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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Effect of canal preparation with XP-endo Shaper and ProTaper Next on root canal geometry and dentin thickness of mandibular premolars with radicular grooves and two canals: a micro-CT study

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Author(s):
Cerqueira, Nathalia Mancioppi [1] ; Louzada, Victoria Gabriela [1] ; Silva-Sousa, Yara Teresinha Correa [1] ; Raucci-Neto, Walter [1] ; Leoni, Graziela Bianchi [1]
Total Authors: 5
Affiliation:
[1] Univ Ribeirao Preto, Sch Dent, Ave Costabile Romano 2201, BR-14096900 Ribeirao Preto, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: CLINICAL ORAL INVESTIGATIONS; v. 25, n. 9, p. 5505-5512, SEP 2021.
Web of Science Citations: 0
Abstract

Objectives This study aimed to evaluate the effects of different shaping protocols on the root canal geometry and remaining dentin thickness of mandibular premolars with radicular grooves (RG) and two canals by means of micro-CT. Materials and methods Mandibular premolars with RG and two canals were matched based on their similar morphological dimensions and assigned to 2 experimental groups according to the canal preparation (n=8): XP-endo Shaper (XPS) and ProTaper Next (PTN) systems. Before and after preparation, morphometric measurements of the volume, surface area, structure model index, area, perimeter, roundness, major and minor diameters, as well as untouched canal walls, canal transportation, and dentin wall thickness were evaluated. Data were statistically compared within and between groups using the independent sample t test (alpha=5%). Results XPS revealed less changes in volume, surface area, area, perimeter, and major and minor diameters (P<0.05). There was no significant difference in structure model index (SMI), roundness, and percentage of untouched canal walls between groups (P>0.05). XPS resulted in less apical canal transportation and a higher remaining dentin thickness toward the RG compared to PTN in lingual canals (P<0.05). Conclusions XPS revealed fewer changes in root canal geometry as well as lower transportation and a greater remaining dentin thickness in the lingual canals toward the RG compared to PTN. (AU)

FAPESP's process: 18/23913-5 - Micro-computed tomography study of the effects of different protocols of biomechanical preparation on the internal and external anatomy of mandibular premolars with radicular grooves
Grantee:Nathália Mancioppi Cerqueira
Support Opportunities: Scholarships in Brazil - Scientific Initiation