Effect of glass-infiltration treatments on the shear bond strength between zirconia and ultra low-fusing porcelain veneer.
10.4047/jkap.2018.56.4.269
- Author:
Eun Kyung YIM
1
;
Sang Won PARK
Author Information
1. Department of Prosthodontics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea. psw320@jnu.ac.kr
- Publication Type:Original Article
- Keywords:
Glass infiltrated zirconia;
Ultra low-fusing porcelain;
Sandblasting;
Shear bond strength;
Failure pattern
- MeSH:
Dental Porcelain*;
Glass;
Spectrometry, X-Ray Emission
- From:The Journal of Korean Academy of Prosthodontics
2018;56(4):269-277
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: This study examined the effects of glass infiltration treatments on the shear bond strength (SBS) between zirconia core and ultra low-fusing porcelain veneer. MATERIALS AND METHODS: The zirconia specimens were classified into 4 groups (n = 12): Untreated zirconia (group Z), zirconia coated ZirLiner (group ZL), glass-infiltrated zirconia (group ZG), glass-infiltrated and sandblasted zirconia (group ZGS). A cylinder of ultra low-fusing veneer porcelain was build up on each disk (6 mm × 3 mm). SBS was measured using a universal testing machine. Scanning electron microscope and Energy Dispersive X-ray spectroscopy were used to evaluate the surface of zirconia and failure pattern after SBS. RESULTS: SBS value of group ZGS was significantly lower than that of other groups (P < .05). No significant differences were detected among group ZL, group Z and group ZG. CONCLUSION: Glass infiltration is not effective to the bond strength between zirconia and ultra low-fusing porcelain veneer. Sandblasting also dramatically decreased the bonding strength.
