Adaptation of the single-cone in prepared long oval-shaped canals: a micro-computed tomography study

• Autor(a) principal: Velozo, Christianne
• Data de Publicação: 2021
• Outros Autores: Dantas, Hugo, Rodrigues Vieira, Basílio, Sousa, Frederico Barbosa de, Prado, Victor Felipe Farias do, Sousa, Ismael Sebastião da Silva, Albuquerque, Maria Beatriz Arruda, Albuquerque, Diana Santana de
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Research, Society and Development
• Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/23301
• topic: Micro-CT; Protaper Next; Preparo do canal radicular; Cone único; Xp-endo Shaper.; Micro-CT; Protaper Next; Preparación del conducto radicular; Solo cono; XP-endo Shaper.; Micro-CT; Protaper Next; Root canal preparation; Single-cone; Xp-endo shaper.

The present study aimed to evaluate adaptation of the single gutta-percha cone on root canal walls prepared with the two systems, the XP-endo Shaper (XPS; FKG Dentaire, La Chaux-de-Fonds, Switzerland) and ProTaper Next systems (PTN; Dentsply Sirona, Ballaigues, Switzerland) by using micro-computed tomography (micro-CT) technology. Twenty long oval-shaped canals in mandibular incisors were scanned by micro-CT (Skyscan 1172; Bruker microCT, Kontich, Belgium). Two groups were divided into (n = 10) according to the canal preparation protocol: XPS group with an extra 45 s of instrumentation and PTN group. A gutta percha cone, with respect to the protocol used for each group (size 40, .04 taper, XPS and size 40, .06 taper, PTN) was adapted to the canal at the working length of all the samples, and all root canals were filled, using the single-cone technique. The mean values for volume of voids and percentage relative to the mentioned space were correspondingly higher in XPS group than they were PTN group, mean values for volume of voids (3.61 mm3 - 1.92 mm3) and for percentage of voids (39.25% - 23.28%), respectively, significant differences were recorded (p < 0.05) between the two groups (XPS and PTN, Student’s-t test for homogenous variances and Mann–Whitney test). The canals prepared with XPS, in the procedure performed with an extra 45 s of instrumentation, showed a higher volume of voids than those prepared with the PTN system, in obturation of the root canal with the single cone technique.