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Can viscosity of acid etchant influence the adhesion of fibre posts to root canal dentine?

Salas, M. M. S. ; Bocangel, J. S. ; Henn, S. ; Pereira-Cenci, T. ; Cenci, M. S. ; Piva, E. ; Demarco, F. F.

International endodontic journal, 2011-11, Vol.44 (11), p.1034-1040 [Revista revisada por pares]

Oxford, UK: Blackwell Publishing Ltd

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Can viscosity of acid etchant influence the adhesion of fibre posts to root canal dentine?
Autor: Salas, M. M. S. ; Bocangel, J. S. ; Henn, S. ; Pereira-Cenci, T. ; Cenci, M. S. ; Piva, E. ; Demarco, F. F.
Materias: Acid Etching, Dental - methods ; Analysis of Variance ; bond strength ; Dental Bonding ; Dental Prosthesis Retention ; Dental Pulp Cavity - drug effects ; Dental Pulp Cavity - ultrastructure ; Dental Restoration Failure ; Dental Restoration, Permanent ; Dental Stress Analysis ; Dentin - drug effects ; Dentin - ultrastructure ; Dentistry ; Device Removal ; endodontic posts ; Epoxy Resins - pharmacology ; Gels ; Humans ; luting cements ; Phosphoric Acids - chemistry ; Post and Core Technique - instrumentation ; push-out ; Root Canal Filling Materials - pharmacology ; Root Canal Preparation - methods ; root dentine ; total-etching ; Viscosity
Es parte de: International endodontic journal, 2011-11, Vol.44 (11), p.1034-1040
Notas: istex:D4C98B9044EC27466DE6CC3C29D7879082A67256
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ArticleID:IEJ1918
ObjectType-Article-1
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Descripción: Salas MMS, Bocangel JS, Henn S, Pereira‐Cenci T, Cenci MS, Piva E, Demarco FF. Can viscosity of acid etchant influence the adhesion of fibre posts to root canal dentine? International Endodontic Journal, 44, 1034–1040, 2011. Aim To evaluate the influence of acid viscosity, endodontic sealer and root canal region on the push‐out bond strength of a glass fibre post. Methodology Seventy‐eight single‐rooted human teeth were selected (60 for push‐out and 18 for scanning electron microscopy characterization, SEM, n = 13 per group). The root canals were prepared with a step‐back technique and then filled with Endofill or AH Plus sealer. Teeth without root fillings were used as controls. The preparation of the post‐space was to a length of 11 mm using standardized rotary instruments. The root dentine was treated with 37% phosphoric acid (gel or liquid). The fibre posts (Reforpost) were silanized, and resin cement (Enforce) was used for luting procedures. Each root was cross‐sectioned, and samples from the cervical and apical regions were subjected to a push‐out bond strength test. Specimens from each group were sectioned longitudinally and subjected to SEM characterization for the dentine/cement/post interface. Statistical analysis for push‐out tests was carried out using factorial anova followed by Tukey’s test (P < 0.05). Results The three factors under evaluation (acid, endodontic sealer and region) and their interaction significantly influenced bond strength values (P < 0.05). In general, liquid phosphoric acid had significantly higher bond strength values in the apical region (P < 0.05), with hybrid layer formation, while endodontic sealers reduced bond strength values compared to the control (P < 0.05). Conclusion The use of a liquid acid etchant created higher bond strength values in the apical region.
Editor: Oxford, UK: Blackwell Publishing Ltd
Idioma: Inglés

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Can viscosity of acid etchant influence the adhesion of fibre posts to root canal dentine?

Salas, M. M. S. ; Bocangel, J. S. ; Henn, S. ; Pereira-Cenci, T. ; Cenci, M. S. ; Piva, E. ; Demarco, F. F.

Oxford, UK: Blackwell Publishing Ltd

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