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Effect of surface treatments on the bond strength of a resin cement to commercially pure titanium
Almeida-Júnior, Antonio Alves de; Fonseca, Renata Garcia; Haneda, Isabella Gagliardi; Abi-Rached, Filipe de Oliveira; Adabo, Gelson Luis.
  • Almeida-Júnior, Antonio Alves de; São Paulo State University,. Araraquara Dental School. Department of Dental Materials and Prosthodontics. Araraquara. BR
  • Fonseca, Renata Garcia; São Paulo State University,. Araraquara Dental School. Department of Dental Materials and Prosthodontics. Araraquara. BR
  • Haneda, Isabella Gagliardi; São Paulo State University,. Araraquara Dental School. Department of Dental Materials and Prosthodontics. Araraquara. BR
  • Abi-Rached, Filipe de Oliveira; São Paulo State University,. Araraquara Dental School. Department of Dental Materials and Prosthodontics. Araraquara. BR
  • Adabo, Gelson Luis; São Paulo State University,. Araraquara Dental School. Department of Dental Materials and Prosthodontics. Araraquara. BR
Braz. dent. j ; 21(2): 111-116, 2010. ilus, tab
Article in English | LILACS | ID: lil-551930
ABSTRACT
Investigation of the effectiveness of surface treatments that promote a strong bond strength of resin cements to metals can contribute significantly to the longevity of metal-ceramic restorations. This study evaluated the effect of surface treatments on the shear bond strength (SBS) of a resin cement to commercially pure titanium (CP Ti). Ninety cast CP Ti discs were divided into 3 groups (n=30), which received one of the following airborne-particle abrasion conditions (1) 50 ?m Al2O3 particles; (2) 30 ?m silica-modified Al2O3 particles (Cojet Sand); (3) 110 ?m silica-modified Al2O3 particles (Rocatec). For each airborne-particle abrasion condition, the following post-airborne-particle abrasion treatments were used (n=10) (1) none; (2) adhesive Adper Single Bond 2; (3) silane RelyX Ceramic Primer. RelyX ARC resin cement was bonded to CP Ti surfaces. All specimens were thermally cycled before being tested in shear mode. Failure mode was determined. The best association was Rocatec plus silane. All groups showed 100 percent adhesive failure. There were combinations that promote higher SBS than the protocol recommended by the manufacturer of RelyX ARC.
RESUMO
A investigação da eficácia de tratamentos de superfície que promovem uma forte resistência de união de cimentos resinosos aos metais pode contribuir significantemente para a longevidade das restaurações metalocerâmicas. Este estudo avaliou o efeito de tratamentos de superfície na resistência ao cisalhamento da união de um cimento resinoso ao titânio comercialmente puro (Ti cp). Noventa discos foram fundidos em Ti cp e divididos em 3 grupos (n=30), os quais receberam uma das seguintes condições de jateamento (1) partículas de Al2O3 de 50 ?m; (2) partículas de Al2O3 modificadas por sílica de 30 ?m (Cojet Sand); (3) partículas de Al2O3 modificadas por sílica de 110 ?m (Rocatec). Para cada condição de jateamento, os seguintes tratamentos pós-jateamento foram utilizados (n=10) (1) nenhum; (2) adesivo Adper Single Bond 2; (3) silano RelyX Ceramic Primer. O cimento resinoso RelyX ARC foi aplicado à superfície do Ti cp. Todos os espécimes foram termociclados antes do ensaio de cisalhamento. O modo de fratura também foi determinado. A melhor associação foi o Rocatec mais silano. Todos os grupos apresentaram 100 por cento de falha adesiva. Houve combinações que promoveram maior resistência ao cisalhamento da união que aquela recomendada pelo fabricante do RelyX ARC.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Titanium / Dental Bonding / Resin Cements / Dental Restoration Failure / Air Abrasion, Dental Type of study: Practice guideline Limits: Humans Language: English Journal: Braz. dent. j Journal subject: Dentistry Year: 2010 Type: Article / Project document Affiliation country: Brazil Institution/Affiliation country: São Paulo State University,/BR

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Full text: Available Index: LILACS (Americas) Main subject: Titanium / Dental Bonding / Resin Cements / Dental Restoration Failure / Air Abrasion, Dental Type of study: Practice guideline Limits: Humans Language: English Journal: Braz. dent. j Journal subject: Dentistry Year: 2010 Type: Article / Project document Affiliation country: Brazil Institution/Affiliation country: São Paulo State University,/BR