scholarly journals What’s new for the clinician? - Excerpts from and summaries of recently published papers

2021 ◽  
Vol 76 (2) ◽  
pp. 96-99
Author(s):  
Veerasamy Yengopal
Keyword(s):  
Root Canal ◽  
Root Canal Treatment ◽  
Root Canal Filling ◽  
Single Visit ◽  
Gutta Percha ◽  
Luting Agent ◽  
Molar Teeth ◽  
Ah Plus ◽  
Periapical Inflammation

Choosing an endodontic sealer clinical use is a decision that contributes to the long-term success of non-surgical root canal treatment. Sealers are used as a thin tacky paste which function as a lubricant and luting agent during obturation, allowing the core obturation material, such as gutta-percha points or other rigid materials, to slide in and become fixed in the canal. Sealers can fill voids, lateral canals, and accessory canals where core obturation materials cannot infiltrate. If the sealer does not perform its function, microleakage may cause root canal failure via clinically undetectable passage of bacteria, fluids, molecules or ions between the tooth and restorative material. It has been reported that extrusion of the sealer during root canal filling has cytotoxic effects on periapical tissues, causing periapical inflammation, necrosis and pain. Endodontic sealers are categorized by composition based on setting reaction and composition: zinc oxide eugenol, salicylate, fatty acid, glass ionomer, silicone, epoxy resin, tricalcium silicate, and methacrylate resin sealer systems. Aslan & Özkan (2021) reported on a trial that sought to evaluate the effect of two calcium silicate-based root canal sealers, Endoseal MTA and EndoSequence BC Sealer, on postoperative pain following single-visit root canal treatment on molar teeth compared to their epoxy/ amine resin-based counterpart AH Plus. The null hypotheses tested in this study were as follows:1. The type of sealer used would not change the incidence and the intensity of post-treatment endodontic pain2. The analgesic intake of patients following single-visit root canal treatment

scholarly journals Influence of Two Root Canal Obturation Techniques with Resin Based Sealer to Enterococcus faecalis Penetration

2019 ◽  
Vol 1 (2) ◽  
pp. 55
Author(s):  
Aryadi Subrata ◽  
Anastasia Elsa Prahasti ◽  
Bernard Ongki Iskandar
Keyword(s):  
Enterococcus Faecalis ◽  
Root Canal ◽  
Root Canal Treatment ◽  
Root Canal Filling ◽  
Gutta Percha ◽  
Single Cone ◽  
Ah Plus ◽  
Bacterial Leakage ◽  
Warm Vertical Compaction

Introduction: Root canal treatment is done to maintain the teeth to last as long as possible in the oral cavity. This can be done with three main stages, such as biomechanical preparation, sterilization and root canal filling. The hermetic seal of root canal filling has an important role in the success of root canal treatment. Objective: The aim of this in-vitro study is to compare the microbial leakage of root canals filled with RealSeal sealer/Resilon Points and AH Plus sealer/conventional gutta-percha points using single cone obturation technique and warm vertical compaction technique. Methods: Thirty-two extracted human mandibular premolars with single canals were decoronated to a standardized root length of 15 mm and prepared using crown-down technique to a master apical file size 30/.09. Teeth were divided into four experimental groups (n = 7 each group) and controls (n = 1 each group). Teeth in the first group were obturated using single master gutta percha cone and AH Plus sealer and second group were obturated with single Resilon gutta percha cone using RealSeal sealer. Third experimental group was filled with warm vertical condensed gutta-percha using AH Plus sealer and fourth group was filled with warm vertical condensed Resilon gutta-percha using RealSeal sealer. The coronal chamber of each sample were inoculated with Enterococcus faecalis. Results: There were no significant differences between the four experimental groups (P = 0.182). The differences occurred only in the survival time from each group. Group 4 (Warm Vertical Condensation - RealSeal) has the lowest leakage rate among other groups and the fastest leakage occurred in group 1 (Single Cone - AH Plus). Conclusion: The single-cone techniques does not insure durable apical seal against bacterial leakage. Warm vertical compaction technique using Resilon gutta-percha and RealSeal sealer appears to be more effective in minimizing bacterial leakage than gutta-percha and AH Plus sealer.

scholarly journals Influence of Two Root Canal Obturation Techniques with Resin Based Sealer to Enterococcus faecalis Penetration

2019 ◽  
Vol 2 (1) ◽  
pp. 21
Author(s):  
Aryadi Subrata ◽  
Anastasia Elsa Prahasti ◽  
Bernard Ongki Iskandar
Keyword(s):  
Enterococcus Faecalis ◽  
Root Canal ◽  
Root Canal Treatment ◽  
Root Canal Filling ◽  
Gutta Percha ◽  
Single Cone ◽  
Ah Plus ◽  
Bacterial Leakage ◽  
Warm Vertical Compaction

  Introduction: Root canal treatment is done to maintain the teeth to last as long as possible in the oral cavity. This can be done with three main stages, such as biomechanical preparation, sterilization and root canal filling. The hermetic seal of root canal filling has an important role in the success of root canal treatment.   Objective: The aim of this in-vitro study is to compare the microbial leakage of root canals filled with RealSeal sealer/Resilon Points and AH Plus sealer/conventional gutta-percha points using single cone obturation technique and warm vertical compaction technique.   Methods: Thirty-two extracted human mandibular premolars with single canals were decoronated to a standardized root length of 15 mm and prepared using crown-down technique to a master apical file size 30/.09. Teeth were divided into four experimental groups (n = 7 each group) and controls (n = 1 each group). Teeth in the first group were obturated using single master gutta percha cone and AH Plus sealer and second group were obturated with single Resilon gutta percha cone using RealSeal sealer. Third experimental group was filled with warm vertical condensed gutta-percha using AH Plus sealer and fourth group was filled with warm vertical condensed Resilon gutta-percha using RealSeal sealer. The coronal chamber of each sample were inoculated with Enterococcus faecalis.   Results: There were no significant differences between the four experimental groups (P = 0.182). The differences occurred only in the survival time from each group. Group 4 (Warm Vertical Condensation - RealSeal) has the lowest leakage rate among other groups and the fastest leakage occurred in group 1 (Single Cone - AH Plus).   Conclusion: The single-cone techniques does not insure durable apical seal against bacterial leakage. Warm vertical compaction technique using Resilon gutta-percha and RealSeal sealer appears to be more effective in minimizing bacterial leakage than gutta-percha and AH Plus sealer.

scholarly journals Long-term evaluation of crown and root discoloration induced by different endodontic sealers

2018 ◽  
Vol 17 ◽  
pp. e18483
Author(s):  
Beatriz Serrato Coelho ◽  
Paula Pontes Garcia ◽  
Flávia Sens Fagundes Tomazinho ◽  
Leonardo Fernandes Cunha ◽  
Denise Piotto Leonardi ◽  
...  
Keyword(s):  
Analysis Of Variance ◽  
Root Canal ◽  
The Other ◽  
Tooth Crown ◽  
Root Canal Filling ◽  
Color Changes ◽  
Term Evaluation ◽  
Ah Plus ◽  
Endodontic Sealers

Aim: To evaluate crown and root discoloration promoted by different endodontic sealers after root canal filling. Methods: Eighty bovine incisors were prepared and filled with: Endofill, Sealer 26, AH Plus, and MTA Fillapex. Color was recorded using a spectrophotometer before endodontic treatment (T0) and at 24 hours (T1), seven days (T2), 30 days (T3), and 90 days (T4) after treatment. Analyses were performed on the middle and cervical regions of the crown, and on the cervical third of the root, immediately below the cementoenamel junction. The color alterations (ΔE) were calculated using Commission International de I’Eclairage (CIE) L*a*b parameters, and data were analyzed by analysis of variance (ANOVA) and Tukey’s test (p<0.05). Results: All sealers induced color alterations. Sealer 26 resulted in the smallest changes in color (E = 5.32). The other materials did not present statistical differences (AH Plus E = 6.98; MTA Fillapex E = 6.88; Endofill E = 6.41). Of the three regions analyzed, the largest discoloration was observed at the cervical third of the root (E=10.67). In terms of time, the largest ΔE values (E=7.72) were observed at T4. Color changes at T1 (E=5.88), T2 (E=6.10), and T3 (E=5.89) were statistically similar. Conclusions: All endodontic sealers promoted discoloration on the tooth crown and root.

scholarly journals Sealing Ability of AH Plus and GuttaFlow Bioseal

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Soo-Hyuk Lee ◽  
Soram Oh ◽  
Adel Saeed Al-Ghamdi ◽  
Ayman Omar Mandorah ◽  
Kee-Yeon Kum ◽  
...  
Keyword(s):  
Fluid Flow ◽  
Root Canal ◽  
Glass Ceramics ◽  
Filling Material ◽  
Root Canal Filling ◽  
Measuring Device ◽  
Gutta Percha ◽  
Sealing Ability ◽  
Ah Plus ◽  
The Mean

The objective of root canal obturation is to achieve a fluid-tight seal. Recently, GuttaFlow bioseal (GB), a root canal sealer composed of polydimethylsiloxane, gutta-percha particles, and bioactive glass ceramics, has been developed, to enhance the sealing ability of root canal filling material. The objective of this study was to assess the sealing ability of GB using a subnanoliter-scaled fluid-flow measuring device and to compare with that of AH Plus (AH). The fluid flow in root canal-filled teeth using either gutta-percha cone (GP) with AH (GAR; n = 10) or GP with GB (GBR; n = 10) and in GP inserted in AH blocks (GA; n = 10) or GP inserted in GB blocks (GB; n = 10) was measured. In addition, fluid flow in sealer blocks of AH (A; n = 10) and GB (B; n = 10), which served as negative controls, was measured. Root canal-filled teeth using GP without any sealer (GR) acted as positive controls (n = 10). The leakage was obtained by calculating the volume of moved water by time (s), after stabilization of the fluid flow was achieved. Statistical analysis was performed using the Kruskal–Wallis test and Mann–Whitney U-test with Bonferroni correction. A p value less than 0.00238 (0.05/21) was considered significantly different. The mean leakages (nL/s) in the groups are as follows: GAR, 0.0958 ± 0.0543; GBR, 0.0223 ± 0.0246; GA, 0.0644 ± 0.0803; GB, 0.0267 ± 0.0182; A, 0.0055 ± 0.0057; B, 0.0052 ± 0.005; and GR, 0.2892 ± 0.3018. The mean leakage in the GBR group was lower than that in the GAR group (p = 0.001), while the mean leakages in the GA and GB groups were not significantly different. GuttaFlow bioseal can be useful in single-cone obturation technique.

scholarly journals Effect of a sonic device on bonding of fiberglass posts to root canals

2018 ◽  
Vol 17 ◽  
pp. e18924
Author(s):  
Marina de Almeida Salim ◽  
Thais Mageste Duque ◽  
Heloisa Carla Dell Santo Gusman ◽  
Carolina Oliveira de Lima ◽  
Brenda Paula Figueiredo de Almeida Gomes ◽  
...  
Keyword(s):  
Root Canal ◽  
Adhesive System ◽  
Resin Cement ◽  
Root Canal Filling ◽  
Root Canals ◽  
Gutta Percha ◽  
Ah Plus ◽  
Root Dentin ◽  
Post Hoc ◽  
Adhesive Cement

Aim: This study evaluated the effect of a sonic device on the bonding of fiberglass posts cemented with a self-etching adhesive combined with conventional cement or a self-adhesive cement to root dentin. Methods: Forty single-rooted bovine incisors were endodontically prepared using a step-back technique. Gutta-percha and AH Plus sealer were used for root canal filling, combined with a thermoplasticization technique. After 1 week, the post space was prepared and the roots were divided into four groups according to the following factors: adhesive system/resin cement (Ambar/ AllCem Core [FGM] and RelyX U200 [3M]) and application mode (manual or sonic). The posts were cemented and the roots were cut into discs and submitted to push-out bond strength (POBS) test. The failure mode was evaluated using a stereoscope at 25x magnification. The data were analyzed statistically using ANOVA and Tukey’s post-hoc test (α = 0.05). Results: The sonically activated RelyX U200 group was superior to the other groups. RelyX U200 manually applicated showed similar results to those of sonically activated Âmbar/AllCem. These three groups outperformed the Âmbar/AllCem manually applicated group. Adhesive failure between dentin and resin cement was the most predominant pattern. Conclusion: Sonic application of self-etching adhesive and self-adhesive cement improved the POBS of fiber posts to the root canal.

scholarly journals Efficacy and Cytotoxicity of Binary Mixtures as Root Canal Filling Solvents

Materials ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3237
Author(s):  
Inês Ferreira ◽  
Liliana Grenho ◽  
Pedro Gomes ◽  
Ana Cristina Braga ◽  
Maria Helena Fernandes ◽  
...  
Keyword(s):  
Root Canal ◽  
Mechanical Analysis ◽  
Single Step ◽  
Solvent Mixtures ◽  
Root Canal Filling ◽  
Orange Oil ◽  
Gutta Percha ◽  
Step Procedure ◽  
Ah Plus ◽  
New Compounds

Objectives: This study reports the efficacy of two solvent mixtures on the dissolution of gutta-percha and AH Plus sealer, together with the cytotoxicity. Methods: Methyl ethyl ketone (MEK), orange oil, tetrachloroethylene, MEK/tetrachloroethylene (1:1), MEK/orange oil (1:1), and chloroform (control) were tested. Twelve groups (n = 15) of standardized stainless-steel molds filled with softened gutta-percha cones and twelve (n = 15) filled with AH Plus were immersed in the corresponding mixture or individual solvent, in an ultrasonic bath, for either 2 or 5 min. The effect of the solvents was assessed qualitatively by a topographical analysis (scanning electron microscopy) and chemical analysis (Fourier transform infrared spectroscopy), and quantitatively by a weight loss and viscoelastic property (dynamic mechanical analysis) evaluation. The cytotoxicity was assessed on MG63 human osteoblastic cells. Results: The mixtures did not show the formation of new compounds. Both presented significantly higher efficacies compared to their individual solvents, suggesting a synergistic effect. Their dissolution efficacy was similar to that of chloroform, showing high cytocompatibility. Conclusions: The proposed strategy, incorporating ultrasound agitation and profiting from the synergy of adequate solvents, might enhance root canal cleanliness allowing a single-step procedure to dissolve gutta-percha and the sealer remnants, while assuring cytocompatibility with the periapical tissues.

scholarly journals Comparison of root canal filling quality by mineral trioxide aggregate and gutta percha cones/AH plus sealer

2016 ◽  
Vol 35 (4) ◽  
pp. 644-650 ◽  
Author(s):  
Wonkyung JHO ◽  
Jeong-Won PARK ◽  
Euiseong KIM ◽  
Minju SONG ◽  
Deok-Gyu SEO ◽  
...  
Keyword(s):  
Root Canal ◽  
Mineral Trioxide Aggregate ◽  
Root Canal Filling ◽  
Gutta Percha ◽  
Ah Plus

scholarly journals Evaluation of Root Canal Filling with a Bioceramic Sealer Using Micro-Computed Tomography: A Pilot Study

2019 ◽  
Vol 890 ◽  
pp. 275-282
Author(s):  
Isabel Vasconcelos ◽  
Mário Rito Pereira ◽  
António Ginjeira ◽  
Margarida C. Franco ◽  
Pedro Morouço ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Pilot Study ◽  
Root Canal ◽  
Future Research ◽  
Micro Ct ◽  
Micro Computed Tomography ◽  
Root Canal Filling ◽  
Gutta Percha ◽  
Single Cone ◽  
Ah Plus

This pilot study aims to define a protocol for optimizing the micro-computed tomography (micro-CT) settings to evaluate in the future research the root canal filling in oval shaped canals. Thirty distal canals of mandibular molars were used. After preparation of the canals, the roots were randomly divided into five groups. The canals were filled with two types of sealers (Endosequence BC Sealer or AH Plus) and two types of gutta percha (Protaper Next cones and Endosequence BC cones), using thermal obturation in comparison with a single cone obturation technique. Each specimen was scanned three times using a micro-CT device at a resolution of 30,1 μm. The first scan was done for selecting the specimen according the inclusion criteria, the second one post-instrumentation and the last micro-CT scan after obturation the specimens. For the present study, the images were only evaluated with qualitative criteria and the settings for acquisition, reconstruction and analysis of micro-CT images were tested.

scholarly journals Removal of Gutta-Percha from the Root Canals using Three Different Rotary Files

2013 ◽  
Vol 01 (03) ◽  
pp. 159-162
Author(s):  
Harleen Gill ◽  
Ajay Chhabra ◽  
Varun Jindal ◽  
Ankur Vats ◽  
Gurkirat Grewal
Keyword(s):  
Root Canal ◽  
Root Canal Treatment ◽  
Canal System ◽  
Root Canals ◽  
Gutta Percha ◽  
Rotary Instruments ◽  
Debris Removal ◽  
Ah Plus ◽  
Root Canal System ◽  
Endodontic Retreatment

AbstractIn case of failed root canal treatment endodontic retreatment of the root canal system is necessary. The aim of the present study was to compare the gutta-percha removal with Protaper retreatment files (Dentsply Maillefer, Ballaigues, Switzerland), K3 (SybronEndo) and Hero Shapers (MicroMega, Besancon, France). Method: Thirty freshly extracted human single rooted teeth were prepared with ProTaper rotary instruments up to file F3 andfilled with 30 # GP cones and AH plus sealer. The teeth were then stored for 1 week. The teeth were divide into 3 retreatment groups (n=10). The gutta-percha was removed using Protaper retreatment files, K3 and Hero Shapers. Teeth were then evaluated using radiographs. Results: Comparing the ratio between clean canals Protaper and K3 showed better debris removal as compared to Hero shaper. But no significance difference was found.

Root canal filling in primary molars without successors: Mineral trioxide aggregate versus gutta-percha/AH-Plus

2015 ◽  
Vol 42 (2) ◽  
pp. 73-81 ◽  
Author(s):  
Tugba Bezgin ◽  
Betul Memiş Ozgul ◽  
Volkan Arikan ◽  
Saziye Sari
Keyword(s):  
Root Canal ◽  
Mineral Trioxide Aggregate ◽  
Primary Molars ◽  
Root Canal Filling ◽  
Gutta Percha ◽  
Ah Plus
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