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Edanami N, Takenaka S, Ibn Belal RS, Yoshiba K, Takahara S, Yoshiba N, Ohkura N, Noiri Y. In Vivo Assessment of the Apatite-Forming Ability of New-Generation Hydraulic Calcium Silicate Cements Using a Rat Subcutaneous Implantation Model. J Funct Biomater 2023; 14:jfb14040213. [PMID: 37103303 PMCID: PMC10144219 DOI: 10.3390/jfb14040213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/07/2023] [Accepted: 04/09/2023] [Indexed: 04/28/2023] Open
Abstract
Hydroxyapatite formation on endodontic hydraulic calcium silicate cements (HCSCs) plays a significant role in sealing the root canal system and elevating the hard-tissue inductivity of the materials. This study evaluated the in vivo apatite-forming ability of 13 new-generation HCSCs using an original HCSC (white ProRoot MTA: PR) as a positive control. The HCSCs were loaded into polytetrafluoroethylene tubes and implanted in the subcutaneous tissue of 4-week-old male Wistar rats. At 28 days after implantation, hydroxyapatite formation on the HCSC implants was assessed with micro-Raman spectroscopy, surface ultrastructural and elemental characterization, and elemental mapping of the material-tissue interface. Seven new-generation HCSCs and PR had a Raman band for hydroxyapatite (v1 PO43- band at 960 cm-1) and hydroxyapatite-like calcium-phosphorus-rich spherical precipitates on the surfaces. The other six HCSCs with neither the hydroxyapatite Raman band nor hydroxyapatite-like spherical precipitates did not show calcium-phosphorus-rich hydroxyapatite-layer-like regions in the elemental mapping. These results indicated that 6 of the 13 new-generation HCSCs possessed little or no ability to produce hydroxyapatite in vivo, unlike PR. The weak in vivo apatite-forming ability of the six HCSCs may have a negative impact on their clinical performance.
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Affiliation(s)
- Naoki Edanami
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8514, Japan
| | - Shoji Takenaka
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8514, Japan
| | - Razi Saifullah Ibn Belal
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8514, Japan
| | - Kunihiko Yoshiba
- Division of Oral Science for Health Promotion, Department of Oral Health and Welfare, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8514, Japan
| | - Shintaro Takahara
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8514, Japan
| | - Nagako Yoshiba
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8514, Japan
| | - Naoto Ohkura
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8514, Japan
| | - Yuichiro Noiri
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8514, Japan
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Shahbaz S, Iftekhar H, Alam S, Mishra SK. Comparative evaluation of the apical leakage of different bioceramic retrofilling materials with and without smear layer: A stereomicroscopic study. Indian J Dent Res 2022; 33:46-51. [PMID: 35946244 DOI: 10.4103/ijdr.ijdr_313_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Objective Present in-vitro study aimed to evaluate the apical leakage of different bioceramic retrofilling materials with and without smear layer. Materials and Methods : Sixty human single-rooted teeth were decoronated at a standardized root length of 13 mm, chemo-mechanically prepared and obturated. After obturation, root-end resection was done and root-end cavities were prepared using ultrasonic tips. The specimens with prepared retro cavities were randomly assigned into 2 groups (n = 30) based on the smear layer removal protocol used. Each group was further subdivided into 3 subgroups (n = 10) based on the bioceramic retrofilling material MTA (Mineral Trioxide Aggregate; Proroot Dentsply/Tulsa), CEM (Calcium-Enriched Mixture; Bionique Dent, Tehran) and ERRM (EndoSequence® Root Repair Material; Brasseler USA, Savannah, GA). The extension of dye (2% Rhodamine B) penetration was measured in millimetre using a stereomicroscope at 10× zoom. Results were statistically analysed using one-way ANOVA (analysis of variance) test and unpaired Student's t test. Results In the presence of smear layer, MTA demonstrated maximum mean apical leakage value (1.70 ± 0.30), followed by CEM (1.40 ± 0.37) and ERRM (1.40 ± 0.23), which was statistically not significant. Without the smear layer, ERRM demonstrated the least mean apical leakage value, which was statistically significant as compared with CEM (P <.05) and MTA (P <.01). Conclusion(s) : All bioceramic retrofilling materials demonstrated apical leakage irrespective of the presence or absence of the smear layer. The presence of a smear layer is beneficial for the sealing ability of MTA and CEM, whereas, the absence of the smear layer is advocated while using ERRM.
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Affiliation(s)
- Sheikh Shahbaz
- Department of Conservative Dentistry and Endodontics, Dr ZADC, AMU, Aligarh, Uttar Pradesh, India
| | - Huma Iftekhar
- Department of Conservative Dentistry and Endodontics, Dr ZADC, AMU, Aligarh, Uttar Pradesh, India
| | - Sharique Alam
- Department of Conservative Dentistry and Endodontics, Dr ZADC, AMU, Aligarh, Uttar Pradesh, India
| | - Surendra Kumar Mishra
- Department of Conservative Dentistry and Endodontics, Dr ZADC, AMU, Aligarh, Uttar Pradesh, India
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Jardine AP, Rosa KFV, Matoso FB, Quintana RM, Grazziotin-Soares R, Kopper PMP. Marginal gaps and internal voids after root-end filling using three calcium silicate-based materials: A Micro-CT analysis. Braz Dent J 2021; 32:1-7. [PMID: 34787245 DOI: 10.1590/0103-6440202104096] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 05/24/2021] [Indexed: 11/22/2022] Open
Abstract
This study evaluated the 3D quality of root-end filling, assessing the presence (volume and percentage) of marginal gaps and internal voids formed after retro-filling with three calcium silicate-based materials: MTA Angelus (Angelus Soluçoes Odontologicas, Londrina, PR, Brazil), Biodentine (Septodont Ltd., Saint Maur-des-Faussés, France) and Neo MTA Plus (Avalon Biomed Inc., Bradenton, Florida, US). Thirty human, extracted, single rooted teeth were used. Orthograde root canal treatment, root resection (3mm shorter than the apex) and retrograde cavity preparation with ultrasonic tips were performed. Teeth were divided into 3 groups (n =10 each) following a stratified randomization according to the initial volume of the root-end cavity. After retrofilling, samples were stored for 7 days. Then, two rounds of micro-CT scans were performed: soon after root-end preparation (with the cavity still empty) and 7 days after root-end filling. Marginal gaps, internal voids volume (mm3 and %), as well as, the overall defects (sum of gaps and voids) were evaluated. Statistics compared the three groups in relation to those defects. There was not statistical difference between groups regarding the marginal gaps (P≥ 0.05), the internal voids (P≥ 0.05), and the overall defects (P≥ 0.05). Median (mm3) and % of overall air-entrapment defects (gaps and/or voids) was: 0.004mm3 and 1.749% for MTA Angelus, 0.018mm3 and 6.660% for Biodentine, and 0.012mm3 and 4.079% for Neo MTA Plus. All materials had gaps and/or voids. No differences were found between MTA Angelus, Biodentine and Neo MTA Plus.
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Affiliation(s)
- Alexander Pompermayer Jardine
- Graduate Program of School of Dentistry/Endodontics, Federal University of Rio Grande do Sul(UFRGS), Porto Alegre, RS, Brazil
| | - Ketsia Fernanda Váz Rosa
- Department of Conservative Dentistry/Endodontics, School of Dentistry, Federal University of Rio Grande do Sul(UFRGS), Porto Alegre, RS, Brazil
| | - Felipe Barros Matoso
- Graduate Program of School of Dentistry/Endodontics, Federal University of Rio Grande do Sul(UFRGS), Porto Alegre, RS, Brazil
| | - Ramiro Martins Quintana
- Graduate Program of School of Dentistry/Endodontics, Federal University of Rio Grande do Sul(UFRGS), Porto Alegre, RS, Brazil
| | | | - Patricia Maria Poli Kopper
- Graduate Program of School of Dentistry/Endodontics, Federal University of Rio Grande do Sul(UFRGS), Porto Alegre, RS, Brazil.,Department of Conservative Dentistry/Endodontics, School of Dentistry, Federal University of Rio Grande do Sul(UFRGS), Porto Alegre, RS, Brazil
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Afkhami F, Nasri S, Valizadeh S. Bacterial leakage assessment in root canals sealed with AH Plus sealer modified with silver nanoparticles. BMC Oral Health 2021; 21:577. [PMID: 34772398 PMCID: PMC8588647 DOI: 10.1186/s12903-021-01924-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 10/21/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Successful endodontic therapy requires prevention of bacterial leakage between the root canal filing and root-canal walls. Sealing quality of a root canal filling depends strongly on the sealing ability of the sealer used. The present study aimed to evaluate the bacterial leakage resistance of AH Plus sealer modified with silver nanoparticles. METHODS Forty sound teeth were obturated using lateral compaction technique except for five teeth as the negative controls. After considering five teeth as the positive controls (filled without sealer), the remaining teeth were assigned to two groups (n = 15) in terms of the sealer used (AH Plus sealer and silver nanoparticle-modified AH Plus). Bacterial leakage was evaluated in saliva using the two-chamber technique in every 24 h. When all the samples in the test groups were contaminated, the study was terminated. The data were analyzed with log-rank statistical test. RESULTS All samples in both experimental groups were contaminated during the 3-months period of observation. There was no significant difference in contamination time between study groups (P > 0.05). CONCLUSIONS Silver nanoparticles used in tested concentration did not improve the bacterial leakage resistance of AH Plus sealer.
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Affiliation(s)
- Farzaneh Afkhami
- Department of Endodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Sara Valizadeh
- Restorative Dentistry Department, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
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Virtual Approach to the Comparative Analysis of Biomaterials Used in Endodontic Treatment. Processes (Basel) 2021. [DOI: 10.3390/pr9060926] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The importance of endodontics is presented within our own concept of Dentistry Sustainable Development (DSD) consisting of three inseparable elements; i.e., Advanced Interventionist Dentistry 4.0 (AID 4.0), Global Dental Prevention (GDP), and the Dentistry Safety System (DSS) as a polemic, with the hypothesis of the need to abandon interventionist dentistry in favour of the domination of dental prevention. In view of the numerous systemic complications of caries that affect 3−5 billion people globally, endodontic treatment effectively counteracts them. Regardless of this, the prevention of oral diseases should be developed very widely, and in many countries dental care should reach the poorest sections of society. The materials and methods of clinical management in endodontic procedures are characterized. The progress in the field of filling materials and techniques for the development and obturation of root canals is presented. The endodontics market is forecast to reach USD 2.1 billion in 2026, with a CAGR of 4.1%. The most widely used and recognized material for filling root canals is gutta-percha, recognized as the “gold standard”. An alternative is a synthetic thermoplastic filler material based on polyester materials, known mainly under the trade name Resilon. There are still sceptical opinions about the need to replace gutta-percha with this synthetic material, and many dentists still believe that this material cannot compete with gutta-percha. The results of studies carried out so far do not allow for the formulation of a substantively and ethically unambiguous view that gutta-percha should be replaced with another material. There is still insufficient clinical evidence to formulate firm opinions in this regard. In essence, materials and technologies used in endodontics do not differ from other groups of materials, which justifies using material engineering methodology for their research. Therefore, a detailed methodological approach is presented to objectify the assessment of endodontic treatment. Theoretical analysis was carried out using the methods of procedural benchmarking and comparative analysis with the use of contextual matrices to virtually optimize the selection of materials, techniques for the development and obturation of root canals, and methods for assessing the effectiveness of filling, which methods are usually used, e.g., in management science, and especially in foresight research as part of knowledge management. The results of these analyses are presented in the form of appropriate context matrices. The full usefulness of the research on the effectiveness and tightness of root canal filling using scanning electron microscopy is indicated. The analysis results are a practical application of the so-called “digital twins” approach concerning the virtual comparative analysis of biomaterials used in endodontic treatment.
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Nasri S, Afkhami F. Efficacy of MTA Modified by Nanosilver for the Prevention of Coronal Leakage. Open Dent J 2021. [DOI: 10.2174/1874210602115010204] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Background:
Numerous materials have been introduced as coronal barriers, however, they have shown various degrees of microleakage. Therefore, attempts are undertaken to introduce more reliable materials with the potential to provide a long-term coronal seal.
Introduction:
This in vitro study aimed to assess the efficacy of gray ProRoot Mineral Trioxide Aggregate (MTA) modified by a suspension of silver nanoparticles (AgNPs) as an orifice plug using a bacterial leakage method.
Methods:
40 extracted human teeth were prepared and filled (except for the negative control group) using the lateral compaction technique. The coronal 2 mm of the root filling was removed in the experimental groups. The teeth were randomly divided into two experimental (n = 15) and two control (n = 5) groups. In the experimental group 1 (MTA group) and the experimental group 2 (Ag-MTA group), MTA modified by a suspension of AgNPs was used as an orifice plug. In the negative control group, the entire root surfaces were covered with two layers of nail varnish. In the positive control group, the root canals were filled with a single gutta-percha cone without a sealer and no orifice plug. Bacterial leakage was assessed using a two-chamber system. The teeth were incubated at 37°C and 100% humidity for 120 days, and human saliva was added to the samples every 3 days. Bacterial microleakage was assessed by daily monitoring and observating the turbidity of the Brain Heart Infusion (BHI) broth. The data were analyzed using the log-rank test.
Results:
All positive controls showed contamination after 5 days. None of the negative controls were contaminated during the experiment. The Ag-MTA group demonstrated a significantly better coronal seal than the MTA group (p = 0.031).
Conclusion:
Gray ProRoot MTA modified by AgNPs has the potential for being used as an orifice plug in endodontically treated teeth.
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Alcalde MP, Vivan RR, Marciano MA, Duque JA, Fernandes SL, Rosseto MB, Duarte MAH. Effect of ultrasonic agitation on push-out bond strength and adaptation of root-end filling materials. Restor Dent Endod 2018; 43:e23. [PMID: 29765903 PMCID: PMC5952061 DOI: 10.5395/rde.2018.43.e23] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Accepted: 03/08/2018] [Indexed: 11/11/2022] Open
Abstract
Objectives This study evaluated the effect of ultrasonic agitation of mineral trioxide aggregate (MTA), calcium silicate-based cement (CSC), and Sealer 26 (S26) on adaptation at the cement/dentin interface and push-out bond strength. Materials and Methods Sixty maxillary canines were divided into 6 groups (n = 10): MTA, S26, and CSC, with or without ultrasonic activation (US). After obturation, the apical portions of the teeth were sectioned, and retrograde cavities were prepared and filled with cement by hand condensation. In the US groups, the cement was activated for 60 seconds: 30 seconds in the mesio-distal direction and 30 seconds in the buccal-lingual direction, using a mini Irrisonic insert coupled with the ultrasound transducer. After the materials set, 1.5-mm thick sections were obtained from the apexes. The presence of gaps and the bond between cement and dentin were analyzed using low-vacuum scanning electron microscopy. Push-out bond strength was measured using a universal testing machine. Results Ultrasonic agitation increased the interfacial adaptation of the cements. The S26 US group showed a higher adaptation value than MTA (p < 0.05). US improved the push-out bond strength for all the cements (p < 0.05). Conclusions The US of retrograde filling cements enhanced the bond to the dentin wall of the root-end filling materials tested.
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Affiliation(s)
- Murilo Priori Alcalde
- Department of Restorative Dentistry, Dental Materials and Endodontics, Bauru Dental School, University of São Paulo, Bauru, SP, Brazil
| | - Rodrigo Ricci Vivan
- Department of Restorative Dentistry, Dental Materials and Endodontics, Bauru Dental School, University of São Paulo, Bauru, SP, Brazil
| | - Marina Angélica Marciano
- Department of Restorative Dentistry, School of Dentistry of Piracicaba, State University of Campinas, Piracicaba, SP, Brazil
| | - Jussaro Alves Duque
- Department of Restorative Dentistry, Dental Materials and Endodontics, Bauru Dental School, University of São Paulo, Bauru, SP, Brazil
| | - Samuel Lucas Fernandes
- Department of Restorative Dentistry, Dental Materials and Endodontics, Bauru Dental School, University of São Paulo, Bauru, SP, Brazil
| | - Mariana Bailo Rosseto
- Department of Restorative Dentistry, Dental Materials and Endodontics, Bauru Dental School, University of São Paulo, Bauru, SP, Brazil
| | - Marco Antonio Hungaro Duarte
- Department of Restorative Dentistry, Dental Materials and Endodontics, Bauru Dental School, University of São Paulo, Bauru, SP, Brazil
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Kim SY, Kim HC, Shin SJ, Kim E. Comparison of Gap Volume after Retrofilling Using 4 Different Filling Materials: Evaluation by Micro–computed Tomography. J Endod 2018; 44:635-638. [DOI: 10.1016/j.joen.2017.11.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 10/31/2017] [Accepted: 11/15/2017] [Indexed: 11/16/2022]
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The Repair of Furcal Perforations in Different Diameters with Biodentine, MTA, and IRM Repair Materials: A Laboratory Study Using an E. Faecalis Leakage Model. BIOMED RESEARCH INTERNATIONAL 2018; 2018:5478796. [PMID: 29568756 PMCID: PMC5820666 DOI: 10.1155/2018/5478796] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Revised: 12/07/2017] [Accepted: 12/16/2017] [Indexed: 11/17/2022]
Abstract
The aim of this study is to evaluate the microleakage of repair materials MTA, IRM, and Biodentine applied on furcal perforations with different diameters. One hundred and forty extracted human teeth were used in this study. The teeth were divided into 2 main groups (60 teeth in each) which were then divided into 3 subgroups (n = 20). The remaining 20 teeth were divided into 2 groups (10 in each) to serve as controls. The furcal areas of the teeth were perforated with #2 cylindrical burs in Group 1 whereas perforations were made using #4 cylindrical burs in Group 2. Each subgroup of both Groups 1 and 2 received ProRoot MTA (ProRoot, USA), Biodentine (Septodont), or IRM (Dentsply, USA) to repair the perforations. An experimental set-up was established to contaminate repaired perforations with E. Faecalis (ATCC29212). The turbidity of bacteria was observed on the 7th, 15th, 30th, and 45th days. The data was analysed by chi-square test (p > 0.05). The number of bacteria in the group perforated by bur #2 and closed by MTA was found to be lower than the other groups on the 7th day (p < 0.05). There was no statistical difference in the bacterial counts of other groups on the 15th, 30th, and 45th days (p > 0.05). ProRoot MTA was found to be more successful in the prevention of bacterial leakage compared to IRM and Biodentine in smaller perforations during the 1st week.
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Profeta AC, Prucher GM. Bioactive-glass in Endodontic Therapy and Associated Microsurgery. Open Dent J 2017; 11:164-170. [PMID: 28567140 PMCID: PMC5418922 DOI: 10.2174/1874210601711010164] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2016] [Revised: 02/03/2017] [Accepted: 02/28/2017] [Indexed: 11/22/2022] Open
Abstract
Introduction: Bioactive-glass (B-G) has become a valuable adjunct to promote hard-tissue healing in many clinical situations and is of particular interest for endodontic care because of its biocompatibility, regenerative and antimicrobial properties as well as chemical composition that closely resembles the mineral make-up of human bone and dentine. Therapy: Initial studies suggested that bacteria-tight sealing within the entire root canal system can be achieved and successfully maintained after orthograde treatment. Promising results have also been obtained in conjunction with microsurgical techniques, with the aim of enhancing wound healing and positively influencing bone regeneration. Conclusion: Here, relevant literature was explored to present a comprehensive review of the rationale, development, and current applications of B-G in Endodontology illustrating them with case reports.
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Jafari F, Jafari S. Importance and methodologies of endodontic microleakage studies: A systematic review. J Clin Exp Dent 2017. [PMID: 28638561 PMCID: PMC5474340 DOI: 10.4317/jced.53604] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
INTRODUCTION It is very important to obtain a tight seal in obturated root canal, making it necessary to conduct clinical or laboratory studies on the sealability of endodontic materials. Different methodologies have been historically used to assess microleakage of different endodontic materials. The aim of the present study was to comprehensively review different material testing methods used in microleakage studies, their interpretation and importance in endodontic literature. MATERIAL AND METHODS A systematic search was conducted in Medline, Cochrane, and Web of Science databases. In addition, the reference lists of review articles on the topic were searched. No language restriction was applied. Two independent reviewers screened the article. RESULTS Microleakage is considered the single most important risk factor responsible for apical periodontitis. Dye penetration, dye diffusion, bacterial and endototoxin infiltration, fluid filtration, glucose, caffeine and protein infiltration, radioisotope penetration, animal studies, and electrochemical or 3D evaluation are different methodologies used to assess dental leakage. 91 out of 177 articles in the primary search were included in the study. These methods are very divergent in their viewpoints; that is why their results cannot be easily compared. It is necessary to standardize microleakage detection methods in order to more correctly evaluate the phenomena that are found between the root canal wall and the root canal filling materials. CONCLUSIONS All the methods are useful if studies are performed strictly with large sample sizes and proper control groups and if the technique can be standardized. Furthermore, more evaluations of the reliability of the methods are strongly recommended. Key words:Dental leakage, review, root canal, material testing methods, data interpretation.
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Affiliation(s)
- Farnaz Jafari
- Assistant Professor, Department of Endodontics, Dental School, Tabriz Branch, Islamic Azad University
| | - Sanaz Jafari
- Assistant Professor, Orthodontics Department, Dentistry Faculty, Ilam University of Medical Science
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12
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Kim S, Song M, Shin SJ, Kim E. A Randomized Controlled Study of Mineral Trioxide Aggregate and Super Ethoxybenzoic Acid as Root-end Filling Materials in Endodontic Microsurgery: Long-term Outcomes. J Endod 2016; 42:997-1002. [DOI: 10.1016/j.joen.2016.04.008] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Revised: 01/28/2016] [Accepted: 04/13/2016] [Indexed: 11/16/2022]
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Benz K, Markovic L, Jordan RA, Novacek C, Jackowski J. In vitro evaluation of the apical seal of two different retrograde filling materials. AUST ENDOD J 2016; 43:29-33. [PMID: 27238158 DOI: 10.1111/aej.12161] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/11/2016] [Indexed: 11/29/2022]
Abstract
To determine whether the selection of retrograde filling material or the choice of instruments in root tip resection influences the seal of the retrograde root filling. Seventy-two single-rooted teeth were used. Root resection was performed using a Lindemann bone cutter, a Lindemann bone cutter with A-shaped cutting design or a diamond-coated bur. Retro-cavities were prepared by piezo-tips and filled with Super-EBA or MTA. Teeth were made transparent and dye penetration was assessed. Teeth filled with MTA, irrespective of the resection instrument, showed no measurable dye penetration. All groups filled with Super-EBA showed an apical leakage. There were no significant differences between the three groups filled with Super-EBA (P = 0.09). The comparison of MTA versus Super-EBA showed significant superiority in apical seal in favour of MTA (P < 0.0001). To use MTA as a retrograde filling material showed superior results in terms of the tightness of the apical seal as compared to Super-EBA.
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Affiliation(s)
- Korbinian Benz
- Department of Health, Department of Oral Surgery and Policlinical Ambulance, Faculty of Dental Medicine, University of Witten/Herdecke, Witten, Germany
| | - Ljubisa Markovic
- Department of Health, Department of Operative and Preventive Dentistry, Faculty of Dental Medicine, University of Witten/Herdecke, Witten, Germany
| | - R A Jordan
- Department I: Epidemiology and Delivery of Health Care Services, Institute of German Dentists, Cologne, Germany
| | | | - Jochen Jackowski
- Faculty of Dental Medicine, Department of Oral Surgery and Policlinical Ambulance, University of Witten/Herdecke, Witten, Germany
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Mohammadi Z, Jafarzadeh H, Shalavi S, Bhandi S, Kinoshita JI. Resilon: Review of a New Material for Obturation of the Canal. J Contemp Dent Pract 2015; 16:407-14. [PMID: 26162262 DOI: 10.5005/jp-journals-10024-1698] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Resilon is a thermoplastic synthetic polymer-based endodontic material alternative to gutta-percha. It contains bioactive glass and also radiopaque fillers. It has the same handling properties as gutta-percha. For endodontic retreatment, it may be dissolved with some solvents, such as chloroform or softened with heat. The composition of Resilon and its sealer (Epiphany) bond to dentin and form a monoblock. A review of the literature and a discussion of its properties comparing to other root canal filling materials are presented.
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Affiliation(s)
- Zahed Mohammadi
- Department of Endodontics, Iranian Center for Endodontic Research (ICER), Research Institute of Dental Sciences Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamid Jafarzadeh
- Associate Professor, Faculty of Dentistry and Dental Research Center Vakilabad Blvd, Mashhad, Iran, PO Box: 91735-984, Phone: +98-51-38829501, Fax: +98-51-38829500, e-mail:
| | | | - Shilpa Bhandi
- Department of Conservative Dentistry and Endodontics Faculty of Dental Sciences, MS Ramajah University of Applied Sciences, Bengaluru, Karnataka, India
| | - Jun-Ichiro Kinoshita
- Department of Conservative Dentistry, Showa University Dental Hospital, Tokyo, Japan
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Prestegaard H, Portenier I, Ørstavik D, Kayaoglu G, Haapasalo M, Endal U. Antibacterial activity of various root canal sealers and root-end filling materials in dentin blocks infected ex vivo with Enterococcus faecalis. Acta Odontol Scand 2014; 72:970-6. [PMID: 25005627 DOI: 10.3109/00016357.2014.931462] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
OBJECTIVE The aim was to investigate the antibacterial activity of the root-end filling materials MTA and IRM, different endodontic sealers and calcium hydroxide [Ca(OH)₂] in experimentally infected dentinal tubules. MATERIALS AND METHODS Ninety-four human root segments were prepared and the root canals were enlarged to ISO size 90. After smear removal, the specimens were infected with Enterococcus faecalis for 3 weeks. The roots were divided into eight groups and filled either with MTA, IRM, Ca(OH)₂, gutta-percha and EndoRez (ER)/GuttaFlow (GF)/AH Plus (AH+) or with Resilon and Epiphany (EpRe). One group of specimens was left unfilled for control. Half of the specimens were treated for 1 day and the other half for 7 days in humid conditions at 37°C. Dentin samples from each canal were collected by enlarging the canals to ISO size 150; thus a dentinal depth of 300 µm was sampled. The number of cultivable bacteria was determined for each specimen. Statistical significance was set to 5%. RESULTS After 1-day or 7-days of treatment, compared to control, all materials (except ER and GF at day 7) significantly reduced the number of bacteria. At day 1 and day 7, no significant difference was found between ER and GF and between Ca(OH)₂, AH+, EpRe, IRM and MTA. However, a significant difference was found between these two groups of materials (except between GF and EpRe at day 7). Significantly more bacteria were cultured in the ER, GF, EpRe and IRM groups at day 7 compared to day 1. CONCLUSIONS All materials exerted varying degrees of antibacterial activity which generally tended to decrease with time. The most stable antibacterial effect throughout the 7-day period was for Ca(OH)₂, AH+ and MTA.
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Affiliation(s)
- Harald Prestegaard
- Department of Endodontics, Faculty of Dentistry, University of Oslo , Oslo , Norway
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AMOROSO-SILVA PA, MARCIANO MA, GUIMARÃES BM, DUARTE MAH, SANSON AF, MORAES IGD. Apical adaptation, sealing ability and push-out bond strength of five root-end filling materials. Braz Oral Res 2014; 28:S1806-83242014000100252. [DOI: 10.1590/1807-3107bor-2014.vol28.0043] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Accepted: 06/01/2014] [Indexed: 11/22/2022] Open
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17
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Gurgel-Filho ED, Lima FC, Saboia VDPA, Coutinho-Filho TDS, Neves ADA, da Silva EJNL. Push-out bond strength of a self-adhesive resin cement used as endodontic sealer. Restor Dent Endod 2014; 39:282-7. [PMID: 25383347 PMCID: PMC4223098 DOI: 10.5395/rde.2014.39.4.282] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Accepted: 06/15/2014] [Indexed: 11/11/2022] Open
Abstract
OBJECTIVES The aim of the present study was to investigate the bond strength of RelyX Unicem (3M) to root canal dentin when used as an endodontic sealer. MATERIALS AND METHODS Samples of 24 single-rooted teeth were prepared with Gates Glidden drills and K3 files. After that, the roots were randomly assigned to three experimental groups (n = 8) according to the filling material, (1) AH Plus (Dentsply De Trey GmbH)/Gutta-Percha cone; (2) Epiphany SE (Pentron)/Resilon cone; (3) RelyX Unicem/Gutta-Percha cone. All roots were filled using a single cone technique associated to vertical condensation. After the filling procedures, each tooth was prepared for a push-out bond strenght test by cutting 1 mm-thick root slices. Loading was performed on a universal testing machine at a speed of 0.5 mm/min. One-way analysis of variance and Tukey test for multiple comparisons were used to compare the results among the experimental groups. RESULTS Epiphany SE/Resilon showed significantly lower push-out bond strength than both AH Plus/Gutta-Percha and RelyX Unicem/Gutta-Percha (p < 0.05). There was no significant difference in bond strength between AH Plus/Gutta-Percha and RelyX Unicem/Gutta-Percha (p > 0.05). CONCLUSIONS Under the present in vitro conditions, bond strength to root dentin promoted by RelyX Unicem was similar to AH Plus. Epiphany SE/Resilon resulted in lower bond strength values when compared to both materials.
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Affiliation(s)
| | - Felipe Coelho Lima
- Department of Endodontics, School of Dentistry, Federal University of Ceará, Fortaleza, Brazil
| | | | | | - Aline de Almeida Neves
- Department of Endodontics, Health Sciences Center, Grande Rio University, Rio de Janeiro, Brazil
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18
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Onay EO, Gogos C, Ungor M, Economides N, Lyssaris V, Ogus E, Lambrianidis T. Effect of Er,Cr:YSGG laser irradiation on apical sealing ability of calcium silicatecontaining endodontic materials in root-end cavities. Dent Mater J 2014; 33:570-5. [PMID: 25087664 DOI: 10.4012/dmj.2014-075] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The aim of this research was to evaluate the apical sealing abilities of 60 root-end cavities filled with mineral trioxide aggregate (MTA) and iRoot BP cements after treated with either 17% EDTA solution or Er,Cr:YSGG laser irradiation. After the filling procedure, apical leakage quantity was measured at 4 weeks using a fluid filtration method. One root from each group was processed for scanning electron microscopy and energy dispersive X-ray spectroscopy analyses. Both EDTA/MTA and laser irradiation/MTA combinations showed significantly lower microleakage than EDTA/iRoot BP and laser irradiation/iRoot BP combinations (p<0.05). Between groups of the same filling material, there were no significant differences among specimens treated with EDTA or laser (p>0.05). Both MTA and iRoot-BP demonstrated tag-like structures within the dentinal tubules when used in conjunction with EDTA.
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Affiliation(s)
- Emel Olga Onay
- Department of Endodontics, Baskent University, School of Dentistry
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19
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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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Al-Fouzan K, Al-Garawi Z, Al-Hezaimi K, Javed F, Al-Shalan T, Rotstein I. Effect of acid etching on marginal adaptation of mineral trioxide aggregate to apical dentin: microcomputed tomography and scanning electron microscopy analysis. Int J Oral Sci 2013; 4:202-7. [PMID: 23306857 PMCID: PMC3633066 DOI: 10.1038/ijos.2012.77] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
The present investigation assessed the effect of acid etching on marginal adaptation of white- and gray-colored mineral trioxide aggregate (MTA) to apical dentin using microcomputed tomography (micro-CT) and scanning electron microscopy (SEM). Sixty-four extracted single-rooted human maxillary teeth were used. Following root-end resection and apical preparation, the teeth were equally divided into four groups according to the following root end filling materials: (i) white-colored MTA (WMTA), (ii) etched WMTA (EWMTA), (iii) gray-colored MTA (GMTA) and (iv) etched GMTA (EGMTA). After 48 h, the interface between root-end filling materials and the dentinal walls was assessed using micro-CT and SEM. Data were statistically analyzed using the Kruskal-Wallis and Dunn tests. Micro-CT analysis revealed gap volumes between the apical cavity dentin walls and EGMTA, GMTA, EWMTA and WMTA of (0.007 1±0.004) mm(3), (0.053±0.002) mm(3), (0.003 6±0.001) mm(3) and (0.005 9±0.002) mm(3) respectively. SEM analysis revealed gap sizes for EGMTA, WMTA, EWMTA and GMTA to be (492.3±13.8) µm, (594.5±17.12) µm, (543.1±15.33) µm and (910.7±26.2) µm respectively. A significant difference in gap size between root end preparations filled with GMTA and EGMTA was found (P<0.05). No significance difference in gap size between WMTA and EWMTA were found in either SEM or micro-CT analysis. In conclusion, pre-etching of apical dentin can provide a better seal for GMTA but not for WMTA.
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Affiliation(s)
- Khalid Al-Fouzan
- Engineer Abdullah Bugshan Research Chair for Growth Factors and Bone Regeneration, 3D Imaging and Biomechanical Laboratory, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
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21
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Lotfi M, Vosoughhosseini S, Saghiri MA, Rahimi S, Zand V, Reyhani MF, Samiei M, Ghasemi N, Mehrvarzfar P, Azimi S, Shokohinejad N. Effect of Synthetic Tissue Fluid on Microleakage of Grey and White Mineral Trioxide Aggregate as Root-End Filling Materials: An in vitro study. Sultan Qaboos Univ Med J 2012; 12:323-9. [PMID: 22912925 DOI: 10.12816/0003146] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2011] [Revised: 01/08/2012] [Accepted: 05/02/2012] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVES The success of endodontic surgery has been shown to depend partly on the apical seal. Grey mineral trioxide aggregate (GMTA) produces hydroxyapatite twice as often as white mineral trioxide aggregate (WMTA) when suspended in a phosphate buffered saline (PBS) solution. The aim of this in vitro study was to compare the microleakage phenomenon of gray and white mineral trioxide aggregates as root-end filling materials after immersion in synthetic tissue fluid (STF). METHODS 55 single-rooted extracted maxillary anterior human teeth were divided into two experimental groups of 20 teeth each, plus 3 groups of 5 teeth each as two negative and one positive control groups. The root canals were cleaned, shaped, and laterally compacted with gutta-percha. The root ends were resected and 3 mm deep cavities were prepared. The root-end preparations were filled with GMTA or WMTA in the experimental groups. Leakage was determined using a dye penetration method. Data were analysed using analysis of variance (ANOVA) at the 0.05 level of significance. RESULTS The mean dye leakage was 0.40 ± 0.1 mm for GMTA and 0.50±0.1 mm for WMTA groups, respectively. There was no significant difference between the two experimental groups (P = 0.14). CONCLUSION Despite the different properties and behaviours of GMTA and WMTA in STF, there were no significant differences in microleakage when using GMTA or WMTA.
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Affiliation(s)
- Mehrdad Lotfi
- Research Center of Pharmaceutical Nano Technology, Tabriz University (Medical Sciences), Tabriz, Iran
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22
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A Prospective Randomized Controlled Study of Mineral Trioxide Aggregate and Super Ethoxy–Benzoic Acid as Root-end Filling Materials in Endodontic Microsurgery. J Endod 2012; 38:875-9. [DOI: 10.1016/j.joen.2012.04.008] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Revised: 03/28/2012] [Accepted: 04/10/2012] [Indexed: 11/17/2022]
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23
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Scarano A, Artese L, Piattelli A, Carinci F, Mancino C, Iezzi G. Hemostasis Control in Endodontic Surgery: A Comparative Study of Calcium Sulfate versus Gauzes and versus Ferric Sulfate. J Endod 2012; 38:20-3. [DOI: 10.1016/j.joen.2011.09.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2011] [Revised: 09/21/2011] [Accepted: 09/22/2011] [Indexed: 11/25/2022]
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24
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Chittoni SB, Martini T, Wagner MH, Da Rosa RA, Cavenago BC, Duarte MAH, Klein CA, Só MVR. Back-scattered electron imaging for leakage analysis of four retrofilling materials. Microsc Res Tech 2011; 75:796-800. [DOI: 10.1002/jemt.21128] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2011] [Accepted: 11/01/2011] [Indexed: 11/06/2022]
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25
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Tanomaru-Filho M, Saçaki JN, Faleiros FBC, Guerreiro-Tanomaru JM. pH and calcium ion release evaluation of pure and calcium hydroxide-containing Epiphany for use in retrograde filling. J Appl Oral Sci 2011; 19:1-5. [PMID: 21437461 PMCID: PMC4245855 DOI: 10.1590/s1678-77572011000100002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2009] [Accepted: 05/21/2010] [Indexed: 11/22/2022] Open
Abstract
Objective Hydroxyl (OH-) and calcium (Ca++) ion release was evaluated
in six materials: G1) Sealer 26, G2) White mineral trioxide aggregate (MTA), G3)
epiphany, G4) epiphany + 10% calcium hydroxide (CH), G5) epiphany + 20% CH, and
G6) zinc oxide and eugenol. Material and Methods Specimens were placed in polyethylene tubes and immersed in distilled water. After
3, 6, 12, 24, and 48 h, 7, 14, and 28 days, the water was assessed for pH with a
pH meter and for Ca++ release by atomic absorption
spectrophotometry. Results G1, G2, G4, and G5 had the highest pH until 14 days (p<0.05). G1 presented
the highest Ca++ release until 6 h, and G4 and G5, from 12 h through 14
days. Ca++ release was greater for G1 and G2 at 28 days. G6 released
the least Ca++. Conclusion MTA, Sealer 26, epiphany, and epiphany + CH release OH - and
Ca++ ions. Epiphany + CH may be an alternative as retrofilling
material.
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Affiliation(s)
- Mário Tanomaru-Filho
- Department of Restorative Dentistry, Araraquara Dental School, São Paulo State University, Araraquara, SP, Brazil.
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26
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Song M, Shin SJ, Kim E. Outcomes of Endodontic Micro-resurgery: A Prospective Clinical Study. J Endod 2011; 37:316-20. [PMID: 21329814 DOI: 10.1016/j.joen.2010.11.029] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2010] [Revised: 11/22/2010] [Accepted: 11/23/2010] [Indexed: 10/18/2022]
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27
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Munhoz MF, Marchesan MA, Cardoso DRF, Silva SRC, Silva-Sousa YTC, Sousa-Neto MD. Quantitative 3D profilometry and SEM analysis of the adaptation of root-end filling materials placed under an optical microscope. Int Endod J 2011; 44:560-6. [DOI: 10.1111/j.1365-2591.2011.01862.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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OTANI K, SUGAYA T, TOMITA M, HASEGAWA Y, MIYAJI H, TENKUMO T, TANAKA S, MOTOKI Y, TAKANAWA Y, KAWANAMI M. Healing of experimental apical periodontitis after apicoectomy using different sealing materials on the resected root end. Dent Mater J 2011; 30:485-92. [DOI: 10.4012/dmj.2010-158] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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29
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Nekoofar MH, Aseeley Z, Dummer PMH. The effect of various mixing techniques on the surface microhardness of mineral trioxide aggregate. Int Endod J 2010; 43:312-20. [PMID: 20487451 DOI: 10.1111/j.1365-2591.2010.01683.x] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIM To evaluate the influence of various mixing procedures including ultrasonic vibration, trituration of customized encapsulated mineral trioxide aggregate (MTA) and condensation on the Vickers surface microhardness of MTA. METHODOLOGY ProRoot MTA Original, ProRoot MTA (white), MTA-Angelus (grey) and MTA White Angelus (white) were prepared using several mixing techniques including ultrasonic vibration, trituration of customized encapsulated MTA and conventional condensation. Twelve experimental groups (four materials: three techniques) were evaluated, each with 35 samples. All samples were incubated after preparation and subjected to Vickers surface microhardness testing after 4 and 28 days. Data was were subjected to a two-way anova. RESULT At 28 days, the surface microhardness value was significantly greater for all experimental groups compared to 4 days after mixing (P < 0.00001). The application of ultrasonic energy to MTA produced significantly higher surface microhardness values compared to the other mixing techniques at both 4 and 28 days (P < 0.0001). However, no significant difference existed between condensation and trituration techniques at both time intervals. Regardless of the mixing technique employed, a significant difference (P < 0.0001) was observed in surface microhardness value between all types of MTA apart from between Angelus grey and ProRoot white at both 4 and 28 days, both of which produced the highest values. CONCLUSION Compared to trituration and condensation techniques, the application of ultrasonic energy to MTA produced a significantly higher surface microhardness value at both 4 and 28 days. Irrespective of mixing technique, ProRoot white and Angelus grey had the highest surface microhardness values. Trituration of encapsulated, premeasured MTA and water provides a standardiszed method of mixing that produces MTA slurries with more controllable handling characteristics.
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Affiliation(s)
- M H Nekoofar
- Department of Endodontics, Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
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30
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Seyrek M, Vural IM, Tunca YM, Aydin C, Ulku C, Demirkaya K, Inal A, Yildiz O. The vasodilatory effect of a synthetic polymer-based root canal material on thoracic aorta. Int Endod J 2010; 43:590-9. [DOI: 10.1111/j.1365-2591.2010.01732.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Comparative analysis of leakage in root canal fillings performed with gutta-percha and Resilon cones with AH Plus and Epiphany sealers. ACTA ACUST UNITED AC 2010; 109:e131-5. [PMID: 20123394 DOI: 10.1016/j.tripleo.2009.09.038] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2009] [Revised: 09/21/2009] [Accepted: 09/24/2009] [Indexed: 11/23/2022]
Abstract
OBJECTIVE The aim of this study was to compare the leakage of root canal fillings of gutta-percha or Resilon cones in association with AH Plus or Epiphany sealer. STUDY DESIGN Four groups of premolars (n = 64) were instrumented to size 45/.04 ProFile and filled with laterally compacted gutta-percha cones or Resilon cones in association with AH Plus or Epiphany sealer. The specimens were stored for 2 weeks at 37 degrees C and 100% humidity. After that, leakage was measured using the fluid filtration method and determined as microL/min.10 psi. RESULTS Homogeneity of variance and multiple comparisons tests were performed and indicated that root fillings with the combination of gutta-percha cones and AH Plus sealer showed lower leakage values (P < .05) than the other groups. CONCLUSION Considering the experimental conditions and the results obtained, it was concluded that fillings made with gutta-percha cones in combination with AH Plus sealer had the best performance.
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Abstract
With the appearance of more in vivo and ex vivo publications, methacrylate based resin sealers are becoming more popular in endodontics. Their ease of use and favorable clinical performance offer an attractive alternative to conventional endodontics. This article reviews the development of resin-based sealers and biocompatibility tests. The many, mostly opposing views are analyzed to put what has been published thus far in perspective. A critical analysis of the facts leads to the consensus that methacrylate based resin sealers are here to stay and offer a suitable alternative to conventional endodontic treatment.
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Affiliation(s)
- Cornelis H Pameijer
- Department of Reconstructive Sciences, University of Connecticut, Health Center, Farmington, CT 06030, USA.
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33
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Yildirim T, Er K, Taşdemir T, Tahan E, Buruk K, Serper A. Effect of smear layer and root-end cavity thickness on apical sealing ability of MTA as a root-end filling material: A bacterial leakage study. ACTA ACUST UNITED AC 2010; 109:e67-72. [DOI: 10.1016/j.tripleo.2009.08.030] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2009] [Revised: 08/07/2009] [Accepted: 08/16/2009] [Indexed: 11/26/2022]
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De Bruyne MAA, De Moor RJG. Long-term sealing ability of Resilon apical root-end fillings. Int Endod J 2009; 42:884-92. [DOI: 10.1111/j.1365-2591.2009.01583.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Todea C, Balabuc C, Sinescu C, Filip L, Kerezsi C, Calniceanu M, Negrutiu M, Bradu A, Hughes M, Podoleanu AG. En face optical coherence tomography investigation of apical microleakage after laser-assisted endodontic treatment. Lasers Med Sci 2009; 25:629-39. [DOI: 10.1007/s10103-009-0680-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2008] [Accepted: 04/28/2009] [Indexed: 11/28/2022]
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Pantchev A, Nohlert E, Tegelberg A. Endodontic surgery with and without inserts of bioactive glass PerioGlas--a clinical and radiographic follow-up. Oral Maxillofac Surg 2009; 13:21-26. [PMID: 19023604 DOI: 10.1007/s10006-008-0141-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
OBJECTIVE This study evaluated the use of bioactive glass, PerioGlas, after retrograde filling with Super EBA cement in the treatment of periapical bone destruction. STUDY DESIGN Healing outcomes were followed up after endodontic surgery in 186 teeth. Outcomes were divided into two groups according to follow-up time: short- and long-term. The EBA group (n = 110) underwent endodontic surgery and retrograde filling with EBA cement. In the EBA + PerioGlas group (n = 76), PerioGlas was embedded in the bone cavity after retrograde filling. RESULTS The success rate in the EBA + PerioGlas group was 72% compared with 56% in the Super EBA group at the short-term follow-up and 74% and 84%, respectively, at the long-term follow-up. Healing of periapical bone destruction classified as uncertain at the short-term follow-up was considered successful in two out of three cases at the long-term follow-up. CONCLUSION This study found that PerioGlas as bone substitute did not significantly improve endodontic healing outcome.
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Affiliation(s)
- Alexander Pantchev
- Department of Oral Rehabilitation/Endodontics, Central Hospital, SE-721 89, Västerås, Sweden.
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37
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Parirokh M, Askarifard S, Mansouri S, Haghdoost AA, Raoof M, Torabinejad M. Effect of phosphate buffer saline on coronal leakage of mineral trioxide aggregate. J Oral Sci 2009; 51:187-91. [DOI: 10.2334/josnusd.51.187] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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38
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Enkel B, Dupas C, Armengol V, Akpe Adou J, Bosco J, Daculsi G, Jean A, Laboux O, LeGeros RZ, Weiss P. Bioactive materials in endodontics. Expert Rev Med Devices 2008; 5:475-94. [PMID: 18573047 DOI: 10.1586/17434440.5.4.475] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Endodontic treatment in dentistry is a delicate procedure and many treatment attempts fail. Despite constant development of new root canal filling techniques, the clinician is confronted with both a complex root canal system and the use of filling materials that are harmful for periapical tissues. This paper evaluates reported studies on biomaterials used in endodontics, including calcium hydroxide, mineral trioxide aggregate, calcium phosphate ceramics and calcium phosphate cements. Special emphasis is made on promising new biomaterials, such as injectable bone substitute and injectable calcium phosphate cements. These materials, which combine biocompatibility, bioactivity and rheological properties, could be good alternatives in endodontics as root canal fillers. They could also be used as drug-delivery vehicles (e.g., for antibiotics and growth factors) or as scaffolds in pulp tissue engineering.
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Affiliation(s)
- Bénédicte Enkel
- Nantes University Hospital, Pôle Odontologie, ERT 10-51 Equipe de Recherche Clinique en Odontologie et Chirurgie Osseuse, Faculté de Chirurgie Dentaire 1 Place Alexis Ricordeau, Nantes Cedex 01, France.
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39
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Asgary S, Shahabi S, Jafarzadeh T, Amini S, Kheirieh S. The Properties of a New Endodontic Material. J Endod 2008; 34:990-3. [DOI: 10.1016/j.joen.2008.05.006] [Citation(s) in RCA: 171] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2008] [Revised: 05/06/2008] [Accepted: 05/07/2008] [Indexed: 11/16/2022]
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40
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Er K, Taşdemir T, Bayramoğlu G, Siso ŞH. Comparison of the sealing of different dentin bonding adhesives in root-end cavities: a bacterial leakage study. ACTA ACUST UNITED AC 2008; 106:152-8. [PMID: 18585630 DOI: 10.1016/j.tripleo.2008.02.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2007] [Revised: 02/18/2008] [Accepted: 02/19/2008] [Indexed: 10/21/2022]
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41
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de Campos-Pinto MMD, de Oliveira DA, Versiani MA, Silva-Sousa YTC, de Sousa-Neto MD, da Cruz Perez DE. Assessment of the biocompatibility of Epiphany root canal sealer in rat subcutaneous tissues. ACTA ACUST UNITED AC 2008; 105:e77-81. [DOI: 10.1016/j.tripleo.2008.01.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2007] [Revised: 01/03/2008] [Accepted: 01/19/2008] [Indexed: 11/15/2022]
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42
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Cunha RS, De Martin AS, Barros PP, da Silva FM, de Castilho Jacinto R, da Silveira Bueno CE. In Vitro Evaluation of the Cleansing Working Time and Analysis of the Amount of Gutta-Percha or Resilon Remnants in the Root Canal Walls after Instrumentation for Endodontic Retreatment. J Endod 2007; 33:1426-8. [DOI: 10.1016/j.joen.2007.07.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2007] [Revised: 06/18/2007] [Accepted: 07/01/2007] [Indexed: 10/22/2022]
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43
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Clinical Outcome of Teeth Treated Endodontically with a Nonstandardized Protocol and Root Filled with Resilon. J Endod 2007; 33:1290-2. [DOI: 10.1016/j.joen.2007.07.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2007] [Revised: 06/26/2007] [Accepted: 07/01/2007] [Indexed: 11/21/2022]
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44
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Veríssimo DM, do Vale MS. Methodologies for assessment of apical and coronal leakage of endodontic filling materials: a critical review. J Oral Sci 2006; 48:93-8. [PMID: 17023739 DOI: 10.2334/josnusd.48.93] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Apical leakage continues to be a topic of great interest, because in spite of the advances in Endodontics, clinical failures still occur. Most failures are probably attributed to the proliferation of bacteria that remain viable after chemical-mechanical preparation and cause periapical tissue irritation. Coronal leakage has aroused researchers' interest over the last few years, since canals may be re-contaminated after loss of coronal sealing or fracture of the remaining tooth. In this review, the various methodologies used for assessing root canal sealing capacity are critically analyzed, as they are not standardized, which makes it difficult to compare the results obtained when different methodologies are used, even though the same substrate is being assessed.
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