Effect of luting agent on the load to failure and accelerated-fatigue resistance of lithium disilicate laminate veneers

Dental Materials : Official Publication of the Academy of Dental Materials
Marco GresnigtPascal Magne

Abstract

The aim of this study was to investigate the influence of the luting agent on the application of laminate veneers (LVs) in an accelerated fatigue and load-to-failure test after thermo-cyclic aging. Sound maxillary central incisors (N=40) were randomly divided into four groups to receive LVs (Li2Si2O5) that were adhesively bonded: Group CEMF: Adhesive cement (Variolink Esthetic LC), fatigue test; Group CEMLF: Adhesive cement, load-to-failure test; Group COMF: Resin composite (Enamel HFO), fatigue test; Group COMLF: Resin composite, load-to-failure test. The specimens were thermo-mechanically aged (1.2×106 cycles at 1.7Hz/50N, 8000 cycles 5-55°C) and then subjected to either accelerated fatigue (5Hz, 25N increasing after each 500 cycles) or load to failure (1mm/min). Failure types were classified and data analyzed using chi-square, Kaplan Meier survival, Log Rank (Mantel-Cox) and independent-samples t-test. After thermo-mechanical aging, fracture resistance (p<0.000) was higher in the composite groups. Kaplan Meier survival rates showed significant difference (p<0.001) between the composite (mean load: 1165N; mean cycles: 22.595) and the cement groups (mean load: 762.5N; mean cycles: 14.569). The same differences were observed in...Continue Reading

Associated Clinical Trials

Citations

Feb 25, 2018·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Sven RinkeDirk Ziebolz
Jun 9, 2018·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Farhad Vahidi
Feb 25, 2020·Journal of the Mechanical Behavior of Biomedical Materials·Marco M M GresnigtJean-Pierre Attal
Feb 23, 2021·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Marco DederichsHarald Kuepper
Nov 11, 2019·The Journal of Prosthetic Dentistry·Fabíola Jardim BarbonNoéli Boscato
Aug 4, 2018·Dental Materials : Official Publication of the Academy of Dental Materials·Chinwe O UwalakaMichael J Cattell
May 16, 2019·Dental Materials : Official Publication of the Academy of Dental Materials·Marco M M GresnigtMutlu Özcan
Aug 8, 2020·Dental Materials : Official Publication of the Academy of Dental Materials·Luis Felipe J SchneiderLarissa Maria Cavalcante
Sep 6, 2020·Dental Materials : Official Publication of the Academy of Dental Materials·Rogério L MarcondesRafael R Moraes
Jun 11, 2021·Journal of Prosthodontic Research·Paolo BaldissaraLeonardo Ciocca
Jun 12, 2021·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Bruno Pereira SilvaEduardo Mahn

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