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

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.

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Comparison of apical sealing ability of resected mineral trioxide aggregate, gutta-percha and a resin-based root canal filling material (resilon)

AFRICAN JOURNAL OF BIOTECHNOLOGY ◽

10.5897/ajb11.599 ◽

2011 ◽

Vol 10 (51) ◽

pp. 10516-10519

Author(s):

Froughreyhani Mohammad ◽

Salem Milani Amin ◽

Rahimi Saeed ◽

Shakouie Sahar ◽

Fateh Somaieh

Keyword(s):

Root Canal ◽

Mineral Trioxide Aggregate ◽

Filling Material ◽

Root Canal Filling ◽

Gutta Percha ◽

Sealing Ability

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

Brazilian Journal of Oral Sciences ◽

10.20396/bjos.v17i0.8654177 ◽

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.

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Efficacy and Cytotoxicity of Binary Mixtures as Root Canal Filling Solvents

Materials ◽

10.3390/ma13143237 ◽

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.

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In-vitro evaluation of apical microleakage of two obturation methods of immature permanent teeth: orthograde apical plug of Mineral Trioxide Aggregate and root canal filling combining custom gutta-percha cone with Calcium Silicate-based sealer

Giornale Italiano di Endodonzia ◽

10.1016/j.gien.2017.09.001 ◽

2017 ◽

Vol 31 (2) ◽

pp. 89-95

Author(s):

Rami Hamdan ◽

Jérôme Michetti ◽

Claire Dionnet ◽

Franck Diemer ◽

Marie Georgelin-Gurgel

Keyword(s):

Root Canal ◽

Calcium Silicate ◽

Mineral Trioxide Aggregate ◽

Permanent Teeth ◽

Root Canal Filling ◽

In Vitro Evaluation ◽

Gutta Percha

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Management of Traumatic Inflammatory External Root Resorption

Journal of College of Medical Sciences-Nepal ◽

10.3126/jcmsn.v15i1.22238 ◽

2019 ◽

Vol 15 (1) ◽

pp. 71-74

Author(s):

Shikha Bantawa ◽

Navin Agrawal ◽

Mannu Vikram ◽

Vimmi Singh ◽

Ashok Ayer ◽

...

Keyword(s):

Root Canal ◽

Root Resorption ◽

Clinical Symptoms ◽

Mineral Trioxide Aggregate ◽

Radiographic Examination ◽

Apical Region ◽

Dental Tissue ◽

Root Canal Filling ◽

Gutta Percha ◽

External Root Resorption

Inflammatory external root resorption is one of the major complications after traumatic dental injury. It is characterized by the loss of mineralized dental tissue which may, ultimately, result in loss of the tooth. However, with appropriate treatment, prognosis for these teeth may be greatly improved, by preventing or arresting resorption. This is a case report of an 18-year-old male patient presented with root canal treated maxillary central incisors associated with pain; with history of trauma. Radiographic examination revealed periradicular lesion and associated pathologic resorption of the apical region of the root with respect to 11 and calcification of the root canal with inadequate obturation with respect to 21. After removal of the root canal filling, 11 was disinfected with intracanal double antibiotic paste. After 2 weeks, antibiotic dressing was removed, and apical third was sealed with mineral trioxide aggregate (MTA). Canal was obturated with custom-fit gutta-percha and accessory cones with AH plus sealer and restoration was done with composite resin. Retreatment was also done with respect to 21 and obturated with custom-fit gutta-percha. Both teeth were restored with E-max crown. No clinical symptoms were apparent, significant osseous healing of the periradicular region was observed with arrest of external root resorption with respect to 11 and no periapical changes were apparent with respect to 21 on subsequent follow-up.

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In-vitro evaluation of apical microleakage of two obturation methods of immature permanent teeth: orthograde apical plug of Mineral Trioxide Aggregate and root canal filling combining custom gutta-percha cone with Calcium Silicate-based sealer

Giornale Italiano di Endodonzia ◽

10.4081/j.gien.2017.25 ◽

2017 ◽

Vol 31 (2) ◽

pp. 89-95

Author(s):

Rami Hamdan ◽

Jérôme Michetti ◽

Claire Dionnet ◽

Franck Diemer ◽

Marie Georgelin-Gurgel

Keyword(s):

Silver Nitrate ◽

Root Canal ◽

Mineral Trioxide Aggregate ◽

Optical Microscope ◽

Permanent Teeth ◽

Root Canal Filling ◽

Filling Materials ◽

Gutta Percha ◽

The Difference

Aim: The aim of this study was to assess whether an obturation, combining a custom guttapercha cone with the BIOROOTTM-RCS sealer, displays similar sealing quality to the orthograde apical plugs of MTA CAPS1 in immature teeth with irregular wide apices. Methodology: Thirty-four immature permanent premolars with apical diameter varying between (1-3 mm) were chosen for this study and were divided into two groups. They were imbedded in wet sponge, which simulated the periapex. In the first group; 5 mm orthograde plugs of MTAwere placed using an appropriate plugger. In the second group; a custom gutta-percha cone was fabricated and used for root canal filling with the BIOROOTTM-RCS sealer. The specimens were stored at 37 8C and 100% humidity during five weeks to allow the complete set of the filling materials. The apical leakage was evaluated using a dye penetration test with 50%-weight silver-nitrate. The teeth were then embedded in a transparent resin and sectioned transversally at 1 and 3 mm from the apex. The slices were examined under optical microscope and were given scores from (0) to (4). When scoring a slice was difficult, spectroscopy for energy dispersion using a scanning electron-microscope was used to confirm the score. The results were compared using the Fisher test with p < 0.05. Results: Silver-nitrate was found in both groups in all slices at 1 mm. At 3 mm, the difference of micro-leakage was not significant. Conclusions: The custom gutta-percha cone combined with BIOROOTtm-RCS sealer displays similar leakage resistance to the orthograde MTA plugs.

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

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.890.275 ◽

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.

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Efficacy of Removing Thermafil and GuttaCore from Straight Root Canal Systems Using a Novel Non-Surgical Root Canal Re-Treatment System: A Micro-Computed Tomography Analysis

Journal of Clinical Medicine ◽

10.3390/jcm10061266 ◽

2021 ◽

Vol 10 (6) ◽

pp. 1266

Author(s):

Vicente Faus-Llácer ◽

Rubén Pérez ◽

Ignacio Faus-Matoses ◽

Celia Ruiz-Sánchez ◽

Álvaro Zubizarreta-Macho ◽

...

Keyword(s):

Root Canal ◽

Treatment System ◽

Filling Material ◽

Micro Computed Tomography ◽

Root Canal Filling ◽

Filling Materials ◽

Gutta Percha ◽

Ct Analysis ◽

Canal Systems ◽

Ah Plus

The present study aims to evaluate the effectiveness of an XP-endo non-surgical root canal re-treatment system in removing both GuttaCore and Thermafil gutta-percha carrier-based root canal filling materials from straight root canal systems using micro-computed tomography (micro-CT) analysis. The study was performed on 20 single-rooted upper teeth, which were randomly allocated into the following study groups: Group A, Thermafil and AH Plus sealer (n = 10); Group B, GuttaCore and AH Plus sealer (n = 10). Before and after the non-surgical root canal re-treatment procedure, the samples were submitted for a micro-CT analysis. The volume of the root canal filling material (mm3), the volume of the remaining root canal filling material (mm3) and the time (minutes) needed to remove the root canal filling material were also recorded. Student’s t-test was used to analyze the results. No statistically significant differences were found between the volume of the remaining root canal filling material in the GuttaCore and Thermafil root canal filling systems at the coronal third (p = 0.782), middle third (p = 0.838) or apical third (p = 0.882) of the straight root canal systems; however, the GuttaCore required a statistically significant (p = 0.037) shorter amount of time (4.72 ± 0.76 min) to be removed than the Thermafil carrier-based root canal filling material (5.92 ± 1.42 min). The XP-endo Finisher non-surgical endodontic re-treatment system removes both GuttaCore and Thermafil gutta-percha carrier-based root canal filling materials from straight root canal systems, although removal of the GuttaCore gutta-percha carrier-based root canal filling material required less time.

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