bond strengths to airborne-particle abraded type IV gold alloy.
Department of Fixed Prosthodontics, Nihon University School of Dentistry, Tokyo, Japan.
Mai
M
Koizuka
Futoshi
F
Komine
Markus B
MB
Blatz
Ryosuke
R
Fushiki
Kohei
K
Taguchi
Hideo
H
Matsumura
D003116:Color; D001840:Dental Bonding / Q000379:methods*; D003738:Dental Cements / Q000737:chemistry*; D045662:Dental Etching; D015921:Dental Implants; D003799:Dental Stress Analysis; D003801:Dental Veneers; D006046:Gold / Q000737:chemistry*; D006801:Humans; D008689:Methacrylates / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D013499:Surface Properties; D013871:Thiones / Q000737:chemistry; D014025:Titanium / Q000737:chemistry*; D014227:Triazines / Q000737:chemistry; D015040:Zirconium / Q000737:chemistry*
C521707:Alloy Primer; D003738:Dental Cements; D015921:Dental Implants; C521708:Estenia Opaque Primer; D008689:Methacrylates; D013871:Thiones; D014227:Triazines; C107059:V-Primer; C100646:Metal Primer; D006046:Gold; D015040:Zirconium; D014025:Titanium; C028541:zirconium oxide