Dergiler / Clinical Dentistry and Research / 2018 / Cilt: 42 - Sayı: 2

EVALUATION OF CERVICAL INTEGRITY FOLLOWING THERMOMECHANICAL LOADING OF CLASS II BOX CAVITIES RESTORED WITH BULK-FILL COMPOSITES

BULK-FİLL KOMPOZİTLER İLE RESTORE EDİLEN SINIF II KUTU KAVİTELERİN TERMO-MEKANİK YÜKLEME SONRASI SERVİKAL BÜTÜNLÜĞÜNÜN DEĞERLENDİRİLMESİ

Sayfa
49–56
DOI
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

There was no statistically significant difference in microleakage among the bulk-fill and conventional composite groups, with or without thermo-mechanical loading.

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Amaç & Hipotez:Background and Aims: This in-vitro study aimed to evaluate the effects of thermo-mechanical loading on the microleakage of proximal box cavities restored with bulk-fill composites.
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Temel Bulgular & Veri:The gingival margins of the mesial proximal box cavities were terminated 1 mm below the cemento-enamel junction, whereas those of the distal proximal box cavities were terminated 1 mm above.
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Sonuç & Katkı:There was no statistically significant difference in microleakage among the bulk-fill and conventional composite groups, with or without thermo-mechanical loading.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Alan Parametreleri

Özet

Background and Aims: This in-vitro study aimed to evaluate the effects of thermo-mechanical loading on the microleakage of proximal box cavities restored with bulk-fill composites. Materials and Methods: Four different combinations of restorative materials were evaluated: conventional flowable composite+conventional paste-like composite, conventional paste-like composite, bulk-fill flowable composite+conventional paste-like composite, and bulk-fill paste-like composite. The gingival margins of the mesial proximal box cavities were terminated 1 mm below the cemento-enamel junction, whereas those of the distal proximal box cavities were terminated 1 mm above. Before and after thermo-mechanical loading (240,000×50 N for 2500 thermal cycles between 5°C-55°C), the teeth were immersed in a 0.5% basic fuchsin dye at 23°C for 24 h. Sectioned samples were examined under a stereomicroscope, and the degree of microleakage was statistically analyzed using three-way analysis of variance and Tukey post hoc test (p 0.05). Conclusions: Restorations with margins located within dentin had greater microleakage. Thermo-mechanical loading negatively influenced the samples, thus exacerbating microleakage values at margins located within both the enamel and the dentin. There was no statistically significant difference in microleakage among the bulk-fill and conventional composite groups, with or without thermo-mechanical loading.

Abstract

Amaç: Bu in-vitro çalışmanın amacı, bulk-fill kompozitlerle restore edilen proksimal kutu kavitelerin, termomekanik yükleme sonrası mikrosızıntısını değerlendirmektir. Gereç ve Yöntem: Bu çalışmada dört farklı restoratif materyalin kombinasyonu (geleneksel akışkan kompozit + geleneksel kıvamda kompozit, geleneksel kıvamda kompozit, bulk-fill akışkan kompozit + geleneksel kıvamda kompozit, bulkfill geleneksel kıvamda kompozit) incelenmiştir. Yakın zamanda çekilmiş 3. Mesial proksimal kutu kaviteler mine-sement birleşiminin 1mm altında, distal kutu kaviteler ise 1mm üstünde sonlandırılmıştır. Termomekanik yükleme yapılan (240.000 x 50 N, 5°C-55°C arasında 2500 ısıldöngü), ve yapılmayan örnekler %0.5’lik bazik fuksin içerisinde 23°C’de 24 saat bekletilmiştir. Kesilen örnekler steriomikroskopta değerlendirilmiş ve mikrosızıntı skorları üç-yönlü ANOVA ve Tukey Post Hoc testi (p 0.05). Sonuçlar: Bu bulgular sonucunda, dentinde sonlanan restorasyonların daha fazla mikrosızıntı sergilediği sonucuna varılmıştır. Restorasyonlar termo-mekanik yüklemeye tabi tutulduğunda olumsuz etkilenmişlerdir ve mine ve dentinde mikrosızıntı miktarı artmıştır. Termo-mekanik yükleme yapılan, bulk-fill ve geleneksel kompozit grupları arasında, mikrosızıntı yönünden istatistiksel olarak anlamlı fark izlenmemiştir.

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Bu Makaleye Atıf Yap

ERSÖZ, B., GÜR, G., DEMİREL, G. (2018). EVALUATION OF CERVICAL INTEGRITY FOLLOWING THERMOMECHANICAL LOADING OF CLASS II BOX CAVITIES RESTORED WITH BULK-FILL COMPOSITES. Clinical Dentistry and Research, Cilt: 42 - Sayı: 2, 49–56. https://ajindex.com/articles/144396

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