Evaluation of in vitro push-out bond strengths of different post-luting systems after artificial aging

Luca Marigo, Massimo Cordaro, Carlo Lajolo, Camillo D'Arcangelo, Francesco De Angelis, Mirco Vadini

Risultato della ricerca: Contributo in rivistaArticolo in rivista

3 Citazioni (Scopus)

Abstract

BACKGROUND: The purpose of this study was to evaluate the push-out bond strengths of four commercially available adhesive luting systems (two self-adhesive and two etch-and-rinse systems) after mechanical aging. METHODS: Forty single-rooted anterior teeth were divided into four groups according to the luting cement system used: Cement-One (Group 1); One-Q-adhesive Bond + Axia Core Dual (Group 2); SmartCem® 2 (Group 3); and XP Bond® + Core-X™ Flow (Group 4). Anatomical Post was cemented in groups 1 and 2, and D.T. Light-Post Illusion was cemented in groups 3 and 4. All samples were subjected to masticatory stress simulation consisting of 300,000 cycles applied with a computer-controlled chewing simulator. Push-out bond strength values (MPa) were calculated at cervical, middle, and apical each level, and the total bond strengths were calculated as the averages of the three levels. Statistical analysis was performed with data analysis software and significance was set at P<0.05. RESULTS: Statistically significant differences in total bond strength were detected between the cements (Group 4: 3.28 MPa, Group 1: 2.77 MPa, Group 2: 2.36 MPa, Group 3: 1.13 MPa; P<0.05). Specifically, Group 1 exhibited a lower bond strength in the apical zone, Group 3 exhibited a higher strength in this zone, and groups 2 and 4 exhibited more homogeneous bonding strengths across the different anatomical zones. CONCLUSIONS: After artificial aging, etch-and-rinse luting systems exhibited more homogeneous bond strengths; nevertheless, Cement-One exhibited a total bond strength second only to Core-X Flow.
Lingua originaleEnglish
pagine (da-a)20-27
Numero di pagine8
RivistaMinerva Stomatologica
Volume66
DOI
Stato di pubblicazionePubblicato - 2017

Keywords

  • Cuspid
  • Dental Bonding
  • Dental Cements
  • Dental Etching
  • Glass Ionomer Cements
  • Humans
  • In Vitro Techniques
  • Incisor
  • Mastication
  • Materials Testing
  • Post and Core Technique
  • Random Allocation
  • Resin Cements
  • Root Canal Preparation

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