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2011, Number 2

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Rev Odont Mex 2011; 15 (2)

Marginal adaptation and microleakage comparison between two zirconia oxide systems with the same cement

Juárez GA, Barceló SF, Ríos SE

Language: Spanish
References: 24
Page: 103-108
PDF size: 312.78 Kb.


ABSTRACT

Purpose: Compare the marginal adaptation and microleakage between LavaTM and Zirkon zahn® with one cement. Material and methods: Twenty superior extracted premolars were divided into two groups. Teeth in group one were prepared to receive LavaTM copings and the other group for Zirkon zahn®. They were made following standard techniques of each system. The marginal fit in µm was measured in eight zones before and after cementation with RelyXTMU100. After thermocycling, specimens were placed in fuchsin dye solution 2% and sectioned buccolingually to measure microleakage in µm in buccal and lingual section. Results: There was statistically significant difference in the marginal adaptation between the two zirconia systems. The system that reported the best marginal adaptation was LavaTM 19.7 µm and 15 µm before and after cementation. The system with the worst marginal adaptation was Zirkon zahn® with 28.1 µm and 22.8 µm before and after cementation. There was no significant difference in microleakage, the average for LavaTM was 314.2 µm and Zirkon zahn® 319.8 µm. Conclusion: The system that reported the best marginal adaptation, with a statistically significant difference was LavaTM, so the system with the worst marginal adaptation was Zirkon zahn®. There was no significantly difference in microleakage between these two systems.


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