Journals / Cumhuriyet Dental Journal / 2019 / Cilt: 22 - Sayı: 4

EFFECT OF DIFFERENT SURFACE TREATMENTS ON THE REPAIR OF AGED BULK-FILL COMPOSITES: AN IN VITRO STUDY

Farklı Yüzey İşlemlerinin Yaşlandırılmış Bulk-Fill Kompozitlerin Tamirine Olan Etkisi: In Vitro Çalışma

Pages
451–460
Publication Date
2022-10-11
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The use of universal adhesive alone is promising to facilitatethe repair of bulk-fill RBCs.

📌 3 Key Takeaways

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Objective & Hypothesis:Objectives: The aim of this in vitro study was to evaluate the efficiency ofdifferent surface treatments on the microtensile bond strength (µTBS) of agedbulk-fill composite.Materials and Methods: Sixty bulk-fill resin-based composite (RBC)specimens in 5 x 5 x 5 dimensions were prepared.
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Key Findings & Data:After the aging by thermalcycling for 5000 times between 5 and 55°C, substrate surfaces were abradedwith SiC abrasive papers.
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Conclusion & Impact:The use of universal adhesive alone is promising to facilitatethe repair of bulk-fill RBCs.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objectives: The aim of this in vitro study was to evaluate the efficiency ofdifferent surface treatments on the microtensile bond strength (µTBS) of agedbulk-fill composite.Materials and Methods: Sixty bulk-fill resin-based composite (RBC)specimens in 5 x 5 x 5 dimensions were prepared. After the aging by thermalcycling for 5000 times between 5 and 55°C, substrate surfaces were abradedwith SiC abrasive papers. Specimens were divided into 6 groups according tothe surface treatment protocol: no surface treatment (control), control + SingleBond Universal (SBU; 3M ESPE) application, phosphoric acid etching (PA) +SBU, hydrofluoric acid etching (HF) + SBU, aluminum oxide air abrasion(AlO) + SBU, and tribochemical silica coating (TSC) + SBU. Surfaceroughness values were measured in five different directions using a contactprofilometer (n=10). Then, specimens were repaired with a conventional RBC.After the repair, bonded specimens were cut into 1 mm2 beams and µTBSvalues were determined until failure at a crosshead speed of 0.5 mm/min.Specimen surfaces after surface treatments were observed by SEM. Data wereanalyzed using ANOVA and Tukey tests (p PA = Control.Conclusions: Aged bulk-fill RBCs can be successfully repaired if effectiveand safe repair protocol is chosen. The highest µTBS values were obtained forthe AlO and TSC. The use of universal adhesive alone is promising to facilitatethe repair of bulk-fill RBCs.

Özet

Amaç: Bu in vitro çalışmanın amacı, farklı yüzey işlemlerinin, yaşlandırılmış bulk-fill kompozit reçine kompozit tamirinin mikrogerilme bağlanma dayanımı üzerindeki etkilerini değerlendirmektir. Gereç ve Yöntemler: Hazırlanan bulk-fill kompozit bloklar (n=60, 5 x 5 x 5 mm), 5 ile 55°C arasında 5000 defa yaşlandırma döngüsü sonrasında, uygulanacak yüzey işlemi protokolüne göre 6 gruba ayrılmıştır: yüzey işlemi yok (kontrol), üniversal adeziv uygulaması (SBU; 3M ESPE), fosforik asit (PA) + SBU, hidroflorik asit (HF) + SBU, alüminyum oksit kumlama (AlO) + SBU ve tribokimyasal silika kaplama (TSC) + SBU. Yüzey pürüzlülük değerleri beş farklı yönde ölçüm yapılarak kontakt profilometre ile belirlenmiştir (n=10). Tamir işleminden sonra, örneklerden 1 mm2 ’lik çubuklar elde edilmiş ve mikrogerilme bağlanma değerleri kopma olana kadar 0,5 mm/dak hızda kaydedilmiştir. Yüzey işlemlerinden sonra numune yüzeyleri SEM ile gözlenmiştir. Veriler, tek yönlü ANOVA ve Tukey testleri kullanılarak analiz edilmiştir (pHF>PA=Kontrol şeklindedir. Sonuçlar: Etkili ve güvenli bir onarım protokolü seçildiğinde, bulk-fill kompozitlerin başarılı bir şekilde onarılabilmektedir. En yüksek mikrogerilme bağlanma dayanımı değerleri AlO ve CoJet işlemleri sonucunda elde edilmiştir. Üniversal adezivler, bulk-fill kompozit tamiri süreçlerini kolaylaştırmak adına umut vericidir.

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Cite This Article

ŞİŞMANOĞLU, S. (2022). EFFECT OF DIFFERENT SURFACE TREATMENTS ON THE REPAIR OF AGED BULK-FILL COMPOSITES: AN IN VITRO STUDY. Cumhuriyet Dental Journal, Cilt: 22 - Sayı: 4, 451–460. https://ajindex.com/articles/476939

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