title: Shear bond, wettability and AFM evaluations on CO2laser-irradiated CAD/CAM ceramic surfaces.
abstract: The purpose of this study is to determine the CO2laser irradiation in comparison with sandblasting (Sb), hydrofluoric acid (Hf) and silane coupling agent (Si) on shear bond strength (SBS), roughness (Rg) and wettability (Wt) of resin cement to CAD/CAM ceramics. Sixty (CAD/CAM) ceramic discs were prepared and distributed into six different groups: group A, control lithium disilicate (Li); group B, control zirconia (Zr); group C, Li: CO2/HF/Si; group D, Li: HF/Si; group E, Zr: CO2/Sb/Si; group F, Zr: Sb/Si. Result showed significant difference between irradiated and non-irradiated in terms of shear bond strength for zirconia ceramics (p value = 0.014). Moreover, partial surface wettability for irradiated and non-irradiated ceramics. Irradiated surface demonstrated more rough surface in lithium disilicate than zirconia ceramics. CO2irradiation could increase shear bond strength, surface roughness and wettability for both CAD/CAM ceramics.
authors.affiliation: Micoralis EA 7354 Laboratory, University Côte d'Azur, Nice, France. aelgamal@unice.fr.
authors.forename: Ahmed
authors.initials: A
authors.lastname: El Gamal
authors.affiliation: Micoralis EA 7354 Laboratory, University Côte d'Azur, Nice, France.
authors.forename: Etienne
authors.initials: E
authors.lastname: Medioni
authors.affiliation: Micoralis EA 7354 Laboratory, University Côte d'Azur, Nice, France.
authors.forename: Jean Paul
authors.initials: JP
authors.lastname: Rocca
authors.affiliation: Micoralis EA 7354 Laboratory, University Côte d'Azur, Nice, France.
authors.forename: Carlo
authors.initials: C
authors.lastname: Fornaini
authors.affiliation: Micoralis EA 7354 Laboratory, University Côte d'Azur, Nice, France.
authors.forename: Omid H
authors.initials: OH
authors.lastname: Muhammad
authors.affiliation: Mines ParisTech, Centre de Mise en Forme des Matériaux (CEMEF), CNRS-UMR 7635, Sophia Antipolis, France.
authors.forename: Nathalie
authors.initials: N
authors.lastname: Brulat-Bouchard
mesh_terms: D002516:Ceramics / Q000528:radiation effects*; D017076:Computer-Aided Design; D003776:Dental Porcelain / Q000528:radiation effects; D006858:Hydrofluoric Acid / Q000737:chemistry; D054020:Lasers, Gas; D008422:Materials Testing; D018625:Microscopy, Atomic Force; D019279:Resin Cements / Q000737:chemistry / Q000528:radiation effects; D033081:Shear Strength; D013314:Stress, Mechanical; D017155:Wettability; D015040:Zirconium / Q000528:radiation effects
chemical_list: D019279:Resin Cements; C493120:lithia disilicate; D003776:Dental Porcelain; D015040:Zirconium; D006858:Hydrofluoric Acid; C028541:zirconium oxide
keywords: CAD/CAM ceramics; CO2 laser; Roughness; Shear bond strength; Wettability