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Li J, Chen L, Zeng C, Liu Y, Gong Q, Jiang H. Clinical outcome of bioceramic sealer iRoot SP extrusion in root canal treatment: a retrospective analysis. Head Face Med 2022; 18:28. [PMID: 36045447 PMCID: PMC9429671 DOI: 10.1186/s13005-022-00332-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 08/08/2022] [Indexed: 11/10/2022] Open
Abstract
Background During the obturation procedure, sealer extrusion occurs in some cases. iRoot SP is a kind of bioceramic sealer with superior physicochemical and biological properties. This article reports the outcome of iRoot SP extrusion in root canal treatment and the potential factors associated with the outcome. Methods Ninety-nine patients and one hundred and eighty-five teeth treated between 2014 and 2020 were included in this retrospective study. All of the cases were filled with a single-cone technique and the iRoot SP sealer. The minimum follow-up visit period was 1 year. The outcome was evaluated by clinical examination and radiographic examination at recall and was classified as healed, healing (success), or not healed (failure). Results The overall success rate of all teeth was 96.8%. The success rate of adequately filled teeth was 97.3%, while that of iRoot SP extrusion was 95.8%; the difference was not statistically significant. Factors such as gender, age, tooth position, follow-up visit period, size of periapical lesion, treatment type and extruding sealer amount had no influence on the outcome of iRoot SP extruded teeth. Conclusions The results suggested that iRoot SP extrusion has no adverse effect on the outcome of root canal treatment, which may contribute to the endodontic treatment.
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Affiliation(s)
- Jing Li
- Stomatology Department, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Liuchi Chen
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology, 56 Ling Yuan Xi Road, Guangzhou, 510055, Guangdong, China
| | - Chunmei Zeng
- Department of Operative Dentistry and Endodontics, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Yiwen Liu
- Department of Endodontics, Stomatological Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Qimei Gong
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology, 56 Ling Yuan Xi Road, Guangzhou, 510055, Guangdong, China.
| | - Hongwei Jiang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology, 56 Ling Yuan Xi Road, Guangzhou, 510055, Guangdong, China.
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Drukteinis S, Drukteiniene A, Drukteinis L, Martens LC, Rajasekharan S. Flowable Urethane Dimethacrylate-Based Filler for Root Canal Obturation in Primary Molars: A Pilot SEM and microCT Assessment. CHILDREN-BASEL 2021; 8:children8020060. [PMID: 33498353 PMCID: PMC7909394 DOI: 10.3390/children8020060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 01/18/2021] [Accepted: 01/19/2021] [Indexed: 11/16/2022]
Abstract
Pulpectomy in deciduous teeth involves endodontic access opening, root canal debridement and obturation with an appropriate filling material. EndoREZ (ER) is the urethane dimethacrylate-based filler, which can be used for root canal obturation in permanent and primary teeth. This observation aimed to evaluate the behavior of the ER as a filler in root canals of two primary molars after the physiological resorption process using the scanning electron microscopy (SEM) and micro-computed tomography (µCT) in second lower molars after their natural exfoliation. The SEM analysis revealed a non-uniform, porous and lacunary structure of ER, visually similar to the resorbed surface of the dentine. The µCT observations demonstrated the differences in the resorption level of the root and material surfaces. The preliminary observations suggest that ER is resorbed faster than root tissues and can therefore be a suitable material for the root canal filling in primary teeth. However, more investigations are needed to support these preliminary findings.
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Affiliation(s)
- Saulius Drukteinis
- Institute of Dentistry Faculty of Medicine Vilnius University, Zalgirio 115, LT-08217 Vilnius, Lithuania
- Correspondence: ; Tel.: +370-610-41808
| | - Audra Drukteiniene
- Children’s Hospital, Affiliate of Vilnius University Hospital Santaros Klinikos, Santariskiu 7, LT-08406 Vilnius, Lithuania;
| | - Lesbia Drukteinis
- Department of Growth, Development and Structure, Section of Pediatric Dentistry, Southern Illinois University, School of Dental Medicine, Alton, IL 62002, USA;
| | - Luc C. Martens
- Department of Paediatric Dentistry, Ghent University School of Oral Health Sciences, B-9000 Ghent, Belgium; (L.C.M.); (S.R.)
| | - Sivaprakash Rajasekharan
- Department of Paediatric Dentistry, Ghent University School of Oral Health Sciences, B-9000 Ghent, Belgium; (L.C.M.); (S.R.)
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Sealing Ability of Endodontic Cements: An In Vitro Study. Int J Dent 2020; 2020:5862598. [PMID: 32104179 PMCID: PMC7040419 DOI: 10.1155/2020/5862598] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 01/10/2020] [Indexed: 11/23/2022] Open
Abstract
The root canal system must be obturated using a hermetic seal to prevent the penetration of microorganisms and bacterial toxins into the endodontic system. The principles of adhesive dentistry have been increasingly used in endodontics. In fact, resin-based sealers are increasingly used. The objective of this study was to evaluate, in vitro, the sealing ability of resin cement in comparison with calcium hydroxide-based cement. Materials and Methods. Eighty root canals were prepared with the Tilos system and were randomly divided into four groups according to the filling material. The best combination was evaluated on the basis of its sealing ability. The dye infiltration degree was evaluated using both a stereomicroscope after diaphanization and the dye rise test. Results. A significant difference was observed between the four obturation systems with regard to the number of infiltrated walls (p=0.014) and the infiltration depth (p=0.025). The group of teeth obturated with EndoREZ® and EndoREZ® gutta cones differ significantly from the group obturated with EndoREZ® cement and gutta-percha cones in terms of apical sealing (p=0.011). A significant difference was also observed between the group of teeth obturated using EndoREZ® gutta cones and EndoREZ® cement and the group of teeth obturated with EndoREZ® cement (p=0.026). Conclusion. When used with EndoREZ® gutta cones, EndoREZ® cement showed the best sealing ability, particularly in the apical region. When used with gutta-percha cones, Acroseal and EndoREZ® cements exhibited similar sealing abilities.
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Roberts HW, Kirkpatrick TC, Bergeron BE. Thermal analysis and stability of commercially available endodontic obturation materials. Clin Oral Investig 2017; 21:2589-2602. [PMID: 28185092 DOI: 10.1007/s00784-017-2059-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 01/23/2017] [Indexed: 11/28/2022]
Abstract
OBJECTIVES The purpose of this study was to evaluate the thermal stability of 23 commercially-available endodontic obturation materials. MATERIALS AND METHODS Specimens (n = 10) were sealed in aluminum differential scanning calorimetry (DSC) crucibles and subjected to thermal scan series consisting of a 25 to 70 °C at 5 °C/min followed by a rapid increase to 230 °C, followed by a second scan from 25 to 70 °C at 5 °C/min. The first scan evaluated the materials as-received followed by a worse-case-scenario thermal challenge simulating temperatures involved with warm vertical condensation obturation techniques. The second thermal scan observed any phase changes from the high temperature challenge. This two-scan process was repeated twice to observe changes encountered by repeat high heat exposure during obturation. Mean thermal enthalpies were analyzed with Kruskal-Wallis and Games-Howell post-hoc test. (p = 0.05). RESULTS Thermal behavior was material dependent. During the first thermal scan, materials typically demonstrated broad endothermic enthalpy curves suggesting either a gutta-percha phase mixture and/or an alpha crystalline phase. The first high-heat challenge produced definitive alpha/beta thermal phase signatures usually associated with gutta-percha. Changes in beta-phase enthalpies were noted with Therarmafil Plus and UltraFil Firmset while increase in alpha-phases was observed with GuttaCore, K3, Lexicon, and Schein Accessory Points. CONCLUSIONS Commercial endodontic gutta-percha obturation materials displayed thermal characteristics that were material dependent. However, all demonstrated stability at temperatures in excess to that experienced during warm vertical condensation techniques. CLINICAL RELEVANCE The gutta-percha obturation materials evaluated in this evaluation can be used successfully in warm vertical condensation techniques without fear of degradation.
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Affiliation(s)
- H W Roberts
- Graduate Dental Research, 81 Dental Squadron, 606 Fisher Street, Keesler Air Force Base, Biloxi, MS, 39534, USA.
| | - T C Kirkpatrick
- Advanced Education in Endodontics, 81 Dental Squadron, Keesler Air Force Base, Biloxi, MS, USA
| | - B E Bergeron
- Advanced Education in Endodontics, Georgia Regents University School of Dental Medicine, Augusta, GA, USA
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Ormiga F, Ferreira de Assis D, de Andrade Risso P. Ability of Three Endodontic Sealers to Fill the Root Canal System in Association with Gutta-Percha. Open Dent J 2016; 10:12-8. [PMID: 27006719 PMCID: PMC4780516 DOI: 10.2174/1874210601610010012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 11/10/2015] [Accepted: 11/16/2015] [Indexed: 11/22/2022] Open
Abstract
Introduction: The present study compared the ability of the
endodontic sealers AH Plus, Pulp Canal Sealer and EndoREZ to fill the root canal
system in association with gutta-percha. Methods: Ninety
mandibular premolars were accessed, prepared and divided into three groups of 30
teeth each, according to the sealer used to fill the canals: AH Plus, Pulp Canal
Sealer and EndoREZ. All the teeth were filled using the continuous wave of
condensation technique. The specimens were then decalcified, dehydrated,
rendered transparent, and analyzed by three independent evaluators with 8x
magnification. Chi-squared test (χ2, p < 0.05) was used to compare
the groups in relation to the totally filled, the partially filled and the non
filled ramifications. The same test was used to compare the directions of filled
ramifications and the number of ramifications among the three thirds of the
roots. Results: EndoREZ filled a significantly higher
number of ramifications than AH Plus and Pulp Canal Sealer (χ2, p <
0.05). All the groups showed higher number of totally filled ramifications than
partially filled and unfilled ramifications. The ramifications were more
frequently detected in the apical third, followed by medium and coronal thirds,
respectively (χ2, p < 0.05). The ramifications were more frequently
detected towards lingual direction (χ2, p < 0.05). Conclusion: EndoREZ presented higher ability to fill
the root canal system in association with gutta-percha when compared to AH Plus
and Pulp Canal Sealer. The ramifications were more frequently detected in the
apical third, running in a lingual direction.
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Affiliation(s)
- Fabiola Ormiga
- Department of Clinical Dentistry, Federal University of Rio de Janeiro, Brazil
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Collares FM, Klein M, Santos PD, Portella FF, Ogliari F, Leitune VCB, Samuel SMW. Influence of radiopaque fillers on physicochemical properties of a model epoxy resin-based root canal sealer. J Appl Oral Sci 2014; 21:533-9. [PMID: 24473719 PMCID: PMC3891277 DOI: 10.1590/1679-775720130334] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Accepted: 08/23/2013] [Indexed: 11/23/2022] Open
Abstract
Objective To verify the influence of radiopaque fillers on an epoxy resin-based sealer. Material and Methods Experimental sealers were formulated by adding 20%, 40%, 60%, 80%, 100% and 120%
of calcium tungstate, ytterbium trifluoride or barium sulphate by weight to an
epoxy-resin-base. Setting time, flow, film thickness, radiopacity, sorption,
solubility, pH and push-out bond strength were evaluated. Results The setting time ranged from 373 to 612.66 min, the flow varied from 13.81±0.49 to
22.49±0.37 mm, and the film thickness ranged from 16.67±5.77 to 33.33±11.54 µm.
The lowest pH was 5.47±0.53, and the highest was 6.99±0.03. Radiopacity varied
from 0.38±0.04 to 2.57±0.21 mmAl and increased with the amount of filler. Calcium
tungstate sealers had a higher sorption and solubility than other sealers. There
was no significant difference in the push-out bond strength among the fillers at
the 120% concentration. Conclusion The inorganic fillers evaluated and their concentrations affect the
physicochemical properties of an epoxy resin-based root canal sealer.
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Affiliation(s)
- Fabrício Mezzomo Collares
- Universidade Federal do Rio Grande do Sul, School of Dentistry, Department of Conservative Dentistry, Dental Materials Laboratory, Porto AlegreRS, Brazil
| | - Mariana Klein
- Universidade Federal do Rio Grande do Sul, School of Dentistry, Department of Conservative Dentistry, Dental Materials Laboratory, Porto AlegreRS, Brazil
| | - Paula Dapper Santos
- Universidade Federal do Rio Grande do Sul, School of Dentistry, Department of Conservative Dentistry, Dental Materials Laboratory, Porto AlegreRS, Brazil
| | - Fernando Freitas Portella
- Universidade Federal do Rio Grande do Sul, School of Dentistry, Department of Conservative Dentistry, Dental Materials Laboratory, Porto AlegreRS, Brazil
| | - Fabrício Ogliari
- Universidade Federal de Pelotas, School of Materials Engineering, PelotasRS, Brazil
| | - Vicente Castelo Branco Leitune
- Universidade Federal do Rio Grande do Sul, School of Dentistry, Department of Conservative Dentistry, Dental Materials Laboratory, Porto AlegreRS, Brazil
| | - Susana Maria Werner Samuel
- Universidade Federal do Rio Grande do Sul, School of Dentistry, Department of Conservative Dentistry, Dental Materials Laboratory, Porto AlegreRS, Brazil
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Li GH, Niu LN, Zhang W, Olsen M, De-Deus G, Eid AA, Chen JH, Pashley DH, Tay FR. Ability of new obturation materials to improve the seal of the root canal system: a review. Acta Biomater 2014; 10:1050-1063. [PMID: 24321349 DOI: 10.1016/j.actbio.2013.11.015] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2013] [Revised: 11/18/2013] [Accepted: 11/20/2013] [Indexed: 11/25/2022]
Abstract
New obturation biomaterials have been introduced over the past decade to improve the seal of the root canal system. However, it is not clear whether they have really produced a three-dimensional impervious seal that is important for reducing diseases associated with root canal treatment. A review of the literature was performed to identify models that have been employed for evaluating the seal of the root canal system. In vitro and in vivo models are not totally adept at quantifying the seal of root canals obturated with classic materials. Thus, one has to resort to clinical outcomes to examine whether there are real benefits associated with the use of recently introduced materials for obturating root canals. However, there is no simple answer because endodontic treatment outcomes are influenced by a host of other predictors that are more likely to take precedence over the influence of obturation materials. From the perspective of clinical performance, classic root filling materials have stood the test of time. Because many of the recently introduced materials are so new, there is not enough evidence yet to support their ability to improve clinical performance. This emphasizes the need to translate anecdotal information into clinically relevant research data on new biomaterials.
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In Vitro Biocompatibility Evaluation of a Root Canal Filling Material That Expands on Water Sorption. J Endod 2013; 39:883-8. [DOI: 10.1016/j.joen.2013.03.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2012] [Revised: 02/23/2013] [Accepted: 03/03/2013] [Indexed: 01/09/2023]
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Kuga MC, Só MVR, De Campos EA, Faria G, Keine KC, Dantas AAR, Faria NB. Persistence of endodontic methacrylate-based cement residues on dentin adhesive surface treated with different chemical removal protocols. Microsc Res Tech 2012; 75:1432-6. [PMID: 22718396 DOI: 10.1002/jemt.22086] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2012] [Accepted: 05/13/2012] [Indexed: 11/09/2022]
Abstract
The aim of this study was to evaluate the persistence of methacrylate-based cement residues on the dentin, after dentin surface cleaning with ethanol or acetone, with or without previous application of a dentin adhesive. Forty bovine crown fragments were obtained and the dentin surface was washed with 1.0 mL of 2.5% sodium hypochlorite (NaOCl), followed by 0.1 mL of 17% ethylenediaminetetraacetic acid application for 3 min, and final irrigation with 2.5% NaOCl. The specimens were air dried and resin-based cement was rubbed onto the dentine surface with a microbrush applicator. In 20 specimens, previously to cement, a dentin adhesive was applied in all surfaces. After 15 min, the surface was scrubbed with a cotton pellet and moistened with ethanol or acetone, compounding the following groups: G1-99.5% ethanol and G2-acetone, without previous use of dentin adhesive; G3-99.5% ethanol and G4-acetone, with previous use of dentin adhesive. The dentin surface was scrubbed until the cement residues could not be visually detected. Sections were then processed for scanning electron microscopy and evaluated at 500× magnification and scores were attributed to each image according to the area covered by residual sealer, and data were subjected to Kruskal-Wallis at 5% significance. The lower residue presence was observed in G3 (P = 0.005). All surface presented cement residues when acetone was used as cleaning solution (P = 0.0005). The cleaning solutions were unable to completely remove the cement residues from both surfaces. The ethanol used after previous application of the dentin adhesive promoted the lower presence of residues.
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Affiliation(s)
- Milton Carlos Kuga
- Department of Restorative Dentistry, Araraquara Dental School, UNESP-University of Estadual Paulista, Araraquara, Sao Paulo, Brazil.
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Clinical and radiographic evaluation of a resin-based root canal sealer: 10-year recall data. Int J Dent 2012; 2012:763248. [PMID: 22654909 PMCID: PMC3359696 DOI: 10.1155/2012/763248] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Accepted: 03/05/2012] [Indexed: 11/17/2022] Open
Abstract
Objectives. This retrospective clinical and radiographical study evaluated the 10-year outcome of one-visit endodontic treatment with gutta-percha and a methacrylate resin-based sealer. Methods. From an initial sample size of 180 patients, 89 patients with 175 root canals responded to a recall. Treatment outcome was based on predetermined clinical and radiographic criteria. Results. Root canals had been adequately filled to the working length in 80 teeth (89.88%), short in 6 instances (6.74%), while 3 (3.37%) with extrusion immediate postoperatively, showed no sealer in periradicular tissues. The difference in the outcomes of treatments with respect to age, gender, preoperative pulp or periapical status, the size of periapical lesions and the type of permanent restorations were not statistically significantly different (P > 0.05). Overall, 7 (7.86%) cases were considered clinically and radiographically a failure. A life table analysis showed a cumulative probability of success of 92.13% after 10 years with a 95% confidence interval of 83.0 to 94.0. Conclusions. The results of this retrospective clinical and radiographical study suggest that the tested methacrylate-resin based sealer used with gutta-percha performed similarly to other root canal sealers over a period 10 years. Clinical Implications. Considering the success rate after 10 years of this methacrylate resin-based sealer can be recommended as an alternative to other commonly used root canal sealers.
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No Evidence for DNA Double-strand Breaks Caused by Endodontic Sealers. J Endod 2012; 38:636-41. [DOI: 10.1016/j.joen.2011.12.037] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2011] [Revised: 12/26/2011] [Accepted: 12/27/2011] [Indexed: 11/20/2022]
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A Novel Urethane Acrylate–based Root Canal Sealer with Improved Degree of Conversion, Cytotoxicity, Bond Strengths, Solubility, and Dimensional Stability. J Endod 2011; 37:246-9. [DOI: 10.1016/j.joen.2010.11.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2010] [Revised: 11/05/2010] [Accepted: 11/06/2010] [Indexed: 11/23/2022]
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