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Effect of surface treatment on roughness and bond strength of CAD‐CAM multidirectional glass fiber‐reinforced composite resin used for implant‐supported prostheses
Author(s) -
Kürkçüoğlu Işın,
Küçükeşmen Hakkı Cenker,
Ozkir Serhat Emre,
Yilmaz Burak
Publication year - 2021
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.6173
Subject(s) - materials science , composite material , composite number , bond strength , surface roughness , profilometer , shear strength (soil) , abrasion (mechanical) , acrylic resin , coating , adhesive , layer (electronics) , environmental science , soil science , soil water
The study evaluated the effect of different surface treatments on the surface roughness of a new‐generation fiber‐reinforced CAD‐CAM composite resin (FRC) and its bond strength to veneered composite resin. Fifty specimens (10 mm × 10 mm × 1 mm) were prepared from FRC blocks (Trinia; Shofu) and embedded in acrylic resin. The specimens were divided into five groups ( n = 10) for different surface treatments: nontreated (control), Al 2 O 3 airborne particle abrasion, silica coating (Cojet), acid etching (H 2 SO 4 ) and hydrogen peroxide (H 2 O 2 ) application. Surface roughness ( R a ) of the specimens was measured using a profilometer. A veneering composite resin (3 mm in diameter by 4 mm in length) was applied on the specimens. The shear bond strength between the FRC and the veneering resin was measured. A one‐way analysis of variance was used to analyze the data. The differences among the groups were analyzed with Dunn post hoc tests ( α = 0.05). Surface treatments increased the surface roughness, and Al 2 O 3 airborne particle abrasion resulted in the highest R a value followed by H 2 SO 4 , Cojet, H 2 O 2 and control group ( P < 0.05). The highest shear bond strength was achieved with Al 2 O 3 application ( P < 0.05). Cojet and H 2 O 2 applications resulted in higher shear bond strength than the control ( P < 0.05). H 2 SO 4 application resulted in lower bond strength than the control ( P < 0.05). Surface treatments increased the surface roughness of FRC. Al 2 O 3 and silica coating increased the surface roughness more than the chemical applications. The tested surface treatments can be used to increase the bond strength except for the H 2 SO 4 application. © 2021 Society of Chemical Industry