TY  - JOUR
T1  - FARKLI KENAR BİTİM VE ALT YAPI DİZAYNLARININ ÇEŞİTLİ ZİRKONYUM ALT YAPILAR ÜZERİNDEKİ VENER PORSELENİN KIRILMA DİRENCİNE ETKİSİNİN İNCELENMESİ
AU  - Alkurt, Murat
AU  - Yeşil Duymuş, Zeynep
PY  - 2019
DA  - March
DO  - 10.17567/ataunidfd.448486
JF  - Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi
JO  - Ata Diş Hek Fak Derg
PB  - Ataturk University
WT  - DergiPark
SN  - 1300-9044
SP  - 268
EP  - 276
VL  - 29
IS  - 2
LA  - tr
AB  - Amaç: Bu çalışmada, kenar bitim ve alt yapı şekillerinin çeşitli zirkonyumalt yapılar üzerindeki vener porselenlerinin kırılma direncine etkisi in vitro olarak incelenmiştir.Gereç ve Yöntem: Örneklerin elde edileceği kesilmiş üst1. küçük azı dişini temsil eden güdükler;1. Güdük; 6 mm kuron boyu ve 60taper açısında 1 mm shoulder basamak ile anatomik oklüzal yüzeyli, 2. Güdük; 6mm kuron boyu ve 60 taper açısında 1 mm chamfer basamak ile anatomikoklüzal yüzeyli, 3. Güdük; 6 mm kuronboyu ve 60 taper açısında, 1 mm shoulder basamak ile düz oklüzalyüzeyli, 4. Güdük; 6 mm kuron boyu ve 60 taper açısında 1 mm chamferbasamak ile düz oklüzal yüzeyli olarak standardizasyonun sağlanması amacıylaCNC torna tezgahında hazırlanmıştır. Güdüklerden alınan ölçülerden 60 adet epoksi rezin güdük eldeedilmiştir. Zirkonyum alt yapılar farklı yöntemlerle hazırlandıktan sonra üstyapı porseleni uygulanarak kuronlar tamamlanmıştır. Kuronlar epoksi rezingüdükler üzerine simante edildikten sonra vener porselenlerinin kırılmadirençleri Universal test cihazında saptanmıştır.Bulgular: Veriler üç yönlü varyans analizi(ANOVA) ile değerlendirilmiştir. Kenar bitim şekli, alt yapı şekli ve materyallerin, materyaller ilealt yapı şekli, materyaller ile kenar bitim şekli arasındaki etkileşiminanlamlı olduğu, kenar bitim şekli ile alt yapı şekli, materyaller ile alt yapışekli ve kenar bitim şekli arasındaki etkileşimlerin ise anlamlı olmadığıistatistiksel olarak tespit edilmiştir.Sonuç: En yüksek vener porselen kırılma direnci değerlerinin alt yapısıanatomik şekilde hazırlanan chamfer basamaklı White Peaks kuronlarda, en düşükkırılma direnci değerlerinin ise alt yapısı düz şekilde hazırlanan chamferbasamaklı Lava kuronlarda olduğu görülmüştür.Anahtar Kelimeler: Alt yapı şekli, kenar bitim şekli,kırılma direnci, zirkonyum alt yapılar.Effect of different marginal finishlines and coping designs on the fracture resistance of veneering porcelain onvarious zirconia frameworks ABSTRACTAim: In this in vitro study, theeffect of finish line and coping design on the fracture resistance of veneerporcelains on the zirconia frameworks prepared through various methods wasanalyzed.Material and Methods: To standardization, the diesrepresenting the upper first premolar tooth were prepared in the CNC turningmachine as: the first die; with a 6 mm crown length and at 60 taperangle, having an anatomic occlusal surface with a 1 mm shoulder line, thesecond die; with a 6 mm crown length and at 60 taper angle, havingan anatomic occlusal surface with a 1 mm chamfer line, the third die; with a 6mm crown length and at 60 taper angle, having a flat occlusalsurface with a 1 mm shoulder line, and the fourth die; with a 6 mm crown lengthand at 60 taper angle, having a 1 mm chamfer line with a flatocclusal surface. 60 pieces of epoxy resin dies were obtained from themeasurements taken from the dies. Zirconia frameworks had been prepared throughdifferent methods, then crowns were completed by applying the body porcelain.After cementation the crowns on the epoxy resin dies, the fracture resistanceof veneer porcelains was measured by the Universal Test device.Results: Thedata were analyzed by three-way variance analysis (ANOVA). It was statisticallydetermined that the interaction between the finish line, coping design andmaterials; and the materials and coping design, and the finish line and thematerials. However; no significant interaction was observed between the finish lineand coping design; and the materials, coping design and the finish line.Conclusion: The highest fracture resistance valuesof veneer porcelain was seen in chamfer line White Peaks crowns preparedanatomically, whereas the framework of the lowest fracture resistance valueswas seen in the chamfer line Lava crowns.KeyWords: Coping design, finish lines, fracture resistance,zirconia frameworks
KW  - Alt yapı şekli
KW  - kenar bitim şekli
KW  - kırılma direnci
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UR  - https://doi.org/10.17567/ataunidfd.448486
L1  - https://dergipark.org.tr/en/download/article-file/514796
ER  -