Int J Stomatol

Inter J Stomatol ›› 2013, Vol. 40 ›› Issue (3): 305-308.doi: 10.7518/gjkq.2013.03.007

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Study of bonding property among 3 kinds of resin-reinforced glass ionomer and zirconia ceramics

Lin Yihua1, Song Xiaomeng2, Zhang Wei3   

  1. 1. Dept. of Stomatology, The Chinese Medicine Hospital of Xiangshan in Zhejiang Province, Ningbo 315700, China; 2. Dept. of Oral and Maxillofacial Surgery, Stomatological Hospital of Jiangsu Province, Institute of Stomatology of Nanjing Medical University, Nanjing 210029, China; 3. Dept. of Oral Special Consultation, Stomatological Hospital of Jiangsu Province, Institute of Stomatology of Nanjing Medical University, Nanjing 210029, China
  • Received:2012-07-23 Revised:2013-01-29 Online:2013-05-01 Published:2013-05-01

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Abstract:

Objective To study the bonding efficiency of zirconia ceramics with 3 kinds of resin-reinforced glass ionomer. Methods Blocks of sintered zirconia ceramics were cut and randomly divided into 3 groups with 20 slices each. They were treated with sandblasting and bonded with 3 kinds of resin-reinforced glass ionomer respectively. After preserved in distilled-water for 24 hours and aged by thermocycling 5 000 times, the shear bond strength of these specimens was tested and data were analyzed by SPSS 11.5 system for windows. The bonding face was observed by scanning electron microscope. Results The shear bond strength of the ceramic and 3 kinds of resin-reinforced glass ionomer was （15.1±3.2）, （16.1±4.0）, （18.6±3.4）MPa（after preserved in distilled-water for 24 hours） respectively, and decreased greatly to （5.1±2.1）, （7.5±2.9）, （8.7±2.6）MPa（after thermocycling 5 000 times）. There was obvious statistical difference before and after thermocycling（P<0.05）. Conclusion Resin-reinforced glass ionomer can get good initial bond strength with zirconia ceramics, but the bonding durability is poor.

Key words: resin-reinforced glass ionomer, zirconia ceramics, shear bond strength, bonding durability


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