Immediate and Tate Repair of Microhybrid Resin Composites: Effect of Silane Coupling Agent, Universal Adhesives and Photo Polymerization


UĞURLU M., Husain N. A., Ozcan M.

EUROPEAN JOURNAL OF PROSTHODONTICS AND RESTORATIVE DENTISTRY, 2022 (ESCI) identifier identifier

  • Publication Type: Article / Article
  • Publication Date: 2022
  • Doi Number: 10.1922/ejprd_2427ugurlu10
  • Journal Name: EUROPEAN JOURNAL OF PROSTHODONTICS AND RESTORATIVE DENTISTRY
  • Journal Indexes: Emerging Sources Citation Index (ESCI), Scopus, CINAHL, EMBASE
  • Keywords: Adhesion, Photo-polymerization, Resin Composite, Repair, Silane Coupling Agents, Universal Adhesive, BOND STRENGTH, SURFACE TREATMENTS, LIGHT, RESTORATIONS, DURABILITY, BENEFIT, WATER
  • Süleyman Demirel University Affiliated: Yes

Abstract

This study investigated the effect of silane coupling agent and universal adhesive application on repair bond strength of resin-based composite after bur grinding. Micro-hybrid resin composite (Charisma Smart) blocks (N=80; 8x8x4 mm3) were prepared, aged (37 degrees C; 1 month), roughened, etched and randomly divided into two groups. Silane was applied to half of the groups (Porcelain Primer, Bisco), before one of the following universal primers/adhesives was applied: a) Scotchbond Universal (3M), b) All-Bond Universal (Bisco), c) G-Premio Bond (GC), and d) Clearfil SE Bond (Kuraray). In each adhesive group half of the group was photo-polymerized. The blocks were repaired with the same size resin composite and segmented into beams. Half of the beams were subjected to micro-tensile bond test (1 mm/min), while the other half was aged (37 degrees C; 6 months) prior to testing. Failure modes were analyzed using Scanning Electron Microscopy (SEM). Data were analyzed using repeated measures of ANOVA, Tukey's post-hoc, and paired t-tests (alpha=0.05). The silane application did not affect the repair bond strength regardless of photo-polymerization of the adhesive resin. The repair bond strength decreased significantly after 6 months when adhesive resin was not photo-polymerized (p<0.05). Photo-polymerizing universal adhesives might ensure higher repair bond strength and its maintenance after aging.