Evaluation of Surface Roughness and Bacterial Adhesion After Different Finishing Procedures on CAD/CAM Ceramic Materials

Yıl 2024, Cilt: 10 Sayı: 1, 23 - 34, 17.04.2024

Mahmut Erçil , Özge Parlar Öz , Yasemin Zer , Ayşe Büyüktaş Manay

Öz

Objectives: The aim of this study is to determine the ideal finishing process for CAD/CAM ceramic materials for use in dental restorations. For this determination, the surface roughness and bacterial adhesion counts of the ceramic surfaces after common finishing procedures are compared.
Materials and Methods: A total of 120 samples with a thickness of 1 ± 0.05 mm were obtained from different CAD/CAM ceramic materials (IPS Empress CAD, IPS E-Max CAD, VITA Suprinity and CEREC blocs). The samples from each ceramic group were divided into three subgroups (n = 10) according to the finishing procedure (control, manual polished and glazed). The surface roughness values (Ra) were measured with an optical profilometer before and after each finishing procedure. An additional sample from each group was prepared for scanning, and surface roughness was visualized using scanning electron microscope analysis. A bacterial adhesion test was applied to determine the levels of Streptococcus mutans adhesion on each surface.
Results: After the finishing process, the highest Ra value was observed in the LC glazed group, and a statistically significant difference was found between the LC glazed group and the manual polished groups (p < 0.05). The least amount of bacterial adhesion was observed in the LD glaze group. There were no statistically significant differences between the LD glaze group and the LC and ZL control groups (p > 0.05).
Conclusion: The polished samples had smoother ceramic surfaces than the glazed samples. When evaluated in terms of bacterial adhesion, the effective polishing method for each ceramic type varied. Therefore, the polishing method should be chosen according to ceramic type.

Anahtar Kelimeler

Bacteria, Ceramics, Crowns, Microbiology, Zirconium

Etik Beyan

Ethics committee approval was received for this study from the clinical researches ethics committee of Gaziantep University. (Decision number: 2019/509)

Destekleyen Kurum

Gaziantep University Scientific Research Projects Governing Unit supported this study. (Project No: DHF.UT.20.04)

Proje Numarası

DHF.UT.20.04

Teşekkür

The authors thank to Prof. Dr. Seval KUL for statistical analysis of the study.

Seramik Esaslı CAD/CAM Materyallerinde Bitim İşlemleri Sonrası Yüzey Pürüzlülüğü ve Bakteri Tutulumunun Değerlendirilmesi

Öz

AMAÇ: Seramik malzemeler için ideal bitim işlemini yüzey pürüzlülüğü ve bakteriyel adezyon parametreleri ile değerlendirerek belirlemektir.
GEREÇ-YÖNTEM: Farklı CAD/CAM seramik malzemelerinden (IPS Empress CAD, IPS E-Max CAD, VITA Suprinity ve CEREC blokları) 1±0.05 mm kalınlığında 120 numune hazırlandı. Her seramik grubundan hazırlanan numuneler bitirme işlemine göre (kontrol, manuel polisaj ve glaze) üç alt gruba (n=10) ayrıldı. Yüzey pürüzlülük değerleri başlangıçta ve işlem sonrası olmak üzere iki kere optik profilometre cihazı kullanılarak ölçüldü. Taramalı elektron mikroskobu (SEM) analizi için her gruptan birer numune hazırlandı ve yüzey pürüzlülüğü SEM ile görüntülendi. Alınan numunelerin yüzeylerinde S. mutans tutulumu olup olmadığını belirlemek için bakteriyel adezyon testi uygulandı.
BULGULAR: Bitim işleminlerinden sonra en yüksek Ra değeri LC glaze grubunda gözlendi ve LC glaze grubu ile polisaj grupları arasında istatistiksel olarak anlamlı bir fark bulundu (p<0.05). Bakteriyel adezyon miktarı en az LD glaze grubunda gözlenmiştir. LD glaze grubu ile LC kontrol ve ZL kontrol grupları arasında istatistiksel olarak anlamlı fark bulunmamıştır (p> 0.05).
SONUÇ: Polisaj işlemi seramik yüzeyde glaze olan yüzeylere göre daha pürüzsüz alanlar bırakmıştır. Bakteriyel adezyon açısından değerlendirildiğinde her seramik türü için etkili polisaj yöntemi farklı olduğu ortaya çıkmıştır. Bu nedenle seramik cinsine göre polisaj yöntemi tercih edilmelidir.

Anahtar Kelimeler

bakteri, seramik, kron, mikrobiyoloji, zirkonyum

Proje Numarası

DHF.UT.20.04

Kaynakça

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