Effect of luting agents on the tensile bond strength of glass fiber posts: An in vitro study

Statement of problem Fiber posts can fail because of loss of retention; and it is unknown which luting agent provides the highest bond strength. Purpose The purpose of this study was to investigate the tensile bond strength of glass fiber posts luted to premolar teeth with 6 resin composite luting a...

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Published in:The Journal of prosthetic dentistry 2013-09, Vol.110 (3), p.216-222
Main Authors: Aleisa, Khalil, BDS, MSc, Al-Dwairi, Ziad N., BDS, PhD, Alghabban, Rawda, BDS, Goodacre, Charles J., DDS, MSD
Format: Article
Language:English
Subjects:
Bisphenol A-Glycidyl Methacrylate - chemistry
Composite Resins - chemistry
Dental Bonding
Dental Materials - chemistry
Dental Pulp Cavity - ultrastructure
Dental Stress Analysis - instrumentation
Dentin - ultrastructure
Dentistry
Glass - chemistry
Humans
Materials Testing
Methacrylates - chemistry
Polyethylene Glycols - chemistry
Polymethacrylic Acids - chemistry
Post and Core Technique - instrumentation
Resin Cements - chemistry
Root Canal Preparation - methods
Stress, Mechanical
Tensile Strength
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Summary:Statement of problem Fiber posts can fail because of loss of retention; and it is unknown which luting agent provides the highest bond strength. Purpose The purpose of this study was to investigate the tensile bond strength of glass fiber posts luted to premolar teeth with 6 resin composite luting agents. Material and methods Ninety-six single-rooted extracted human mandibular premolars were sectioned 2 mm coronal to the most incisal point of the cementoenamel junction. Root canals were instrumented and obturated with laterally condensed gutta percha and root canal sealer (AH26). Gutta percha was removed from the canals to a depth of 8 mm and diameter post spaces with a 1.5 mm were prepared. The specimens were divided into the following 6 groups according to the luting agent used (n=16): Group V, Variolink II; Group A, RelyX ARC; Group N, Multilink N; Group U, RelyX Unicem; Group P, ParaCore; Group F, MultiCore Flow. Each specimen was secured in a universal testing machine and a separating load was applied at a rate of 0.5 mm/min. The forces required to dislodge the posts were recorded. A 1-way analysis of variance (ANOVA) was applied to the mean retentive strengths of various cement materials (α=.05). Results Significant differences were recorded among the 6 cement types ( P
ISSN:0022-3913
1097-6841
DOI:10.1016/S0022-3913(13)60360-1