Repair bond strength of nanohybrid composite resins with a universal adhesive

Objective: To investigate the repair bond strength of fresh and aged nanohybrid and hybrid composite resins using a universal adhesive (UA). Materials and methods: Fresh and aged substrates were prepared using two nanohybrid (Venus Pearl, Heraus Kulzer; Filtek Supreme XTE, 3 M ESPE) and one hybrid (...

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Main Authors: Pinar Altinci (Author), Murat Mutluay (Author), Arzu Tezvergil-Mutluay (Author)
Format: Book
Published: Medical Journals Sweden, 2018-01-01T00:00:00Z.
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042 |a dc 
100 1 0 |a Pinar Altinci  |e author 
700 1 0 |a Murat Mutluay  |e author 
700 1 0 |a Arzu Tezvergil-Mutluay  |e author 
245 0 0 |a Repair bond strength of nanohybrid composite resins with a universal adhesive 
260 |b Medical Journals Sweden,   |c 2018-01-01T00:00:00Z. 
500 |a 2333-7931 
500 |a 10.1080/23337931.2017.1412262 
520 |a Objective: To investigate the repair bond strength of fresh and aged nanohybrid and hybrid composite resins using a universal adhesive (UA). Materials and methods: Fresh and aged substrates were prepared using two nanohybrid (Venus Pearl, Heraus Kulzer; Filtek Supreme XTE, 3 M ESPE) and one hybrid (Z100, 3 M ESPE) composite resin, and randomly assigned to different surface treatments: (1) no treatment (control), (2) surface roughening with 320-grit (SR), (3) SR + UA (iBOND, Heraus Kulzer), (4) SR + Silane (Signum, Ceramic Bond I, Heraeus Kulzer) + UA, (5) SR + Sandblasting (CoJet, 3 M ESPE) + Silane + UA. After surface treatment, fresh composite resin was added to the substrates at 2 mm layer increments to a height of 5 mm, and light cured. Restored specimens were water-stored for 24 h and sectioned to obtain 1.0 × 1.0 mm beams (n = 12), and were either water-stored for 24 h at 37 °C, or water-stored for 24 h, and then thermocycled for 6000 cycles before microtensile bond strength (µTBS) testing. Data were analyzed with ANOVA and Tukey's HSD tests (p = .05). Results: Combined treatment of SR, sandblasting, silane and UA provided repair bond strength values comparable to the cohesive strength of each tested resin material (p < .05). Thermocycling significantly reduced the cohesive strength of the composite resins upto 65% (p < .05). Repair bond strengths of UA-treated groups were more stable under thermocycling. Conclusions: Universal adhesive application is a reliable method for composite repair. Sandblasting and silane application slightly increases the repair strength for all substrate types. 
546 |a EN 
690 |a Aged substrate 
690 |a composite repair 
690 |a nanohybrid composite 
690 |a universal adhesive 
690 |a Dentistry 
690 |a RK1-715 
655 7 |a article  |2 local 
786 0 |n Acta Biomaterialia Odontologica Scandinavica, Vol 4, Iss 1, Pp 10-19 (2018) 
787 0 |n http://dx.doi.org/10.1080/23337931.2017.1412262 
787 0 |n https://doaj.org/toc/2333-7931 
856 4 1 |u https://doaj.org/article/f9ce9f16ea9e402ea7be50dfa1c9ebd2  |z Connect to this object online.