EVALUATION OF INTERNAL ADAPTATION OF FULL CONTOUR ZIRCONIA CROWNS VERSUS VENEERED ZIRCONIA CROWNS – IN VITRO STUDY | ||||
| Egyptian Dental Journal | ||||
| Article 15, Volume 62, Issue 1 - January (Part 3), January 2016, Page 717-719 PDF (172.38 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/edj.2016.95092 | ||||
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| Authors | ||||
| Abdulsattar Hasan Al-baadani1; Rana Mahmoud Sherief2; Ashraf Taher Kheireldean2 | ||||
| 1B.D.S., Master Degree in Fixed Prosthodontics, Faculty of Oral and Dental Medicine, Cairo University, Egypt | ||||
| 2Assistant Professor of Fixed Prosthodontics, Faculty of Oral and Dental Medicine, Cairo University | ||||
| Abstract | ||||
| Purpose: To evaluate the internal adaptation of full contour zirconia crowns to veneered zirconia with two different finish line designs (shoulder and deep chamfer). Materials and Methods: Twenty four dies were received twelve full contour zirconia crowns (Prettau) and twelve veneered zirconia crowns (ICE Zirconia). Each group will be subdivided into two equally subgroups: with Shoulder finish line and with Deep chamfer finish line. Measurements of internal fitness were recorded Results: The lowest overall mean value of internal adaptation was recorded with Ice zirconia crowns with deep chamfer finish line design (74.6µm ± 19.14), then with shoulder finish line design (93.40 µm ± 9.99), followed by Prettau zirconia crowns with deep chamfer finish line design (157µm ± 27.25) and finally Prettau zirconia crowns with shoulder finish line design (181µm ± 24.86). Conclusions: The ice zirconia crowns recorded better overall internal adaptation values than Prettau crowns with both finish line designs. | ||||
| Keywords | ||||
| Internal Adaptation; fit; full contour | ||||
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