Oral Health and Dental Management

Marginal fit comparison of hip (hot isotatic pressed) zirconia copings fabricated with three different marginal finish lines

10^th Dentists and Prosthodontics Annual Meeting

June 27-28, 2016 New Orleans Louisiana, USA

Cumhur Korkmaz, Cumhur Sipahi, Arzu Atay and Aydin Gulses

Gulhane Military Medical Academy, Turkey
Ankara Mevki Military Hospital, Turkey

Scientific Tracks Abstracts: Oral Health Dent Manag

Abstract:

Objective: The purpose of this in-vitro study was to compare the marginal fit of hot isostatic pressed (HIP) zirconia copings fabricated 3 different marginal finish lines. Material & Methods: To simulate prepared teeth, 30 stainless steel core specimens were fabricated via CNC machining. Stainless steel specimens, which are 6 mm crown length, 1,2 mm finish lines width and 60-degree axial wall inclination angle, were prepared for comparison. These specimens were prepared and separated 3 different marginal finish lines as shoulder finish line (SHO), chamfer finish line (CHA), bevel finish line (BEV). 30 HIP (hot isostatic pressed) zirconia copings with 3 different finish lines configuration were fabricated with DCS Precident CAD-CAM System to fit onto stainless steel core specimens. Results: Marginal gap measurements were performed using a stereomicroscope with x150 magnification. Obtained data were analyzed with the SPSS 15.0 statistical software program. Kruskal-Wallis test was used to comparison of multiple groups. The average marginal gap values were obtained as follows, respectively: Group SHO/HIP (35.8±13.5μm) < Group CHA/HIP (44.3±13.3μm) < Group BEV/HIP (55.7±27.6μm). Statistically significant difference was found between groups with different finish line (p<0.001). Conclusion: The amount of marginal gap at hot isostatic pressed (HIP) zirconium frameworks has been affected by different finish line.

Biography :

Cumhur Korkmaz is currently working in Gülhane Military Medical Academy, Turkey. He is an Assistant Professor at Gata Haydarpasa Training Hospital and Assistant Professor of Prosthodontics at the G.A.T.A - Haydar Pasha Training and Research Hospital. Gülhane Military Medical Academy (GMMA) was founded on December 30, 1898 with the contributions of German physicians, Prof. R. Rieder, MD and Prof. G. Deycke, MD, as a modern hospital of the era under the name of Gülhane Military Practice School and Hospital in Istanbul.

Email: cmhkorkmaz@hotmail.com