Transportation assessment in artificial curved canals after instrumentation with Reciproc, Reciproc Blue, and XP‐endo Shaper Systems

Abstract

Aim:In the present study, we compared the transportation of three different instrumentation systems in different levels of standardized artificial curved canals. Methods:Sixty epoxy resin blocks containing simulated canals were divided into three groups (n = 20) according to the instrument used for canal preparation: Reciproc (REC), Reciproc Blue (REC Blue), and XP-endo Shaper (XPS). Pre-and post-instrumentation digital images of each specimen were superimposed by Photoshop software to evaluate the different amount of transportation. The Kruskal-Wallis and Wilcoxon were the non-parametric tests applied for the intergroup and intragroup analyses, respectively. The significance level was set at 5%. Results:The XPS showed significantly less canal transportation than REC Blue at five levels (P < 0.05) and significantly less canal transportation at seven evaluated levels when compared with the REC (P < 0.05). REC Blue showed significant less canal transportation than REC at four of the eight evaluated levels (P < 0.05). All evaluated instruments showed a significantly higher amount of resin removal toward the inner wall compared to the outer wall of the curvature (P < 0.001). Conclusion: Although the XPS showed significantly less canal transportation than REC and REC Blue, all systems produced transportation from the original canal anatomy. K E Y W O R D S nickel-titanium, Reciproc, Reciproc Blue, root canal, XP-endo Shaper How to cite this article: Pacheco-Yanes J, Gazzaneo I, Pérez AR, Armada L, Neves MAS. Transportation assessment in artificial curved canals after instrumentation with Reciproc, Reciproc Blue, and XP-endo Shaper Systems. J Invest Clin

The impact of minimally invasive root canal preparation strategies on the ability to shape root canals of mandibular molars

“…Instruments with variable tapers may cause significantly less removal of coronal dentine in comparison with continuously tapered instruments whilst also providing adequate apical enlargement (Almeida et al 2019). Different results were obtained in previous studies that found more (Peters et al 2015, Pacheco-Yanes et al 2019, similar (Zhao et al 2019) or less (Elnaghy et al 2017) dentine preservation when using MaxWire instruments in comparison with conventional NiTi files. This may be so due to the different instruments that were used, especially with regard to cross section design and metallurgical properties.…”

“…2015, Pacheco‐Yanes et al . 2019), others reported greater removal of dentine (Elnaghy et al . 2017).…”

“…According to the manufacturer, these instruments allow greater dentine preservation in comparison with conventional NiTi instruments (https://www.fkg.ch/xpendo/shaper). However, very few studies have evaluated the shaping ability and the total volume of dentine removed associated with MaxWire instruments; in addition, the results obtained so far are conflicting: whilst some studies demonstrated more tissue preservation when using MaxWire instruments (Peters et al 2015, Pacheco-Yanes et al 2019, others reported greater removal of dentine (Elnaghy et al 2017).…”

Avaliação do preparo de canais mesiais curvos por diferentes sistemas de instrumento único: estudo por microtomografia computadorizada

“…Ainda foram propostas técnicas de conformação que utilizam um instrumento, em movimento de rotação recíproca (AKSOY et al, 2019;BERUTTI et al, 2012;PACHECO-YANES et al, 2019;PLOTINO et al, 2012;VERSIANI et al, 2018;YARED, 2008YARED, , 2012, o qual se assemelha à movimentação feita pela instrumentação manual preconizada por Roane Sabala e Duncansom Jr. (1985).…”

“…No entanto, o grupo XPendo Shaper demonstrou maior centralização do preparo quando comparado ao grupo Reciproc Blue (p < 0,01). Não houve diferença estatística entre os grupos Reciproc Blue e Reciproc (p > 0,05) e a Reciproc e XP-endo Shaper (p > 0,05).A hipótese nula levantada de que os diferentes sistemas de instrumentos apresentam eficácia diferenciada no preparo de canais mesiais curvos de primeiros molares inferiores foi aceita, tendo em vista que o grupo XP-endo Shaper obteve resultados diferentes quando comparados aos demais grupos (Reciproc e Reciproc Blue).Diante da constante evolução dos materiais utilizados na Odontologia e, em especial, dos instrumentos endodônticos (ALRAHABI; ATTA, 2019;PACHECO- YANES et al, 2019;USLU et al, 2018;VERSIANI et al, 2018), é importante que a comunidade acadêmica e profissional esteja sempre atualizada quanto às principais características e desempenho desses dispositivos na clínica endodôntica. É sob esse contexto que este estudo foi elaborado, visando comparar o desempenho dos instrumentos Reciproc ® , Reciproc Blue ® e XP-Endo Shaper ® quando do PQM de canais mesiais curvos de primeiros molares inferiores.…”