MEKANİK VE PAT İLE PARLATMA İŞLEMLERİNİN CAD/CAM HİBRİT BLOKLARIN RENK STABİLİTESİNE ETKİSİ

Year 2021, Volume: 31 Issue: 1, 88 - 93, 15.01.2021

Gaye Sağlam Şükriye Ece Geduk

https://doi.org/10.17567/ataunidfd.814030

Abstract

Amaç: Bu çalışmanın amacı farklı yüzey bitirme tekniklerinin Cerasmart ve Vita Enamic blokların renk değişimine etkisinin incelenmesidir.
Gereç ve Yöntem: Cerasmart ve Vita Enamic hibrit CAD/CAM bloklar 1,5x12x12 mm3 boyutlarında su soğutması altında hassas kesme cihazı ile kesildi (n=36). Örnekler her bir materyal için 3’er alt gruba ayrıldı. 1. grup kontrol grubu olarak belirlendi ve herhangi bir polisaj işlemi yapılmadı. 2. gruba elmas içerikli cila lastiği ile mekanik parlatma, 3. gruba elmas içerikli polisaj pastası kullanılarak polisaj yapıldı. Tüm örneklerin başlangıç renk değerleri CIELAB renk sistemine göre dental spektrofotometre kullanılarak beyaz arka plan üzerinde ölçüldü. Ardından örnekler kahve solüsyonunda bekletildi. Yedinci gün sonunda örnekler solüsyondan çıkarıldı ve tekrar renk ölçümleri yapıldı. Renk değişimleri ΔE cinsinden hesaplandı. Elde edilen verilerin istatistik analizi Kruskal Wallis testi ile yapıldı.
Bulgular: Cerasmart örneklerde başlangıç ve 7. gün renk değişimleri arasında anlamlı bir fark bulundu (p<0.05). Cerasmart örneklerde en düşük ΔE değeri mekanik polisaj grubunda elde edildi. Vita Enamic örneklerde başlangıç ve 7. Gün renk değişimleri arasında anlamlı bir fark bulunmamaktadır (p=0,166). Cerasmart örneklerde Vita Enamic’e göre daha yüksek ortalama ΔE değerleri görüldü.
Sonuç: Mekanik ve pat ile polisaj işlemlerinin rezin seramik CAD/CAM bloklar ile üretilen restorasyonların renk stabilitesine olumlu etkisi bulunmaktadır.
Anahtar kelimeler: CAD/CAM, rezin seramik, renk stabilitesi

THE EFFECT OF MANUAL AND PASTE POLISHING PROCEDURES ON THE COLOR STABILITY OF CAD/CAM HYBRID BLOCKS
ABSTRACT

Aim:The aim of this study was to compare the color changes of the Cerasmart and Vita Enamic blocks which were applied different surface finishing techniques.
Material and Method: Cerasmart and Vita Enamic hybrid CAD/CAM blocks were divided into sections with dimensions of 1,5x12x12 mm3 under water using a precision cutting device (n=36). The specimens randomly divided into 3 groups for each material. Group 1, as control, no polishing were applied. Group 2 were polished mechanically with diamond grit polisher. Group 3 were polished with diamond polishing paste. Initial color values of all specimens were measured in CIELAB color space with a dental spectrophotometer on a white background. Then specimens were immersed in coffee beverage. After 7 days, the color values were remeasured. ΔE values were calculated. The data was statistically analyzed by Kruskal Wallis.
Results: There were statistically significant difference between initial and 7th day color change values in Cerasmart specimens (p<0.05). The lowest ΔE values were obtained in mechanical polishing group for Cerasmart. For Vita Enamic, no difference was found between initial and 7th day color change values (p=0,166). The higher ΔE values were obtained in the Cerasmart specimens then Vita Enamic.
Conclusion: Mechanical and paste polishing procedures have a positive effect on the color stability of restorations produced with resin ceramic CAD / CAM blocks.
Keywords: CAD/CAM, resin ceramic, staining resistance

Keywords

CAD/CAM, rezin seramik, renk stabilitesi

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