Effects of different surface treatments and binders on the bonding strength of zirconia crowns
10.3969/j.issn.2095-4344.2017.34.008
- VernacularTitle:不同表面处理方式和不同粘结剂对氧化锆全瓷冠粘结强度的影响
- Author:
jie Jing QIN
1
;
yu Xiang ZHENG
;
Rui LI
Author Information
1. 天津市黄河医院
- From:
Chinese Journal of Tissue Engineering Research
2017;21(34):5455-5459
- CountryChina
- Language:Chinese
-
Abstract:
BACKGROUND: Zirconia all-ceramic restorations have been widely used in the repair of various complicated dental or dentition defects. Considering its surface chemical inertness, zirconia bonding is extremely crucial for the clinical practice of zirconia all-ceramic restorations. Currently, there are a variety of clinically selectable bonding materials and surface treatments for dental restorations. OBJECTIVE: To study the effects of different surface treatments and binders on the bonding performance of zirconia. METHODS: Zirconia tiles with different diameters were made and randomly divided into 16 groups (n=30 per group). Super-Bond C & B, polycarboxylic acid zinc binder, Panavia F resin cements and Fuji I of glass ionomer cements were selected. The surface of zirconia was treated by four different methods, including grinding, sand blasting, silane treatment and sand blasting plus silane treatment. Zirconia tiles were bonded by different binders, placed into static distilled at 37 ℃ for 24 hours, and then the shear bond strength was detected using a universal testing machine. RESULTS AND CONCLUSION: (1) With the use of the same binder, four surface treatments showed different effects on the bonding strength (P < 0.05), and the strongest bonding strength appeared after sandblasting plus silane treatment on the zirconia surface. (2) With the use of the same surface treatment, different binders showed different effects on the bonding strength (P < 0.05). Super-Bond C & B binder exhibited the best bonding effect, followed by Panavia F resin cements and Fuji I of glass ionomer cements, and polycarboxylic acid zinc binder showed the worst bonding effect. To conclude, these four surface treatments can all enhance the bonding strength to a certain extent, and Super-Bond C & B binder with sandblasting and silane treatment can achieve the highest bonding strength on the zirconia surface.
