Objective: The aim of this study is to evaluate the effect of dentin surface treatments with citric, tartaric, phosphoric, and boric acids on the bonding strength of monolithic zirconia.
Material and Methods: A hundred human molar teeth were randomly divided into subsets (n = 10) based on acid treatment modalities and thermocycling procedure. Monolithic zirconia superstructures were fabricated using CAD/CAM system in the final dimensions of 7 mm in diameter and 3 mm in thickness. After application of acid treatments to dentin surface, shear bond strength test was performed to assess the effectiveness of surface modifications that were also examined using a scanning electron microscope.
Results: The study groups were ranked respectively as (citric acid>tartaric acid>phosphoric acid>boric acid>control) for the set of groups without thermocycling and (citric acid>tartaric acid) and (phosphoric acid>boric acid>control) for the set of thermocycling groups (p<0.05) based on highest value. The bonding strength of tartaric acid group was not significantly different from the bonding strength of phosphoric acid group (p>0.05).
Conclusion: In both procedures with and without thermal cycling; based on order of efficacy, citric, tartaric, phosphoric, and boric acids were more effective in improving the shear bond strength between monolithic zirconia and dentin surface. The thermal cycling procedure decreased the bonding strength in all the groups.
Scientific Research Projects Commission of Cumhuriyet University (CUBAP)
DIS-188
The authors express their sincere gratitude to Assoc. Prof. Dr. Ali Ozer for his support in examination of SEM images.
Amaç: Bu çalışmanın amacı, dentin yüzeyine uygulanan sitrik, tartarik, fosforik ve borik asit uygulamasının, monolitik zirkonyanın bağlanma dayanımına etkisini araştırmaktır.
Gereç ve Yöntemler: Bu çalışmada, 100 adet insan dişi rastgele seçim yöntemiyle asit uygulama prosedürleri ve termal yorgunluk işlemlerine göre alt gruplara ayrıldı (n = 10). Monolitik zirkonya restorasyonlar, CAD/CAM sistemi kullanılarak 3 mm kalınlığında ve 7 mm çapında üretildi. Dentin yüzeylerine asit uygulaması işleminin ardından, uygulanan asitlerin etkinliğini değerlendirmek üzere makaslama bağlantı dayanım testi uygulandı. Yüzey modifikasyonları taramalı elektron mikroskobu yardımıyla incelendi.
Bulgular: Çalışma grupları, termal yorgunluk uygulanmayan grup için (sitrik asit> tartarik asit> fosforik asit> borik asit> kontrol) ve termal yorgunluk uygulanan gruplar için (fosforik asit> borik asit> kontrol) en yüksek bağlanma değerine göre sıralandı (p<0.05). Tartarik asit grubu ile fosforik asit grubu arasında bağlantı dayanım değerlerinde istatistiksel olarak anlamlılık saptanamadı (p>0.05).
Sonuç: Termal döngü içeren ve içermeyen her iki prosedürde; etkinlik sırasına göre sitrik, tartarik, borik asit uygulaması, monolitik zirkonya ile dentin arasındaki bağlantı dayanımını arttırmada daha başarılı olmuştur. Termal yorgunluk uygulaması tüm gruplarda bağlanma dayanımını azaltmıştır.
DIS-188
Primary Language | English |
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Subjects | Health Care Administration |
Journal Section | Original Research Articles |
Authors | |
Project Number | DIS-188 |
Publication Date | February 24, 2021 |
Submission Date | October 2, 2020 |
Published in Issue | Year 2021Volume: 24 Issue: 1 |
Cumhuriyet Dental Journal (Cumhuriyet Dent J, CDJ) is the official publication of Cumhuriyet University Faculty of Dentistry. CDJ is an international journal dedicated to the latest advancement of dentistry. The aim of this journal is to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of dentistry. First issue of the Journal of Cumhuriyet University Faculty of Dentistry was published in 1998. In 2010, journal's name was changed as Cumhuriyet Dental Journal. Journal’s publication language is English.
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