title: Effect of Luting Agents on Retention of Dental Implant-Supported Prostheses.
abstract: To evaluate the retentive strength of 7 different luting agents in cement-retained implant abutment/analog assemblies. Fifty-six externally hexed dental implant abutment/analog assemblies and cast superstructures were divided randomly into 7 groups for cementation with each of the 7 luting agents. Five definitive cements tested were zinc phosphate cement, All-Bond 2, Maxcem, RelyX Luting cement, HY-Bond, and two provisional cements, ImProv and Premier. Cast superstructures were cemented onto the implant abutments and exposed to 1000 thermal cycles (0°C-55°C) and 100 000 cycles on a chewing simulator (75 N load). A universal testing machine was used to measure cement failure load of the assembled specimens. Cement failure load was evaluated with 1-way ANOVA and Duncan's multiple range analysis. Significant differences in cement failure loads were measured (P < .0001). Post hoc testing with Duncan's multiple range indicated 4 separate groupings. Maxcem and All-Bond 2 were comparable, having the greatest load failure. RelyX and zinc phosphate cement were analogous, and higher than HY-Bond. Improv and Premier constituted a pair, which demonstrated the lowest retentive values. Within the limitations of this in vitro study, Maxcem and All-Bond 2 are good candidates for cement-retained implant prostheses while concerning retention.
authors.affiliation: 1  Department of General Dentistry, Chang Gung Memorial Hospital, Chang Gung University, Taipei, Taiwan.
authors.forename: Yu-Hwa
authors.initials: YH
authors.lastname: Pan
authors.affiliation: 1  Department of General Dentistry, Chang Gung Memorial Hospital, Chang Gung University, Taipei, Taiwan.
authors.forename: Tai-Min
authors.initials: TM
authors.lastname: Lin
authors.affiliation: 2  Department of Prosthodontics, School of Dentistry, University of Alabama at Birmingham, Ala.
authors.forename: Perng-Ru
authors.initials: PR
authors.lastname: Liu
authors.affiliation: 3  Department of General Dental Sciences, School of Dentistry, University of Alabama at Birmingham, Ala.
authors.forename: Lance C
authors.initials: LC
authors.lastname: Ramp
mesh_terms: D002484:Cementation; D000044:Dental Abutments; D003738:Dental Cements; D015921:Dental Implants; D017268:Dental Prosthesis Retention; D019094:Dental Prosthesis, Implant-Supported; D008422:Materials Testing; D011897:Random Allocation; D019279:Resin Cements; D015036:Zinc Phosphate Cement
chemical_list: D003738:Dental Cements; D015921:Dental Implants; D019279:Resin Cements; D015036:Zinc Phosphate Cement
keywords: cement; implant; luting agent