Micro‐CT evaluation of filling of flattened root canals using a new premixed ready‐to‐use calcium silicate sealer by single‐cone technique

2020 ◽  
Author(s):  
Karina I. M. C. Tavares ◽  
Jáder C. Pinto ◽  
Airton O. Santos‐Junior ◽  
Fernanda F. E. Torres ◽  
Juliane M. Guerreiro‐Tanomaru ◽  
...  
Keyword(s):  
Calcium Silicate ◽  
Micro Ct ◽  
Root Canals ◽  
Single Cone ◽  
Ct Evaluation

scholarly journals Micro-Computed Tomography (Micro-CT) Evaluation of Effects of Different Rotary Glide Path Techniques on Canal Transportation and Centering in Curved Root Canals

2019 ◽  
Vol 25 ◽  
pp. 6351-6358
Author(s):  
Gabrielė Česaitienė ◽  
Tadas Venskutonis ◽  
Vita Mačiulskienė ◽  
Vaidotas Cicėnas ◽  
Vykintas Samaitis ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Micro Ct ◽  
Micro Computed Tomography ◽  
Root Canals ◽  
Glide Path ◽  
Ct Evaluation ◽  
Canal Transportation ◽  
Curved Root Canals

scholarly journals A micro-CT evaluation of the performance of rotary and reciprocating single-file systems in shaping ability of curved root canals

2020 ◽  
Vol 34 ◽  
Author(s):  
Manoel Damião SOUSA-NETO ◽  
Bruno Monguilhott CROZETA ◽  
Fabiane Carneiro LOPES ◽  
Jardel Francisco MAZZI-CHAVES ◽  
Rodrigo Dantas PEREIRA ◽  
...  
Keyword(s):  
File Systems ◽  
Micro Ct ◽  
Root Canals ◽  
Single File ◽  
Ct Evaluation ◽  
Shaping Ability ◽  
Curved Root Canals

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

2021 ◽  
Vol 10 (15) ◽  
pp. e444101523301
Author(s):  
Christianne Velozo ◽  
Hugo Dantas ◽  
Basílio Rodrigues Vieira ◽  
Frederico Barbosa de Sousa ◽  
Victor Felipe Farias do Prado ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Root Canal ◽  
Micro Ct ◽  
Micro Computed Tomography ◽  
Mean Values ◽  
Root Canals ◽  
Gutta Percha ◽  
Working Length ◽  
Single Cone ◽  
Student’S T

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.

scholarly journals Apical Displacement and Residual Root Canal Filling with Single-Cone After Post Space Preparation: A Micro-CT Analysis

2020 ◽  
Vol 31 (1) ◽  
pp. 25-31
Author(s):  
Camila Maria Peres de Rosatto ◽  
Lilian Vieira Oliveira ◽  
Danilo Cassiano Ferraz ◽  
Priscilla Barbosa Ferreira Soares ◽  
Carlos José Soares ◽  
...  
Keyword(s):  
Root Canal ◽  
Filling Material ◽  
Micro Ct ◽  
Root Canal Filling ◽  
Root Canals ◽  
Single Cone ◽  
Before And After ◽  
Ct Analysis ◽  
Post Space ◽  
Apical Displacement

Abstract The purpose of this study was to evaluate the presence of residues after post space preparation (PSP) and establish whether the apical displacement of the gutta-percha was affected by the moments and methods of PSP in teeth filled by the single-cone technique. The root canals of 20 bovine incisor teeth were instrumented with Reciproc and filled with single-cone and AH Plus. The specimens were divided into 4 groups according to the moment and method of PSP (n=5): immediate with drill, immediate with thermoplasticizer, delayed with drill and delayed with thermoplasticizer. Micro-CT scans were performed before and after the PSP for residues of the root canal filling (1) and analysis of apical displacement (2). Data were analyzed by using 2-way repeated measurement ANOVA (1) and 2-way ANOVA (2) followed by the Tukey’s test (a=0.05). Significance effect on the residues percentage remaining for methods (p=0.044), for moments (p=0.006), for thirds repetition (p<0.001), and for interaction between methods and thirds (p<0.001), and moments and thirds (p=0.044). Significance effect on the apical displacement of root canal filing was detected for methods (p=0.008), however no difference was found between moments (p=0.617). In general, PSP using drill resulted in more homogeneous root canal preparation, mainly when made immediately. For all other combinations between methods and moments for PSP, the middle and apical thirds presented significant higher residues remaining. Thermo method performed in both moments and the drill method performed immediately had displacement in the apical direction, representing extrusion of the root filling material.

scholarly journals Experimental research of retreatability of root canals filled with bioceramic sealer

2021 ◽  
Vol 18 (4) ◽  
pp. 4-9
Author(s):  
A. V. Mitronin ◽  
D. A. Ostanina ◽  
Yu. A. Mitronin
Keyword(s):  
Experimental Research ◽  
Material Removal ◽  
Filling Material ◽  
Micro Ct ◽  
Root Canals ◽  
Working Length ◽  
Root Canal Retreatment ◽  
Single Cone ◽  
Before And After ◽  
Root Dentin

Aim. This study aimed to determine the residual filling material and the reestablishment of working length and apical patency after retreatment of TotalFill® BC Sealer.Materials and methods. Thirty maxillary incisors were used in a single cone obturation technique with TotalFill BC Sealer (FKG, Switzerland) and randomly divided into 6 groups according to the retreatment technique. The samples were scanned by micro-CT before and after retreatment in order to evaluate the residual filling material on the root dentin walls. Data were analyzed statistically with the Kruskal-Wallis tests (p < 0.05).Results. No instrumental protocol was able to remove all obturation material from the root canals. The differences in reduction in the total volume of filling material percentage were statistically significant (p < 0.05) among groups with and without ultrasound or sound activation in retreatment protocol.Conclusions. The most effective root canal retreatment was determined with D-Race + XP-endo Shaper + XP-Endo Finisher R + US (3.0 W) protocol; it was found that the efficiency of filling material removal was more than 92%.

scholarly journals Micro-CT evaluation of apical enlargement of molar root canals using rotary or reciprocating heat-treated NiTi instruments

2019 ◽  
Vol 27 ◽  
Author(s):  
Jáder Camilo PINTO ◽  
Mariana Mena Barreto PIVOTO-JOÃO ◽  
Camila Galetti ESPIR ◽  
Maria Luiza Gioster RAMOS ◽  
Juliane Maria GUERREIRO-TANOMARU ◽  
...  
Keyword(s):  
Micro Ct ◽  
Root Canals ◽  
Heat Treated ◽  
Ct Evaluation ◽  
Niti Instruments

scholarly journals Micro-CT Evaluation of Root and Canal Morphology of Mandibular First Premolars with Radicular Grooves

2017 ◽  
Vol 28 (5) ◽  
pp. 597-603 ◽  
Author(s):  
Emanuele Boschetti ◽  
Yara Terezinha Correa Silva-Sousa ◽  
Jardel Francisco Mazzi-Chaves ◽  
Graziela Bianchi Leoni ◽  
Marco Aurélio Versiani ◽  
...  
Keyword(s):  
Surface Area ◽  
Root Canal ◽  
Two Dimensional ◽  
Micro Ct ◽  
Cross Sectional ◽  
Sample Mean ◽  
Percentage Frequency ◽  
Root Canals ◽  
Ct Evaluation ◽  
Dimensional Parameters

Abstract The aim of this study was to evaluate morphological features of 70 single-rooted mandibular first premolars with radicular grooves (RG) using micro-CT technology. Teeth were scanned and evaluated regarding the morphology of the roots and root canals as well as length, depth and percentage frequency location of the RG. Volume, surface area and Structure Model Index (SMI) of the canals were measured for the full root length. Two-dimensional parameters and frequency of canal orifices were evaluated at 1, 2, and 3 mm levels from the apical foramen. The number of accessory canals, the dentinal thickness, and cross-sectional appearance of the canal at different root levels were also recorded. Expression of deep grooves was observed in 21.42% of the sample. Mean lengths of root and RG were 13.43 mm and 8.5 mm, respectively, while depth of the RG ranged from 0.75 to 1.13 mm. Mean canal volume, surface area and SMI were 10.78 mm3, 58.51 mm2, and 2.84, respectively. Apical delta was present in 4.35% of the sample and accessory canals were observed mostly at the middle and apical thirds. Two-dimensional parameters indicated an oval-shaped cross-sectional appearance of the root canal with a high percentage frequency of canal divisions (87.15%). Canal configuration type V (58.57%) was the most prevalent. C-shaped configuration was observed in 13 premolars (18.57%), whereas dentinal thickness ranged from 1.0 to 1.31 mm. Radicular grooves in mandibular first premolars was associated with the occurrence of several anatomical complexities, including C-shaped canals and divisions of the main root canal.

Micro-CT evaluation of voids using two root filling techniques in the placement of MTA in mesial root canals of Vertucci type II configuration

2017 ◽  
Vol 22 (5) ◽  
pp. 1907-1913 ◽  
Author(s):  
Ali Keleş ◽  
Mahmoud Torabinejad ◽  
Cangül Keskin ◽  
Dongjin Sah ◽  
İsmail Uzun ◽  
...  
Keyword(s):  
Type Ii ◽  
Micro Ct ◽  
Root Canals ◽  
Ct Evaluation
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