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FARKLI YÜZEY İŞLEMLERİNÎN PORSELEN RESTORASYÖNLARIN OPTÎK ÖZELLİKLERÎNE ETKÎSİ

Effect of Different Surface Treatments on Optical Properties of Porcelain Restorations

Journal Name:

  • İstanbul Üniversitesi Diş Hekimliği Fakültesi Dergisi

Publication Year:

  • 2012

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
Purpose: The purpose of the study was to evaluate the effect of different porcelain surface treatments on optical properties of different porcelain systems. Material and methods: Totally 240 metal-based porcelains were made by 3 different porcelain systems with different thicknesses. Different surface treatments as natural glaze (N), glaze (G), porcelain polish (L), porcelain diamond paste (EP), porcelain polish and diamond paste (L)+(EP) were applied on porcelain surfaces. Color values (L*,a*,b*) were determined with a color measurement device. Statistical analyses were performed with ANOVA and Tukey HSD, and Paired Sample t-test (P<0.05). Results: Glaze, porcelain polish, porcelain diamond paste or porcelain polisher and diamond paste; that applied on porcelain surfaces affected the optical properties of porcelains but there were no significant differences were found between them. After surface treatments as the L* value increased, there were no significant differences between a* and b* values. Lightness of low fusing porcelain increased more, when compared with feldspatic porcelains. Conclusion: After porcelain surface treatments color changes was found as clinically imperceptible.
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Abstract (Original Language): 
Amaç: Çalışmanın amacı porselen yüzeyine uygulanan farklı bitirme tekniklerinin, farklı porselen sistemlerin optik özelliklerine etkisini değerlendirmektir. Gereç ve Yöntem: 3 farklı porselen sisteminden farklı kalınlıklarda toplam 240 adet metal destekli porselenler yapıldı. Örneklere natural glazür (N), glazür (G), porselen lastiği (L), porselen elmas patı (EP), porselen lastiği ve elmas pat (L)+(EP) yüzey işlemleri uygulandı. Örneklerin renk değerleri (L*,a*,b*) renk ölçüm cihazıyla belirlendi. İstatistiksel analizler ANOVA ve Tukey HSD, eşleştirilmiş iki grup t-test ile yapıldı (P<0.05). Bulgular: Porselen yüzeylerine glazür, seramik lastiği, elmas patı veya lastik ile birlikte elmas patı uygulama, porselenin optik özelliklerinde farklılıklar oluşturdu ancak birbiri aralarında anlamlı fark bulunamadı (P>0.05). Yüzey işlemleri sonrasında tüm porselen yüzeylerin L* değeri artarken, a* ve b* değerleri arasında anlamlı değişiklik bulanamadı. Düşük ısı porseleninin parlaklığı tüm yüzey işlemleri sonrasında, geleneksel porselenlere göre daha fazla arttı. Sonuç: Yüzey bitirme işlemleri sonrası porselen restorasyonlarda oluşan renk değişimi klinik olarak kabul edilebilir düzeydedir.
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