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Bond strength and nanoroughness assessment on human pretreated cementum surfaces

Toledano, M ; Osorio, E ; Aguilera, F.S ; Gomes, G ; Perdigão, J ; Osorio, R

Journal of dentistry, 2010-08, Vol.38 (8), p.678-685 [Periódico revisado por pares]

Kidlington: Elsevier Ltd

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Título:
Bond strength and nanoroughness assessment on human pretreated cementum surfaces
Autor: Toledano, M ; Osorio, E ; Aguilera, F.S ; Gomes, G ; Perdigão, J ; Osorio, R
Assuntos: Adhesion ; Adhesives ; AFM ; Biological and medical sciences ; Bond strength ; Cementum ; Collagen ; Curing ; Dental ; Dental Bonding - methods ; Dental Cementum ; Dental Etching - methods ; Dental Stress Analysis ; Dentistry ; Enamel ; Etching ; Head and neck surgery. Maxillofacial surgery. Dental surgery. Orthodontics ; Humans ; Hybridization ; Maxillofacial surgery. Dental surgery. Orthodontics ; Medical sciences ; Microscopy, Atomic Force ; Nanoroughness ; Phosphoric acid ; Resin Cements - chemistry ; Self-etching ; Surface ; Surface Properties ; Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases ; Technology. Biomaterials. Equipments ; Tensile Strength
É parte de: Journal of dentistry, 2010-08, Vol.38 (8), p.678-685
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Descrição: Abstract Objectives To determine the bond strength of seven adhesive systems to human cementum, and to assess the promoted surface roughness. Methods Extracted human canines were used for the present study. The mesial surface from the cervical third of the roots were ground flat with wet 600-grit silicon carbide paper and bonded. Seven adhesive systems were employed: an etch-and-rinse adhesive (Single Bond), two two-step self-etching (Clearfil SE Bond and Resulcin Aquaprime) and four one-step self-etching (One-up Bond F, Prompt-L-Pop, Etch and Prime 3.0 and NRC+Prime&Bond NT). Composite build-ups were constructed and stored in a humid environment for 24 h at 37 °C. Specimens were sectioned into 1 mm2 beams and tested for microtensile bond strength (MTBS). Additional surfaces were conditioned for atomic force microscopy (AFM) analysis. Results were analyzed with ANOVA and Student–Newman–Keuls tests ( P < 0.05). Results Single Bond showed the highest MTBS values. No differences were found between Resulcin Aquaprime, One-up Bond and Prompt-L-Pop. Clearfil SE Bond, Etch and Prime and NRC+Prime&Bond NT obtained the lowest bond strength values. H3 PO4 acid treatment of cementum and Resulcin Aquaprime showed the highest nanoroughness parameters and One-up Bond the lowest. Conclusion The etch-and-rinse adhesive and the two-step self-etching adhesive with the lowest pH value promoted the highest bond strength to human cementum surfaces.
Editor: Kidlington: Elsevier Ltd
Idioma: Inglês;Persa

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Bond strength and nanoroughness assessment on human pretreated cementum surfaces

Toledano, M ; Osorio, E ; Aguilera, F.S ; Gomes, G ; Perdigão, J ; Osorio, R

Kidlington: Elsevier Ltd

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