Effects of different surface treatments and accelerated artificial aging on the bond strength of composite resin repairs

Autor: Marcos Ribeiro Moysés, Marco Aurélio Veiga de Melo, Saulo Galvão dos Santos, Carlos Eduardo Pinto Alcântara, José Carlos Rabelo Ribeiro
Přispěvatelé: Universidade Vale do Rio Verde (UniCor) University Tr?s Cora??es Dental School Department of Restorative Dentistry, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM)
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: Brazilian Oral Research v.25 n.6 2011
Brazilian Oral Research
Sociedade Brasileira de Pesquisa Odontológica (SBPqO)
instacron:SBPQO
Brazilian Oral Research, Volume: 25, Issue: 6, Pages: 485-491, Published: DEC 2011
Brazilian Oral Research, Vol 25, Iss 6, Pp 485-491 (2011)
SciELO
Repositório Institucional da UFVJM
Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM)
instacron:UFVJM
ISSN: 1806-8324
Popis: Submitted by repositorio ufvjm (repositorio@ufvjm.edu.br) on 2017-02-06T11:37:11Z No. of bitstreams: 2 S1806-83242011000600003.pdf: 2310015 bytes, checksum: b97f8543434f6258ebc8a4a35906e3e3 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2017-03-06T16:48:26Z (GMT) No. of bitstreams: 2 license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) S1806-83242011000600003.pdf: 2310015 bytes, checksum: b97f8543434f6258ebc8a4a35906e3e3 (MD5) Made available in DSpace on 2017-03-06T16:48:26Z (GMT). No. of bitstreams: 2 license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) S1806-83242011000600003.pdf: 2310015 bytes, checksum: b97f8543434f6258ebc8a4a35906e3e3 (MD5) Previous issue date: 2011-12-01 Funda??o de Amparo ? Pesquisa do Estado de Minas Gerais (FAPEMIG) Empresa de Pesquisa Agropecu?ria de Minas Gerais (EPAMIG) Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) The purpose of the present study was to assess the bond strength of composite resin repairs subjected to different surface treatments and accelerated artificial aging. 192 cylindrical samples (CSs) were prepared and divided into 24 groups (n = 8). Half of the CSs were stored in water for 24 h, and the other half were subjected to C-UV accelerated aging for non-metallic specimens. The treatments were phosphoric acid + silane + adhesive (PSA); phosphoric acid + adhesive (PA); diamond bur + phosphoric acid + silane + adhesive (DPSA); diamond bur + phosphoric acid + adhesive (DPA); air abrasion + phosphoric acid + silane + adhesive (APSA); and air abrasion + phosphoric acid + adhesive (APA). The repair was performed and the specimens were again aged as described above. A control group (n = 8) was established and did not receive any type of aging or surface treatment. The specimens were loaded to failure in shear mode with a crosshead speed of 0.5 mm/min until fracture. Data were analyzed by one-way ANOVA/Tukey's test (p < 0.05). No statistically significant differences were found among DPSA, DPA, APSA, APA, and the control group. The aged PSA and PA achieved low bonding values and were statistically different from the control group, whereas the non-aged PSA and PA presented no statistically significant difference from the control group. Repairs with the proposed surface treatments were viable on both recent and aged restorations; however, phosphoric acid + adhesive alone were effective only on recent restorations.
Databáze: OpenAIRE
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