The Effects of Different Surface Preparation Techniques on Enamel Surface Properties and Bond Strength

Year 2024, Volume: 8 Issue: 1, 14 - 25, 30.04.2024

Büşra Akkaya , Yagmur Sener

Abstract

The purpose of this study was to investigate the morphological and chemical changes and bond strength on enamel surfaces subjected to different surface preparation. The samples were evaluated in in vitro tests with 7 different groups(acid etching, Er:YAG laser QSP mode, and Er:YAG laser MSP mode, Air-Flow, and combinations with acid). Surface profilometer and AFM were used to evaluate the surface roughness. After the surface treatment, the chemical changes were analyzed using SEM-EDS. The effects of preparation technique on the bond strength to the enamel surface were evaluated by using micro tensile and shear bond strength tests. The values obtained the surface roughness evaluation of surface profilometer and AFM were compatible with each other. The highest roughness value was found in QSP when all groups were compared. Ca/P ratios of the surfaces were evaluated as a result of SEM-EDS analysis and it was observed that Ca/P ratio increased in all groups except Acid. It was seen that the results obtained for all groups of micro tensile and shear bond strength tests were consistent with each other. In conclusion, it is considered the use of Er:YAG laser QSP settings with acid can effect the long-term success of restorations clinically.

Keywords

AFM, Enamel, SEM-EDS, Surface Preparation

Ethical Statement

Ethical committee approval for the study was obtained from the Faculty of Dentistry Ethics Committee (2016/011).

Supporting Institution

None

Thanks

Merhum Prof. Dr. Yağmur Şener anısına.

Farklı Yüzey Hazırlama Tekniklerinin Mine Yüzey Özelliklerine ve Bağlanma Dayanımına Etkisi

Abstract

Bu çalışmanın amacı, farklı yüzey hazırlığına tabi tutulan mine yüzeylerdeki morfolojik ve kimyasal değişimler ile bağlanma mukavemetinin araştırılmasıdır. Örnekler in vitro testlerde kullanılmak üzere 7 farklı gruba (asit dağlama, Er:YAG lazer QSP modu ve Er:YAG lazer MSP modu, Air-Flow ve asitle kombinasyonlar) ayrıldı. Yüzey pürüzlülüğünü değerlendirmek için yüzey profilometresi ve AFM kullanıldı. Yüzey işleminden sonra kimyasal değişiklikler SEM-EDS kullanılarak analiz edildi. Preparasyon tekniğinin mine yüzeyine bağlanma dayanımı üzerindeki etkileri mikro gerilim ve makaslama bağlanma dayanımı testleri kullanılarak değerlendirildi. Yüzey profilometresi ve AFM'nin yüzey pürüzlülüğü değerlendirmesinden elde edilen değerler birbiriyle uyumluydu. Tüm gruplar karşılaştırıldığında en yüksek pürüzlülük değeri QSP'de bulundu. SEM-EDS analizi sonucunda yüzeylerin Ca/P oranları değerlendirilmiş ve Asit dışındaki tüm gruplarda Ca/P oranının arttığı görülmüştür. Mikro gerilim ve makaslama bağlanma dayanımı testlerinde tüm gruplar için elde edilen sonuçların birbiriyle uyumlu olduğu görüldü. Sonuç olarak, Er:YAG lazer QSP ayarlarının asitle birlikte kullanılmasının klinik olarak restorasyonların uzun vadeli başarısını etkileyebileceği düşünülmektedir.

Keywords

AFM, Mine, SEM-EDS, Yüzey Hazırlığı

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