Yapay Yaşlandırma İşleminin Monolitik Zirkonyaların Renk Stabilitesi ve Translusensi Özelliklerine Etkileri

Year 2025, Volume: 12 Issue: 1, 48 - 53, 21.04.2025

Arzu Zeynep Yıldırım , Aziz Sönmez , Zeynep Yağmur Karagülleoğlu , Ayşe Nurcan Duman

https://doi.org/10.15311/selcukdentj.1455392

Abstract

Amaç: Çalışmanın amacı monolitik zirkonyaların optik özellikleri üzerine yaşlandırmanın ve polisajın etkisinin değerlendirilmesidir.
Gereç ve Yöntemler: Üç farklı monolitik zirkonya materyalinden, 13 mm çapında ve 1 mm kalınlığında toplam 90 adet disk şeklinde örnek hazırlanmıştır.Elde edilen örnekler, polisaj kiti uygulanan grup polisaj kitini takiben polisaj patı uygulanan grup ve glaze uygulanan grup, olmak üzere 3 gruba ayrılmıştır.Polisaj işlemleri sonrası örnekler ultrasonik banyoda 10 dk temizlendikten sonra örneklerin ilk renk ölçümleri spektrofotometre kullanılarak nötral gri arka fonda yapıldı. CIE L*a*b*renk sistemine göre örneklerin ortalama L*, a* ve b* değerleri hesaplandı. Translusensi ölçümleri beyaz ve siyah arka fonlar üzerinde Translusensi parametresi yöntemi kullanılarak yapıldı, ortalama Lw ,aw, bw ve Lb, ab, bb değerleri hesaplandı. Tüm örnekler 134C, 0,2 MPa’da 30 dk yaşlandırma işlemine tabi tutulduktan sonra ikinci renk ve translüsensi ölçümleri yapıldı. Tüm ölçümler her örnek için üç kez tekrarlandı.
Bulgular: İlk ve ikinci ölçümler arasında yapılan karşılaştırmalar sonrası, yaşlandırma ve polisaj sonrasında en fazla renk değişimi Katana monolitik zirkonyumda gözlendi. Yaşlandırma sonrası lastik polisaj uygulanan Katana monolitik zirkonyum örnekler, lastik polisaj pat ve glaze ile polisaj uygulanan Katana monolitik zirkonyum örneklerden daha çok translüsent değişimi gösterdi. Katana monolitik zirkonyumda daha fazla renk değişiminin olması, materyalde bulunan fazla metal oksit miktarıyla ilişkili olabilir.
Sonuç: Elde edilen veriler doğrultusunda; Katana monolitik zirkonyum için lastik polisaj uygulaması, Dental Direkt ve Upcera monolitik zirkonyum için her üç polisaj yöntemi önerilebilir.


Anahtar Kelimeler: monolitik zirkonya, renk değişimi, translüsensi, yapay yaşlandırma

Keywords

monolitik zirkonya, renk değişimi, translüsensi, yapay yaşlandırma

Ethical Statement

ETİK KURUL ONAY BELGESİ GEREKTİREN BİR ÇALIŞMA DEĞİLDİR.

EFFECTS OF ARTIFICIAL AGING PROCESS ON COLOR STABILITY AND TRANSLUCENCENCY OF MONOLITHIC ZIRCONIA

Abstract

Aim: The aim of the study is to evaluate the effect of aging and polishing on the optical properties of monolithic zirconias.
Methods: A total of 90 disk-shaped samples with a diameter of 13 mm and a thickness of 1 mm were prepared from three different monolithic zirconia.The obtained samples were divided into 3 different groups: the group to which a polishing kit was applied, the group to which polishing paste was applied following the polishing kit, and the group to which glaze was applied. All specimens were cleaned in an ultrasonic bath for 10 minutes after polishing. Color measurements of samples performed using the spectrophotometer. Color characteristics were measured according to the CIE L*a*b* color system, and the average L*, a* and b* values were calculated. Translucency Parameter (TP) method was used for translucency measurements. All samples were aged at 134C 0.2 MPa for 30 min. Then, second color and translucency measurements were made.
Results: According to comparisons between the measurements, Katana monolithic zirconium had a more significant color change and translucent result than other two monolithic zirconias. Katana monolithic zirconium polishing by rubber gave a significantly more translucent result after aging than the polishing processes with paste and glaze. The reason for more color change in Katana may be related to the excess metal oxide content in the material.
Conclusion: Based on this study's findings, rubber polishing can be recommended for Katana monolithic zirconium. Rubber, paste and glaze polishing processes can be applied for these monolithic zirconias.

Keywords: artificial aging, color change, monolithic zirconia, translucency

Keywords

artificial aging, color change, monolithic zirconia, translucency

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