american-dental-congress-2016_scientifictracks-abstracts

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Volume 6, Issue 12(Suppl) Dentistry
ISSN: 2161-1122, an open access journal
Page 41
Notes:
American Dental Congress 2016
December 08-10, 2016
conferenceseries.com
19th American Dental Congress
December 08-10, 2016 Phoenix, USA
Comparison of marginal fit of zirconia copings manufactured with the use of two CAD/CAM systems
Cerec InLab (Sirona®) CAD/CAM Zirkonzahn (Zirkonzahn®) and Zirkograph 025 ECO pantographic
system (manual milling system) (Zirkonzahn®)
Maria Jose Jimenez Suarez
New York University College of Dentistry, USA
The aim of the study was to compare the marginal fit of zirconia copings fabricated with two different CAD/CAM systems: Cerec
InLab (Sirona®) and Zirkonzahn (Zirkonzahn®) with a pantograph system Zirkograph 025 ECO (Zirkonzahn®).
Material andmethods: Cr-Co master model with a zirconia crown preparation of an upper premolar was manufactured. Ten zirconia
copings were fabricated for each group following manufacturer’s instructions. Control group consisted of ten metallic copings. A
replica technique was used with elite HD+ polyvinyl siloxane (Zhermack®). Measurements were taken using a stereomicroscope
at 50x magnification to determine the absolute marginal discrepancy and marginal width of each coping. Statistical analysis was
conducted using IBM SPSS® software. T-test study was conducted in order to compare obtained data. Results showed that the mean
marginal absolute discrepancy and marginal width were: 92.14±38.59 and 78.62±31.33 μm for Cerec InLab (Sirona®) CAD/CAM
system, 38.71±12.62 and 36.91±13.56 μm for Zirkonzahn (Zirkonzahn®) CAD/CAM system, 77.92±38.01 and 69.42±33.23 μm for
Zirkograph 025 ECO (Zirkonzahn®) pantograph system. Control group exhibited 44.11 ± 15.36 and 43.74±15.70 μm. With respect
to absolute marginal discrepancy and marginal width, statistical significant differences were observed when comparing Cerec InLab
(Sirona®) and Zirkograph 025 ECO (Zirkonzahn®) with control group. No statistical significant differences were observed between
Zirkonzahn (Zirkonzahn®) CAD/CAM and the control group. Overall level of statistical significance was p>0.001. It can be concluded
that Zirkonzahn® CAD/CAM system was the most accurate system of all. CAD/CAM Cerec InLab system (Sirona®) proved to be the
less precise system.
Biography
Maria Jose Jimenez Suarez has graduated as a Dentist from the Universidad San Francisco de Quito in Ecuador. She has published her original research study in “Revista
Odontologica Mexicana”. She has worked with the intraoral scanner Trios 3SHAPE® and software in fixed prosthesis fabrication using CAD/CAM systems. She is currently
attending Advanced Education Program in Prosthodontics at New York University College of Dentistry.
Maria Jose Jimenez Suarez, Dentistry 2016, 6:12(Suppl)