Matériaux de type géopolymère en endondotie (étude in vitro)

RENNES1-BU Santé (352382103) / SudocPARIS-BIUM (751062103) / SudocSudocFranceF

Etude "in vitro" de la cytotoxicité d'un ciment de scellement endodontique expérimental de type alumino-silicate

RENNES1-BU Santé (352382103) / SudocPARIS-BIUM (751062103) / SudocSudocFranceF

Comparaison de l'éfficacité du nettoyage canalaire de trois systèmes Ni-Ti utilisés en rotation continue (étude in vitro en microscopie électronique à balayage)

REIMS-BU Santé (514542104) / SudocSudocFranceF

La Consommation de drogues de synthèse, la perte de lien social et leurs conséquences buccodentaires

RENNES1-BU Santé (352382103) / SudocPARIS-BIUM (751062103) / SudocSudocFranceF

Comparaison du respect de la trajectoire canalaire de dents après préparation a l'aide de trois systèmes Ni-Ti. Etude in vitro en Cone-Beam computed tomography

REIMS-BU Santé (514542104) / SudocSudocFranceF

Comparative analysis of root canal changes after preparation with three systems using Cone-Beam Computed Tomography

Introduction: The aim of this study was to investigate the morphological changes in the root canal trajectory on extracted teeth after preparation with Endoflare/Revo-S®, Endoflare/HeroShaper® and ProTaper® using Cone-Beam Computed Tomography (CBCT). Methods: 39 root canals with similar curvatures were divided into three homogeneous groups (n = 13). Root canals in Group 1 were shaped with Endoflare/Revo-S®; Group 2 with Endoflare/Hero Shaper®, and Group 3 with ProTaper®. All specimens were scanned pre- and postoperatively using the Kodak® 9000C 3D imaging system. Changes in both degree and position of the root canal curvature were assessed. Canal transportation was calculated for each slice by comparing the position of the root canal centroid before and after instrumentation. Statistical analysis was carried out by the non-parametric Kruskal–Wallis test (p < 0.05), and Mann–Whitney test applying the Bonferroni correction (p < 0.05). Results: The mean of curvature degree decreases significantly (p < 0.003) for each group, with no statistical differences between the three groups. Mean canal transportation scores ranged from 52 μm (Revo-S®) to 85 μm (ProTaper®) in the apical third; 51 μm (Revo-S®) to 87 μm (ProTaper®) in the middle third, and 77 μm (HEROShaper®) to 119 μm (ProTaper®) in the cervical third. In the apical and the middle parts, Revo-S® produced statistically less transportation than HEROShaper® (respectively p = 0.01708, p = 0.01328) and ProTaper® (respectively p = 0.02402, p = 0.0202). Conclusion: All instruments produced a small curvature deviation and mild canal transportation. Revo-S® resulted in less transportation in the apical and middle thirds

Evolution des concepts thérapeutiques en dentisterie restauratrice

RENNES1-BU Santé (352382103) / SudocPARIS-BIUM (751062103) / SudocSudocFranceF