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Hakke Patil A, Patil AG, Shaikh S, Bhandarkar S, Moharir A, Sharma A. Comparative Evaluation of the Sealing Ability of Mineral Trioxide Aggregate (MTA)-Based, Resin-Based, and Zinc Oxide Eugenol Root Canal Sealers: An In Vitro Study. Cureus 2024; 16:e52201. [PMID: 38347990 PMCID: PMC10860369 DOI: 10.7759/cureus.52201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/13/2024] [Indexed: 02/15/2024] Open
Abstract
Root canal therapy is a crucial procedure in endodontics that is done to achieve complete obliteration of the root canal space. The success of this therapy depends on achieving a proper seal, which is facilitated using root canal sealers. This study aimed to compare the apical sealing ability of three different root canal sealers: MTA Fillapex, AH Plus, and zinc oxide eugenol (ZOE), using the dye penetration method. Forty freshly extracted single-rooted human maxillary incisors were collected and prepared for the study. The root canals were instrumented using the ProTaper system, and the canals were then obturated using the lateral condensation technique with the respective sealers. After one week of storage, the samples were coated with nail varnish, immersed in a rhodamine B dye solution, and then sectioned longitudinally. The depth of dye penetration was measured, and the results were analyzed statistically. The results revealed significant differences in apical leakage among the three experimental groups. Group 2 (AH Plus) showed the minimum leakage with a mean of 0.13 mm, while Group 4 (no sealer) exhibited the maximum leakage with a mean of 4.49 mm. Group 3 (ZOE) showed an intermediate level of leakage with a mean of 2.37 mm. The statistical analysis confirmed the significant difference in mean leakage among the groups. The findings of this study indicate that AH Plus exhibited superior apical sealing ability compared to MTA Fillapex and ZOE. AH Plus is a resin-based sealer known for its dimensional stability. On the other hand, MTA Fillapex, a newly introduced sealer containing mineral trioxide aggregate, resin, and silica, showed promising sealing properties but had slightly higher leakage compared to AH Plus. ZOE, a traditional sealer, demonstrated relatively higher leakage than the other sealers. In conclusion, choosing a root canal sealer is crucial in achieving a successful endodontic treatment outcome. AH Plus demonstrated superior apical sealing ability among the three sealers tested. Further research and long-term clinical studies are warranted to validate these findings and assess the impact of sealer choice on treatment outcomes and post-endodontic healing.
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Affiliation(s)
- Anuja Hakke Patil
- Department of Conservative Dentistry and Endodontics, DY Patil Dental School, Pune, IND
| | - Amey G Patil
- Department of Restorative Dentistry, Rutgers School of Dental Medicine, Newark, USA
| | - Sabina Shaikh
- Department of Conservative Dentistry and Endodontics, DY Patil Dental School, Pune, IND
| | - Sailee Bhandarkar
- Department of Endodontics, Mahatma Gandhi Vidyamandir's Karmaveer Bhausaheb Hiray Dental College and Hospital, Nashik, IND
| | - Anuja Moharir
- Department of Periodontology, DY Patil Dental School, Pune, IND
| | - Anupam Sharma
- Department of Conservative Dentistry and Endodontics, Bharati Vidyapeeth Dental College and Hospital, Pune, IND
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Schick F, Lechner J, Notter F. Linking Dentistry and Chronic Inflammatory Autoimmune Diseases – Can Oral and Jawbone Stressors Affect Systemic Symptoms of Atopic Dermatitis? A Case Report. Int Med Case Rep J 2022; 15:323-338. [PMID: 35782227 PMCID: PMC9242433 DOI: 10.2147/imcrj.s367434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 06/09/2022] [Indexed: 11/23/2022] Open
Abstract
Background This case report demonstrates the value of ultrasound measurements, and immunological and toxicological diagnostics in addition to current x-ray imaging procedures to diagnose hidden oral and maxillofacial infections. Using a clear scheme shows the procedure of the authors’ steps. The positive impact on the patient’s dermatological clinical picture is shown. Functional regeneration using metal-free ceramic implants and autologous bone augmentation is demonstrated. After a healing period, a postoperative control took place. Question Are chronic inflammatory and chronic toxic stressors from the oral region affecting the patient’s state of health and dermatological symptoms? Patients and Methods A 52 year old female suffering from neurodermatitis, who had been therapy-resistant for several years, was rehabilitated by oral surgery and prosthetics. Radiological examinations with orthopantomogram (OPG) and three-dimensional imaging (DVT/CBCT) were inconclusive for possible jawbone inflammatory sites. Immunological, toxicological diagnostics and trans-alveolar bone densitometry with ultrasound (TAU), were able to show immunological and toxicological stressors and areas of reduced bone density. Bone densitometry with ultrasound raised the suspicion of silent inflammations in the jawbone with potentially increased cytokine levels. Results For the patient incompatible materials, teeth with increased toxin exposure and surrounding softened, fatty, ischaemic bone was removed. Histologies and cytokine profiles were obtained. The resulting defects were functionally regenerated using ceramic implants and autologous augmentation. The cytokine profiles showed significantly elevated RANTES/CCL5, confirming the need for surgical intervention. The patient’s atopic dermatitis improved significantly in this case. Summary Individualized immunological and toxicological diagnostics and trans-alveolar bone density bone densitometry with ultrasound (TAU) identified immunological and toxicological stressors as well as reduced bone density with increased cytokine levels. A therapy-resistant neurodermatitis improved significantly after treatment. Conclusion This case report illustrates the need for patient-specific and individualized examinations that link dentistry more closely with other medical conditions in order to clarify possible interactions.
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Affiliation(s)
- Fabian Schick
- Clinic for Integrative Dentistry, Munich, Germany
- Correspondence: Fabian Schick, Clinic for Integrative Dentistry, Gruenwalder Str. 10A, Munich, 81547, Germany, Tel +49 89 697 00 55, Email
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Dioguardi M, Alovisi M, Sovereto D, Troiano G, Malagnino G, Di Cosola M, Cazzolla AP, Laino L, Lo Muzio L. Sealing ability and microbial leakage of root-end filling materials: MTA versus epoxy resin: A systematic review and meta-analysis. Heliyon 2021; 7:e07494. [PMID: 34401555 PMCID: PMC8353296 DOI: 10.1016/j.heliyon.2021.e07494] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 05/27/2021] [Accepted: 07/02/2021] [Indexed: 01/30/2023] Open
Abstract
Objectives The purpose of this systematic review of the literature is to investigate which of the epoxy-based cements and those based on Tricalciumsilicate (MTA, Bioceramic) have the best sealing capacity through the analysis of studies that have provided a survey model in vitro of bacteria leakage. Source The articles were identified using electronic databases such as PubMed, Scopus, the search was conducted between 8.12.2020 and 31.12.2020 and a last search was conducted on 2.12.2021. Study selection 678 records were identified and after removing the duplicates we obtain 481 records, with the first phase of screening and selection of records we reached 204 and with the application of the inclusion and exclusion criteria we selected 31 articles, only 9 studies made a direct comparison between the two endodontic cement categories and presented data that could be included in the metaanalysis. Data The meta-analysis of first outcome shows an odds ratio of 2.70 C.I.(Confidence Interval) [1.54, 4.73], the test for overall effect has a p value = 0.0005 with a heterogeneity index of I 2 of 9%; The second outcome meta-analysis shows an Odds Ratio of 1.50 C.I. (Confidence Interval) [0.92, 2.46] with a p value of 0.10 with an I 2 of 79%. Conclusion the sealing ability is higher for epoxy resins than for tricalcium silicate-based cements, for observation periods longer than 90 days. Clinical relevance The knowledge of the cement that determines the best sealing ability and resistance to microbial leakage, can be of help for the dentist who has to face clinical situations such as endodontic retreatments whose failure is determined by the persistence of bacteria in the endodontic canals.
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Affiliation(s)
- Mario Dioguardi
- Department of Clinical and Experimental Medicine, University of Foggia, Via Rovelli 50, 71122, Foggia, Italy
| | - Mario Alovisi
- Department of Surgical Sciences, Dental School, University of Turin, Turin, Italy
| | - Diego Sovereto
- Department of Clinical and Experimental Medicine, University of Foggia, Via Rovelli 50, 71122, Foggia, Italy
| | - Giuseppe Troiano
- Department of Clinical and Experimental Medicine, University of Foggia, Via Rovelli 50, 71122, Foggia, Italy
| | - Giancarlo Malagnino
- Department of Clinical and Experimental Medicine, University of Foggia, Via Rovelli 50, 71122, Foggia, Italy
| | - Michele Di Cosola
- Department of Clinical and Experimental Medicine, University of Foggia, Via Rovelli 50, 71122, Foggia, Italy
| | - Angela Pia Cazzolla
- Department of Clinical and Experimental Medicine, University of Foggia, Via Rovelli 50, 71122, Foggia, Italy
| | - Luigi Laino
- Multidisciplinary Department of Medical-Surgical and Odontostomatological Specialties, University of Campania "Luigi Vanvitelli", 80121, Naples, Italy
| | - Lorenzo Lo Muzio
- Department of Clinical and Experimental Medicine, University of Foggia, Via Rovelli 50, 71122, Foggia, Italy
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Silva EJNL, Ferreira CM, Pinto KP, Barbosa AFA, Colaço MV, Sassone LM. Influence of variations in the environmental pH on the solubility and water sorption of a calcium silicate-based root canal sealer. Int Endod J 2021; 54:1394-1402. [PMID: 33829659 DOI: 10.1111/iej.13526] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 04/05/2021] [Indexed: 02/06/2023]
Abstract
AIM To evaluate the influence of pH variation on the solubility and water sorption of a premixed calcium silicate-based root canal sealer (EndoSequence BC Sealer) compared to the gold standard based on epoxy resin (AH Plus Jet) after immersion in distilled water and phosphate-buffered saline (PBS). METHODOLOGY Solubility and water sorption were evaluated after immersion in distilled water or PBS at several pHs (5, 7 and 12) and the values were calculated as percentages of the original mass after 24 h, 7 and 30 days of immersion. The crystalline structures present in the sealers and surface precipitates were assessed by X-ray diffraction. The Shapiro-Wilk's test revealed that data were normally distributed; thus, statistical analysis was performed using one-way anova and Tukey's tests or independent t-test, assuming a 5% α-error. RESULTS EndoSequence BC Sealer was associated with significantly greater water sorption and solubility compared to AH Plus Jet in all tested conditions (P < 0.05). The acid environment increased the 24 h solubility of EndoSequence BC Sealer immersed in PBS (P < 0.05) and did not induce significative changes in the water sorption (P > 0.05). Alkaline pH reduced the solubility of EndoSequence BC Sealer and increased that of AH Plus Jet at all experimental times and soaking media (P < 0.05). Alkaline environment also significantly increased the water sorption of AH Plus Jet immersed in PBS (P < 0.05). Immersion in PBS significantly reduced the solubility of EndoSequence BC Sealer and significantly increased that of AH Plus Jet (P < 0.05). Precipitates on the surface of EndoSequence BC Sealer corresponding to hydroxyapatite and calcium carbonate were detected after immersion in PBS at pH 5 and 7 for 30 days. CONCLUSIONS EndoSequence BC Sealer had significantly greater solubility and water sorption than AH Plus Jet. Although the alkaline pH and soaking media directly influenced the solubility and water sorption of the sealers, the solubility of AH Plus Jet remained within the limits recommended by ISO 6876, whilst the solubility of the EndoSequence BC Sealer did not comply with ISO recommendations in all the conditions tested.
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Affiliation(s)
- E J N L Silva
- Department of Endodontics, School of Dentistry, Grande Rio University (UNIGRANRIO), Rio de Janeiro, Brazil.,Department of Endodontics, School of Dentistry, Rio de Janeiro State University (UERJ), Rio de Janeiro, Brazil
| | - C M Ferreira
- Department of Endodontics, School of Dentistry, Rio de Janeiro State University (UERJ), Rio de Janeiro, Brazil
| | - K P Pinto
- Department of Endodontics, School of Dentistry, Rio de Janeiro State University (UERJ), Rio de Janeiro, Brazil
| | - A F A Barbosa
- Department of Endodontics, School of Dentistry, Rio de Janeiro State University (UERJ), Rio de Janeiro, Brazil
| | - M V Colaço
- Laboratory of Applied Physics to Biomedical Science, Rio de Janeiro State University (UERJ), Rio de Janeiro, Brazil
| | - L M Sassone
- Department of Endodontics, School of Dentistry, Rio de Janeiro State University (UERJ), Rio de Janeiro, Brazil
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5
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Endodontic sealers based on calcium silicates: a systematic review. Odontology 2018; 107:421-436. [DOI: 10.1007/s10266-018-0400-3] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 11/19/2018] [Indexed: 01/21/2023]
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Alves AMH, Pozzobon MH, Bortoluzzi EA, da Silveira Teixeira C, Souza BDM, da Fonseca Roberti Garcia L, Felippe WT. Bacterial penetration into filled root canals exposed to different pressures and to the oral environment—in vivo analysis. Clin Oral Investig 2017; 22:1157-1165. [DOI: 10.1007/s00784-017-2199-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 08/30/2017] [Indexed: 11/29/2022]
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Medeiros PL, Bernardineli N, Cavenago BC, Torres SA, Duarte MAH, Bramante CM, Marciano MA. Sealing ability of MTA, CPM, and MBPc as root-end filling materials: a bacterial leakage study. J Appl Oral Sci 2016; 24:148-52. [PMID: 27119763 PMCID: PMC4836922 DOI: 10.1590/1678-775720130103] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Accepted: 06/12/2014] [Indexed: 01/28/2023] Open
Abstract
Objectives To evaluate the sealing ability of three root-end filling materials (white MTA, CPM, and MBPc) using an Enterococcus faecalis leakage model. Material and Methods Seventy single-root extracted human teeth were instrumented and root-ends were resected to prepare 3 mm depth cavities. Root-end preparations were filled with white MTA, CPM, and MBPc cements. Enterococcus faecalis was coronally introduced and the apical portion was immersed in BHI culture medium with phenol red indicator. The bacterial leakage was monitored every 24 h for 4 weeks. The statistical analysis was performed using the Wilcoxon-Gehan test (p<0.05). Results All cements showed bacterial leakage after 24 hours, except for the negative control group. The MBPc showed significantly less bacterial leakage compared with the MTA group (p<0.05). No significant differences were found between the CPM and the other groups. Conclusions The epoxy resin-based cement MBPc had lower bacterial leakage compared with the calcium silicate-based cements MTA and CPM.
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Affiliation(s)
- Paulo Leal Medeiros
- Departamento de Dentística, Materiais Odontológicos e Endodontia, Faculdade de Odontologia de Bauru, Universidade de São Paulo, Bauru, SP, Brasil
| | - Norberti Bernardineli
- Departamento de Dentística, Materiais Odontológicos e Endodontia, Faculdade de Odontologia de Bauru, Universidade de São Paulo, Bauru, SP, Brasil
| | - Bruno Cavalini Cavenago
- Departamento de Dentística, Materiais Odontológicos e Endodontia, Faculdade de Odontologia de Bauru, Universidade de São Paulo, Bauru, SP, Brasil
| | - Sérgio Aparecido Torres
- Departamento de Microbiologia e Imunologia, Faculdade de Odontologia de Bauru, Universidade de São Paulo, Bauru, SP, Brasil
| | - Marco Antonio Hungaro Duarte
- Departamento de Dentística, Materiais Odontológicos e Endodontia, Faculdade de Odontologia de Bauru, Universidade de São Paulo, Bauru, SP, Brasil
| | - Clovis Monteiro Bramante
- Departamento de Dentística, Materiais Odontológicos e Endodontia, Faculdade de Odontologia de Bauru, Universidade de São Paulo, Bauru, SP, Brasil
| | - Marina Angélica Marciano
- Departamento de Dentística, Materiais Odontológicos e Endodontia, Faculdade de Odontologia de Bauru, Universidade de São Paulo, Bauru, SP, Brasil
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Espir CG, Guerreiro-Tanomaru JM, Spin-Neto R, Chávez-Andrade GM, Berbert FLCV, Tanomaru-Filho M. Solubility and bacterial sealing ability of MTA and root-end filling materials. J Appl Oral Sci 2016; 24:121-5. [PMID: 27119759 PMCID: PMC4836918 DOI: 10.1590/1678-775720150437] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Accepted: 01/18/2016] [Indexed: 11/25/2022] Open
Abstract
Objective To evaluate solubility and sealing ability of Mineral Trioxide Aggregate (MTA) and root-end filling materials. Material and Methods The materials evaluated were: MTA, Calcium Silicate Cement with zirconium oxide (CSC/ZrO2), and zinc oxide/eugenol (ZOE). Solubility test was performed according to ANSI/ADA. The difference between initial and final mass of the materials was analyzed after immersion in distilled water for 7 and 30 days. Retrograde cavities in human teeth with single straight root canal were performed by using ultrasonic tip CVD 9.5107-8. The cavities were filled with the evaluated materials to evaluate sealing ability using the bacterial leakage test with Enterococcus faecalis. Bacterial leakage was evaluated every 24 hours for six weeks observing the turbidity of Brain Heart infusion (BHI) medium in contact with root apex. Data were submitted to ANOVA followed by Tukey tests (solubility), and Kruskal-Wallis and Dunn tests (sealing ability) at a 5% significance level. Results For the 7-day period, ZOE presented highest solubility when compared with the other groups (p<0.05). For the 30-day period, no difference was observed among the materials. Lower bacterial leakage was observed for MTA and CSC/ZrO2, and both presented better results than ZOE (p<0.05). Conclusion MTA and CSC/ZrO2 presented better bacterial sealing capacity, which may be related to lower initial solubility observed for these materials in relation to ZOE.
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Affiliation(s)
- Camila Galletti Espir
- Departamento de Odontologia Restauradora, Faculdade de Odontologia de Araraquara, Universidade Estadual Paulista, Araraquara, SP, Brasil
| | - Juliane Maria Guerreiro-Tanomaru
- Departamento de Odontologia Restauradora, Faculdade de Odontologia de Araraquara, Universidade Estadual Paulista, Araraquara, SP, Brasil
| | - Rubens Spin-Neto
- Department of Dentistry, Oral Radiology, Aarhus University, Aarhus, Denmark
| | - Gisselle Moraima Chávez-Andrade
- Departamento de Odontologia Restauradora, Faculdade de Odontologia de Araraquara, Universidade Estadual Paulista, Araraquara, SP, Brasil
| | - Fabio Luiz Camargo Villela Berbert
- Departamento de Odontologia Restauradora, Faculdade de Odontologia de Araraquara, Universidade Estadual Paulista, Araraquara, SP, Brasil
| | - Mario Tanomaru-Filho
- Departamento de Odontologia Restauradora, Faculdade de Odontologia de Araraquara, Universidade Estadual Paulista, Araraquara, SP, Brasil
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Jafari F, Sobhani E, Samadi-Kafil H, Pirzadeh A, Jafari S. In vitro evaluation of the sealing ability of three newly developed root canal sealers: A bacterial microleakage study. J Clin Exp Dent 2016; 8:e561-e565. [PMID: 27957271 PMCID: PMC5149092 DOI: 10.4317/jced.52992] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 07/06/2016] [Indexed: 12/02/2022] Open
Abstract
Background The purpose of this study was to compare the sealing ability of MTA Fillapex, Apatite Root Canal Sealer and AH26 sealers. Material and Methods The present in vitro study was carried out on 142 extracted single-rooted human mature teeth. The teeth were randomly divided into three experimental groups (n=44) and two control groups (n=5). Three root canal sealers were MTA Fillapex, Apatite Root Canal Sealer and AH26. The teeth in the control groups were either filled with no sealer or made completely impermeable. The root canals were prepared and obturated with gutta-percha and one of the sealers. The teeth were sterilized with ethylene oxide gas prior to the bacterial leakage assessment using Enterococcus faecalis. Leakage was evaluated every 24 hours for 90 days. Data were analyzed with descriptive statistical methods and chi-squared test. If the data were significant, a proper post hoc test was used. Statistical significance was set at P<0.05. Results The positive control specimens exhibited total bacterial penetration whilst the negative control specimens showed no evidence of bacterial penetration. At the end of the study, the analysis of microleakage with chi-squared test showed no significant differences between the experimental groups (P<0.05). The results of chi-squared test analyzing the pair-wise differences between the groups considering the numerical values for leakage day indicated the lowest leakage with AH26 and the highest with Apatite root sealer. Conclusions According to the results of the present study, sealing ability of AH26 was significantly higher than that of MTA Fillapex and Apatite Root Canal Sealer. Key words:Mineral Trioxide aggregate, root canal obturation, dental seal.
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Affiliation(s)
- Farnaz Jafari
- Assistant Professor, Endodontics Department, Dentistry Faculty, Tabriz University of Medical Sciences
| | - Ehsan Sobhani
- Dentist, Dentistry Faculty, Tabriz University of Medical Sciences
| | - Hossein Samadi-Kafil
- Assistant Professor, Drug Applied Reserach Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ahmad Pirzadeh
- Assistant Professor, Oral health and community Dentistry Department, Dentistry Faculty, Tabriz University of Medical Sciences
| | - Sanaz Jafari
- Assistant Professor, Orthodontics Department, Dentistry Faculty, Ilam University of Medical Sciences, Ilam, Iran
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Bioceramic-Based Root Canal Sealers: A Review. Int J Biomater 2016; 2016:9753210. [PMID: 27242904 PMCID: PMC4868912 DOI: 10.1155/2016/9753210] [Citation(s) in RCA: 129] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 04/06/2016] [Indexed: 11/17/2022] Open
Abstract
Bioceramic-based root canal sealers are considered to be an advantageous technology in endodontics. The aim of this review was to consider laboratory experiments and clinical studies of these sealers. An extensive search of the endodontic literature was made to identify publications related to bioceramic-based root canal sealers. The outcome of laboratory and clinical studies on the biological and physical properties of bioceramic-based sealers along with comparative studies with other sealers was assessed. Several studies were evaluated covering different properties of bioceramic-based sealers including physical properties, biocompatibility, sealing ability, adhesion, solubility, and antibacterial efficacy. Bioceramic-based sealers were found to be biocompatible and comparable to other commercial sealers. The clinical outcomes associated with the use of bioceramic-based root canal sealers are not established in the literature.
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Silva EJ, Perez R, Valentim RM, Belladonna FG, De-Deus GA, Lima IC, Neves AA. Dissolution, dislocation and dimensional changes of endodontic sealers after a solubility challenge: a micro-CT approach. Int Endod J 2016; 50:407-414. [PMID: 27000665 DOI: 10.1111/iej.12636] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 03/17/2016] [Indexed: 12/01/2022]
Abstract
AIM To evaluate, using a novel micro-CT approach, the solubility and dimensional changes of an MTA-based sealer inside the root canal system after a solubility challenge. The MTA-based material (MTA Fillapex) was compared to a gold standard epoxy-based endodontic sealer (AH Plus). METHODOLOGY Ten human mandibular premolars with a single canal were divided randomly into two groups (n = 5) according to the sealer used. The canals were instrumented using the Reciproc System (VDW) with a R40 file and filled with R40 gutta-percha cones and one of the sealers. The filled canals were immediately scanned in a micro-CT, and after that, the teeth were immersed in 20 mL phosphate-buffered saline (PBS) at 37 °C for 7 days, when they were removed and rescanned. Final image stacks were registered against the initial stacks and the numerical difference between the initial and final volume of the filling material was obtained. Calculations were performed to identify dimensional changes of the filling material. All image stacks were 3D rendered to disclose areas of dislocation of the filling material inside or outside the root canal. The Shapiro-Wilk's test revealed that data were normally distributed; thus, the Student's t-test was used to detect statistically significant changes, assuming a 5% α-error. RESULTS No significant changes were seen for the percentage volume of material lost after the solubility challenge for both AH Plus and MTA Fillapex groups (1.44% and 1.16%, respectively). A significant difference was, however, found for the volume of filling material which revealed dimensional changes after the solubility test (6.68% for MTA Fillapex and 1.09% for AH Plus). In fact, observation of 3D models disclosed that MTA Fillapex was associated with material extrusion through the foramen in all but one sample. In AH Plus filled samples, no material extrusion was detected. CONCLUSIONS Although the solubility of both sealers was similar using this novel micro-CT approach, MTA Fillapex was associated with significant dimensional changes related to material extrusion through the apex after PBS storage compared to AH Plus.
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Affiliation(s)
- E J Silva
- Escola de Ciências da Saúde, Universidade do Grande Rio, Rio de Janeiro, Brazil
| | - R Perez
- Corpo de Bombeiros Militar do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - R M Valentim
- Escola de Ciências da Saúde, Universidade do Grande Rio, Rio de Janeiro, Brazil
| | - F G Belladonna
- Faculdade de Odontologia, Universidade Federal Fluminense, Niteroi, Brazil
| | - G A De-Deus
- Escola de Ciências da Saúde, Universidade do Grande Rio, Rio de Janeiro, Brazil
| | - I C Lima
- Laboratório de Instrumentação Nuclear, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - A A Neves
- Departamento de Odontopediatria e Ortodontia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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da Frota MF, Guerreiro-Tanomaru JM, Tanomaru-Filho M, Bagnato VS, Espir CG, Berbert FLCV. Photodynamic therapy in root canals contaminated with Enterococcus faecalis using curcumin as photosensitizer. Lasers Med Sci 2014; 30:1867-72. [PMID: 25502831 DOI: 10.1007/s10103-014-1696-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Accepted: 11/30/2014] [Indexed: 12/27/2022]
Abstract
The aim of the study was to evaluate the photodynamic therapy (PDT) effect on root canals contaminated with Enterococcus faecalis using a light emitting diode (LED) light and a curcumin solution (CUR) as photosensitizer (PS). Eighty root canals from uniradicular human teeth were prepared with Protaper Universal rotary system and contaminated with E. faecalis for 21 days. They were divided as: GIa-PDT (CUR, pre-irradiation for 5 + 5 min of irradiation); GIb-PDT (CUR, pre-irradiation for 5 + 10 min of irradiation); GIIa-(CUR, pre-irradiation for 5 + 5 min without irradiation); GIIb-(CUR pre-irradiation for 5 + 10 min of irradiation); GIIIa-(physiological solution and irradiation for 5 min); and GIIIb-(physiological solution and irradiation for 10 min); positive and negative control groups. Collections from root canals were made at time intervals of 21 days after contamination, immediately after treatment, and 7 days after treatment, and submitted to colony forming units per milliter (CFU mL(-1)) counts. The data were submitted to ANOVA and Tukey multiple comparison tests, at a level of significance of 5 %. In the immediate post-treatment collection, group GIa showed greater bacterial reduction in comparison with GIIa, GIIb, GIIIa, GIIIb, and positive control (P < 0.05). At 7 days post-treatment, GIa showed significant bacterial reduction only in comparison with GIIIa (P < 0.05). Curcumin as sensitizer was effective by 5 min LED irradiation but not by 10 min irradiation PDT using LED light, and curcumin as PS was not effective in eliminating E. faecalis. No difference was observed for periods of irradiation.
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Navarro-Escobar E, Baca P, Ruiz-Linares M, Arias-Moliz MT, Perez-Heredia M, Ferrer-Luque CM. Bacterial leakage in root canals filled with AH Plus and dentine bonding agents. Acta Odontol Scand 2014; 72:819-24. [PMID: 24791609 DOI: 10.3109/00016357.2014.913196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE The aim of this study was to compare the efficacy of different dentine adhesives in delaying the coronal bacterial leakage of Enterococcus faecalis in filled root canals. Materials and methods. Ninety-five lower incisors of patients >65 years of age were instrumented using the ProTaper system and were irrigated with 1 mL of 2.5% sodium hypochlorite (NaOCl) alternated with 1 mL 17% EDTA between each file change. Final irrigation was performed with 5 mL of 17% EDTA and then flushed with 5 mL of distilled water. The teeth were randomly divided into five experimental groups (n = 15/group) and one of the following dentine adhesives was applied: (1) AdheSE; (2) Excite DSC; (3) Clearfil Protect Bond; (4) One Coat 7.0; or (5) Control group without adhesive. After filling the root canals, the samples were mounted on a double chamber device to evaluate the bacterial filtration of E. faecalis during a period of 240 days. The results underwent non-parametric Kaplan-Meier survival analysis and comparisons among groups were done using the Log-Rank test. RESULTS At 240 days, E. faecalis was detected in samples of all groups in the lower chamber. The highest survival value was obtained by One Coat 7.0, giving statistically significant differences from the other groups, whereas Clearfil Protect Bond, AdheSE and Excite DSC showed similar behaviours, likewise similar to the Control group. CONCLUSIONS One Coat 7.0 adhesive system provides the longest survival value to delay E. faecalis coronal leakage in filled root canals.
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Cañadas PS, Berástegui E, Gaton-Hernández P, Silva LAB, Leite GA, Silva RS. Physicochemical Properties and Interfacial Adaptation of Root Canal Sealers. Braz Dent J 2014; 25:435-41. [DOI: 10.1590/0103-6440201300037] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Accepted: 10/06/2014] [Indexed: 11/22/2022] Open
Abstract
This study compared the physicochemical properties and interfacial adaptation to canal walls of Endo-CPM-Sealer, Sealapex and Activ GP with the well-established AH Plus sealer. The following analyses were performed: radiopacity, pH variation and solubility using samples of each material and scanning electron microscopy of root-filled bovine incisors to evaluate the interfacial adaptation. Data were analyzed by the parametric and no-parametric tests (α=0.05). All materials were in accordance with the ANSI/ADA requirements for radiopacity. Endo-CPM-Sealer presented the lowest radiopacity values and AH Plus was the most radiopaque sealer (p=0.0001). Except for ActiV GP, which was acidic, all other sealers had basic chemical nature and released hydroxyl ions. Regarding solubility, all materials met the ANSI/ADA recommendations, with no statistically significant difference between the sealers (p=0.0834). AH Plus presented the best adaptation to canal walls in the middle (p=0.0023) and apical (p=0.0012) thirds, while the sealers Activ GP and Endo-CPM-Sealer had poor adaptation to the canal walls. All sealers, except for ActiV GP, were alkaline and all of them fulfilled the ANSI/ADA requirements for radiopacity and solubility. Regarding the interfacial adaptation, AH Plus was superior to the others considering the adaptation to the bovine root canal walls.
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15
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Influence of Ultrasonic Activation of 4 Root Canal Sealers on the Filling Quality. J Endod 2014; 40:964-8. [DOI: 10.1016/j.joen.2013.11.016] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 11/20/2013] [Accepted: 11/21/2013] [Indexed: 11/17/2022]
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Viapiana R, Guerreiro-Tanomaru J, Tanomaru-Filho M, Camilleri J. Interface of dentine to root canal sealers. J Dent 2014; 42:336-50. [DOI: 10.1016/j.jdent.2013.11.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2013] [Revised: 11/14/2013] [Accepted: 11/15/2013] [Indexed: 10/26/2022] Open
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Lotfi M, Ghasemi N, Rahimi S, Vosoughhosseini S, Saghiri MA, Shahidi A. Resilon: a comprehensive literature review. J Dent Res Dent Clin Dent Prospects 2013; 7:119-30. [PMID: 24082982 PMCID: PMC3779370 DOI: 10.5681/joddd.2013.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Accepted: 03/23/2013] [Indexed: 11/17/2022] Open
Abstract
Background and aims. An ideal root canal filling material should completely seal the entire root canal space and block communication between the root canal system and its surrounding tissues; it should also be nontoxic, noncarcinogenic, non-genotoxic, biocompatible, insoluble in tissue fluids and dimensionally stable. Bonding to dentin is a promising property, which can prevent leakage and improve the sealing ability of root canal filling materials. Resilon was developed and rec-ommended initially because the existing rootcanal filling materials did not bond to root canal dentin. Since its introduction in 2004, numerous reports have been published regarding various aspects of this material. The aim of this literature review is to present investigations regarding Resilon's physical and chemical properties and leakage studies. Materials and methods. A review of the literature was performed by using electronic and hand searching methods for Resilon from May 2004 to April 2012. Results. There are many published reports regarding Resilon. The searchshowed that Resilon is composed of a parent polymer, polycaprolactone or Tone, which is a biodegradable aliphatic polyester, with filler particles consisting of bioactive glass, bismuth oxychloride and barium sulfate. It possesses some antibacterial and antifungal properties. It is a promising material for root canal filling. Despite the presence of numerous case reports and case series regarding these applications, there are few designed research studies on clinical applications of this material. Resilon has some drawbacks such as high cost. Conclusion. Resilon seals well and is a biocompatible material. However, more clinical studies are needed to confirm its efficacy compared with other materials.
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Affiliation(s)
- Mehrdad Lotfi
- Professor, Department of Endodontic, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Negin Ghasemi
- Postgraduate Student, Department of Endodontic, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeed Rahimi
- Professor, Department of Endodontic, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
- Dental and Periodontal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sepideh Vosoughhosseini
- Associate Professor, Department of Oral and Maxillofacial Pathology, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Ali Saghiri
- Research Associated, Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public health, Madison, WI, USA
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Sarı T, Özyesil AG. Microleakage of teeth restored with different adhesive dowel systems: an in vitro study. J Prosthodont 2013; 23:45-9. [PMID: 23724962 DOI: 10.1111/jopr.12054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/24/2013] [Indexed: 11/28/2022] Open
Abstract
PURPOSE Commercial fiber-reinforced dowel systems are marketed as having better adhesion and sealing ability than conventional metallic dowel systems. The aim of this in vitro study was to evaluate the microleakage of teeth restored with nine dowel systems. MATERIALS AND METHODS Ninety mandibular second premolar teeth were decoronated, and nine homogenous groups were composed of ten teeth each. Root canal and dowel space preparations were made, and eight fiber-reinforced composite dowel systems and one stainless steel dowel system were used to fabricate dowel restorations. Microleakage measurements of the restored teeth were made with a modified fluid filtration method, and data were collected. One sample Kolmogorov-Smirnov, one-way ANOVA, and Tukey-HSD tests were performed on the relative microleakage data of the groups. RESULTS Microleakage values were reported relative to those for teeth with unfilled canals. The highest and lowest relative microleakage values were recorded for the metallic Parapost (7.06 × 10(-4) %) and fiber-reinforced Everstick (3.55 × 10(-4) %) groups, respectively. Significant differences in relative microleakage between the fiber-reinforced dowels and stainless steel dowels were observed. Significant differences among the fiber-reinforced dowel groups were observed as well. CONCLUSIONS The sealing ability of all fiber-reinforced composite dowels is not better than that of stainless steel dowels, and there are significant differences among different fiber-reinforced dowel systems as well. Differences among commercial dowel systems must be taken into consideration when making a selection.
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Affiliation(s)
- Tuğrul Sarı
- Department of Prosthodontics, Bezmialem Vakıf University Faculty of Dentistry, Istanbul, Turkey
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Faria-Júnior NB, Tanomaru-Filho M, Berbert FLCV, Guerreiro-Tanomaru JM. Antibiofilm activity, pH and solubility of endodontic sealers. Int Endod J 2013; 46:755-62. [DOI: 10.1111/iej.12055] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Accepted: 12/14/2012] [Indexed: 11/28/2022]
Affiliation(s)
- N. B. Faria-Júnior
- Department of Restorative Dentistry; Araraquara Dental School; São Paulo State University; Araraquara; Brazil
| | - M. Tanomaru-Filho
- Department of Restorative Dentistry; Araraquara Dental School; São Paulo State University; Araraquara; Brazil
| | - F. L. C. V. Berbert
- Department of Restorative Dentistry; Araraquara Dental School; São Paulo State University; Araraquara; Brazil
| | - J. M. Guerreiro-Tanomaru
- Department of Restorative Dentistry; Araraquara Dental School; São Paulo State University; Araraquara; Brazil
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Comparative Resistance of AH26 and a New Sealer Prototype to a Bacterial Challenge. Int J Dent 2012; 2012:365231. [PMID: 22505898 PMCID: PMC3296140 DOI: 10.1155/2012/365231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2011] [Accepted: 12/13/2011] [Indexed: 11/18/2022] Open
Abstract
Objective. This study compared the leakage resistance of a New Sealer Prototype (NSP) with a traditional sealer (AH 26) in Resilon-filled roots subjected to a bacterial challenge. Study Design. 41 roots were instrumented to ISO size 50 apically. Group 1 (n = 20) contained Resilon and AH 26 sealer and roots in group 2 (n = 21) contained Resilon and NSP. Roots were embedded in a dual-chamber model with the upper chamber containing Streptococcus mutans inoculum. Evidence of bacterial penetration was observed for 1 month. Fisher's Test was used to analyze the data. Results. 8 of 20 roots (40%) in the AH 26 group demonstrated leakage whereas 3 of 21 roots (14%) in the NSP group leaked. The difference in leakage rates was not statistically significant (P = 0.053). Conclusion. The traditional sealer (AH 26) demonstrated increased leakage rates compared to the New Sealer Prototype (NSP), but the difference did not reach statistical significance in this study.
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The effect of prior calcium hydroxide intracanal placement on the bond strength of two calcium silicate-based and an epoxy resin-based endodontic sealer. J Endod 2012; 38:696-9. [PMID: 22515906 DOI: 10.1016/j.joen.2012.02.007] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Revised: 02/09/2012] [Accepted: 02/09/2012] [Indexed: 11/23/2022]
Abstract
INTRODUCTION The aim of this study was to investigate the effect of prior calcium hydroxide (Ca[OH](2)) intracanal placement on the bond strength of AH Plus (Dentsply DeTrey GmbH, Konstanz, Germany), iRoot SP (Innovative Bioceramix, Vancouver, BC, Canada), and MTA Fillapex (Angelus Soluções Odontológicas, Londrina, PR, Brazil). METHODS The root canals of 90 human incisor teeth were prepared with the ProTaper System (Dentsply Maillefer, Ballaigues, Switzerland) up to a master apical file size of F5. Canals were filled using the single-cone technique either immediately (the control group, n = 30) or after a 7-day Ca(OH)(2) placement. Ca(OH)(2) removal was performed either manually using F5 with distilled water irrigation (the Ca[OH](2) group, n = 30) or manually using Protaper F5 followed by passive ultrasonic irrigation with 2.5 % NaOCl with a final flush of 17 % EDTA and then distilled water (the PUI group, n = 30). After obturation, a 2-mm-thick middle section of each root was then subjected to push-out testing. RESULTS Using 1-way analysis of variance, AH Plus showed a higher bond strength than iRoot SP and MTA Fillapex in the control group (P < .05). With prior Ca(OH)(2) placement, AH Plus and iRoot SP showed a similar bond strength (P > .05), which was higher than MTA Fillapex (P < .05). CONCLUSIONS Prior Ca(OH)(2) placement seemed to improve the dislodgment resistance of iRoot SP but did not affect AH Plus and MTA Fillapex.
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Kum KY, Zhu Q, Safavi K, Gu Y, Bae KS, Chang SW. Analysis of six heavy metals in Ortho mineral trioxide aggregate and ProRoot mineral trioxide aggregate by inductively coupled plasma-optical emission spectrometry. AUST ENDOD J 2012; 39:126-30. [PMID: 24279659 DOI: 10.1111/j.1747-4477.2012.00349.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ortho mineral trioxide aggregate (MTA) is a mineral aggregate newly developed for perforation repair, root end filling and pulp capping. The aim of this study was to investigate the levels of cadmium (Cd), copper (Cu), iron (Fe), manganese (Mn), nickel (Ni) and zinc (Zn) in Ortho MTA and ProRoot MTA. A total of 0.2 g of each MTA was digested using a mixture of hydrochloric and nitric acids and filtered. Six heavy metals in the resulting filtrates were analyzed by inductively coupled plasma-optical emission spectrometry (n = 5). The results were statistically analyzed using the Mann-Whitney U-test. The concentrations of Cd, Cu, Fe, Mn, Ni and Zn in Ortho MTA were 0.10, 7.73, 49.51, 2.58, 0.82 and 10.09 p.p.m., respectively. The concentrations of Cd, Cu, Fe, Mn, Ni and Zn in ProRoot MTA were 0.16, 9.38, 1438.11, 74.51, 18.98 and 4.05 p.p.m., respectively. In conclusion, Ortho MTA had lower levels of Cd, Cu, Fe, Mn and Ni than ProRoot MTA.
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Affiliation(s)
- Kee-Yeon Kum
- Department of Conservative Dentistry, Dental Research Institute, Seoul National University Dental Hospital, Seoul National University School of Dentistry, Seoul, Korea Department of Endodontology, School of Dental Medicine, University of Connecticut Health Center, Farmington, Connecticut, USA Department of Conservative Dentistry, Institute of Oral Health Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Ilić S, Đeri A, Knežević R. Effects of materials containing epoxy resins or calcium hydroxide on periapical tissue repair. SCRIPTA MEDICA 2012. [DOI: 10.5937/scriptamed1201028i] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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Borges RP, Sousa-Neto MD, Versiani MA, Rached-Júnior FA, De-Deus G, Miranda CES, Pécora JD. Changes in the surface of four calcium silicate-containing endodontic materials and an epoxy resin-based sealer after a solubility test. Int Endod J 2011; 45:419-28. [PMID: 22150403 DOI: 10.1111/j.1365-2591.2011.01992.x] [Citation(s) in RCA: 121] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIM To compare the changes in the surface structure and elemental distribution, as well as the percentage of ion release, of four calcium silicate-containing endodontic materials with a well-established epoxy resin-based sealer, submitted to a solubility test. METHODOLOGY Solubility of AH Plus, iRoot SP, MTA Fillapex, Sealapex and MTA-Angelus (MTA-A) was tested according to ANSI/ADA Specification 57. The deionized water used in the solubility test was submitted to atomic absorption spectrophotometry to determine and quantify Ca(2+), Na(+), K(+), Zn(2+), Ni(2+) and Pb(2+) ions release. In addition, the outer and inner surfaces of nonsubmitted and submitted samples of each material to the solubility test were analysed by means of scanning electron microscopy and energy-dispersive spectroscopy (SEM/EDX). Statistical analysis was performed by using one-way anova and Tukey's post hoc tests (α = 0.05). RESULTS Solubility results, in percentage, sorted in an increasing order were -1.24 ± 0.19 (MTA-A), 0.28 ± 0.08 (AH Plus), 5.65 ± 0.80 (Sealapex), 14.89 ± 0.73 (MTA Fillapex) and 20.64 ± 1.42 (iRoot SP). AH Plus and MTA-A were statistically similar (P > 0.05), but different from the other materials (P < 0.05). High levels of Ca(2+) ion release were observed in all groups except AH Plus sealer. MTA-A also had the highest release of Na(2+) and K(+) ions. Zn(+2) ion release was observed only with AH Plus and Sealapex sealers. After the solubility test, all surfaces had morphological changes. The loss of matrix was evident and the filler particles were more distinguishable. EDX analysis displayed high levels of calcium and carbon at the surface of Sealapex, MTA Fillapex and iRoot SP. CONCLUSIONS AH Plus and MTA-A were in accordance with ANSI/ADA's requirements regarding solubility whilst iRoot SP, MTA Fillapex and Sealapex did not fulfil ANSI/ADA's protocols. High levels of Ca(2+) ion release were observed in all materials except AH Plus. SEM/EDX analysis revealed that all samples had morphological changes in both outer and inner surfaces after the solubility test. High levels of calcium and carbon were also observed at the surface of all materials except AH Plus and MTA-A.
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Affiliation(s)
- R P Borges
- Department of Endodontics, University of Ribeirão Preto, Ribeirão Preto, São Paulo, Brazil
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Dentin bond strength of two mineral trioxide aggregate-based and one epoxy resin-based sealers. J Endod 2011; 38:219-21. [PMID: 22244640 DOI: 10.1016/j.joen.2011.10.018] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Revised: 10/16/2011] [Accepted: 10/19/2011] [Indexed: 11/23/2022]
Abstract
INTRODUCTION This study aimed at evaluating the bond strength to root dentin of 2 mineral trioxide aggregate (MTA)-based sealers (Endo-CPM sealer and MTA Fillapex) and of 1 epoxy resin-based sealer (AH Plus sealer). METHODS Forty-five extracted human teeth with single roots were prepared by using the step-back technique. Irrigation with 2.5% NaOCl and a final rinse with 17% ethylenediaminetetraacetic acid and distilled water were performed. Canals were filled by using Endo-CPM sealer, MTA Fillapex, or AH Plus sealer by means of the gutta-percha lateral condensation technique. After 7 days, the roots were sectioned perpendicularly to its long axis, and the push-out test was carried out. The data were analyzed by using the Kruskal-Wallis and Dunn post hoc tests. RESULTS Endo-CPM sealer showed the highest values of bond strength to root dentin (8.265 MPa) (P < .05). The values of push-out test were similar for MTA Fillapex (2.041 MPa) and AH Plus (3.034 MPa). CONCLUSIONS On the basis of the findings presented herein and within the limitations of this study, Endo-CPM sealer presented advantages when a post preparation was required. MTA Fillapex presented acceptable resistance to dislodgement, which was similar to that observed in samples filled with AH Plus sealer.
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Chang SW, Baek SH, Yang HC, Seo DG, Hong ST, Han SH, Lee Y, Gu Y, Kwon HB, Lee W, Bae KS, Kum KY. Heavy Metal Analysis of Ortho MTA and ProRoot MTA. J Endod 2011; 37:1673-6. [DOI: 10.1016/j.joen.2011.08.020] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Revised: 08/22/2011] [Accepted: 08/30/2011] [Indexed: 10/17/2022]
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