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Volume 25 , Issue 3
May/June 2012

Pages 262-264

Internal and Marginal Adaptation of Pressable and Computer-Aided Design/Computer-Assisted Manufacture Onlay Restorations

Burçin Akoglu Vanlıoglu/Buket Evren/Coskun Yıldız/Altay Uludamar/Yasemin Kulak Özkan

PMID: 22545256

The aim of this research was to evaluate internal and marginal adaptation of lithium disilicate partial crowns fabricated using IPS e.max Press and IPS e.max CAD systems. Forty maxillary first molars were divided into two groups. The margins were located above the cementoenamel junction mesially and below it distally. The adaptation of the restoration was evaluated by means of the silicone replica technique. The lowest marginal discrepancy was measured between the preparation margin on the enamel and the IPS e.max Press specimens; the highest discrepancy was observed on the occlusal surface of the IPS e.max CAD specimens. Both systems tested demonstrated acceptable marginal discrepancies in vitro. Int J Prosthodont 2012;25:262–264.

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