Şehnaz Yılmaz, Ayşin Dumani, Ayfer Ateş, Kadriye Özdayı

Farklı irrigasyon sistemlerinin yapay yan kanalların doldurulması üzerindeki etkisi

Amaç: Bu çalışmanın amacı, güncel olarak kullanılan sonik irrigasyon ve aktivasyon sistemlerinin kapalı yöntemle hazırlanmış yapay yan kanalların doldurulabilmesi üzerindeki etkisinin, radyografik analizle ve diş şeffaflaştırma yöntemiyle değerlendirilmesidir.Gereç ve Yöntem: Bu çalışma için, kök uzunlukları birbirine yakın, 60 adet yeni çekilmiş üst çene ön bölge ve alt çene küçükazı insan dişi seçildi. Dişlerin kronları uzaklaştırıldı ve kök ucunun 3, 6, 9 mm uzak noktalarında hem mezial hem de distal taraftan dişin dış yüzeyine dik olacak şekilde 15 nolu reamerla lateral kanallar oluşturuldu. Kök kanalları genişletildi ve rastgele olacak şekilde üç gruba (n=20) ayrıldı: grup 1, Vibringe sonik irrigasyon; grup 2, pasif ultrasonik irrigasyon (PUI); ve kontrol grubu, geleneksel iğne irrigasyonu. Kök kanalları AH Plus ve guta perka ile soğuk lateral sıkıştırma yöntemi ile dolduruldu. Her örnekten periapikal radyograf alındı ve stereomikroskop için dekalsifiye edildi. Bulgular: Radyografik değerlendirmede, kontrol ve PUI grupları arasında ve şeffaflaştırma yapılan örneklerin analizinde kontrol ve Vibringe grupları arasında orta üçlü seviyesinde istatistiksel olarak farklılık bulunmuştur. Bununla birlikte, şeffaflaştırma yapılan örnekler, radyografik incelemeye göre daha yüksek değerler göstermiştir. Sonuç: Sonik veya ultrasonik irrigasyon kök kanallarının orta üçlü seviyesinde oluşturulan yapay yan kanalların doldurulmasında istatistiksel olarak farklılık göstermiştir. İrrigantların ultrasonik olarak aktive edilmesi hem radyografik hem de şeffaflaştırılan örneklerin değerlendirilmesinde daha iyi sonuçlar göstermektedir.

Anahtar Kelimeler:

İrrigasyon, lateral kondenzasyon, kök kanal tedavisi

Effectiveness of different irrigation systems on filling of simulated lateral canals

Purpose: The purpose of this study was to evaluate the effect of currently used sonic irrigation and activation systems on filling of simulated lateral canals in a closed system by radiographic analysis and tooth decalcification and clearing method. Materials and Methods: Sixty freshly extracted human maxillary anterior and mandibular premolar teeth with similar root length were selected for this study. The teeth were decoronated and lateral canals were created by inserting #15 reamer at 3, 6, 9 mm away from the apex, on the mesial and distal walls perpendicularly to the external surface. The root canals were instrumented and randomly assigned into three groups (n=20): group 1, Vibringe sonic irrigation; group 2, passive ultrasonic irrigation (PUI); and control group 3, conventional needle irrigation. The root canal were filled with AH plus and gutta-percha using the cold lateral compaction technique. Periapical radiographs were taken from each specimen and then decalcified for stereomicroscopic analysis. Results: Significant difference was found at the middle third between the control and the PUI groups in the radiographic evaluation and between the control and the Vibringe group in the cleared specimens. However, the cleared specimens showed higher values than radiographic evaluation quantitatively.Conclusions: Sonically or ultrasonically irrigation showed significant differences on the filling of the simulated lateral canals at the middle third of the root canals. Ultrasonic activation of the irrigants represented better results in radiographic and cleared specimen evaluation.

Keywords:

irrigation, lateral compaction, root canal treatment,

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