Comparative Shear-Bond Strength of Six Dental Self-Adhesive Resin Cements to Zirconia

Materials

卷:8

Ji-Hyeon Bae¹  Jung-Bo Huh¹  Jae-Won Choi¹  Si-Eun Lee¹  Mi-Jung Yoon¹  Chang-Mo Jeong¹  Yong-Chan Jeon¹ 

[1] Department of Prosthodontics, Dental Research Institute, Biomedical Research Institute,School of Dentistry, Pusan National University, Yangsan, Gyeongnam 626-770, Korea;

关键词: self-adhesive cements;    zirconia;    shear bond strength;    no pretreatment;   

DOI  :  10.3390/ma8063306

来源: DOAJ

【 摘 要 】

This study compared shear bond strength (SBS) of six self-adhesive resin cements (SARC) and one resin-modified glass ionomer cement (RMGIC) to zirconia before and after thermocycling. The cylinder shape (Φ 2.35 mm × 3 mm) of six SARCs (G-CEM LinkAce (GLA), Maxcem Elite (MAX), Clearfil SA Luting (CSL), PermaCem 2.0 (PM2), Rely-X U200 (RXU), Smartcem 2 (SC2)) were bonded to the top surface of the zirconia specimens with light-curing. RMGIC (Fujicem (FJC)) was bonded to the specimens with self-curing. The shear bond strength of all cemented specimens was measured with universal testing machine. Half of the specimens were thermocycled5000 times before shear bonding strength testing. Fractured surfaces were examined with a field-emission SEM (10,000×) and analyzed by energy dispersive x-ray analysis. MAX, PM2, SC2 group without thermocycling and GLA, MAX, PM2 group with thermocycling showed adhesive failure, but GLA, CSL, RXU, FJC group without thermocycling and SLC, RXU, SC2, FJC group with thermocycling indicated cohesive failure. Within the limitation of this study, All of SARCs except MAX demonstrated higher bond strength than that of RMGIC regardless of thermocycling. Also, SARC containing MDP monomers (CSL) retained better bonds than other cements.

【 授权许可】

Unknown