Turkiye Klinikleri Journal of Dental Sciences

.: ORIGINAL RESEARCH
3D Yazıcıda Üretilen Restorasyonların Temizleme Prosedürlerinin Mikrosertlik ve Makaslama Bağ Dayanımı Üzerine Etkisinin İncelenmesi: in vitro Çalışma
Investigation of the Effect of Cleaning Procedures on Microhardness and Shear Bond Strength of Restorations Produced by 3D Printer: in vitro Study
Burcu KUŞa , Numan AYDINa , Serpil KARAOĞLANOĞLUa , Elif Aybala OKTAYa , Bilge ERSÖZa
aSağlık Bilimleri Üniversitesi Gülhane Diş Hekimliği Fakültesi, Restoratif Diş Tedavisi AD, Ankara, Türkiye
Turkiye Klinikleri J Dental Sci. 2024;30(2):297-303
doi: 10.5336/dentalsci.2023-100460
Article Language: TR
Full Text
ÖZET
 Amaç: Son yıllarda 3D yazıcı kullanılarak geçici ve daimi dental restorasyonlar üretilmektedir. Bu çalışmadaki amacımız; 3D yazıcıda daimi rezinlerinden üretilen örneklere farklı yüzey temizliği uygulamasının mikrosertlik ve adeziv siman ile makaslama bağ dayanımı etkisini incelemektir. Gereç ve Yöntemler: Çalışmada SLA ve DLP baskı özelliklerine sahip 3D yazıcılar kullanıldı. 3D yazıcı daimi restorasyon rezinlerinden (Crowntec, Saremco ve Permanent Crown, Formlabs) 44 adet örnek üretildi. Üretimden sonra örneklerin yarısı 3 dk izopropil alkole (%99) batırılarak temizlenirken, diğer yarısı 1 dk izopropil alkollü (%99) gazlı bez ile temizlendi. Örneklerin postpolimerizasyon işlemi üretici önerileri doğrultusunda gerçekleştirildi. Hazırlanan örneklerin mikrosertlik değerleri ölçüldü. Örneklerin yüzeyine kumlama uygulanarak yüzey hazırlıkları yapıldıktan sonra ISO 29022:2013 standartlarında belirtildiği gibi (2,38 mm çapında) şeffaf bir kalıp içerisinde self-adeziv rezin siman (G-CEM ONE, GC) yapıştırıldı. Yapıştırma simanı ile 3D rezin arasındaki yapışma kalitesini belirlemek için makaslama bağ dayanımı testi yapıldı. Çalışmada veriler iki yönlü varyans analizi ve Tukey çoklu karşılaştırma testi kullanılarak değerlendirildi (p<0,05). Bulgular: 3D yazıcıda daimi rezinlerden hazırlanan örneklerin yüzeyi gazlı bez ile temizlendiğinde istatistiksel olarak daha fazla mikrosertlik ve makaslama bağ dayanımı değeri gösterdi (p<0,05). SLA ve DLP 3D yazıcıda hazırlanan örneklerin mikrosertlik ve makaslama bağ dayanımı değerleri arasında istatistiksel olarak anlamlı bir farklılık yoktu (p>0,05). SEM analizinde 3 dk alkolde bekletilen örneklerin yüzeyinde daha fazla boşluk görüldü. Sonuç: 3D yazıcıda üretilen restorasyonların yüzey temizlik prosedürleri mikrosertlik ve makaslama bağ dayanımı değeri üzerinde etkilidir.

Anahtar Kelimeler: 3D baskı; 3D daimi rezin; makaslama bağ dayanımı; mikrosertlik
ABSTRACT
 Objective: In recent years, temporary and permanent dental restoration materials have been produced using 3D printers. Our aim in this study is to examine the effects on microhardness and shear bond strength with adhesive cement after applying different surface cleanings to samples produced from permanent restoration resins in 3D printers. Material and Methods: 3D SLA and DLP printing features was used in the study. 3D-printed permanent resins (Crowntec, Saremco ve Permanent Crown, Formlabs) were produced 44 samples. After production, half of the samples were cleaned by dipping in isopropyl alcohol (99%) for 3 minutes, while the other half was cleaned with isopropyl alcohol (99%) gauze for 1 minute. Post-polymerization of the samples was carried out in accordance with the manufacturer's recommendations. The microhardness values of the prepared samples were measured. After surface preparations were made by sandblasting the surface of the samples, self-adhesive resin cement (G-CEM ONE, GC) was adhered in a transparent mold (2.38 mm in diameter) as specified in ISO 29022:2013 standards. Shear bond strength test was performed to determine the adhesion quality between luting cement and 3D resin. The data in the study were evaluated using the two-way analysis of variance and Tukey post hoc test (p<0.05). Results: When the surface of the samples prepared from permanent resin in the 3D printer was cleaned with gauze, they showed statistically higher microhardness and shear bond strength values (p<0.05). There was no statistically significant difference between the microhardness and shear bond strength values of the samples prepared in SLA and DLP 3D printers (p>0.05). In the SEM analysis, more voids were seen on the surface of the samples that were kept in alcohol for 3 minutes. Conclusion: The surface cleaning procedures of the samples produced by the 3D printer are effective on the microhardness and shear bond strength values.

Keywords: 3D printing; 3D-printed resin; shear bond strength; microhardness
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