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Aka A, Matsuura T, Yoshimura A. An Evaluation of the Cytocompatibility of Endodontic Bioceramics in Human Periodontal-Ligament-Derived Cells. J Funct Biomater 2024; 15:231. [PMID: 39194670 DOI: 10.3390/jfb15080231] [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: 07/12/2024] [Revised: 08/17/2024] [Accepted: 08/17/2024] [Indexed: 08/29/2024] Open
Abstract
The present study evaluated the cytocompatibility of three endodontic bioceramics in human periodontal-ligament-derived cells (hPDLCs): MTA Repair HP (HP), MTA Flow White (F), and Nishika Canal Sealer BG multi (BG). In addition, we also evaluated the effect of the powder-liquid (paste) ratio of F and BG on cytocompatibility. Discs of endodontic bioceramics (diameter = 8 mm, thickness = 1 mm) were prepared with HP, F, and BG. hPDLCs obtained from extracted teeth and cultured for three to five passages were used in the experiment. The prepared discs were placed at the bottom of a 48-well plate, seeded with hPDLCs at 100,000 cells/well, cultured for 7 or 28 days, and subjected to a 3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide assay. hPDLCs cultured without any discs were used as a negative control (NC) group. Discs made of F or BG mixed in three different consistencies were also used in this experiment. The absorbance values at days 7 and 28 were high in the order of HP > NC > BG > F. Furthermore, F or BG with higher consistency showed higher absorbance values. MTA Repair HP had the highest cytocompatibility among the three materials. Furthermore, it also showed that higher consistency improved cytocompatibility.
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Affiliation(s)
- Asuka Aka
- Department of Periodontology and Endodontology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki City 852-8588, Nagasaki, Japan
| | - Takashi Matsuura
- Department of Periodontology and Endodontology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki City 852-8588, Nagasaki, Japan
| | - Atsutoshi Yoshimura
- Department of Periodontology and Endodontology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki City 852-8588, Nagasaki, Japan
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Ateş A, Kurt A, Mercantepe T. Effects of mineral trioxide aggregate and methyl sulfonyl methane on pulp exposure via RUNX2 and RANKL pathways. Odontology 2024; 112:895-905. [PMID: 38194042 DOI: 10.1007/s10266-023-00885-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 12/04/2023] [Indexed: 01/10/2024]
Abstract
The aim of this study was to determine the therapeutic effects of mineral trioxide aggregate (MTA) and methyl sulfonyl methane (MSM) on pulp damage due to pulp exposure through the RUNX2 and RANKL pathways. Seventy-two male Sprague-Dawley rats aged 4-6 months and weighing 250-300 g were divided into healthy, control, MTA, and MSM groups. After experimental applications, all rats at 2, 4, and 8 weeks were killed anesthetically with xylazine hydrochloride (Rompun, Bayer) 30 mg/kg and ketamine hydrochloride (Ketalar, Pfizer) 50 mg/kg injections (i.p.). We observed that necrotic odontoblasts, edema, inflammation, and vascular congestion findings were reduced from week 2 to week 8 in the MSM treatment group after pulp capping compared to the control group and MTA group. Similarly, we found a decrease in RUNX2 and RANKL levels in the MSM application group compared to the control and MTA groups (p < 0.05). MSM material has shown therapeutic effects on pulp capping treatment-induced pulp injury via increased RUNX2 ve RANKL expression.
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Affiliation(s)
- Altar Ateş
- Department of Pediatric Dentistry, Faculty of Dentistry, Recep Tayyip Erdogan University, 53100, Rize, Turkey
| | - Ayca Kurt
- Department of Pediatric Dentistry, Faculty of Dentistry, Recep Tayyip Erdogan University, 53100, Rize, Turkey.
| | - Tolga Mercantepe
- Department of Histology and Embryology, Faculty of Medicine, Recep Tayyip Erdogan University, 53100, Rize, Turkey
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Mishra D, Arya A, Vamseekrishna KVN, Jahangeer B, Sachdeva M, Moses A. Evaluation and Comparative Analysis of Coronal Tooth Discoloration Induced by Four Endodontic Biomaterials Utilized in Regenerative Endodontic Procedures: An Ex-vivo Study. Cureus 2024; 16:e62874. [PMID: 39040777 PMCID: PMC11262750 DOI: 10.7759/cureus.62874] [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] [Received: 05/14/2024] [Accepted: 06/14/2024] [Indexed: 07/24/2024] Open
Abstract
AIM This study aims to compare and evaluate the changes in color caused by four different biomaterials utilized as intracanal coronal barriers in the regenerative endodontic procedure at varying intervals of time. METHODS A total of 100 extracted mandibular single-rooted premolars were taken. Samples were standardized, and access cavity preparation was done. All the canals were instrumented and irrigated thoroughly. They were divided into five groups: A, B, C, D, and E (n=20), i.e., the control group, gray mineral trioxide aggregate (MTA), white MTA, Biodentine, and calcium hydroxide. Each group was further subdivided into two subgroups (n=10), where one subgroup was prepared with normal saline and the other was prepared with platelet-rich fibrin (PRF). Digital photographs were taken at baseline, immediately after the placement of biomaterials, after 72 hours, seven days, and six months, using a DSLR camera. The color evaluation was done using the Adobe Photoshop 2021 software using the CIE L*a*b color system. The data obtained were recorded and statistically analyzed using IBM SPSS Statistics for Windows, Version 23 (Released 2015; IBM Corp., Armonk, New York). Continuous variables were analyzed using a one-way ANOVA test and post-hoc analysis. The P-value was set to be significant at <0.05. RESULTS Statistically significant variation was obtained in all four experimental groups regarding change in color (ΔE) over periods of 72 hours, seven days, and six months. At six months, all the experimental groups presented with a perceptible color variation (ΔE>3.3). CONCLUSION The color change was significant after six months in all groups. Biodentine produced the least color alteration, whereas gray MTA produced the highest.
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Affiliation(s)
- Divya Mishra
- Dentistry, Heritage Hospitals, Varanasi, IND
- Conservative Dentistry and Endodontics, Maharishi Markandeshwar College of Dental Sciences and Research, Mullana, IND
| | - Aishwarya Arya
- Conservative Dentistry and Endodontics, Awadh Dental College and Hospital, Jamshedpur, IND
| | | | - Bisma Jahangeer
- Conservative Dentistry and Endodontics, Private Practice, Kulgam, IND
| | - Mayank Sachdeva
- Conservative Dentistry and Endodontics, Ex-Servicemen Contributory Health Scheme (ECHS) Polyclinic, Kolkata, IND
| | - Aprajita Moses
- Conservative Dentistry and Endodontics, Awadh Dental College and Hospital, Jamshedpur, IND
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S A, Azhar S, Manan R, Bansal N, Singh D, Chauhan B. Comparison of the Microleakages of Four Root-End Filling Materials: An In Vitro Study. Cureus 2023; 15:e40461. [PMID: 37456461 PMCID: PMC10349657 DOI: 10.7759/cureus.40461] [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] [Received: 04/14/2023] [Accepted: 06/14/2023] [Indexed: 07/18/2023] Open
Abstract
INTRODUCTION When a nonsurgical endodontic treatment is ineffective, surgery is necessary. This entails putting a retrofilling to seal the tooth's apex. Exposing the lesion, performing a curettage, exposing the root apex, resecting it, preparing the root end, and lastly filling the cavity with the proper material are all steps in endodontic surgery. Thus, the aim of this study is to compare the apical microleakage of four root-end filling materials in cavities prepared using ultrasonic retro tip in in vitro conditions. MATERIALS AND METHODS An in vitro study was conducted on 60 extracted single-rooted teeth and was cut at the cementoenamel junction (CEJ). They were biomechanically prepared and obturated. Apical 3 mm root-end resection was done using a diamond disc. Root-end cavities were made using an ultrasonic retro tip. Teeth were separated into four groups and filled with SuperEBA®️ ethoxy-benzoic acid (EBA; Keystone Industries, New Jersey), mineral trioxide aggregate (MTA), Biodentine (Septodont, France), and TotalFill Bioceramic Root Repair Material (BC RRM; FKG Dentaire Sàrl, Switzerland). The samples were kept in methylene blue dye and split longitudinally. The degree of dye penetration was observed under a stereomicroscope and scored. Finally, the results were analyzed. RESULTS TotalFill BC RRM and Biodentine showed the least apical microleakage (p <0.05). Group 1 samples had the highest mean microleakage, followed by Group 2, Group 3, and Group 4 samples. CONCLUSION All of the sample groups showed some evidence of microleakage, but not all of the samples showed leaking. SuperEBA (Group 1) demonstrated the highest microleakage when compared to the other groups.
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Affiliation(s)
- Angitha S
- Conservative Dentistry and Endodontics, Institute of Dental Studies & Technologies, Ghaziabad, IND
| | - Saleem Azhar
- Conservative Dentistry and Endodontics, Institute of Dental Studies & Technologies, Ghaziabad, IND
| | - Rishi Manan
- Conservative Dentistry and Endodontics, Institute of Dental Studies & Technologies, Ghaziabad, IND
| | - Neetu Bansal
- Conservative Dentistry and Endodontics, Institute of Dental Studies & Technologies, Ghaziabad, IND
| | - Digvijay Singh
- Conservative Dentistry and Endodontics, Institute of Dental Studies & Technologies, Ghaziabad, IND
| | - Bharat Chauhan
- Conservative Dentistry and Endodontics, Institute of Dental Studies & Technologies, Ghaziabad, IND
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Mody A, Arora R, Chauhan P, Gautam K, Taneja P, Marya CM. A Scanning Electron Microscopic Study on Effect of Blood and Artificial Salivary Contamination on Marginal Adaptation of Mineral Trioxide Aggregate, When Used as a Retrograde Filling Material: An In Vitro Study. Int J Clin Pediatr Dent 2021; 14:674-680. [PMID: 34934282 PMCID: PMC8645609 DOI: 10.5005/jp-journals-10005-2012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Aim and objective The present study was conducted to evaluate the marginal adaptability of mineral trioxide aggregate (MTA) as a root-end filling material when manipulated using two different IV fluids intended for pediatric usage; in the presence of blood and salivary contamination. Materials and methods Sixty single-rooted teeth were selected. Conventional endodontic root canal preparation was performed on all specimens followed by root-end resection and retrograde cavity preparation. The roots were randomly divided into two groups (n = 30). In the specimens of group I, fresh blood was used as a contaminant and in group II artificial saliva was used as a contaminant. In both groups, MTA (e-MTA, Kids-e-Dental®) manipulated using either Ringer's lactate IV fluid (n = 15) or Tetraspan IV fluid (n = 15) was used for root-end filling in blood or artificial saliva-coated retrocavities. Furthermore, these roots were placed in beakers pooled with fresh phlebotomized blood or artificial saliva. After incubating for 48 hours, the roots were divided longitudinally to expose the retrofilled cavities and were then sputter-coated with gold-platinum dust. To assess the marginal adaptation of MTA to radicular dentin "maximum gap width" and "gap perimeter" were measured in images obtained from scanning electron microscopy of root specimens. SPSS 21 was employed for statistical analysis at (p < 0.05). Mann-Whitney U test and ANOVA were used for analyzing the data obtained. Results The gap width was more among samples exposed to blood (p < 0.05) than artificial saliva. No significant difference was reported in the gap perimeter when cavities were filled with MTA mixed with either IV fluids (p > 0.05). Conclusion Exposure to blood during setting had a negative effect on gap width when retrocavities were filled with MTA using Tetraspan. No effect was seen on the arch perimeter in retrocavities filled with MTA mixed with Ringer's lactate or Tetraspan. Clinical significance For avoiding failure, it is critical to select a biocompatible root-end filling material with high sealing ability. Hence, by doing the same, the clinical situation can be simulated. How to cite this article Mody A, Arora R, Chauhan P, et al. A Scanning Electron Microscopic Study on Effect of Blood and Artificial Salivary Contamination on Marginal Adaptation of Mineral Trioxide Aggregate, When Used as a Retrograde Filling Material: An In Vitro Study. Int J Clin Pediatr Dent 2021;14(5):674-680.
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Affiliation(s)
- Anuja Mody
- Department of Pediatric and Preventive Dentistry, Private Practice, Prabhadevi, Worli, Mumbai, Maharashtra, India
| | - Ruchi Arora
- Department of Pediatric and Preventive Dentistry, Darshan Dayal Dental College and Hospital, Loyara, Udaipur, Rajasthan, India
| | - Prabhav Chauhan
- Department of Pediatric and Preventive Dentistry, Private Practice, Greater Noida, Uttar Pradesh, India
| | - Kompal Gautam
- Department of Periodontology and Implantology, Siyaram Hospital, Jaipur, Rajasthan, India
| | - Pratibha Taneja
- Department of Public Health Dentistry, Private Practice, Gurugram, Haryana, India
| | - C M Marya
- Department of Public Health Dentistry, Sudha Rustagi College of Dental Science and Research, Faridabad, Haryana, India
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Sealing ability of Biodentine versus ProRoot mineral trioxide aggregate as root-end filling materials. Saudi Dent J 2018; 31:16-22. [PMID: 30723363 PMCID: PMC6349993 DOI: 10.1016/j.sdentj.2018.08.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 08/29/2018] [Accepted: 08/30/2018] [Indexed: 02/08/2023] Open
Abstract
Aim This study evaluated the sealing ability of ProRoot MTA and Biodentine as root-end filling materials. Method In total, twenty (N = 20) extracted human maxillary central incisor teeth were decontaminated, cleaned and decoronated. Instrumentation was performed according to the step back technique using #50 Flex-o-file. Then the canals were flared to #70 Flex-o-file. Obturation was performed with conventional gutta percha and a resinous sealer (AH26) using the lateral condensation technique. Resection of 3 mm of apical end of each root was achieved perpendicular to the long axis of the root. Root-end cavity was prepared in each sample ultrasonically then filled with tested materials (N = 10). Fluid filtration method was used to assess the sealing ability of each tested material at three different experimental periods; one day, one week and one month after setting. All data were tabulated and statistically analyzed with a level of significance set at P ≤ .05. Results At each specific time interval, the leakage mean values were not consistent among the tested materials. At one day interval, ProRoot MTA samples had a higher leakage mean value than Biodentine samples. However, this difference in leakage was not statistically significant (P > .05). At one week interval, both materials showed an increased degree of leakage mean value with no significant difference (P > .05). At one month interval, ProRoot MTA samples showed a decrease in leakage mean value, while the Biodentine samples showed a further increase in leakage mean value. This difference was statistically significant (P < .05). Conclusion Although the sealing ability of ProRoot MTA is superior to Biodentine, Biodentine could be considered as an acceptable alternative to ProRoot MTA in peri-radicular surgeries.
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Surgical endodontics: are the guidelines being followed? A pilot survey. Br Dent J 2018; 224:157-162. [PMID: 29371691 DOI: 10.1038/sj.bdj.2018.75] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2017] [Indexed: 11/09/2022]
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Wu M, Palamara J, Parashos P. Behavior of mineral trioxide aggregate apical plugs and root fillings under cyclic loading. JOURNAL OF INVESTIGATIVE AND CLINICAL DENTISTRY 2017; 8:e12226. [PMID: 27345332 DOI: 10.1111/jicd.12226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 04/23/2016] [Indexed: 06/06/2023]
Abstract
AIM The aim of the present study was to develop a methodology for constant monitoring of the resistance to fluid flow during functional loading and to then compare the efficacy of 4-mm mineral trioxide aggregate (MTA) apical plugs and full-length MTA root fillings. METHODS The root canals of 24 single-rooted teeth were instrumented and assigned into two groups: group 1 (filled with a 4-mm MTA apical plug and gutta percha) and group 2 (filled with MTA to cementoenamel junction level). All teeth were subjected to stepwise cyclic loading with a constant simulated interstitial pressure of 25 cm H2 O applied apically. A Flodec machine (De Marco Engineering, Geneva, Switzerland) constantly monitored the rate and direction of fluid flow. Student's t-test, Kruskal-Wallis test, Fisher's exact test, and Newcombe-Wilson test were used for statistical analysis, with P < 0.05. RESULTS Crown fractures occurred in 21 teeth with no change in the rate of fluid flow. Three teeth (filled with full-length MTA) showed sudden change in the rate of fluid flow through the root canal after cyclic loading. CONCLUSIONS The methodology reliably monitored fluid flow during cyclic loading. There was no difference between a 4-mm MTA apical plug and full-length MTA root filling after cyclic loading using a dynamic fluid-flow monitoring technique.
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Affiliation(s)
- Morgan Wu
- Restorative section, Melbourne Dental School, The University of Melbourne, Melbourne, VIC, Australia
| | - Joseph Palamara
- Restorative section, Melbourne Dental School, The University of Melbourne, Melbourne, VIC, Australia
| | - Peter Parashos
- Restorative section, Melbourne Dental School, The University of Melbourne, Melbourne, VIC, Australia
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Radeva E, Usunov T, Ivanov I, Genchev G. Apical Microleakage of four Materials after Root End Resection (In Vitro Study). ACTA MEDICA BULGARICA 2016. [DOI: 10.1515/amb-2016-0018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Summary
Hermetic sealing of the apical area after root end resection is essential to the success of endodontic surgery. To compare microleakage after root end resection of the two bioceramic sealers without retrograde filling - Total Fill BC Sealer and MTA Fillapex, and two materials for retrograde filling-MTA and Biodentine, using the method of penetration of dye - 2% methylene blue. Forty eight extracted single-rooted human teeth were used in this study. The resection was made at 3 mm from the root tip at an angle of 90 degree to the long axis of the tooth. The teeth were divided into 4 groups: 1st group (n = 9) - root canal obturation with Total Fill BC Sealer without retrograde filling; 2nd group (n = 8) - root canal obturation with MTA Fillapex without retrograde filling. 3rd group (n = 10) - retrograde ultrasonic cavity preparation and filling with MTA. 4th group (n = 8) - retrograde ultrasonic cavity preparation and filling with Biodentine. The outer surface of the root was covered with two layers of varnish, with the exception of the apical 3 mm and then immersed in 2% methylene blue for 72 h. The degree of penetration of the dye is measured in millimeters. The data was entered and processed with the statistical package IBM SPSS Statistics 22.0. We reject the null hypothesis when p < 0.05. With significantly higher value is the arithmetic mean of the group with the root canal obturation with Total Fill BC Sealer without retrograde filling - 2,01 mm; versus a retrograde filling with MTA - 0,68 mm and Biodentin - 0,51 mm; and no statistically significant difference with the group root canal obturation with MTA Fillapex - 1,76 mm. In the four material microleakage dye was observed, but to varying degrees.
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Affiliation(s)
- E. Radeva
- Department of Conservative Dentistry, Faculty of Dental Medicine, Medical University 1, G. Sofiyski blvd. Bg - 1431 Sofia, Bulgaria
| | - T. Usunov
- Department of Conservative Dentistry, Faculty of Dental Medicine, MU – Sofia, Bulgaria
| | | | - G. Genchev
- Department of Health Economics, Faculty of Public Health, MU – Sofia, Bulgaria
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Shojaee NS, Adl A, Sobhnamayan F, Khademi A, Hamedi M. In Vitro Evaluation of Different Solvents for Retrieval of Mineral Trioxide Aggregate and Calcium-Enriched Mixture. IRANIAN ENDODONTIC JOURNAL 2016; 11:223-7. [PMID: 27471536 PMCID: PMC4947849 DOI: 10.7508/iej.2016.03.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 05/11/2016] [Accepted: 05/31/2016] [Indexed: 11/30/2022]
Abstract
Introduction: The purpose of this study was to evaluate the effect of different solvents; carbonic acid (H2CO3), hydrochloric acid (HCl), chlorhexidine (CHX) and sodium hypochlorite (NaOCl) on the surface hardness of mineral trioxide aggregate (MTA) and calcium-enriched mixture (CEM) cement. Methods and Materials: Plexiglass molds were prepared and filled with Angelus MTA or CEM cement and then exposed to 2% carbonic acid, 37% hydrochloric acid, 2% chlorhexidine, 5.25% sodium hypochlorite and normal saline at intervals of 1 and 21 days, respectively (n=4). Surface microhardness of all specimens was analyzed by a universal testing machine and an electron microscope for some selected samples. Data were analyzed using the three-way ANOVA. Subgroup analysis was performed by Student’s t-test, One-way ANOVA and Tukey’s tests. The level of significance was set at 0.05. Results: On the first day, all solvents and on 21st day HCl, and H2CO3 were more effective in reducing the microhardness of MTA compared to CEM cement (P<0.05). Conclusion: The two experimental cements were differently affected by the solvents at specific time intervals. The solvents were more effective on MTA.
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Affiliation(s)
- Nooshin Sadat Shojaee
- Department of Endodontics, Dental School, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Alireza Adl
- Department of Endodontics, Biomaterials Research Center, Dental School, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Fereshte Sobhnamayan
- Department of Endodontics, Dental School, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Azam Khademi
- Student, Dental School, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mina Hamedi
- Student, Dental School, Shiraz University of Medical Sciences, Shiraz, Iran
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Nikhil V, Jha P, Suri NK. Effect of methods of evaluation on sealing ability of mineral trioxide aggregate apical plug. J Conserv Dent 2016; 19:231-4. [PMID: 27217635 PMCID: PMC4872576 DOI: 10.4103/0972-0707.181938] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Aim: The purpose of the study was to evaluate and compare the sealing ability of mineral trioxide aggregate (MTA) with three different methods. Materials and Methods: Forty single canal teeth were decoronated, and root canals were enlarged to simulate immature apex. The samples were randomly divided into Group MD = MTA-angelus mixed with distilled water and Group MC = MTA-angelus mixed with 2% chlorhexidine, and apical seal was recorded with glucose penetration method, fluid filtration method, and dye penetration methods and compared. Results: The three methods of evaluation resulted differently. The glucose penetration method showed that MD sealed better than MC, but difference was statistically insignificant (P > 0.05). The fluid filtration method resulted that Group MC was statistically insignificant superior to Group MD (P > 0.05). The dye penetration method showed that Group MC sealed statistically better than Group MD. Conclusion: No correlation was found among the results obtained with the three methods of evaluation. Addition of chlorhexidine enhanced the sealing ability of MTA according to the fluid filtration test and dye leakage while according to the glucose penetration test, chlorhexidine did not enhance the sealing ability of MTA. This study showed that relying on the results of apical sealing by only method can be misleading.
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Affiliation(s)
- Vineeta Nikhil
- Department of Conservative Dentistry and Endodontics, Subharti Dental College, Meerut, Uttar Pradesh, India
| | - Padmanabh Jha
- Department of Conservative Dentistry and Endodontics, Subharti Dental College, Meerut, Uttar Pradesh, India
| | - Navleen Kaur Suri
- Department of Conservative Dentistry and Endodontics, Subharti Dental College, Meerut, Uttar Pradesh, India
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Voveraityte V, Gleizniene S, Lodiene G, Grabliauskiene Z, Machiulskiene V. Spectrophotometric analysis of tooth discolouration induced by mineral trioxide aggregate after final irrigation with sodium hypochlorite: An in vitro
study. AUST ENDOD J 2016; 43:11-15. [DOI: 10.1111/aej.12149] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/17/2016] [Indexed: 11/30/2022]
Affiliation(s)
- Valdone Voveraityte
- Department of Dental and Oral Pathology; Faculty of Odontology; Lithuanian University of Health Sciences; Kaunas Lithuania
| | - Simona Gleizniene
- Department of Dental and Oral Pathology; Faculty of Odontology; Lithuanian University of Health Sciences; Kaunas Lithuania
| | - Greta Lodiene
- Department of Dental and Oral Pathology; Faculty of Odontology; Lithuanian University of Health Sciences; Kaunas Lithuania
| | - Zivile Grabliauskiene
- Department of Dental and Oral Pathology; Faculty of Odontology; Lithuanian University of Health Sciences; Kaunas Lithuania
| | - Vita Machiulskiene
- Department of Dental and Oral Pathology; Faculty of Odontology; Lithuanian University of Health Sciences; Kaunas Lithuania
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Agrafioti A, Tzimpoulas N, Chatzitheodoridis E, Kontakiotis EG. Comparative evaluation of sealing ability and microstructure of MTA and Biodentine after exposure to different environments. Clin Oral Investig 2015; 20:1535-40. [PMID: 26541151 DOI: 10.1007/s00784-015-1638-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 10/23/2015] [Indexed: 12/26/2022]
Abstract
OBJECTIVES The aim of this study was to evaluate the sealing ability and morphological microstructure of Biodentine in comparison to ProRoot mineral trioxide aggregate (MTA) after storage in an acidic environment. MATERIALS AND METHODS Biodentine and ProRoot MTA were prepared and packed into the canal lumen of dentin disks. Twenty specimens of each material were further randomly divided into two groups according to the storage media: group A: materials with saline as storage medium; group B: materials with citric acid buffered at pH 5.4 as storage medium. The sealing ability was evaluated at 1, 3, 6, and 24 h and 1 or 3 months, using a fluid transport model for quantitative analysis of endodontic microleakage. The morphological microstructures of the materials were also evaluated using scanning electron microscopy. RESULTS During the first 24 h, MTA showed greater fluid transport values than Biodentine in both environments. At the 3-month measurement, when the materials were stored in saline, MTA showed greater ability to prevent fluid movement than Biodentine (p < 0.0001). However, when the materials were stored in an acidic environment, no statistical significant difference was found after 3 months. After storage in saline, both materials showed an uneven crystalline surface with similar hexagonal crystals. The microstructure of Biodentine changed after exposure to citric acid, showing a relatively smooth surface with more spheroidal crystals. CONCLUSIONS The exposure to an acidic environment, within the limits of this study, seems to result in morphological changes of Biodentine in a different manner than MTA. MTA shows good ability to prevent fluid movement over time, in both environments. The ability of Biodentine to prevent fluid movement over time was enhanced in the acidic environment. CLINICAL RELEVANCE The findings of the present study could imply that both materials are indicated for use in an acidic environment.
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Affiliation(s)
- Anastasia Agrafioti
- Department of Endodontics, School of Dentistry, National and Kapodistrian University of Athens, 2 Thivon Str., 11527, Goudi, Athens, Greece
| | - Nestor Tzimpoulas
- Division of Endodontology, Department of Cariology, Endodontology and Pedodontology, Academic Centre for Dentistry Amsterdam, University of Amsterdam and VU University, Amsterdam, The Netherlands
| | - Elias Chatzitheodoridis
- Laboratory of Mineralogy, Petrology and Economic Geology, Department of Geological Sciences, School of Mining and Metallurgical Engineering, National Technical University of Athens, Athens, Greece
| | - Evangelos G Kontakiotis
- Department of Endodontics, School of Dentistry, National and Kapodistrian University of Athens, 2 Thivon Str., 11527, Goudi, Athens, Greece.
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Dudeja PG, Grover S, Srivastava D, Dudeja KK, Sharma V. Pulp Revascularization- It's your Future Whether you Know it or Not? J Clin Diagn Res 2015; 9:ZR01-4. [PMID: 26023665 DOI: 10.7860/jcdr/2015/10149.5768] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Accepted: 09/18/2014] [Indexed: 01/09/2023]
Abstract
Pulpal regeneration after tooth injury is not easy to accomplish. In teeth with immature apices and exposed vital pulp tissue, partial or complete pulpotomy is indicated to preserve pulpal function and allow continued root development. In many cases, injury causes loss of pulp vitality and arrested root development leading to a tooth with poor crown root ratio, a root with very thin walls, an open blunderbuss apex and development of apical pathosis. The ideal treatment in such cases would be to obtain further root development and thickening of dentinal walls by stimulating the regeneration of a functional pulp dentin complex. This outcome has been observed after reimplantation in avulsed immature permanent teeth but has been thought impossible in a necrotic infected tooth. This case series evaluates the efficacy of revascularization procedure in immature, non vital permanent teeth. Pulp regeneration was attempted in four patients at Department of Conservative Dentistry, ESIC Dental College, New Delhi using blood clotting approach. The cases were treated and followed up regularly at regular intervals ranging from 6 months to 3 years to assess the treatment response clinically and radiographically. The patients remained clinically asymptomatic with three out of four patients even responding positively to pulp responsiveness tests. Radiographic examination also revealed increased root formation and thickening of dentinal walls. It was concluded that the triad of a disinfected canal, a matrix (blood clot) in to which new tissue could grow and an effective coronal seal produced the desirable environment for successful revascularization.
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Affiliation(s)
- Pooja Gupta Dudeja
- Associate Professor, Department of Conservative Dentistry, ESIC Dental College and Hospital , Sector 15, Rohini, Delhi, India
| | - Shibani Grover
- Professor and Head, Department of Conservative Dentistry, ESIC Dental College and Hospital , Sector 15, Rohini, Delhi, India
| | - Dhirendra Srivastava
- Professor and Dean, Department of Oral and Maxillofacial Surgery, ESIC Dental College and Hospital , Sector 15, Rohini, Delhi, India
| | - Krishan Kumar Dudeja
- Formerly Professor, Department of Prosthodontics, Krishna Dental College , Mohan Nagar, Ghaziabad India
| | - Vivek Sharma
- Assistant Professor, Department of Conservative Dentistry, ESIC Dental College and Hospital , Sector 15, Rohini, Delhi, India
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Rahimi S, Asgary S, Samiei M, Bahari M, Vahid Pakdel SM, Mahmoudi R. The Effect of Thickness on the Sealing Ability of CEM Cement as a Root-end Filling Material. J Dent Res Dent Clin Dent Prospects 2015; 9:6-10. [PMID: 25973147 PMCID: PMC4417497 DOI: 10.15171/joddd.2015.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 01/01/2015] [Indexed: 11/09/2022] Open
Abstract
Background and aims. Different materials have been used for root-end filling during surgical endodontic treatment. The aim of this in vitro study was to evaluate the dye penetration in different thicknesses of calcium enriched mixture (CEM) cement as root-end filling material. Materials and methods. Following root canal filling in 70 extracted human single-rooted premolar teeth, the apical 3 mm of their root-ends was resected; the root-end cavities with depths of 1, 2 and 3 mm were prepared by ultrasonic retrotips and filled with CEM cement. After setting of cement, the roots were immersed in 2% Rhodamine B and the dye leakage was measured under stereomicroscope (×16) using Image J software. The data were analyzed by one-way ANOVA and Bonferroni post hoc tests at 5% significance level. Results. The means and standard deviations of dye penetration in the 1, 2, and 3 mm groups were 3395.5±1893.4, 3410.4±1440.5, and 2581.6±1852.9 μm, respectively. The one-way ANOVA analysis indicated significant differences (P < 0.001); however, the Bonferroni post hoc test revealed that only the positive control group differed significantly from the experimental groups (P < 0.001). Conclusion. The findings demonstrated CEM cement to have an adequate root-end sealing ability in 3-mm thickness.
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Affiliation(s)
- Saeed Rahimi
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran ; Professor, Department of Endodontics, School of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeed Asgary
- Iranian Center for Endodontic Research, Dental Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Samiei
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran ; Assistant professor, Department of Endodontics, School of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahmoud Bahari
- Assistant professor, Department of Operative Dentistry, School of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Seyyed Mahdi Vahid Pakdel
- Post-graduate student, Department of Prosthodontics, School of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
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Bidar M, Eslami N, Naghavi N, Fasihi Z, Attaran Mashhadi N. The effect of different concentrations of chlorhexidine gluconate on the compressive strength of mineral trioxide aggregate. J Dent Res Dent Clin Dent Prospects 2015; 9:1-5. [PMID: 25973146 PMCID: PMC4417486 DOI: 10.15171/joddd.2015.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Accepted: 07/27/2014] [Indexed: 11/12/2022] Open
Abstract
Background and aims. Substituting chlorhexidine (CHX) for water has been shown to enhance antimicrobial activity of mineral trioxide aggregate (MTA). The purpose of this study was to compare the compressive strength of MTA mixed with distilled water, 0.12% and 0.2% chlorhexidine. Materials and methods. MTA was mixed according to manufacturer's instructions in group I (n = 20). In groups II & III, 0.12% and 0.2% CHX liquid was substituted for water, respectively. Samples were condensed with moderate force into 20 tubes with 1.5×5 mm dimensions and were allowed to set for 72 hours at 37°C in 100% humidity. After being removed from the molds, their compressive strength was determined using Instron testing machine. Each group was divided into two subgroups according to the time of testing (at 72 hours, and one week). Fractured surfaces of 4 specimens in each group were then evaluated under Scanning Electron Microscope (SEM) to determine their microstructure. One-way ANOVA, Tukey, and paired sample t-test was used for statistical analysis. P < 0.05 was set as significant. Results. There was no significant difference between three groups in terms of their compressive strength after 72 hours. However, the compressive strength of group II was significantly higher than group I (P = 0.034) and group III (P = 0.021) after one week. Crystalline microstructure was similar in all groups. Conclusion. Substitution of 0.012% chlorhexidine for water significantly increased the compressive strength of MTA at 1 week without significant change in crystalline structure.
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Affiliation(s)
- Maryam Bidar
- Professor of Endodontics, Dental Research Center, Faculty of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Neda Eslami
- Assistant Professor of Orthodontics, Dental Research Center, Faculty of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Neda Naghavi
- Assistant Professor of Endodontics, Dental Research Center, Faculty of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Negin Attaran Mashhadi
- Student of Medicine, Member of Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Sachdeva GS, Sachdeva LT, Goel M, Bala S. Regenerative endodontic treatment of an immature tooth with a necrotic pulp and apical periodontitis using platelet-rich plasma (PRP) and mineral trioxide aggregate (MTA): a case report. Int Endod J 2014; 48:902-10. [PMID: 25369448 DOI: 10.1111/iej.12407] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2013] [Accepted: 11/02/2014] [Indexed: 12/30/2022]
Abstract
AIM To report the successful clinical and radiographic outcome of a regenerative endodontic treatment. SUMMARY A 16-year-old male patient presented with a discoloured, maxillary left lateral incisor with a necrotic pulp. Radiographic examination revealed an incompletely developed root with an open apex. Under local anaesthesia and rubber dam isolation, an access cavity was prepared and the necrotic pulpal remnants were removed. The canal was disinfected without mechanical instrumentation with 5.25% NaOCl solution and dried with sterile paper points. A triple antibiotic (metronidazole, ciprofloxacin and minocycline) mixed with distilled water was packed in the canal and left for 28 days. Ten millimetres of whole blood was drawn by venipuncture from the patients antecubital vein for preparation of platelet-rich plasma (PRP). After removal of the antibiotic mixture, the PRP was injected into the canal space up to the cementoenamel junction level. Three millimetres of white MTA was placed directly over the PRP clot. Two days later, the tooth was restored with permanent filling materials. The patient was recalled for 3, 6, 12, 24 and 36 months clinical/radiographic follow-up. A 3-year follow-up radiograph revealed resolution of the periapical lesion, increased thickening of the root walls, further root development and continued apical closure of the root apex. The tooth was not responsive to cold tests; however, sensitivity tests with an electric pulp tester (EPT) elicited a delayed positive response. KEY LEARNING POINTS Regeneration is a viable treatment modality that allows continued root development of immature teeth with open apices and necrotic pulps. Platelet-rich plasma appears to be a suitable scaffold for regeneration of vital tissues in teeth with a necrotic pulps and an associated periapical lesion. Regenerative endodontic procedures may offer an effective treatment option to save teeth with compromised structural integrity.
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Affiliation(s)
- G S Sachdeva
- Department of Conservative Dentistry and Endodontics, Himachal Dental College and Hospital, Sundernagar, India
| | - L T Sachdeva
- Department of Conservative Dentistry and Endodontics, Himachal Dental College and Hospital, Sundernagar, India
| | - M Goel
- Department of Conservative Dentistry and Endodontics, Himachal Dental College and Hospital, Sundernagar, India
| | - S Bala
- Department of Conservative Dentistry and Endodontics, Himachal Dental College and Hospital, Sundernagar, India
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Setbon H, Devaux J, Iserentant A, Leloup G, Leprince J. Influence of composition on setting kinetics of new injectable and/or fast setting tricalcium silicate cements. Dent Mater 2014; 30:1291-303. [DOI: 10.1016/j.dental.2014.09.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Revised: 06/16/2014] [Accepted: 09/16/2014] [Indexed: 10/24/2022]
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Adl A, Shojaee NS, Sobhnamayan F, Shojaee NS. The Effect of Chlorhexidine on Push-out Bond Strength of Mineral Trioxide Aggregate. ACTA ACUST UNITED AC 2014. [DOI: 10.17795/ajdr-21195] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Saghiri MA, Nazari A, Garcia-Godoy F, Asatourian A, Malekzadeh M, Elyasi M. Mechanical response of dental cements as determined by nanoindentation and scanning electron microscopy. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2013; 19:1458-1464. [PMID: 24067263 DOI: 10.1017/s1431927613013457] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This study evaluated the effects of nanoindentation on the surface of white mineral trioxide aggregate (WMTA), Bioaggregate and Nano WMTA cements. Cements were mixed according to the manufacturer directions, condensed inside glass tubes, and randomly divided into three groups (n = 8). Specimens were soaked in synthetic tissue fluid (pH = 7.4) and incubated for 3 days. Cement pellets were subjected to nanoindentation tests and observed by scanning electron microscopy. Then, the images were processed and the number of cracks and total surface area of defects on the surface were calculated and analyzed using ImageJ. Data were submitted to one-way analysis of variance and a post hoc Tukey's test. The lowest number of cracks and total surface of defects were detected in Nano WMTA samples; however, it was not significantly different from WMTA samples (p = 0.588), while the highest values were noticed in Bioaggregate specimens that were significantly different from Nano WMTA and WMTA (p = 0.0001). The surface of WMTA and Nano WMTA showed more resistance after exposure to nano-compressive forces which indicated a better surface tolerance against these forces and crack formation. This suggests these substances are more tolerant cement materials which can predictably withstand loaded situations in a clinical scenario.
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Affiliation(s)
- Mohammad Ali Saghiri
- Department of Dental Material, Center for Craniofacial Research, Azad University (Tehran Branch), Tehran, Iran
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21
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Removal of white mineral trioxide aggregate cement: a promising approach. BIOMED RESEARCH INTERNATIONAL 2013; 2013:469164. [PMID: 24089680 PMCID: PMC3780607 DOI: 10.1155/2013/469164] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 08/02/2013] [Accepted: 08/08/2013] [Indexed: 11/18/2022]
Abstract
Removal of MTA from dentin by applying 37% hydrochloric acid (HCl) to reduce microhardness and push-out bond strength. Forty dentin slices were filled with WMTA and divided into two groups (n = 20). Ten slices remained untreated while others were exposed to either HCl or phosphate buffer saline (PBS) and all samples were subjected to pushout test. The mode of bond failures was determined by SEM analysis. Later, twenty glass tubes were filled with WMTA and divided into two groups (n = 10). One side of tube was exposed to HCl or PBS while the other side remained untreated and the microhardness was analyzed by testing machine. HCl showed significantly lower pushout strength and microhardness values (P = 0.0001), (P = 0.0001). HCl treated samples showed mixed bond failures dominantly, while PBS samples mostly showed adhesive failures. The results of this study can suggest the 37% HCl as an effective solution to aid the removal of MTA from the dentin surfaces.
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Galhotra V, Sofat A, Pandit IK, Gambhir RS, Srivastava N, Gugnani N. Comparative evaluation of microleakage of various retrograde filling materials: An in vitro study. J Nat Sci Biol Med 2013; 4:403-8. [PMID: 24082741 PMCID: PMC3783789 DOI: 10.4103/0976-9668.117014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
OBJECTIVE The present study is envisaged to evaluate and compare the microleakage of mineral trioxide aggregate (MTA) with commonly used retrograde filling materials, like light-cured composite with dentin-bonding agents, light-cured glass ionomer cement (LC GIC) and resin-modified zinc oxide eugenol. MATERIALS AND METHODS Ninety freshly extracted non-carious single-rooted human anterior teeth were used in the study. They were randomly divided into four experimental groups and two control groups of 15 each. Following the biomechanical preparation, all teeth were obturated and then the apices of the obturated teeth were resected by removing 3 mm of each apex at 90° to the long axis of the tooth with a straight fissure bur in a high-speed air-rotor handpiece with water coolant. A 3-mm-deep root end cavity was prepared and the root end fillings were placed as per the manufacturer's instructions and according to the groups divided. The samples were then immersed in 1% methylene blue at room temperature for 72 h, 96 h and 1 week and the dye penetration was measured. RESULTS AND CONCLUSION All the four materials used in the study showed some microleakage throughout the experimental period. The sealing ability in terms of microleakage can be summarized as: MTA > Composite resin with dentin bonding agent > LC GIC > Resin modified zinc oxide eugenol.
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Affiliation(s)
- Virat Galhotra
- Department of Pedodontics and Preventive Dentistry, Gian Sagar Dental College and Hospital, Rajpura, Punjab, India
| | - Anjali Sofat
- Department of Prosthodontics, Gian Sagar Dental College and Hospital, Rajpura, Punjab, India
| | - Inder K. Pandit
- Department of Pedodontics and Preventive Dentistry, D.A.V. Dental College and Hospital, Yamunagar, Haryana, India
| | - Ramandeep Singh Gambhir
- Department of Public Health Dentistry, Gian Sagar Dental College and Hospital, Rajpura, Punjab, India
| | - Nikhil Srivastava
- Department of Pedodontics and Preventive Dentistry, Subharti Dental College and Hospital, Meerut, Uttar Pradesh, India
| | - Neeraj Gugnani
- Department of Pedodontics and Preventive Dentistry, D.A.V. Dental College and Hospital, Yamunagar, Haryana, India
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Orhan EO, Maden M, Senguüven B. Odontoblast-like cell numbers and reparative dentine thickness after direct pulp capping with platelet-rich plasma and enamel matrix derivative: a histomorphometric evaluation. Int Endod J 2011; 45:317-25. [DOI: 10.1111/j.1365-2591.2011.01977.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Asgary S, Ehsani S. MTA resorption and periradicular healing in an open-apex incisor: A case report. Saudi Dent J 2011; 24:55-9. [PMID: 23960529 DOI: 10.1016/j.sdentj.2011.08.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2011] [Revised: 06/21/2011] [Accepted: 08/18/2011] [Indexed: 11/30/2022] Open
Abstract
This case report describes the periradicular healing and resorption of an unintentional extrusion of mineral trioxide aggregate (MTA) in an open-apex central incisor. A 22-year old female with a symptomatic open-apex right maxillary central incisor associated with a periradicular lesion was referred for evaluation and treatment. After chemomechanical debridement, the apical third of the root canal was filled with MTA to create an apical plug. Postoperative radiographs showed the extrusion of MTA into the periradicular lesion. The tooth was then restored with a post and crown. At the 2-year follow-up, the tooth was asymptomatic and radiographs revealed complete healing of the periradicular area. At the 7-year follow-up, complete resorption of the extruded MTA was evident. The results of this case study indicate that complete resorption of extruded MTA is possible in the long term; however, the extrusion of MTA in open-apex tooth should still be avoided.
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Affiliation(s)
- Saeed Asgary
- Iranian Center for Endodontic Research, Dental Research Center, Dental School, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Beslot-Neveu A, Bonte E, Baune B, Serreau R, Aissat F, Quinquis L, Grabar S, Lasfargues JJ. Mineral trioxyde aggregate versus calcium hydroxide in apexification of non vital immature teeth: study protocol for a randomized controlled trial. Trials 2011; 12:174. [PMID: 21752247 PMCID: PMC3144013 DOI: 10.1186/1745-6215-12-174] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2010] [Accepted: 07/13/2011] [Indexed: 11/11/2022] Open
Abstract
Background Pulp necrosis is one of the main complications of dental trauma. When it happens on an immature tooth, pulp necrosis implies a lack of root maturation and apical closure. A therapy called apexification is required to induce the formation of a calcified apical barrier allowing a permanent and hermetic root filling. The aim of this prospective randomized clinical trial is to compare Mineral Trioxide Aggregate(MTA)with Calcium Hydroxide(CH)as materials used to induce root-end closure in necrotic permanent immature incisors. Methods/Design This study, promoted by AP-HP, was approved by the ethics committee(CPP Paris Ile de France IV). 34 children aged from 6 to 18 years and presenting a non-vital permanent incisor are selected. Prior to treatment, an appropriate written consent has to be obtained from both parents and from children. Patients are then randomly assigned to either the MTA(experimental)or CH(control)groups. Recalls are performed after 3, 6 and 12 months to determine the presence or absence of a calcified apical barrier through the use of clinical and radiographic exams. Additional criteria such as clinical symptoms, apical radiolucencies, periapical index(PAI)are also noted. Trial registration ClinicalTrials.gov no. NCT00472173 (First inclusion: May 10, 2007; Last inclusion: April 23, 2009; study completed: April 15, 2010)
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Nair U, Ghattas S, Saber M, Natera M, Walker C, Pileggi R. A comparative evaluation of the sealing ability of 2 root-end filling materials: an in vitro leakage study using Enterococcus faecalis. ACTA ACUST UNITED AC 2011; 112:e74-7. [PMID: 21507688 DOI: 10.1016/j.tripleo.2011.01.030] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2010] [Revised: 01/13/2011] [Accepted: 01/22/2011] [Indexed: 10/18/2022]
Abstract
OBJECTIVE The purpose of this study was to evaluate the sealing ability of EndoSequence Bioceramic Root-end Repair (BCRR) material when compared with white mineral trioxide aggregate (WMTA). STUDY DESIGN Forty single-rooted teeth were instrumented, obturated with gutta-percha, root-end resected, and retrofilled with 2 different materials: white ProRoot MTA (WMTA) (n = 15) and BCRR (n = 15). Unfilled specimens (n = 10) received no retrofill and were used as controls. All groups received E. faecalis in a created reservoir coronal to the root filling and the presence of microleakage was evaluated by counting the colony-forming units from each specimen. The results were analyzed with 1-way analysis of variance. RESULTS There was no significant difference in leakage between the 2 experimental groups, but there was a significant difference with the control (P ≤ .05). CONCLUSIONS This study suggests that BCRR is equivalent in sealing ability to WMTA when used as root-end filling material in vitro.
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Affiliation(s)
- Uma Nair
- Department of Endodontics, College of Dentistry, University of Florida, Gainesville, FL 32610-0436, USA.
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Abstract
AIMS To evaluate (i) the sealing ability of two sealers, mineral trioxide aggregate sealer (MTAS) and Pulp Canal Sealer (PCS), used with gutta-percha utilizing the fluid filtration method, (ii) leaching and surface characteristics in Hank's balanced salt solution (HBSS) over a period of time. METHODOLOGY Surface characteristics in HBSS were evaluated under the scanning electron microscope after 1 and 28 days, and the leaching of both sealers were assessed by inductively coupled plasma atomic absorption spectrometry (ICP-AAS). In addition, 24 single rooted extracted teeth were root filled using warm vertical compaction with either MTAS or PCS used as sealers with gutta-percha. Four teeth were used as positive and negative controls. Sealing ability was evaluated after 1 or 28 days using the fluid filtration method. RESULTS Mineral trioxide aggregate sealer exhibited crystalline deposits rich in calcium and phosphorus on its surface when in contact with a physiological solution. These crystalline deposits were absent in PCS and on MTAS stored at 100% humidity. The sealing ability of MTAS was similar to that of PCS. CONCLUSIONS The novel sealer based on mineral trioxide aggregate had comparable sealing ability to a proprietary brand sealer cement. In contact with a simulated body fluid, the MTA sealer released calcium ions in solution that encouraged the deposition of calcium phosphate crystals.
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Affiliation(s)
- J Camilleri
- Department of Building and Civil Engineering, Faculty for the Built Environment, University of Malta, Malta, Italy.
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Abstract
"It has been said that Mineral Trioxide Aggregate is driving an endodontic revolution. Discuss this statement considering the biological and clinical attributes of this innovative material."
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Affiliation(s)
- Jason Khoury
- University of Adelaide, School of Dentistry, South Australia, Australia.
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Leal F, De-Deus G, Brandão C, Luna AS, Fidel SR, Souza EM. Comparison of the root-end seal provided by bioceramic repair cements and White MTA. Int Endod J 2011; 44:662-8. [DOI: 10.1111/j.1365-2591.2011.01871.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Pannkuk TF. A New Technique for Nonsurgical Retreatment of Teeth with Amalgam Root End Fillings: Case Series. J Endod 2011; 37:414-9. [DOI: 10.1016/j.joen.2010.11.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2010] [Revised: 11/10/2010] [Accepted: 11/12/2010] [Indexed: 10/18/2022]
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Affiliation(s)
- Minju Song
- Department of Conservative Dentistry, Microscope Center, Yonsei University College of Dentistry, Seoul, Korea
| | - Euiseong Kim
- Department of Conservative Dentistry, Microscope Center, Yonsei University College of Dentistry, Seoul, Korea
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Baek SH, Lee WC, Setzer FC, Kim S. Periapical bone regeneration after endodontic microsurgery with three different root-end filling materials: amalgam, SuperEBA, and mineral trioxide aggregate. J Endod 2010; 36:1323-5. [PMID: 20647089 DOI: 10.1016/j.joen.2010.04.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2010] [Revised: 04/07/2010] [Accepted: 04/29/2010] [Indexed: 11/28/2022]
Abstract
INTRODUCTION The purpose of this study was to determine the bone regeneration potential to different root-end filling materials by evaluating the distance between the materials and newly regenerated bone after root-end surgery. MATERIAL AND METHODS Periapical lesions were induced in premolars and molars of five female beagle dogs. The teeth were treated endodontically after the development of the lesions. After 1 week, the teeth underwent root-end surgery using modern microsurgical techniques. Three different root-end filing materials were used: amalgam (Tytin; Kerr Mfg Co, Romulus, MI), SuperEBA (Bosworth, Skokie, IL), and mineral trioxide aggregates (MTA; Dentsply, York, PA). After 4 months, the dogs were sacrificed, and the jaws were prepared for histological sectioning. The distances from the root-end filling materials to the regenerated bone were determined by the evaluation of microradiographic images of the sections with imaging software (Sigma Scan/Image; Jandel Scientific Software, San Rafael, CA). The results were statistically analyzed with analysis of variance using Sigma Stat software (Jandel Scientific Software, San Rafael, CA). RESULTS The mean distances from the newly regenerated bone were 0.397 +/- 0.278 mm in the MTA group, 0.756 +/- 0.581 mm in the SuperEBA group, and 1.290 +/- 0.386 mm in the amalgam group. There was a statistically significant difference between the amalgam and MTA groups (p < 0.05). No significant differences existed for amalgam versus SuperEBA and SuperEBA versus MTA. CONCLUSION MTA showed the most favorable periapical tissue response. The distance from MTA to the regenerated bone was similar to the normal average periodontal ligament thickness in dogs.
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Affiliation(s)
- Seung-Ho Baek
- Department of Conservative Dentistry, School of Dentistry, Seoul National University, Seoul, Korea
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Wang WH, Wang CY, Shyu YC, Liu CM, Lin FH, Lin CP. Compositional characteristics and hydration behavior of mineral trioxide aggregates. J Dent Sci 2010. [DOI: 10.1016/s1991-7902(10)60009-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Bakland LK. Revisiting traumatic pulpal exposure: materials, management principles, and techniques. Dent Clin North Am 2009; 53:661-vi. [PMID: 19958904 DOI: 10.1016/j.cden.2009.06.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
This article presents current concepts of managing teeth with traumatic pulp exposures. The article includes a description of the traumatology of crown fractures, discussion of treatment considerations, a summary of materials for vital pulp therapy, and an outline of techniques for treating pulp exposures.
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Affiliation(s)
- Leif K Bakland
- Department of Endodontics, School of Dentistry, Loma Linda University, Loma Linda, CA 92350, USA.
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35
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Effects of different irrigation regimens on the sealing properties of repaired furcal perforations. ACTA ACUST UNITED AC 2009; 107:e91-5. [DOI: 10.1016/j.tripleo.2008.10.024] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2008] [Revised: 10/07/2008] [Accepted: 10/21/2008] [Indexed: 11/20/2022]
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36
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Rahimi S, Shahi S, Lotfi M, Yavari HR, Charehjoo ME. Comparison of microleakage with three different thicknesses of mineral trioxide aggregate as root-end filling material. J Oral Sci 2009; 50:273-7. [PMID: 18818462 DOI: 10.2334/josnusd.50.273] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
The aim of this study was to compare the microleakage at three different thicknesses of mineral trioxide aggregate (MTA) as a root-end filling material. Ninety extracted human maxillary incisor teeth were selected and the root canals of the teeth were cleaned, shaped and obturated with gutta percha and AH-plus sealer. Teeth were randomly divided into 3 groups each containing 20 experimental samples, and 5 positive and 5 negative controls. In the first, second and third experimental groups, cavities of 1 mm, 2 mm and 3 mm in depth, respectively, were prepared and filled with MTA. Leakage was determined by the dye penetration method using India ink, and a stereomicroscope at x16 magnifications and 0.1 mm accuracy. The microleakage in the 3-mm and 2-mm root-end cavities was less than at 1 mm depth, but analysis of variance revealed no significant differences among the three different thicknesses.
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Affiliation(s)
- Saeed Rahimi
- Department of Endodontics, Tabriz Dental School, Tabriz University (Medical Sciences), Tabriz, Iran
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Abstract
OBJECTIVE The aim of this study was to present a review of the reported literature on: (i) the physical and chemical properties; and (ii) clinical applications of mineral trioxide aggregate (MTA) in the practice of paediatric dentistry. METHOD Electronic literature search of scientific papers from January 1993 to June 2008 was carried out on the MEDLINE, Embase, Entrez Pubmed, and Scopus databases using specific key words. The search yielded 448 papers, out of which 100 were identified as conforming to the applied criteria. These papers formed the basis of the review and the clinical scenarios presented which demonstrate the application of MTA in the practice of paediatric dentistry. CONCLUSION Paediatric dentists have successfully employed MTA in a variety of endodontic/restorative applications since the late 1990s. Clinical impressions have generally been favourable and support the findings of laboratory and animal-based investigations. Very few clinical studies have been reported so far in humans, and although these have been positive, the body of research is currently insufficient to enable a meaningful systematic review and meta-analysis.
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Affiliation(s)
- Vidya Srinivasan
- Department of Paediatric Dentistry, Edinburgh Dental Institute & Royal Hospital for Sick Children, Edinburgh, UK.
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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, Eghbal MJ, Parirokh M. Sealing ability of a novel endodontic cement as a root-end filling material. J Biomed Mater Res A 2008; 87:706-9. [DOI: 10.1002/jbm.a.31678] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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40
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A comparative study of three treatment methods of direct pulp capping in canine teeth of cats: a histologic evaluation. Lasers Med Sci 2008; 25:9-15. [DOI: 10.1007/s10103-008-0584-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2007] [Accepted: 05/20/2008] [Indexed: 10/21/2022]
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41
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Tuna D, Ölmez A. Clinical long-term evaluation of MTA as a direct pulp capping material in primary teeth. Int Endod J 2008; 41:273-8. [DOI: 10.1111/j.1365-2591.2007.01339.x] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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42
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Bernardineli N, Bramante CM, de Moraes IG, Garcia RB. Lysanda paste: a new option for root-end filling. J Appl Oral Sci 2007; 15:317-20. [PMID: 19089151 DOI: 10.1590/s1678-77572007000400014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2007] [Accepted: 08/08/2007] [Indexed: 08/30/2023] Open
Abstract
This study aimed to compare the apical sealing of root-end fillings performed with Lysanda (zinc oxide-eugenol paste) with radiopacifiers (iodoform or zinc oxide) and calcium hydroxide. Root-end cavities were prepared and filled with different materials, as follows: Group I - Lysanda paste with iodoform; Group II - Lysanda paste with iodoform and calcium hydroxide; Group III - Lysanda paste with iodoform and zinc oxide; Group IV - Lysanda paste with zinc oxide; Group V - mineral trioxide aggregate (MTA). After filling, the teeth were immersed in 2% methylene blue for analysis of marginal leakage. It was observed that marginal leakage occurred in all groups. Lysanda paste with iodoform showed the lowest leakage, with no statistically significant difference compared to the other groups. All materials can be considered as good options for root-end filling.
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Affiliation(s)
- Norberti Bernardineli
- Department of Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil.
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43
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Hong HH, Tsai AI, Liang CH, Kuo SB, Chen CC, Tsai TP, Lu CF. Preserving pulpal health of a geminated maxillary lateral incisor through multidisciplinary care. Int Endod J 2006; 39:730-7. [PMID: 16916363 DOI: 10.1111/j.1365-2591.2006.01150.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIM To report the multidisciplinary care of an unaesthetic geminated maxillary lateral incisor tooth, which allowed its preservation in the mouth. SUMMARY Preoperative examination of an unsightly geminated maxillary lateral incisor (tooth 22) demonstrated two pulp chambers and open apices, with normal pulp sensitivity responses. At surgery, a periodontal mucoperiosteal flap was reflected and the distal part of the geminated tooth was removed. The exposed root canal of the preserved tooth was sealed with mineral trioxide aggregate (MTA). The extraction socket and osseous defect was grafted with decalcified freeze-dried bone allograft (DFDBA) before flap closure. During follow-up, distal caries in tooth 22 and a diastema between tooth 22 and 23 were managed with composite resin restorations. Forty-two months postoperatively, normal thermal and electrical pulp sensitivity tests confirmed pulp health. Convincing apexogenesis and dentinogenesis of the developing root was confirmed by radiographic examination. Acceptable periodontal health including 3-4 mm clinical probing depths was achieved. Optimizing aesthetics and occlusion was accomplished without orthodontic treatment.
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Affiliation(s)
- H-H Hong
- Division of Periodontics, Chang Gung Memorial Hospital Lin-Kou Medical Center, Gueishan, Taiwan
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Shahi S, Rahimi S, Lotfi M, Yavari H, Gaderian A. A Comparative Study of the Biocompatibility of Three Root-end Filling Materials in Rat Connective Tissue. J Endod 2006; 32:776-80. [PMID: 16861081 DOI: 10.1016/j.joen.2006.01.014] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2005] [Revised: 01/22/2006] [Accepted: 01/25/2006] [Indexed: 11/30/2022]
Abstract
The purpose of this study was to compare the biocompatibility of amalgam, gray MTA and white MTA in the connective tissue of rats. We used 45 Sprague-Dawley rats in this study. The rats were divided into three groups. Root end filling materials were placed in polyethylene tubes and inserted into the rats' connective tissue through incisions. The rats were sacrificed after 3 days, 1 wk, and 3 wk, respectively. Histologic samples were sectioned in 5-mum thicknesses and stained with hematoxylin and eosin. Kruskal-Wallis test was used for statistical analysis. The results showed that after 3 days, white MTA was more biocompatible than gray MTA and amalgam. After 1 week, gray MTA was more biocompatible than white MTA and Amalgam. After 3 wk, there were no significant differences between experimental groups and the control group.
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Affiliation(s)
- Shahriar Shahi
- Department of Endodontics, Tabriz Faculty of Dentistry, Azarbaidjan Shargi, Iran.
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45
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Kogan P, He J, Glickman GN, Watanabe I. The effects of various additives on setting properties of MTA. J Endod 2006; 32:569-72. [PMID: 16728254 DOI: 10.1016/j.joen.2005.08.006] [Citation(s) in RCA: 192] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2005] [Revised: 08/22/2005] [Accepted: 08/22/2005] [Indexed: 11/25/2022]
Abstract
Delayed setting times may limit the use of mineral trioxide aggregate (MTA) in endodontic procedures. The purpose of this study was to identify types and amounts of MTA additives to enhance its setting properties. Additives tested include saline, 2% lidocaine, 3.0% NaOCl gel, chlorhexidine gluconate gel, K-Y Jelly, 3% and 5% CaCl2. The setting times were evaluated using a Vicat apparatus; compressive strengths of set materials were evaluated with an Instron machine. NaOCl gel, K-Y Jelly and 5% CaCl2 decreased the setting time to 20 to 25 min; compressive strengths of these set materials were significantly lower than MTA mixed with water (p < 0.05). Because MTA mixed with NaOCl gel demonstrated good working properties and improved setting time, this combination may be a viable option in single visit procedures where compressive strength of the material is not a critical issue.
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Affiliation(s)
- Paul Kogan
- Department of Endodontics, Baylor College of Dentistry, The Texas A&M University System Health Science Center, Dallas, Texas 75246, USA
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Yeung P, Liewehr FR, Moon PC. A Quantitative Comparison of the Fill Density of MTA Produced by Two Placement Techniques. J Endod 2006; 32:456-9. [PMID: 16631848 DOI: 10.1016/j.joen.2005.08.008] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2005] [Revised: 08/24/2005] [Accepted: 08/24/2005] [Indexed: 11/17/2022]
Abstract
This study compared the fill density of mineral trioxide aggregate (MTA) produced by hand condensation with that produced by hand condensation with indirect ultrasonic (US) activation. Sixty acrylic blocks with straight or curved canals were instrumented to an apical size 45, and weighed with a digital electronic balance. In 30 randomly chosen specimens, the canal was filled with MTA by hand condensation and weighed. The MTA was removed; the canal was rinsed and dried, and refilled using hand condensation with indirect US activation. In the other 30 specimens, the procedure was carried out identically but in reverse order. The blocks were then reweighed. The weight of the MTA fill produced by the two placement methods in the two canal configurations was analyzed by a two-way ANOVA. Hand condensation with indirect US activation resulted in an MTA fill that was statistically significantly heavier, and thus denser, than that accomplished by hand condensation alone in both curved and straight canals (p < 0.0001).
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Montellano AM, Schwartz SA, Beeson TJ. Contamination of Tooth-Colored Mineral Trioxide Aggregate Used as a Root-End Filling Material: A Bacterial Leakage Study. J Endod 2006; 32:452-5. [PMID: 16631847 DOI: 10.1016/j.joen.2005.07.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2005] [Revised: 07/25/2005] [Accepted: 07/26/2005] [Indexed: 10/25/2022]
Abstract
This experiment investigated the ability of tooth-colored mineral trioxide aggregate (MTA) to maintain an apical seal in the presence of bacteria when contaminated with blood, saline or saliva. Ninety extracted human teeth with single canals were randomly placed into six groups of 15. Canals were prepared to size 50. The apical 3 mm of each root was removed and 3 mm root-end preparations were made with a #329 bur. Root-end preparations in groups 1 through 3 were filled with MTA after contamination with blood, saline, or saliva, respectively. In group 4, uncontaminated root-end preparations were filled with MTA. Groups 5 and 6 served as negative and positive controls. A tube/tooth assembly was utilized to suspend each root end in Trypticase Soy Broth (TSB). The access chambers were filled with Staphylococcus epidermidis. Positive growth over thirty days was demonstrated by turbidity of the TSB. Vitek analysis was used to confirm the presence of S. epidermidis in the positive samples. Data evaluation consisted of a chi(2) analysis (p < 0.05). Although all experimental groups demonstrated leakage, tooth-colored MTA contaminated with saliva (group 3) leaked significantly more than the uncontaminated tooth-colored MTA (group 4) (p = 0.028).
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Maltezos C, Glickman GN, Ezzo P, He J. Comparison of the Sealing of Resilon, Pro Root MTA, and Super-EBA as Root-End Filling Materials: A Bacterial Leakage Study. J Endod 2006; 32:324-7. [PMID: 16554203 DOI: 10.1016/j.joen.2005.08.015] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2005] [Revised: 08/29/2005] [Accepted: 08/31/2005] [Indexed: 11/30/2022]
Abstract
The purpose of this in vitro study was to compare the root-end sealing of the Resilon/Epiphany system (RES) to Pro Root MTA and Super-EBA using a bacterial leakage system. Fifty-five extracted teeth were instrumented and root-ends were resected and ultrasonically prepared. Test materials were placed in the root-end preparations; Streptococcus salivarius was introduced coronally and the apical 4 mm were immersed in BHI culture medium with phenol red indicator. Bacterial leakage was monitored every 24 h for 4 wk. All positive controls leaked within 24 h; none of the negative controls leaked. Based on chi2 analysis (p < 0.05), RES and MTA leaked significantly less than Super-EBA. There was no statistical difference between RES and MTA. RES may be a viable option as a root-end filling material with good surgical isolation.
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Affiliation(s)
- Christos Maltezos
- Department of Endodontics, Baylor College of Dentistry, The Texas A&M University System Health Science Center, Dallas, Texas 75246, USA
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Valera MC, Camargo CHR, Carvalho AS, Gama ERP. In vitro evaluation of apical microleakage using different root-end filling materials. J Appl Oral Sci 2006; 14:49-52. [PMID: 19089030 PMCID: PMC4327171 DOI: 10.1590/s1678-77572006000100010] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2004] [Revised: 01/28/2005] [Accepted: 10/19/2005] [Indexed: 11/25/2022] Open
Abstract
The objective of this study was to evaluate the apical leakage of retrograde cavities filled with Portland Cement (Concrebrás S/A-MG-Brazil), ProRoot MTA (Dentsply International, Johnson City, TN, USA) and Sealapex (Kerr Corporation, Orange, California, USA) with addition of zinc oxide (Odahcam Herpo Produtos Dentários Ltda, Rio de Janeiro, RJ, Brazil). Forty-two extracted single-rooted human teeth were decoronated and used for this study. The root canals were instrumented at 1.0mm short of the apical foramen using the step-back technique to an apical ISO size 60. The roots were obturated with gutta-percha points and sealer Sealapex (Kerr Corporation-USA) and then 3mm of each root apex was sectioned at a 90 degrees angle. Ultrasonic retrograde preparation was performed with a diamond tip to 3mm depth and the roots were randomly divided into 3 groups according to the filling material: G1-Portland, G2-ProRoot MTA, G3- Sealapex zinc oxide-added cement. The root surfaces were covered with nail varnish up to 2mm from the apical foramen, immersed in simulated tissue fluid for 30 days, and then immersed in 0.2% Rhodamine B solution for 24 hours for evaluation of marginal leakage. The results showed mean leakage of 0.75, 0.35 and 0.35 for groups 1, 2 and 3, respectively; however, Kruskal-Wallis test revealed that there was no statistically significant difference among the results (p>0.05).
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Oruçoğlu H, Sengun A, Yilmaz N. Apical Leakage of Resin Based Root Canal Sealers with a New Computerized Fluid Filtration Meter. J Endod 2005; 31:886-90. [PMID: 16306824 DOI: 10.1097/01.don.0000164134.79052.b3] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
In this in vitro study, the apical leakage of three root-canal sealers: AH Plus, Diaket, and EndoREZ was evaluated using a new computerized fluid filtration meter. Forty-five extracted human premolar teeth with single root and canal were used. The coronal part of each tooth was removed and the root canals were prepared using GT Rotary files and crown-down technique. The roots were randomly divided into three groups of 15 samples, filled with one of the test materials and gutta-percha cones by the cold lateral condensation technique and were stored at 37 degrees C and 100% humidity for 7 days. One-week later, apical parts of roots of 10 +/- 0.05 mm were attached to computerized fluid filtration meter. Apical leakage quantity was determined as microl/cmH(2)O/min(-1). Statistical analysis indicated that root fillings with Diaket in combination with cold lateral condensation technique showed lower apical leakage than the others (p < 0.05). In addition, this new computerized fluid filtration meter allowed quantitative measurement of leakage easily. As it is a newly developed device to measure apical leakage of endodontic sealers, the reliability of it needed to be tested.
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Affiliation(s)
- Hasan Oruçoğlu
- Department of Endodontics, Faculty of Dentistry, Selçuk University, Konya, Turkey.
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