Turkiye Klinikleri Journal of Dental Sciences

.: ORIGINAL RESEARCH
Ön Isıtma İşleminin Bulk-Fill Kompozit Rezinlerin Mikrosızıntı Değerleri Üzerine Etkisi: in vitro Çalışma
Effect of Preheating Process on Microleakage Values of Bulk-Fill Resin Composites: an in vitro Study
Dilan KOPUZa , Özlem ERÇİNa
aİstanbul Kent Üniversitesi Diş Hekimliği Fakültesi, Restoratif Diş Tedavisi AD, İstanbul, Türkiye
Turkiye Klinikleri J Dental Sci. 2024;30(2):304-11
doi: 10.5336/dentalsci.2023-100781
Article Language: TR
Full Text
ÖZET
 Amaç: Bu çalışmanın amacı, ön ısıtma işlemi uygulanmış bulkfill kompozit rezinlerin mikrosızıntı değerlerini karşılaştırmaktır. Gereç ve Yöntemler: Elli adet molar dişin mesiyaline ve distaline 4x3x2 (yükseklikxgenişlikxderinlik) boyutlarında Sınıf II kaviteler açıldı. Dört farklı bulk-fill (SonicFill 3, Opus Bulk-Fill APS, Tetric PowerFill, Filtek One Bulk-Fill) ve bir kontrol grubu kompozit rezin (Filtek Z250) ısıtma işlemi uygulanmasına göre; ön ısıtma işlemi (68°C etüvde, 10 dk) ve oda sıcaklığında bekletilmek üzere 2 alt gruba ayrıldı (n=10) ve ardından kaviteler restore edildi. Tüm örnekler termal siklusa (5-55°C, 1.200) tabi tutulduktan sonra 24 saat boyunca %0,5 bazik fuksin çözeltisinde oda sıcaklığında bekletildi. Mikrosızıntının boyutunu ölçmek için dişler, bukkolingual ve meziodistal yönlerde bölündü. Her gruptan ikişer numune taramalı elektron mikroskobu analizi için ayrıldı. Geri kalan örnekler ise mikrosızıntı skor yöntemi kullanılarak değerlendirildi. Veriler Kruskal-Wallis H ve Mann-Whitney U testleri ile istatistiksel olarak analiz edildi (p<0,05). Bulgular: Önceden ısıtma işlemine tabi tutulan kompozit rezinler ile oda sıcaklığındaki kompozit rezinlerin mikrosızıntı değerleri karşılaştırıldığında, Tetric PowerFill, Filtek OneBulk Fill ve Filtek Z250 kompozit rezinlerinde anlamlı farklılıklar görüldü (p<0,05). Isıtılmış kompozit rezinler karşılaştırıldığında ise en yüksek değer Filtek One BulkFill'de görülürken, en düşük değer Tetric PowerFill kompozit rezin grubunda görüldü. Oda sıcaklığındaki kompozit rezinler karşılaştırıldığında ise en yüksek değer Opus Bulk Fill APS'de görülürken, en düşük değer kontrol grubu olan FiltekZ250 kompozit rezin grubunda görüldü. Sonuç: Konvansiyonel tabakalama sistemi ile restore edilen dişlerin, bulk-fill tekniğine göre daha az mikrosızıntı gösterdiği sonucuna ulaşılmaktadır. Test edilen materyallerden Opus Bulk-Fill APS hariç bütün kompozit rezinlerde, ön ısıtma işlemi mikrosızıntı değerlerini negatif yönde etkiledi.

Anahtar Kelimeler: Bileşik rezinler; mikrosızıntı; ısıtma; bazik fuksin
ABSTRACT
 Objective: To evaluate the microleakage of preheated bulk-fill resin composites. Material and Methods: Class II cavities with dimensions of 4x3x2 (heightxwidthxdepth) were prepared in the mesial and distal parts of a total of 50 intact, caries-free human molar teeth. Four different bulk-fill (SonicFill 3, Opus Bulk-Fill APS, Tetric PowerFill, Filtek One Bulk-Fill) and a resin composite (Filtek Z250) used as a control group. Groups were divided into preheated (kept at 68°C in incubator for 10 mins) and room temperature (n=10 each). All samples were subjected to thermal cycles (5-55°C, 1,200) and kept in 0.5% basic fuchsin solution at room temperature for 24 hours. Teeth were split into buccolingual and mesiodistal directions. SEM analysis was done on two samples per group. The other samples were evaluated using the microleakage score method. Statistical analysis employed Kruskal-Wallis H and Mann-Whitney U tests (p<0,05). Results: When the microleakage values of preheated and room temperature resin composites were compared, significant differences were observed in Tetric PowerFill, Filtek OneBulk Fill and Filtek Z250 resin composites (p<0.05). When heated resin composites were compared, the highest value was seen in Filtek One BulkFill, while the lowest value was seen in Tetric PowerFill resin composite group. When room temperature resin composites compared, the highest value was seen in Opus Bulk Fill APS, while the lowest value was seen in the FiltekZ250 resin composite group, which was the control group. Conclusion: Teeth restored with the conventional layering system show less microleakage than the bulk-fill technique. Among the tested materials, preheating negatively affected microleakage values in all resin composites except Opus BulkFill APS.

Keywords: Resin composites; microleakage; heating; basic fuchsin
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