title: Bonding effectiveness of self-adhesive and conventional-type adhesive resin cements to CAD/CAM resin blocks. Part 2: Effect of ultrasonic and acid cleaning.
abstract: The present study assessed the effect of ultrasonic and acid cleaning on resin cement bonding to CAD/CAM resin blocks. One of two resin cements, PANAVIA V5 (PV5) or PANAVIA SA CEMENT HANDMIX (PSA), were bonded to one of 24 CAD/CAM blocks (KATANA AVENCIA BLOCK). Each cement group was divided into four subgroups: no cleaning (Ctl), ultrasonic cleaning (Uc), acid cleaning (Ac) and Uc+Ac. Micro-tensile bond strengths (µTBSs) were measured immediately and 1, 3, and 6 months after water storage. Block surfaces after each treatment were analyzed by scanning electron microscopy. Analysis of variance revealed a statistically significant effect for the parameters 'surface treatment' (p<0.001, F=40), 'resin cement' (p<0.001, F=696) and 'water aging' (p<0.001, F=71). The PV5 group exhibited higher µTBS values than the PSA group. Although cleaning after sandblasting was effective in removing residual alumina particles, it did not affect the long-term bonding durability with non-contaminated CAD/CAM resin blocks.
authors.affiliation: Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry.
authors.forename: Asuka
authors.initials: A
authors.lastname: Kawaguchi
authors.forename: Mariko
authors.initials: M
authors.lastname: Matsumoto
authors.forename: Mami
authors.initials: M
authors.lastname: Higashi
authors.forename: Jiro
authors.initials: J
authors.lastname: Miura
authors.forename: Takuya
authors.initials: T
authors.lastname: Minamino
authors.forename: Tomoshige
authors.initials: T
authors.lastname: Kabetani
authors.forename: Fumio
authors.initials: F
authors.lastname: Takeshige
authors.forename: Atsushi
authors.initials: A
authors.lastname: Mine
authors.forename: Hirofumi
authors.initials: H
authors.lastname: Yatani
mesh_terms: D000134:Acid Etching, Dental / Q000379:methods*; D017076:Computer-Aided Design; D001840:Dental Bonding / Q000379:methods*; D003738:Dental Cements; D019243:Enamel Microabrasion / Q000379:methods*; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D019279:Resin Cements / Q000737:chemistry*; D055116:Self-Curing of Dental Resins; D012821:Silanes / Q000737:chemistry*; D013314:Stress, Mechanical; D013718:Tensile Strength; D014465:Ultrasonics / Q000379:methods*
chemical_list: C029849:Clearfil Bonding Agent; D003738:Dental Cements; D019279:Resin Cements; D012821:Silanes; C112277:panavia sandblasted resin