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All Journal Indian Journal of Forensic Medicine & Toxicology
Sara AbdulBasit Turky AL-Bayat BSc1, Amal Abudl Latif MSc1, Abdulla M.W. Al-Shamma2
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Effect of Different Die Materials on the Marginal Fit of CAD/ CAM crowns pre and pos -cementation Sara AbdulBasit Turky AL-Bayat BSc1, Amal Abudl Latif MSc1, Abdulla M.W. Al-Shamma2
Indian Journal of Forensic Medicine & Toxicology Vol. 14 No. 2 (2020): Indian Journal of Forensic Medicine & Toxicology
Publisher : Institute of Medico-legal Publications Pvt Ltd

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37506/ijfmt.v14i2.3400

Abstract

Theobjective of this in vitro study was to evaluate the vertical marginalgap pre and post-cementation ofIPS e.Max CAD crowns constructed using different die materials. Materials and method:Thethirty standard aluminum dies were fabricated to receive a full contour IPS e.Max CAD crowns.An impression with two-stage putty-wash impression with spacer technique was taken.The thirty impressions were distributed into three groups;as follows; Group (A) Ten impressions were poured with type IV die stone,Group (B)Ten impressions were poured with type V die stone and Group (C)Tenimpressions were poured with Exacto-form model resin die material.Each die was scanned and IPS e.Max CAD full contour crown was fabricatedusing Sirona CEREC in-Lab CAD/CAM System. Sixteen gap measurements were taken for each sample (Buccal, Mesial, Lingual and Distal), Pre and postcementation process were measured using a digital microscope.The results of this study showed that there and post-cementation procedure.From the results of this study,it could be concluded that the Exacto-form provided the least vertical gap, when used IPS e.Max CAD full contour restorations. Die stone type V could be the next choice, which is preferred over to die stone type IV.cementation step incressed the marginaly
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