Repair bond strength of resin composite to a novel CAD/CAM hybrid ceramic using different repair systems

Abstract

This study evaluated the repair bond strength of a nanohybrid resin composite to a novel CAD/CAM hybrid ceramic based on four intraoral ceramic repair systems. Vita Enamic (VE) CAD/CAM hybrid ceramic was used in this study. Specimens were divided into five test groups according to the repair method performed on the ceramic surface: Gr C (No treatment; control); Gr CZ (Cimara Zircon); Gr PR (Porcelain Repair); Gr CR (Clearfil Repair); and Gr CS (CoJet system). Nanohybrid resin composite (GrandioSO) was packed onto treated ceramic surfaces for adhesion testing using microtensile bond strength test. Debonded specimens were examined with a stereomicroscope and SEM to determine the fracture mode. Data were analyzed using ANOVA and Tukey's HSD test. PR and CZ repair systems significantly enhanced the bond strength of nanohybrid resin composite to VE CAD/CAM hybrid ceramic when compared with the other tested repair systems.

Effect of surface treatments on shear bond strength of resin composite bonded to CAD/CAM resin-ceramic hybrid materials

“…These methods are commonly used surface treatments during intraoral repair of ceramic restorations 1821. However, for CAD/CAM resin-ceramic hybrid materials, there is no agreement on the repair protocol that leads to favorable clinical outcome 713272829. These studies investigated an additional use of adhesive system to provide chemical bonding as well as mechanical pretreatment.…”

“…However, limited data have been published for CAD/CAM resin-ceramic hybrid materials 13272829. In the present study, Lava Ultimate showed a mean bond strength of 13.42 ± 0.55 MPa (ranging between 2.51-16.63) and Vita Enamic showed a mean bond strength of 17.52 ± 0.44 MPa (ranging between 13.95-21.73), the results which are in agreement with previous studies 13272829. For GC Cerasmart, however, no data have been published to date.…”

“…Thus, intraoral repair can be considered as an emergency treatment for localized fractures 1112. Furthermore, it represents a viable alternative to remake of a fractured all-ceramic restoration because the removal of the restoration is difficult and replacement is expensive for these restorations 121314151617. Surface treatment on the fractured ceramic surface must be performed in the repair procedure.…”

“…It can increase the surface energy for adhesive application 22. Although the intraoral repair process for ceramic restorations has been widely investigated in the literature,182123242526 limited information is available on the surface treatments and intraoral repair protocol for CAD/CAM resin-ceramic hybrid materials 1327. The aim of this in-vitro study is to evaluate the effect of surface treatments on SBS of resin composite bonded to thermocycled and non-thermocycled CAD/CAM resin-ceramic hybrid materials and to determine the effect of surface treatments on the surface roughness of these hybrid ceramics.…”

Farklı yüzey hazırlıklarının CAD/CAM hibrit seramiğin kompozit rezin ile tamirine etkisi

“…16 Yapılan literatür taramasında bu yeni nesil hibrit seramik materyalin birçok mekanik özelliği-nin incelenmesine rağmen, tamir başarısını değerlendi-ren sadece bir çalışma olduğu görülmektedir. 17 Bu çalışmanın amacı hibrit seramik bir materyal olan Vita Enamic'in 4 farklı yüzey hazırlığı yapılarak yaşlan-dırma sonrası kompozit rezin ile makaslama bağlantı dayanımını değerlendirmektir. Çalışmamızın sıfır hipotezi farklı yüzey hazırlıklarının hibrit seramik ile kompozit rezin bağlantısına etkisi yoktur olarak kurulmuştur.…”