Journal
AUSTRALIAN ENDODONTIC JOURNAL
Volume 49, Issue 1, Pages 130-139Publisher
WILEY
DOI: 10.1111/aej.12633
Keywords
endodontic; micro-CT; root canal preparation
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Shaping ability of taper .01 instruments in large root canals was evaluated using micro-CT and SEM. XP-Endo Shaper showed less dentinal wear compared to manual instrumentation. Roundness and SMI were similar between both protocols. Reduced diameter and taper instruments promoted conservative wear and well-defined apical stop formation in large root canals.
Shaping ability evaluation of taper ./01 instruments in large root canals, by microcomputed tomography (micro-CT) and scanning electron microscopy (SEM). Maxillary central incisors with large diameter root canals were divided into two groups (n = 10): XP-Endo Shaper (FKG-Dentaire, Switzerland) and manual instrumentation (FKG-Dentaire). Two- and three-dimensional parameters from cervical to apical root thirds were evaluated by micro-CT. Apical stop was evaluated by SEM images. Data were analysed by ANOVA and Tukey tests (alpha = 5%). XP-Endo Shaper allowed a regular biomechanical preparation with less dentinal wear compared with manual instrumentation, which showed excessive wear of the thin root canal walls (p < 0.05). Roundness and SMI showed similarity between both protocols (p > 0.05). XP-Endo Shaper SEM showed a regular and well-defined shape of the apical foramen suggesting the formation of the apical stop. Reduced diameter and taper instruments promoted a conservative wear and a well-defined apical stop formation in large root canals.
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