Evaluation of Marginal Adaptation of Metal Ceramic Crown with Different Luting Cement

M. Al-Shakir, Nadia

	Evaluation of Marginal Adaptation of Metal Ceramic Crown with Different Luting Cement
Tikrit Journal for Dental Sciences
Article 1, Volume 2, Issue 2, 2013, Pages 117-122
Author
Nadia M. Al-Shakir
Abstract
The study aims to evaluate and compare the microleakage of three different luting materials. The materials compared are Zinc phosphate cement, Variolink II Refill and Glass ionomer resin cement. Eighteen recently extracted caries-free wisdom teeth were used . The teeth were cleaned then stored in distilled water until use. The molars were assigned randomly into three groups of 6 teeth of each . The metal ceramic crowns were constructed by means of an indirect laboratory technique. In group A, the crowns were cemented with a traditional Zinc Phosphate. In group B, the tooth preparations were sealed with Variolink II Refill. In group C, the tooth preparations were sealed with glass ionomer resin cement prior to cementation with the crowns. The results showed higher value of microleakage for Zinc phosphate cement. While the least value was for the Variolink II . The value for Glass ionomer resin cement was low. Statistically analysis revealed difference between the Zinc phosphate cement ,Variolink II and Glass ionomer resin cement in microleakage. There was no significant difference in microleakage between Variolink II and Glass ionomer resin cement. This may indicated that the degree of microleakage may influenced by the type of the luting system used.
Keywords
Microleakage; luting cement; variolink ii; glass ionomer cement

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