scholarly journals Main and Accessory Canal Filling Quality of a Premixed Calcium Silicate Endodontic Sealer According to Different Obturation Techniques

Materials ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 4389
Author(s):  
Su-Yeon Ko ◽  
Hae Won Choi ◽  
E-Deun Jeong ◽  
Vinicius Rosa ◽  
Yun-Chan Hwang ◽  
...  
Keyword(s):  
Root Canal ◽  
Calcium Silicate ◽  
Void Formation ◽  
Ultrasonic Activation ◽  
Root Canal Filling ◽  
Filling Materials ◽  
Single Cone ◽  
Chi Squared ◽  
Main Canal

The present study aimed to investigate the effects of different obturation techniques on the main and accessory canal filling quality of a premixed calcium silicate endodontic sealer (Endoseal TCS). We also highlighted the validity of the methods used for evaluating the canal filling quality. Thirty single-rooted premolars were used for the main canal filling and 75 were used for accessory canal filling. The canals were instrumented and randomly divided into three groups according to the filling techniques: (1) single-cone technique (SC), (2) single-cone with ultrasonic activation (SU), and (3) warm vertical compaction (WV). Voids in relation to the root canal fillings were assessed using cross-section images from microcomputed tomography (μCT) scans or transversely sectioned tooth specimens (n = 10). After demineralization and clearing of the teeth, the incidence, number, and completeness of the accessory canal fillings were evaluated (n = 25). One-way analysis of variance (ANOVA) and Tukey’s post hoc test was used for the evaluation of the voids in the main root canal and the incidence and number of filled accessory canals. Pearson’s chi-squared (χ2) test was used for the evaluation of the filling completeness (α = 0.05). In the stereomicroscopic evaluation of the sectioned specimen, the SC group had significantly higher void occurrence than the other groups (p < 0.05), although there was no difference between groups in the μCT evaluation. However, there was no difference between the SU and WV. There was no difference between all the groups regarding the incidence, number, and completeness of the accessory canal fillings. When the premixed calcium silicate sealer is used with SC, the ultrasonic activation is recommended to obtain a better main canal filling quality. In contrast, the obturation techniques did not affect the accessory canal filling. We also recommend using the sectioning method when the void formation in the root canal filling materials is evaluated.

scholarly journals Effects of Ultrasonic Activation on Root Canal Filling Quality of Single-Cone Obturation with Calcium Silicate-Based Sealer

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1292
Author(s):  
Sin-Young Kim ◽  
Young-Eun Jang ◽  
Bom Sahn Kim ◽  
Eun-Kyoung Pang ◽  
Kiche Shim ◽  
...  
Keyword(s):  
Root Canal ◽  
Calcium Silicate ◽  
Continuous Wave ◽  
Void Volume ◽  
Ultrasonic Activation ◽  
Sem Images ◽  
Root Canal Filling ◽  
Gutta Percha ◽  
Single Cone

Background: We evaluated the effects of ultrasonic activation on root canal filling quality of the single-cone (SC) obturation technique with calcium silicate sealers and gutta percha cones. Methods: Thirty-six human single-rooted premolars were obturated with gutta percha and sealer. For the continuous wave (CW) group (n = 12), AH Plus with a continuous wave technique was used. The SC group (n = 12) received EndoSequence BC sealer with a single-cone technique. The SCU (SC with the addition of ultrasonic activation) group (n = 12) received the same treatment. Micro-computed tomography was used to scan the teeth, and the void volume within the root canal was evaluated at the apical, middle, and coronal levels. Then cross-sections were observed under a light microscope and scanning electron microscope (SEM). Results: Void volume was significantly lower in the SCU group than in the CW and SC groups. There were no statistically significant differences between the CW and SC groups. The SCU group had fewer voids than the CW and SC groups in the coronal and middle third areas. Specimens showed no apparent gaps or voids in any group. SEM images revealed both gap-free and gap-containing regions at different levels in all groups. Conclusions: Single-cone obturation with calcium silicate-based sealers might obtain enhanced filling quality when used with ultrasonic activation.

scholarly journals Root Canal Filling Quality of a Premixed Calcium Silicate Endodontic Sealer Applied Using Gutta-percha Cone-mediated Ultrasonic Activation

2018 ◽  
Vol 44 (1) ◽  
pp. 133-138 ◽  
Author(s):  
Jung-Ae Kim ◽  
Yun-Chan Hwang ◽  
Vinicius Rosa ◽  
Mi-Kyung Yu ◽  
Kwang-Won Lee ◽  
...  
Keyword(s):  
Root Canal ◽  
Calcium Silicate ◽  
Ultrasonic Activation ◽  
Root Canal Filling ◽  
Gutta Percha

scholarly journals Evaluation of the radiopacity of selected calcium-silicate root canal sealers

2019 ◽  
Vol 65 (4) ◽  
Author(s):  
Przemysław Reszka ◽  
Katarzyna Grocholewicz ◽  
Agnieszka Droździk ◽  
Mariusz Lipski
Keyword(s):  
Root Canal ◽  
Calcium Silicate ◽  
In Vitro Study ◽  
International Standards ◽  
Root Canal Filling ◽  
Filling Materials ◽  
Ah Plus ◽  
Root Canal Sealers

Introduction: International standards require adequate radiopacity of root canal filling materials to distinguish them from natural structures, such as tooth tissues, and to allow evaluation of the quality of the root canal filling.The aim of this in vitro study was to assess the radiopacity of selected calcium-silicate root canal sealers compared with the resin-based AH Plus root canal sealer.Materials and methods: The study included 6 root canal sealers: BioRoot RCS, GuttaFlow bioseal, MTA Fillapex, Total Fill BC Sealer, Well-Root ST and AH Plus. Six disc-shaped samples were prepared from all analysed materials (4 mm in diameter and 1 mm thick) and analysed using a digital radiography technique and aluminium step wedges (1.5–15 mm thick) as a standard reference. The radiopacity was determined using computer image analysis. The data was statistically analysed using a Tukey’s range test.Results: All root canal sealers showed radiopacity at least corresponding to the 3 mm aluminium step wedge. AH Plus (13.23 mm Al) showed the highest radiopacity, followed by Total Fill BC Sealer (7.93 mm Al), Well-Root ST (7.12 mm Al), BioRoot RCS (5.93 mm Al) and GuttaFlow bioseal (5.08 mm Al ). MTA Fillapex (3.02 mm Al) showed the lowest radiopacity.Conclusions: Although the evaluated root canal sealers show different radiopacities, all the materials met the criteria laid down by the International Organization of Standardization.

scholarly journals Influence of Sealer Placement Technique on the Quality of Root Canal Filling by Lateral Compaction or Single Cone

2014 ◽  
Vol 25 (2) ◽  
pp. 117-122 ◽  
Author(s):  
Adriana Simionatto Guinesi ◽  
Gisele Faria ◽  
Mario Tanomaru-Filho ◽  
Idomeo Bonetti-Filho
Keyword(s):  
Statistical Analysis ◽  
Root Canal ◽  
Lower Percentage ◽  
Root Canal Filling ◽  
Gutta Percha ◽  
Single Cone ◽  
Digital Microscope ◽  
Placement Technique

The aim of this study was to evaluate the influence of the sealer placement technique on the quality of root canal filling using Lateral Compaction (LC) or Single Cone (SC). In order to do that, 60 mesial roots of mandibular first molars were prepared and divided into 2 groups (n=30), according to the filling technique: LC and SC. Each group was subdivided into 3 subgroups (n=10), according to the different sealer placement methods: A: Master gutta-percha (GP) cone; B: Lentulo spiral; C: File. The roots were sectioned at 2, 4 and 6 mm from the apex and photographed with the aid of a digital microscope. Then, areas of GP, endodontic sealer and voids were measured, and these data were subjected to statistical analysis. LC technique showed no statistically difference (p>0.05) in the percentage of GP area, sealer and voids between the subgroups at any of the three levels. After use of SC, higher percentages of sealer area were found at all levels (p<0.01) when the sealer was placed with a file. At 2 mm, higher percentage of void areas (p<0.05) was observed when the cone was used, lower percentage with K-file and the lowest percentage with Lentulo. At 4 mm, cone showed higher percentage of void areas (p<0.05). At 6 mm, there were no significant differences (p>0.05) between the three methods. Considering these results, using an instrument for sealer placement was important in the SC technique to reduce voids. Regarding LC, the sealer placement techniques provided similar results.

scholarly journals Comparison of Root Filling Quality of Two Types of Single Cone-Based Canal Filling Methods in Complex Root Canal Anatomies: The Ultrasonic Vibration and Thermo-Hydrodynamic Obturation versus Single-Cone Technique

Materials ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6036
Author(s):  
Yong-Sik Cho ◽  
Youngjun Kwak ◽  
Su-Jung Shin
Keyword(s):  
Ultrasonic Vibration ◽  
Root Canal ◽  
Filling Material ◽  
Complex Root ◽  
Micro Computed Tomography ◽  
Root Canal Filling ◽  
Single Cone ◽  
Canal Systems ◽  
Filling Method

This study aimed to assess the effectiveness of ultrasonic vibration and thermo-hydrodynamic obturation (VibraTHO) using two types of root canal sealers, in comparison to the single-cone (SC) technique and a calcium silicate-based root canal sealer in complex root canal anatomies. Thirty single-rooted human maxillary premolars with two canals that had a complex root canal anatomy of transverse anastomoses or ramifications were prepared and assigned to the following three experimental groups, according to the filling method: SE group, SC technique with Endoseal TCS; VE group, VibraTHO with Endoseal TCS; and VG group, VibraTHO with GuttaFlow 2. Each tooth was scanned using micro-computed tomography, and the volume percentages of the filling material were calculated. The analysis of variance was used to analyze the statistical differences between the three groups (p < 0.05). The mean volume of the filling material was higher in the VG and VE groups than that in the SE group (p < 0.05) along the apical to middle-to-coronal thirds, and significant differences were observed between each root canal area (p < 0.05), with the only exception being at the apical thirds between the VE and SE groups. The VibraTHO technique using GuttaFlow 2 can be a more effective root canal filling method for anatomically complex root canal systems than the SC technique with Endoseal TCS. On the other hand, the VibraTHO technique using Endoseal TCS has a limited effect on improving the quality of the root filling at the apical portion of anatomically complex root canal systems, compared to the SC technique with Endoseal TCS.

scholarly journals Quality of Root Canal Filling Using a Bioceramic Sealer in Oval Canals: A Three-Dimensional Analysis

2021 ◽  
Author(s):  
Poliana J. Penha da Silva ◽  
Marília F. Marceliano-Alves ◽  
José C. Provenzano ◽  
Rafaela L. A. Dellazari ◽  
Lucio Souza Gonçalves ◽  
...  
Keyword(s):  
Root Canal ◽  
Three Dimensional ◽  
Nickel Titanium ◽  
Morphological Parameters ◽  
Micro Ct ◽  
Micro Computed Tomography ◽  
Root Canal Filling ◽  
Significant Difference ◽  
Single Cone

Abstract Objectives The oval canals may be associated with inadequate debridement, which can affect the quality of the root canal filling, thus the treatment outcome. The aim of the present work was to compare the quality of oval canals fillings using EndoSequence BC sealer with the single-cone technique or cold lateral compaction. Materials and Methods Thirty-eight human single-rooted premolars with oval canals were instrumented to 1 mm from the apical foramen with hand nickel–titanium files, followed by circumferential filing with Hedstrom files. Teeth were paired into two groups based on their micro-computed tomography (CT) morphological parameters. Both groups were filled using EndoSequence BC sealer. The first used a single cone and the other with the cold lateral compaction technique. The voids volume was evaluated by micro-CT and the percentage was calculated for the total length and for the apical 5 mm of each canal. The Mann–Whitney U test was used to assess whether the surface area and obturation length differed significantly between the groups and to compare the percentage of voids for each technique. Results Both techniques resulted in less than 16% voids, with no statistically significant difference between them for the total canal length and for the apical 5 mm (p > 0.05). Conclusions The quality of the obturation performed with the single-cone technique was similar to that achieved with lateral compaction using EndoSequence BC sealer in oval canals.

scholarly journals In Vivo Comparative Evaluation of Periapical Healing in Response to a Calcium Silicate and Calcium Hydroxide Based Endodontic Sealers

2018 ◽  
Vol 6 (8) ◽  
pp. 1475-1479 ◽  
Author(s):  
Dalia Y. Zaki ◽  
Mohamed H. Zaazou ◽  
Maram E. Khallaf ◽  
Tamer M. Hamdy
Keyword(s):  
Calcium Hydroxide ◽  
Root Canal ◽  
Calcium Silicate ◽  
Negative Control ◽  
Root Canal Filling ◽  
Root Canals ◽  
Filling Materials ◽  
Gutta Percha ◽  
Periapical Healing

BACKGROUND: The composition of the root canal filling materials together with the apical limit of the root canal obturation affect the complete periapical healing after root canal therapy.AIM: This study was performed to evaluate and compare the periapical healing in response to calcium-silicate (iRoot SP) and calcium-hydroxide (Apexit) based-sealers.MATERIAL AND METHODS: Seventy-two upper premolars root canals of six dogs were used. The teeth were randomly assigned to four groups: Group one: roots were obturated using gutta-percha and Apexit-sealer; Group two: roots were obturated using gutta-percha&iRoot SP-sealer; Group three: the teeth were left open without obturation; Group four: where healthy teeth were used as a negative control. Teeth were evaluated after one, two and three months. The newly formed mineralised apical tissue and the periapical inflammatory infiltrate of the obtained photomicrographs were evaluated, and scorings were statistically-analysed.RESULTS: The mean percentage of the periapical inflammatory infiltrates and mineralisation scoring after one, two and three months evaluation period were not significantly different among the four groups (P > 0.05).CONCLUSIONS: Regardless of the sealer used, iRoot SP and Apexit promote healing of periapical tissues. IRoot SP sealer showed early insignificant more partial and almost full healing after two and three months.

scholarly journals Technical Quality of Root Canal Filling in Preclinical Training at Strasbourg University Using Two Teaching Protocols

2019 ◽  
Vol 13 (04) ◽  
pp. 521-526 ◽  
Author(s):  
Naji Kharouf ◽  
Joseph Hemmerlé ◽  
Youssef Haikel ◽  
Davide Mancino
Keyword(s):  
Root Canal ◽  
Technical Quality ◽  
Root Canal Filling ◽  
Root Canals ◽  
Mandibular Molars ◽  
Maxillary Molars ◽  
Chi Squared ◽  
Canal Systems ◽  
Preclinical Training

Abstract Objectives The aim of this study was to compare two teaching protocols according to the technical quality of root canal therapy (RCT) and the procedural errors occurred in preclinical training. Materials and Methods Two different groups of students were concerned. The first one (G1) performed a crown-down technique to shape the root canal systems and cold lateral condensation technique to fill them. The second one (G2) performed a step-down technique without initial manual scouting to shape the root canal systems, and cold hydraulic condensation technique, to fill them. G2 used clinical operative microscope to check the access cavity preparation. Statistical Analysis The quality of RCTs and procedural errors were recorded and analyzed using chi-squared test and t-test. Results Four hundred sixty-eight root canals from 152 maxillary molars were treated by the G1 students: 46.6% canals were judged as acceptable. Four hundred sixty-nine root canals from 152 mandibular molars were treated by G1: 58.8% canals were judged as acceptable. Five hundred fifteen root canals from 156 maxillary molars were treated by G2 students: 84.1% canals were judged as acceptable. Four hundred ninety-three root canals from 156 mandibular molars were treated by G2: 90.9% canals were judged as acceptable. Among the errors, the incidence of “ledges” and “fractured instruments” was statistically significant in G1 compared with G2, both on maxillary and on mandibular molars. Conclusions The molar RCTs performed by G2, who got benefit from the new teaching protocol, resulted in a better quality of root filling and in fewer procedural errors compared with the molar RCTs performed by G1.

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