Shaping Ability of Reciprocating Single-file Systems in Simulated Canals: Reciproc versus Reciproc Blue

Abstract

The aim was to compare the canal straightening of M-wire [Reciproc (VDW, Munich, Germany)] and blue-wire heat-treated [Reciproc Blue (VDW) instruments in simulated resin L-shaped curved root canals. A total of 26 simulated L-shaped root canals with curvature of 45° and length of 17 mm (#15-0.02 taper) endo training blocks were divided into two groups (n = 13). All canals were prepared to an apical size 25 according to the manufacturers’ instructions. Pre- and post-instrumentation digital photography were superimposed and canal straightening was analysed using a computer imaging programme. Shapiro-Wilk test was used to determine the normal distribution of the data. For comparing two groups according to canal straightening independent t-test was used. During preparation no instrument fractured. All instruments maintained the original canal curvature well with no significant differences between the instruments. Regarding preparation time, no significant differences between the two instruments were obtained (P > 0.05). Under the conditions of this study, instruments were safe to use and all instruments respected the original canal curvature well. It was concluded that reciprocal motion files with or without blue-heat treated had similar preparation time and similar shaping abilities at intracanal temperature and maintained root canal curves equally well.

Keywords

• canal curvature
• reciprocal motion
• simulated canal

Simüle Edilmiş Kanallarda Resiprokal Tek Eğe Sistemlerin Şekillendirme Yetenekleri: Reciproc ve Reciproc blue

Abstract

Amaç, simüle edilmiş rezin L-şekilli kurvatüre sahip kök kanallarında M-wire [Reciproc (VDW, Münih, Almanya)] ve mavi ısıl işlem görmüş [Reciproc Blue (VDW) eğelerin kanal düzleştirmesini karşılaştırmaktı. 45 ° kavisli ve 17 mm uzunluğunda (# 15-0.02 konik) toplam 26 simüle edilmiş L-şekilli kök kanalını taklit eden endodonitk eğitim blokları iki gruba ayrıldı (n = 13). Tüm kanallar, üreticinin talimatlarına göre 25 nolu apikal boyutta hazırlandı. Enstrümantasyon öncesi ve sonrası dijital fotoğraflar üst üste çakıştırılarak kanal kurvatüründeki düzleşme bir bilgisayar görüntüleme programı kullanılarak analiz edildi. Verilerin normal dağılımını belirlemek için Shapiro-Wilk testi kullanıldı. Kanal kurvatüründeki düzleşmeye göre iki grubu karşılaştırmak için bağımsız t-testi kullanıldı. Şekillendirme sırasında hiçbir alette kırık gözlenmedi. Orijinal kanal kurvatürü iki grup arasında önemli bir farklılık olmaksızın iyi korudu. Şekillendirme süresi ile ilgili olarak, iki sistem arasında önemli bir fark elde edilmedi (P> 0.05). Bu çalışmanın koşulları altında, aletlerin kullanımı güvenliydi ve tüm aletler orijinal kanal kurvatürünü çok iyi uyarak şekillendirmelerini sağladı. Mavi ısıl işlem görmüş veya görmemiş resiprokal hareket yapan eğelerin benzer hazırlık süresine ve kanal içi sıcaklıkta benzer şekillendirme yeteneklerine sahip olduğu ve kök kanal eğrilerini eşit derecede iyi koruduğu sonucuna varıldı.

Keywords

• kanal kurvatürü
• reciprokal hareket
• simule kanal

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