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Alzahrani AY, Al Tuwirqi AA, Bamashmous NO, Bakhsh TA, El Ashiry EA. Non-Destructive In Vitro Evaluation of an Internal Adaptation of Recent Pulp-Capping Materials in Permanent Teeth Using OCT and Micro-CT. CHILDREN (BASEL, SWITZERLAND) 2023; 10:1318. [PMID: 37628317 PMCID: PMC10453480 DOI: 10.3390/children10081318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 07/27/2023] [Accepted: 07/27/2023] [Indexed: 08/27/2023]
Abstract
The objective of this study was to assess and compare the internal adaptation of various pulp-capping materials, namely TheraCal, Biodentine, and mineral trioxide aggregate (MTA), on the dentin of permanent teeth through the utilization of micro-computed tomography (MCT) and optical coherence tomography (OCT). Thirty permanent molars were divided into three groups using a random process: group A (TheraCal), group B (Biodentine), and group C (MTA, which served as the control group). On the buccal surface of each tooth, a class V cavity of a standardized cylindrical shape was prepared. Subsequently, the respective pulp-capping material was applied to the cavity based on the assigned group, followed by restoration with composite resin. Based on the MCT results, it was observed that group A had a considerably larger gap volume in comparison to groups B and C (p < 0.001). There was no significant difference in gap volume between groups B and C. Regarding the OCT findings, group A displayed a substantially higher level of light reflection than groups B and C (p < 0.001). Group C exhibited a significantly lower level of light reflection in comparison to group B (p < 0.001). Biodentine and MTA revealed similar outcomes in terms of how well they adhered to the dentinal surface in permanent teeth. Both materials exhibited superior performance in comparison to TheraCal. The utilization of OCT in clinical practice could be advantageous as it enables dentists to monitor and evaluate restorations during post-treatment follow-up. It is imperative to intensify efforts aimed at making OCT equipment more accessible and applicable, overcoming its current limitations, and allowing for its widespread utilization in clinical practice.
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Affiliation(s)
- Ahmed Y. Alzahrani
- Pediatric Dentistry Department, Faculty of Dentistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (A.Y.A.); (N.O.B.); (E.A.E.A.)
| | - Amani A. Al Tuwirqi
- Pediatric Dentistry Department, Faculty of Dentistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (A.Y.A.); (N.O.B.); (E.A.E.A.)
| | - Nada O. Bamashmous
- Pediatric Dentistry Department, Faculty of Dentistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (A.Y.A.); (N.O.B.); (E.A.E.A.)
| | - Turki A. Bakhsh
- Restorative Dentistry Department, Faculty of Dentistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Eman A. El Ashiry
- Pediatric Dentistry Department, Faculty of Dentistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (A.Y.A.); (N.O.B.); (E.A.E.A.)
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Comparison of Rat Connective Tissue Response to BioMTA, Angelus MTA, and Root MTA. Int J Biomater 2021; 2021:7415302. [PMID: 34512762 PMCID: PMC8424238 DOI: 10.1155/2021/7415302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 07/30/2021] [Accepted: 08/17/2021] [Indexed: 11/17/2022] Open
Abstract
Due to the widespread use of MTA in dentistry and various brands of this product, we decided to compare the three brands available in the country market by their biocompatibility. We divided 20 male Wistar rats into four groups. After local anesthesia and washing, we made two incisions on both sides (4 incisions in total). The experimental groups were Angelus MTA (Angelus, Brazil), BioMTA (CERKAMED, Poland), Root MTA (Dr. Lotfi, Tabriz, Iran), and the control group. The resulting paste was placed in a tube and implanted subcutaneously into male Wistar rats. Wistar rats were sacrificed 7, 15, 30, and 60 days later, with high anesthetic doses. The sample implanted in 10% formalin was stabilized after tissue processing and H&E staining under a microscope. The inflammatory reaction in the tissues received different scores at the beginning of the tube opening. BioMTA had the highest inflammatory response among the groups, but the difference was not statistically significant (p > 0.05). Also, there was no significant difference between the groups' granulation and calcification (p < 0.05). There was a significant difference between BioMTA, Angelus MTA, Root MTA, and control groups in fibrous capsule formation (p < 0.05). Angelus MTA showed the lowest mean fibrous capsule formation in all periods. The effects of Angelus MTA, Root MTA, and BioMTA on connective tissue were investigated and compared. According to this study, these materials have good biocompatibility. According to the findings and statistical analysis, Angelus MTA has the most biocompatibility.
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Shin JH, Ryu JJ, Lee SH. Antimicrobial activity and biocompatibility of the mixture of mineral trioxide aggregate and nitric oxide-releasing compound. J Dent Sci 2020; 16:29-36. [PMID: 33384775 PMCID: PMC7770295 DOI: 10.1016/j.jds.2020.07.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/30/2020] [Indexed: 12/02/2022] Open
Abstract
Background/purpose Antimicrobial activity and biocompatibility of root canal sealer are related to the success of endodontic treatments. This study investigated the efficacy of mixture of mineral trioxide aggregate (MTA) and a NO-releasing compound for the antimicrobial activity, biocompatibility, and physical properties. Materials and methods MTA was mixed with diethylenetriamine-NO (MTA-NO), and the extracts from MTA and the MTA-NO mixture before and after setting was obtained were investigated the antimicrobial activity against Enterococcus faecalis and Porphyromonas endodontalis. After setting MTA and MTA-NO, pulp cell was incubated in the presence of MTA and MTA-NO disk using Transwell® cell culture insert, and the proliferation assay and mineralization-stimulated factors of the cells were analyzed by MTT assay and real-time RT-PCR, respectively. The physical properties of MTA and the MTA-NO mixture, such as surface hardness and flowability was also analyzed. Results The MTA-NO mixture showed stronger antimicrobial activity against E. faecalis and P. endodontalis than that by MTA. Both MTA and MTA-NO mixture increase the ratio of cell proliferation and induced the expression of alkaline phosphatase, collagen type I, osteocalcin, and osteopontin. Moreover, the induction of gene expression by MTA-NO mixture was higher than that by MTA alone. No significant difference was observed for surface hardness and flowability between MTA and MTA-NO mixture. Conclusion The addition of a NO-releasing compound to the endodontic treatment using MTA root canal sealer might reduce the risk of bacterial infection and help to regenerate the dental pulp tissue.
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Affiliation(s)
- Joo-Hee Shin
- Department of Dentistry, Korea University Guro Hospital, Seoul, Republic of Korea
| | - Jae Jun Ryu
- Department of Dentistry, Korea University Anam Hospital, Seoul, Republic of Korea
| | - Sung-Hoon Lee
- Department of Oral Microbiology and Immunology, College of Dentistry, Dankook University, Cheonan, Republic of Korea
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Jamali Zavare F, Nojehdehian H, Moezizadeh M, Daneshpooy M. Chemical modification of MTA and CEM cement to decrease setting time and improve bioactivity properties by adding alkaline salts. J Dent Res Dent Clin Dent Prospects 2020; 14:1-11. [PMID: 32454952 PMCID: PMC7235698 DOI: 10.34172/joddd.2020.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Background. Mineral trioxide aggregate (MTA) and Calcium-enriched Mixture (CEM) cement are used for pulp capping since they induce the formation of a dentinal bridge. Long setting time is a shortcoming of these types of cement. This study aimed to assess the effect of the incorporation of some alkaline salts to MTA and CEM cement on their setting time, ion release profile, pH, and surface morphology.
Methods. In this in vitro experimental study, 5% calcium chloride (CaCl2), calcium oxide (CaO), sodium fluoride (NaF), and calcium nitrate [Ca(NO3)2] were separately added to MTA and CEM cement. The primary and final setting times of the cements were measured using a Gillmore needle apparatus. The samples were immersed in simulated body fluid (SBF) for one, seven, and 14 days and subjected to x-ray diffraction (XRD) and scanning electron microscopy (SEM) for phase identification and surface morphology assessment. The change in the pH of solutions was studied, and the calcium ion release profile was determined using inductively coupled plasma atomic emission spectroscopy (ICP-AES). The data were analyzed with ANOVA, followed by post hoc tests.
Results. CaCl2 and CaO decreased the setting time of MTA, and Ca(NO3)2 decreased the setting time of CEM cement. The incorporation of the salts increased the pH and calcium ion release from both cements, and hydroxyapatite deposits were noted to cover the surface of the samples (observed by SEM and confirmed by EDXA).
Conclusion. The incorporation of CaCl2 and CaO into MTA and Ca(NO3)2 into CEM cement decreased their setting time and increased their pH and calcium ion release.
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Affiliation(s)
- Faeze Jamali Zavare
- Department of Operative Dentistry, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Irainin Center for Endodontic Research, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hanieh Nojehdehian
- Irainin Center for Endodontic Research, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Dental Biomaterials, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Moezizadeh
- Department of Operative Dentistry, Dental School, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mehdi Daneshpooy
- Department of Restorative Dentistry, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
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Abaszadeh M, Mohammadi M, Mohammadzadeh I. Biocompatibility of a New Antibacterial Compound and its Effect on the Mechanical Properties of Flowable Dental Composites (Animal Study). JOURNAL OF DENTISTRY (SHIRAZ, IRAN) 2020; 21:56-62. [PMID: 32158785 PMCID: PMC7036352 DOI: 10.30476/dentjods.2019.77826.0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Revised: 05/21/2019] [Accepted: 06/24/2019] [Indexed: 11/30/2022]
Abstract
STATEMENT OF THE PROBLEM Recently, new compound of 3, 5-dimethyl-1-thiocarboxamide pyrazole has been composed with excellent antibacterial property. Biocompatibility and its effects on mechanical properties of dental composites should be considered before clinical use. PURPOSE The purpose of this study was to evaluate the biocompatibility of 3, 5-dimethyl-1-thiocarboxamide pyrazole as a new antibacterial compound and its effect on the mechanical properties of dental composites. MATERIALS AND METHOD In this experimental study, a new antibacterial compound was synthesis by reaction between Thiosemicarbazide and 2, 4-Pentandione and tested on thirty male albino Wistar rats weighting 200-250gr. Rats were randomly divided into 3 groups of 10, each rat received 3 implants of 3,5-dimethyl-1-thiocarboxamide pyrazole, penicillin v and empty polyethylene tube. A pathologist, who was unaware of types of tested materials and timing, performed the examination of specimens. The depth of cure and flexural strength of resin composite was measured using Iso4049 standard technique. Compressive strength was determined according to Iso9917 standard. RESULTS This compound was biocompatible and there was no significant difference in flexural strength and compressive strength of the composites containing 1% of this compound with the control group (p> 0.05). CONCLUSION The 3, 5-dimethyl-1-thiocarboxamide pyrazole with a concentration of 1% in flowable composites can be very effective in preventing secondary caries.
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Affiliation(s)
- Mehdi Abaszadeh
- Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Meisam Mohammadi
- Dept. of Mechanical Engineering, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran
| | - Iman Mohammadzadeh
- Oral and Dental Disease Research Center, Kerman University of Medical Sciences, Kerman, Iran
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Shin JH, Lee DY, Lee SH. Comparison of antimicrobial activity of traditional and new developed root sealers against pathogens related root canal. J Dent Sci 2018; 13:54-59. [PMID: 30895095 PMCID: PMC6388800 DOI: 10.1016/j.jds.2017.10.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 10/24/2017] [Indexed: 11/30/2022] Open
Abstract
Background/purpose Bacterial infection is closely associated with the failure of endodontic treatment, and use of endodontic sealer with antimicrobial activity and biological compatibility is necessary for the success of root canal treatment. The purpose of this study was to investigate and to compare the antibacterial effect of two calcium silicate-based root canal sealers (Endoseal and EndoSequence BC sealer) as recent development sealers and with three conventional root canal sealers (AH Plus, Sealapex, and Tubli-Seal), before or after setting, on Porphyromonas endodontalis, Porphyromonas gingivalis, and Enterococcus faecalis. Materials and methods The sealers were soaked in phosphate buffered saline to elute its compositions after and before setting, and the elutes were performed the antimicrobial assay. Also, X-ray fluorescence analysis was carried out to compare compositions of two calcium silicate-based sealers. Results The conventional root canal sealers have strong antibacterial activity against the Gram-negative bacteria, P. endodontalis and P. gingivalis. Endoseal sealer showed antibacterial activity against not only the Gram-negative bacteria, but also against the Gram-positive bacteria, E. faecalis. However, Endosequence BC sealer exhibited a weak antibacterial effect on all bacteria in this study. X-ray fluorescence analysis exhibited that Endoseal contained more types and more amount of the oxide compound known to have strong antimicrobial activity such as Al2O3, Fe2O3, MgO, Na2O, NiO, and SO2 than Endoseqeunce BC. Conclusion Endoseal, which contains various types of oxide compounds, seems to be a suitable sealer for preventing bacterial infection in both treated and untreated root canals.
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Affiliation(s)
- Joo-Hee Shin
- Department of Conservative Dentistry, Korea University Medical Center Guro Hospital, Republic of Korea
| | - Dong-Yul Lee
- Department of Orthodontics, Korea University Medical Center Guro Hospital, Seoul, Republic of Korea
| | - Sung-Hoon Lee
- Department of Oral Microbiology and Immunology, College of Dentistry, Dankook University, Cheonan, Republic of Korea
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MESQUITA JANAINAA, LACERDA-SANTOS ROGÉRIO, SAMPAIO GÊISAA, GODOY GUSTAVOP, NONAKA CASSIANOF, ALVES POLLIANNAM. Evaluation in vivo of biocompatibility of differents resin-modified cements for bonding orthodontic bands. ACTA ACUST UNITED AC 2017; 89:2433-2443. [DOI: 10.1590/0001-3765201720170329] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 06/23/2017] [Indexed: 11/22/2022]
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Almeida Mesquita J, Lacerda-Santos R, Pina Godoy G, Franscisco Weege Nonaka C, Muniz Alves P. Morphological and immunohistochemical analysis of the biocompatibility of resin-modified cements. Microsc Res Tech 2016; 80:504-510. [DOI: 10.1002/jemt.22822] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 11/15/2016] [Accepted: 11/28/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Janaina Almeida Mesquita
- Department of Oral Pathology; Dental School State University of Paraíba-UEPB; Rua Baraunas, 351, Bodocongo Campina Grande Paraíba 58429-500 Brazil
| | - Rogério Lacerda-Santos
- Department of Orthodontics and Pediatric Dentistry; Dental School, Federal University of Juiz de Fora - UFJF; Av. Doutor Raimundo Monteiro Rezende, 330, Centro Governador Valadares Minas Gerais 35010-177 Brazil
| | - Gustavo Pina Godoy
- Department of Oral Pathology; Dental School State University of Paraíba-UEPB; Rua Baraunas, 351, Bodocongo Campina Grande Paraíba 58429-500 Brazil
| | - Cassiano Franscisco Weege Nonaka
- Department of Oral Pathology; Dental School State University of Paraíba-UEPB; Rua Baraunas, 351, Bodocongo Campina Grande Paraíba 58429-500 Brazil
| | - Pollianna Muniz Alves
- Department of Oral Pathology; Dental School State University of Paraíba-UEPB; Rua Baraunas, 351, Bodocongo Campina Grande Paraíba 58429-500 Brazil
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Silva SRD, Silva Neto JDD, Schnaider TB, Veiga DF, Novo NF, Mesquita Filho M, Ferreira LM. The use of a biocompatible cement in endodontic surgery. A randomized clinical trial 1. Acta Cir Bras 2016; 31:422-7. [DOI: 10.1590/s0102-865020160060000010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 05/18/2016] [Indexed: 11/22/2022] Open
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Kramer PR, Woodmansey KF, White R, Primus CM, Opperman LA. Capping a pulpotomy with calcium aluminosilicate cement: comparison to mineral trioxide aggregates. J Endod 2014; 40:1429-34. [PMID: 25146026 DOI: 10.1016/j.joen.2014.02.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Revised: 01/06/2014] [Accepted: 02/02/2014] [Indexed: 10/25/2022]
Abstract
INTRODUCTION Calcium aluminate cements have shown little affinity for bacterial growth, low toxicity, and immunogenicity when used as a restoration material, but calcium aluminate cements have not been tested in vivo in pulpotomy procedures. METHODS To address this question, a calcium aluminosilicate cement (Quick-Set) was tested along with 2 mineral trioxide aggregates, ProRoot MTA and MTA Plus. These cements were used as a capping agent after pulpotomy. Control rats had no pulpotomy, or the pulpotomy was not capped. Proinflammatory cytokines interleukin (IL)-1β and IL-1α were measured, and histology was performed at 30 and 60 days after capping. The nociceptive response was determined by measuring the lengthening of the rat's meal duration. RESULTS and CONCLUSIONS IL-1β and IL-1α concentrations were reduced in the capped teeth, but no differences were observed among the 3 cements. Dentinal bridging could be detected at both 30 and 60 days with each of the 3 cements, and the pulps were still vital 60 days after capping. Meal duration significantly shortened after placement of the 3 different cements, indicating a nociceptive response, but there were no differences among the materials. Calcium aluminosilicate cement had similar properties to mineral trioxide aggregates and is a viable option for pulpotomy procedures.
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Affiliation(s)
- Phillip R Kramer
- Department of Biomedical Sciences, Texas A and M Baylor College of Dentistry, Dallas, Texas.
| | - Karl F Woodmansey
- Department of Endodontics, Department of Biomedical Sciences, Texas A and M Baylor College of Dentistry, Dallas, Texas
| | - Robert White
- Department of Endodontics, Department of Biomedical Sciences, Texas A and M Baylor College of Dentistry, Dallas, Texas
| | | | - Lynne A Opperman
- Department of Biomedical Sciences, Texas A and M Baylor College of Dentistry, Dallas, Texas
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Maxim LD, Niebo R, Utell MJ, McConnell EE, LaRosa S, Segrave AM. Wollastonite toxicity: an update. Inhal Toxicol 2014; 26:95-112. [DOI: 10.3109/08958378.2013.857372] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Cardoso M, Marques RF, Lopes MF, Cabrita AS, Santos JM. In vivo biocompatibility of Resilon compared with gutta-percha in a pre-clinical model. Dent Res J (Isfahan) 2013; 10:652-8. [PMID: 24348625 PMCID: PMC3858742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
BACKGROUND The aim of this study was to investigate in vivo biocompatibility of Resilon, compared with gutta-percha, at short and long-term following implantation in a rat subcutaneous implantation model. MATERIALS AND METHODS Male Wistar rats were implanted subcutaneously with either Resilon or gutta-percha or were sham controls. Tissues were harvested at 8 days or 60 days after implantation and were evaluated histologically for inflammation and fibrous encapsulation. The severity of histologic injury, scored on a scale of 0-4 and quantitative analysis of the capsule wall thickness were determined for statistical analysis. Data were analyzed by Student t-test, one-way analysis of variance, Kruskal-Wallis or Mann-Whitney's tests as appropriate. A value of P ≤ 0.05 was considered statistically significant. RESULTS No behavioral changes or visible signs of physical impairment were observed at 8 days or 60 days post-implantation. Histopathologic observation of the implanted sites at each time-point showed that both Resilon and gutta-percha implants induced foreign body reaction, showing minimal to mild inflammatory reactions in most cases, which diminished significantly with time. Compared with gutta-percha, the capsule wall was thinner (P < 0.05) after Resilon implantation at day 8 and significantly (P = 0.01) thicker at day 60. In addition, capsule wall thickness showed a trend to increase with time after implantation in the Resilon groups (P < 0.05), opposed to the significant decrease (P = 0.016) observed after implantation in the gutta-percha groups, suggesting lesser long-term biocompatibility of Resilon. CONCLUSION Our findings validate Resilon as an in vivo biocompatible material. However, our data suggest that long-term biocompatibility of Resilon, despite validated, is inferior to that of gutta-percha control.
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Affiliation(s)
- Miguel Cardoso
- Department of Experimental Pathology, Faculty of Medicine of the University of Coimbra, Rua Larga, 3004-504, Portugal,Address for correspondence: Dr. Miguel Cardoso, Centro Médico de Tondela, Rua Comandante João de Matos Ferreira, no 88, 3460-549 Tondela, Portugal. E-mail:
| | - Rodrigo F Marques
- Department of Experimental Pathology, Faculty of Medicine of the University of Coimbra, Rua Larga, 3004-504, Portugal
| | - Maria Francelina Lopes
- Department of Experimental Surgery, Faculty of Medicine of the University of Coimbra, Rua Larga, 3004-504, Portugal
| | - António S Cabrita
- Department of Experimental Pathology, Faculty of Medicine of the University of Coimbra, Rua Larga, 3004-504, Portugal
| | - João Miguel Santos
- Department of Dental Medicine, Stomatology and Maxillofacial Surgery, Faculty of Medicine of the University of Coimbra, Av. Bissaya Barreto, 3030-005, Coimbra, Portugal
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Bidar M, Disfani R, Asgary S, Forghani M, Gharagozlo S, Rouhani A. Effect of calcium hydroxide premedication on the marginal adaptation of calcium-enriched mixture cement apical plug. Dent Res J (Isfahan) 2012; 9:706-9. [PMID: 23559945 PMCID: PMC3612217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND This study was to evaluate the effects of calcium hydroxide premedication on the marginal adaptation of the calcium-enriched mixture (CEM) cement as an apical plug. MATERIALS AND METHODS In this in vitro study, forty single rooted teeth were prepared and apical portion of the roots were immersed in sulfuric acid to produce open apices. The teeth were divided into 2 experimental groups. In medicated group, calcium hydroxide was placed in all canals for 1 week and in non-medicated group no dressing was used. Then, a 4-mm apical plug of CEM cement was placed in canals; each root was prepared for observation using scanning electron microscope and the maximum distance between CEM cement and surrounding dentin was measured. The data were analyzed by t-test, and significance level was set at α = 0.05. RESULTS The mean width of gap in medicated and non-medicated groups was 158/1 μm and 147/1 μm, respectively. There was no significant difference between the two groups (P > 0.05). CONCLUSION Calcium hydroxide premedication had no adverse effect on the marginal adaptation of CEM cement apical plug.
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Affiliation(s)
- Maryam Bidar
- Dental Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Reza Disfani
- Department of Endodontics, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Saeed Asgary
- Iranian Center for Endodontic Research, Shahid Beheshti University M.C., Tehran, Iran
| | - Maryam Forghani
- Dental Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Salman Gharagozlo
- Department of Endodontics, School of Dentistry, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Armita Rouhani
- Dental Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran,Address for correspondence: Dr. Armita Rouhani, Dental Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran. E-mail:
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