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FARKLI SİSTEM VE MATERYALLERLE ÜRETİLEN ZİRKONYA ALT YAPILARIN KENAR UYUMLARININ KARŞILAŞTIRILMASI

Comparison of Marginal Fit of Zirconia Copings Produced by Different Systems and Materials

Journal Name:

  • İstanbul Üniversitesi Diş Hekimliği Fakültesi Dergisi

Publication Year:

  • 2013

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
Purpose: The aim of this study was to compare marginal fit of zirconia copings produced by different systems and materials. Material and Methods: Tooth preparation with circumferential shoulder was performed on maxillary premolar acrylic tooth model. Copings (n=10) were produced with 5 different system-zirconia blocks (Cerec-InCoris ZI, Everest-BioZH, Celay-In-Ceram Zirconia, Zirkonzahn-IceZirkon ve Lava-Frame Zirconia) on prepared tooth model. Metal copings (Ni-Cr) were used as a control group. Marginal discrepancy of copings were measued with a stereomicroscope. Statistical analysis was performed with One-way ANOVA and Bonferonni test (p<0.05). Results: Marginal discrepancy mean values of goups were listed from lowest to highest as: Lava< Cerec<Everest<Zirkonzahn<Celay<Metal casting. Ni-Cr group showed higher marginal discrepancy values compared with other systems and this difference was statistically significant (p<0.01). Mean values of Celay and Zirkonzahn groups were found to be statistically significantly higher than Cerec and Lava groups (p<0.05). Conclusion: Manufacturing technique and material were both found to be effective on marginal fit of zirconia copings.
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Abstract (Original Language): 
Amaç: Bu çalışmanın amacı farklı sistem ve zirkonya materyalleri kullanılarak üretilen kuron alt yapılarını kenar uyumu açısından karşılaştırmaktır. Gereç ve Yöntem: Akrilik üst küçük azı diş modeli üzerinde basamaklı diş preparasyonu yapıldı. Hazırlanan preparasyon üzerine beş farklı sistem-zirkonya esaslı blok (Cerec-InCoris ZI, Everest-BioZH, Celay-In-Ceram Zirconia, Zirkonzahn-IceZirkon ve Lava-Frame Zirconia) kullanılarak alt yapılar üretildi (n=10). Kontrol grubu olarak kıymetsiz metal alaşımından (Ni-Cr) elde edilen metal alt yapılar kullanıldı. Alt yapıların kenar açıklık değerleri stereomikroskop yardımıyla ölçüldü. Elde edilen verilerin istatistiksel analizi Tek-yönlü varyans analizi ve Bonferroni testi yardımıyla p<0.05 düzeyinde değerlendirildi. Bulgular: Kenar açıklığı değerleri en düşükten yükseğe göre Lava<Cerec<Everest<Zirkonzahn<C elay<Metal döküm şeklinde sıralandı. Ni-Cr grubunun ölçümleri; diğer tüm grupların alt yapı ölçümlerinden istatistiksel olarak anlamlı düzeyde yüksek bulundu (p<0.01). Celay ve Zirkonzahn gruplarının kenar açıklık ortalamasının, Cerec ve Lava gruplarından istatistiksel olarak anlamlı düzeyde yüksek olduğu tespit edildi (p<0.05). Sonuç: Hem üretim tekniği hem de kullanılan materyal alt yapının kenar uyumu üzerinde etkili bulundu.
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