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Danger zone analysis using cone beam computed tomography after apical enlargement with K3 and K3XF in a manikin model

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Danger zone analysis using cone beam computed tomography after apical enlargement with K3 and K3XF in a manikin model

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dc.contributor.author Olivieri, Gonzalo es
dc.contributor.author García Font, Marc es
dc.contributor.author González Sánchez, José Antonio es
dc.contributor.author Roig Cayón, Miguel es
dc.contributor.author Duran Sindreu, Fernando es
dc.date.accessioned 2017-03-06T08:29:49Z
dc.date.available 2017-03-06T08:29:49Z
dc.date.issued 2016 es
dc.identifier.citation Olivieri, Gonzalo ; García Font, Marc ; González Sánchez, José Antonio ; Roig Cayón, Miguel ; Duran Sindreu, Fernando. Danger zone analysis using cone beam computed tomography after apical enlargement with K3 and K3XF in a manikin model. En: Journal of Clinical and Experimental Dentistry. 2016. Vol. 8, no. 4: 361 es
dc.identifier.uri http://hdl.handle.net/10550/57525
dc.description.abstract Background: The objective of the study was to evaluate and compare how apical enlargement with K3 and K3XF nickel-titanium (NiTi) rotary instruments reduces the root thickness in the danger zone and affects canal transportation and centering ability in mandibular molar mesial canals in a manikin extracted tooth model. Material and Methods: Seventy-two mesial root canals of first mandibular molars were instrumented. Initial and post-instrumentation Cone Beam Computed Tomography scans were performed after root canal preparation up to size 25, 30, 35 and 40 files. Canal transportation, canal centering and remaining root dentin thickness toward the danger zone were calculated in sections 1, 2 and 3 mm under the furcation level. Data were analyzed using nonparametric Kruskal-Wallis analysis of variance at a significance level of P < 0.05. Results: K3 instruments removed more dentin toward the danger zone compared with K3XF instruments (P< .05) and significant differences in dentin thickness were found when canal enlargement was performed to a #35-40 with both systems (P< 0.05). No significant differences in canal transportation and centering ability were found between systems, except when canal enlargement was performed to a #40 (P = 0,0136). No differences were observed when comparing the number of uses in both systems (P> 0.05). Conclusions: Under the conditions of this study K3 removed a significant amount of dentin at the furcation level compared with the R-Phase K3XF rotary system in curved root canals. Enlargement to a 35-40/04 file removed significantly more dentin with both systems. en_US
dc.subject Odontología es
dc.subject Ciencias de la salud es
dc.title Danger zone analysis using cone beam computed tomography after apical enlargement with K3 and K3XF in a manikin model es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÃ DICAS es
dc.type.hasVersion VoR es_ES

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