期刊论文详细信息
Brazilian Journal of Oral Sciences
Do metal alloy primers increase the bond strength of orthodontic tubes?
Keity Cristina Moreira deOliveira1  Flávia Lucisano Botelho doAmaral1  Cecília PedrosoTurssi1  VanessaCavalli2  Daylana Pacheco daSilva2 
[1] Institute and Research Center São Leopoldo Mandic;University of Campinas;
关键词: Shear strength;    Dental bonding;    Materials testing;    Alloys;    Orthodontics.;   
DOI  :  10.20396/bjos.v18i0.8657247
来源: DOAJ
【 摘 要 】

Aim: To evaluate the bond strength (BS) and failure mode of orthodontic tubes treated with different alloy primers at the interface among enamel, resin and orthodontic tubes. Methods: Orthodontic tubes were bonded to the enamel of 80 bovine incisors with the orthodontic resin (Transbond XT, 3M Unitek). Prior to bonding, the tubes were chemically treated with (n=20) Metal/Zirconia Primer (MZ, Ivoclar), Scothbond Universal (SB, 3M Espe); Orthoprimer (OP, Morelli) or left untreated (Control - C). Specimens were submitted to 5,000 thermal cycles (5 and 55o C) to age the bonded interface. A shear BS test and failure modes were conducted, and the results were analyzed using one-way analysis of variance and Fisher’s exact test, respectively. Results: No differences were observed among groups regardless of the type of alloy primer used (p = 0.254). However, no differences were observed among the failure modes of the groups tested (p=0.694). The adhesive failure mode between the resin and enamel was the most prevalent failure (45%) for groups OP and C, whereas cohesive failure in the orthodontic resin was the most prevalent failure (40%) for groups SB and MZ. Conclusion: Alloy primers were unable to increase the BS of the orthodontic tubes to enamel.

【 授权许可】

Unknown   

  文献评价指标  
  下载次数:0次 浏览次数:1次