Cilt:48 Sayı:02 (2021)

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https://dspace.ankara.edu.tr/handle/20.500.12575/77298

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Browsing Cilt:48 Sayı:02 (2021) by Author "Other"

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    Evaluation of undergraduate dental students' perspective on distance education model in the coronavirus (covid-19) pandemia
    (Ankara Üniversitesi Diş Hekimliği Fakültesi, 2021) Biltekin, Hatice; Other; Other
    Purpose:The aim of this study is to question and evaluate the perceptions of 3rd, 4thand 5thyear undergraduate dentalstudents towards distance education practices and the roles of faculty members in the implementation of educationduring the Covid-19 pandemic.Materials & Methods:An online survey was applied to 149 volunteers, consisting of 3rd, 4thand 5thyear undergraduatedental students. The survey composed of 12 questions about distance education and shared from "Google Forms"application. Data analysis was done with SPSS 22.0 Packet Data Program.Results:One hundred forty-nine undergraduate dental students, including 54 third-year students, 60 fourth-yearstudents and 35 fifth-year students, answered the survey on a voluntary basis. Upon this, each answer was examinedseparately, and efforts were made to reach conclusions about the distance education model. When results were evaluated,the majority of the students (40.9%) who participated in the survey reported that the distance education modelcontributed to the theoretical lessons, when adequacy of the practical training was assessed, it was concluded thatdistance education was "Absolutely Inadequate" at with a 79.9 percentageConclusion:As a result of the study, most of the students found the distance education model sufficient for theoreticalcourses, but insufficient for practical education and found traditional practical education more advantageous
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    The ınternal and marginal adaptation of zirconia based fixed dental prostheses in the posterior region
    (Ankara Üniversitesi Diş Hekimliği Fakültesi, 2021) Koçak Büyükdere, Ayşe; Other; Other
    Purpose: Long-term clinical success is closely related to the internal and marginal adaptation of the restorations. The purpose of this study was to evaluate the internal adaptation of zirconia-based fixed dental prostheses in the posterior region. Materials & Methods: Four-unit porcelain-fused to zirconia fixed dental prostheses were fabricated with CAD-CAM system in 20 patients. For the evaluation of the restorations’ internal fit, conventional silicone replicas were used with the optical microscope. The obtained silicone impression was cut to obtain two cross-sections from buccolingual and 3 from mesiodistal. Fifty different measurements were taken from every tooth by taking 10 from each cross- section; 2 from the margin, 6 from the axial surfaces and 2 from the occlusal by the optical microscope. Results: There were statistically significant differences in internal discrepancy in terms of area and tooth type. The average internal discrepancy on the axial surfaces of the molars was 142.39±47.42µm. In premolars, the mean was 139.53±46.80µm. The average of the internal discrepancy values obtained from occlusal surfaces of the molar teeth was 164.39±53.61µm, whereas the same average for the premolar teeth was 161.92±60.54µm. Conclusion: Within the limitations of this study, restorations fabricated by CAD/CAM and internal and marginal discrepancies were at clinically acceptable intervals