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Kharkova LY, Korolenkova MV. [The use of mineral trioxide aggregate for treatment of children with complications of dental trauma]. STOMATOLOGIIA 2024; 103:59-66. [PMID: 39171345 DOI: 10.17116/stomat202410304159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
THE AIM Jf the study was to assess the efficacy of mineral trioxide aggregate for treatment of children with complicated permanent teeth trauma. MATERIAL AND METHODS The study comprised 29 children aged 6-13 years (mean age 8.6±1.7 years) with 36 injured constant teeth, from which 30 had immature roots, 27 (75%) teeth had necrotic pulp at baseline examination, 12 (33.3%) teeth showed radiological signs of external imflammatory root resorbtion, 2 teeth were diagnosed with of the root fracture (5.6%). MTA was used for pulp regeneration procedure in 25 (69.5%) teeth, external closure of resorbtion site in 3 (8.3%) teeth, root canal filling in 4 (11.1%) teeth, apical plug creation in 4 teeth (11.1%). The patients were folowed up for 1 to 9 years. RESULTS From 36 teeth only one was extracted 9 years after regenerative endodontic procedure because of cervical root fracture. In 2 teeth with external imflammatory resorbtion progession of replacement resorption took place, in 1 tooth necrosis of regenerated pulp tissue occurred 2 years after the procedure because of restoration marginal seal failure. In 25 teeth favorable outcome was registered with stabilisation of external root resorbtion, continous root growth in 24 teeth and radioluscent lesions healing in 6 teeht showing them at baseline examination. Change of external imflammator root resorbtion to replacement resorption was detected in 1 teeth from 3 with external closure of resorbtion site. Root calan filling with MTA was performed in 3 avulsed teeth with replantation delayed for more than 1 day and in 1 tooth with root fracture. All teeth were clinically asymptomatic during more than 5 years follow-up. Favorable outcome was received in all cases of apicl plug formation. CONCLUSION MTA is highly effective for preservation of constant teeth in children with clinically complicated situations. In many cases with hopeless long-term prognosis for a teeth MTA allows stabilization of dental tissue level with the teeth being an object for guided tissue regeneration.
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Affiliation(s)
- L Yu Kharkova
- Central Research Institute of Dentistry and Maxillofacial Surgery, Moscow, Russia
| | - M V Korolenkova
- Central Research Institute of Dentistry and Maxillofacial Surgery, Moscow, Russia
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Abu Hasna A, Theodoro AL, Pereira LM, Ramos LDP, Campos TMB, Ala Rachi M, Al-Nahalwi T, de Oliveira LD, Carvalho CAT. Antimicrobial Action, Genotoxicity, and Morphological Analysis of Three Calcium Silicate-Based Cements. BIOMED RESEARCH INTERNATIONAL 2022; 2022:2155226. [PMID: 35592523 PMCID: PMC9113872 DOI: 10.1155/2022/2155226] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/08/2022] [Accepted: 04/19/2022] [Indexed: 12/31/2022]
Abstract
This study is aimed at evaluating five mineral oxides (5MO), mineral trioxide aggregate repair high plasticity (MTA HP), and mineral trioxide aggregate (MTA) in relation to the antimicrobial action over Porphyromonas gingivalis, Porphyromonas endodontalis, Parvimonas micra, Fusobacterium nucleatum, and Prevotella intermedia; the genotoxicity over mouse macrophage (RAW 264.7) and osteoblast (Mg-63) cultures; and the morphological analysis using scanning electron microscopy (SEM) analysis (50 k and ×100 k). Sodium hypochlorite (NaOCl), calcium hydroxide, and saline solution were used as control groups in the different analysis. All data were submitted to a normality test and then analyzed with one-way ANOVA, Tukey, and Kruskal-Wallis and Dunn tests, considering α ≤ 0.05 significance level. It was found that over P. gingivalis and P. endodontalis, there was no a significant difference between the calcium silicate-based cements (CSC) and the control group of saline solution, and only 5MO was similar to the NaOCl group. However, over P. micra, all groups were effective and showed a statistically significant difference compared to the saline solution group. Conversely, none of the groups were effective over F. nucleatum and P. intermedia, except of the NaOCl group. There was a significant difference between 5MO and MTA groups in comparison with NaOCl and MTA HP over osteoblasts and macrophages after 24 hours. SEM images showed small irregular particles interspersed with some elongated needle-like particles and small irregular particles with some larger particles as well as elongated particles. It was concluded that 5MO, MTA, and MTA HP have effective antimicrobial action over P. micra. However, only 5MO is effective over P. gingivalis and P. endodontalis. Besides, 5MO and MTA are not genotoxic over mouse macrophage (RAW 264.7) and osteoblast (Mg-63) cultures.
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Affiliation(s)
- Amjad Abu Hasna
- Department of Restorative Dentistry, Endodontics Division, Institute of Science and Technology, São Paulo State University-UNESP, São José dos Campos, São Paulo, Brazil
| | - Ana Luisa Theodoro
- Department of Restorative Dentistry, Endodontics Division, Institute of Science and Technology, São Paulo State University-UNESP, São José dos Campos, São Paulo, Brazil
| | - Larissa Marques Pereira
- Department of Restorative Dentistry, Endodontics Division, Institute of Science and Technology, São Paulo State University-UNESP, São José dos Campos, São Paulo, Brazil
| | - Lucas de Paula Ramos
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, São Paulo State University-UNESP, São José dos Campos, São Paulo, Brazil
| | | | - Maisour Ala Rachi
- Department of Operative Dentistry, Syrian Private University (S.P.U), Damascus, Syria
| | - Talal Al-Nahalwi
- Department of Operative Dentistry, Syrian Private University (S.P.U), Damascus, Syria
| | - Luciane Dias de Oliveira
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, São Paulo State University-UNESP, São José dos Campos, São Paulo, Brazil
| | - Cláudio Antonio Talge Carvalho
- Department of Restorative Dentistry, Endodontics Division, Institute of Science and Technology, São Paulo State University-UNESP, São José dos Campos, São Paulo, Brazil
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Portland Cement: An Overview as a Root Repair Material. BIOMED RESEARCH INTERNATIONAL 2022; 2022:3314912. [PMID: 35036431 PMCID: PMC8758263 DOI: 10.1155/2022/3314912] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Accepted: 12/08/2021] [Indexed: 01/08/2023]
Abstract
Portland cement (PC) is used in challenging endodontic situations in which preserving the health and functionality of pulp tissue is of considerable importance. PC forms the main component of mineral trioxide aggregate (MTA) and demonstrates similar desirable properties as an orthograde or retrograde filling material. PC is able to protect pulp against bacterial infiltration, induce reparative dentinogenesis, and form dentin bridge during the pulp healing process. The biocompatibility, bioactivity, and physical properties of PC have been investigated in vitro and in animal models, as well as in some limited clinical trials. This paper reviews Portland cement's structure and its characteristics and reaction in various environments and eventually accentuates the present concerns with this material. This bioactive endodontic cement has shown promising success rates compared to MTA; however, considerable modifications are required in order to improve its characteristics and expand its application scope as a root repair material. Hence, the extensive chemical modifications incorporated into PC composition to facilitate preparation and handling procedures are discussed. It is still important to further address the applicability, reliability, and cost-effectiveness of PC before transferring into day-to-day clinical practice.
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Sales LS, Santos ADD, Cosme-Silva L, Queiroz IODA, Martins CM, Dal-Fabbro R, Moraes JCS, Cintra LTA, Bertoz APDM, Gomes Filho JE. Influence of the Vehicle on the Tissue Reaction and Biomineralization of Fast Endodontic Cement. PESQUISA BRASILEIRA EM ODONTOPEDIATRIA E CLÍNICA INTEGRADA 2021. [DOI: 10.1590/pboci.2021.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Dos Santos Costa FM, Fernandes MH, Batistuzzo de Medeiros SR. Genotoxicity of root canal sealers: a literature review. Clin Oral Investig 2020; 24:3347-3362. [PMID: 32767107 DOI: 10.1007/s00784-020-03478-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 07/27/2020] [Indexed: 12/20/2022]
Abstract
OBJECTIVES Root canal sealers are widely used worldwide in endodontics to prevent reinfection and growth of surviving microorganisms. Considering the strong correlation between genetic damage and carcinogenesis, evaluation of genotoxicity induced by endodontic sealers is recommended for elucidating the true health risks to patients and professionals. The purpose of this article was to provide a comprehensive review of studies involving genotoxicity analysis of endodontic sealers and the used methodologies. MATERIALS AND METHODS A literature search was made in PubMed using the following combination of words "genotoxicity," "mutagenicity," "endodontic sealers," and "root canal sealers." A total of 39 articles with genotoxicity studies were selected for the present study. RESULTS Sealers have been ranked in decreasing order of their genotoxicity as: ZOE sealers > GIC sealers > S sealers > ER sealers > MR sealers > Novel sealers > CH sealers > CS sealers. CONCLUSIONS All published data showed some evidence of genotoxicity for most of the commercial root canal sealers; however, contradictory results were found, mainly for AH Plus, the most studied sealer. CLINICAL RELEVANCE The information provided would direct the endodontists to use the less genotoxic materials in endodontic treatment in a way to reduce DNA damage promoting oral healthcare.
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Affiliation(s)
- Fábio Miguel Dos Santos Costa
- Department of Cell Biology and Genetics, Biosciences Center, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Maria Helena Fernandes
- Faculty of Dental Medicine, U. Porto, Porto, Portugal
- LAQV/REQUIMTE, U. Porto, Porto, Portugal
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Fakheran O, Birang R, Schmidlin PR, Razavi SM, Behfarnia P. Retro MTA and tricalcium phosphate/retro MTA for guided tissue regeneration of periodontal dehiscence defects in a dog model: a pilot study. Biomater Res 2019; 23:14. [PMID: 31485337 PMCID: PMC6712858 DOI: 10.1186/s40824-019-0163-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 08/19/2019] [Indexed: 01/07/2023] Open
Abstract
Objectives Retro MTA is a fast setting Calcium silicate cement used in endodontic regeneration procedures in recent years. Beta-tricalcium phosphate (β-TCP) is another common biomaterial used for bone augmentation procedures. The present pilot study was undertaken to evaluate and compare the efficacy of Retro MTA and a mixture of Retro MTA / β-TCP for periodontal tissue regeneration. Materials and methods In 4 beagle dogs, periodontal dehiscence type defects were created. In each side, one dehiscence defect was left empty as a control site and three treatment modalities were randomly applied for the others: Retro MTA covered with a collagen membrane, Retro MTA + β-TCP covered with a membrane and covering the defect with a membrane without any bone augmentation. After 8 weeks Animals were sacrificed and Histomorphometric and histologic analysis were conducted. Results Histologic analysis showed more cementum formation for both Retro MTA+ β-TCP (3.74 ± 0.34 mm) and Retro MTA group (3.24 ± 0.56 mm) compared to control group 1 (1. 15 ± 0.45 mm) and control group 2 (0.78 ± 0.65 mm). Formation of newly formed bone and cementum in the experimental groups were significantly higher as compared to the control groups (P < 0.0001). Conclusions Retro MTA or Retro MTA+ β-TCP covered with a collagen membrane resulted in regeneration of periodontal tissues. However, Retro MTA+ β-TCP showed tendency towards better results than the use of Retro MTA alone.
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Affiliation(s)
- Omid Fakheran
- 1Department of Periodontics and Dental Research Center, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Reza Birang
- 1Department of Periodontics and Dental Research Center, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Patrick R Schmidlin
- 2Clinic of Conservative and Preventive Dentistry, Centre of Dental and Oral Medicine, University of Zurich, Plattenstrasse 11, 8032 Zurich, Switzerland
| | - Sayed Mohammad Razavi
- 3Dental Implant Research Center and Department of Oral and Maxillofacial Pathology, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Parichehr Behfarnia
- 1Department of Periodontics and Dental Research Center, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
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Qutieshat AS, Al-Hiyasat AS, Darmani H. Biocompatibility evaluation of Jordanian Portland cement for potential future dental application. J Conserv Dent 2019; 22:249-254. [PMID: 31367108 PMCID: PMC6632633 DOI: 10.4103/jcd.jcd_552_18] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background The demand for novel Portland cement (PC)-based formulations to be used in dental applications is ever increasing in viewing the foregoing knowledge on the favorable effects of these formulations on cellular proliferation and healing, leading to treatment success. Aim This study investigated the effect of white and gray mineral trioxide aggregate (W-MTA and G-MTA) and white and gray Jordanian PC (W-PC and G-PC) in their raw state on the viability of Balb/C 3T3 fibroblasts using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Materials and Methods Materials were prepared in the form of disks, with a diameter of 5 mm and a thickness of 2 mm. In the first experiment, Balb/C 3T3 fibroblasts were cultured with the material disks using culture plate inserts. In the second experiment, material elutes were added to cultured cells. The elutes were prepared by adding 2 ml serum-free media to 10 disks of each material and then incubated at 37°C for different time intervals. Material elutes were analyzed using ion chromatography for traces of calcium. The data were analyzed using analysis of variance followed by Dunnett test (α = 0.05) or Tukey test (α = 0.05). Results In response to material disks, G-PC had a proliferative effect on cells at day 1 and day 2 with a significant difference from the control at day 1. G-MTA reduced cell viability with a significant difference from the control level at day 2. Elutes of PC showed biocompatible and even proliferative effects on Balb/C 3T3 fibroblasts. Calcium ions were found to leach continuously over the measurement period for all the materials tested in this work. Conclusion Jordanian PC in its raw state was found to be biocompatible, and the results of this work give promise of its wider use as a base for further development to improve the physiochemical and mechanical properties of the material.
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Affiliation(s)
- Abubaker S Qutieshat
- Department of Conservative Dentistry, Faculty of Dentistry, Jordan University of Science and Technology, Irbid, Jordan
| | - Ahmad S Al-Hiyasat
- Department of Conservative Dentistry, Faculty of Dentistry, Jordan University of Science and Technology, Irbid, Jordan
| | - Homa Darmani
- Department of Applied Biological Sciences, Faculty of Science and Arts, Jordan University of Science and Technology, Irbid, Jordan
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Ha WN, Nicholson T, Kahler B, Walsh LJ. Mineral Trioxide Aggregate-A Review of Properties and Testing Methodologies. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E1261. [PMID: 29099082 PMCID: PMC5706208 DOI: 10.3390/ma10111261] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 10/23/2017] [Accepted: 10/24/2017] [Indexed: 11/16/2022]
Abstract
Mineral trioxide aggregate (MTA) restoratives and MTA sealers are commonly used in endodontics. Commonly referenced standards for testing of MTA are ISO 6876, 9917-1 and 10993. A PubMed search was performed relating to the relevant tests within each ISO and "mineral trioxide aggregate". MTA restoratives are typically tested with a mixture of tests from multiple standards. As the setting of MTA is dependent upon hydration, the results of various MTA restoratives and sealers are dependent upon the curing methodology. This includes physical properties after mixing, physical properties after setting and biocompatibility. The tests of flow, film thickness, working time and setting time can be superseded by rheology as it details how MTA hydrates. Physical property tests should replicate physiological conditions, i.e. 37 °C and submerged in physiological solution. Biocompatibility tests should involve immediate placement of samples immediately after mixing rather than being cured prior to placement as this does not replicate clinical usage. Biocompatibility tests should seek to replicate physiological conditions with MTA tested immediately after mixing.
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Affiliation(s)
- William N Ha
- School of Dentistry, University of Queensland, Herston, Brisbane 4004, Australia.
| | - Timothy Nicholson
- School of Chemical Engineering, University of Queensland, St. Lucia, Brisbane 4067, Australia.
| | - Bill Kahler
- School of Dentistry, University of Queensland, Herston, Brisbane 4004, Australia.
| | - Laurence J Walsh
- School of Dentistry, University of Queensland, Herston, Brisbane 4004, Australia.
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Martinho FC, Camargo SEA, Fernandes AMM, Campos MS, Prado RF, Camargo CHR, Valera MC. Comparison of cytotoxicity, genotoxicity and immunological inflammatory biomarker activity of several endodontic sealers against immortalized human pulp cells. Int Endod J 2017; 51:41-57. [DOI: 10.1111/iej.12785] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 04/20/2017] [Indexed: 01/08/2023]
Affiliation(s)
- F. C. Martinho
- Department of Restorative Dentistry Endodontic Division São José dos Campos Dental School Paulista State University (UNESP) São José dos Campos, São Paulo Brazil
| | - S. E. A. Camargo
- Department of Bioscience and Oral Diagnosis Biochemistry Division São José dos Campos Dental School Paulista State University (UNESP) São José dos Campos, São Paulo Brazil
| | - A. M. M. Fernandes
- Department of Restorative Dentistry Endodontic Division São José dos Campos Dental School Paulista State University (UNESP) São José dos Campos, São Paulo Brazil
| | - M. S. Campos
- Department of Oral Pathology Radiology & Medicine College of Dentistry University of Iowa Iowa City IA USA
| | - R. F. Prado
- Department of Restorative Dentistry Endodontic Division São José dos Campos Dental School Paulista State University (UNESP) São José dos Campos, São Paulo Brazil
| | - C. H. R. Camargo
- Department of Restorative Dentistry Endodontic Division São José dos Campos Dental School Paulista State University (UNESP) São José dos Campos, São Paulo Brazil
| | - M. C. Valera
- Department of Restorative Dentistry Endodontic Division São José dos Campos Dental School Paulista State University (UNESP) São José dos Campos, São Paulo Brazil
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Biological evaluation of a new pulp capping material developed from Portland cement. ACTA ACUST UNITED AC 2016; 69:115-122. [PMID: 27986375 DOI: 10.1016/j.etp.2016.12.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 11/27/2016] [Accepted: 12/09/2016] [Indexed: 02/05/2023]
Abstract
This study evaluates the biological properties of a new pulp capping material developed from Portland cement. This study was conducted on 48 teeth in 4 dogs (12 teeth/dog). The dogs were classified into two equal groups (n=24 teeth) according to the evaluation period including: group A (3 weeks) and group B (3 months). Each group was further subdivided into three equal subgroups (n=8 teeth) according to the capping material including: subgroup 1: mineral trioxide aggregate (MTA), subgroup2: Portland cement+10% calcium hydroxide+20% bismuth oxide (Port Cal) and subgroup 3: Portland cement+bismuth oxide. After general anesthesia, a class V buccal cavity was prepared coronal to the gingival margin. After pulp exposure and hemostasis,the capping materials and glass ionomer filling were placed on the exposure sites. All histopathological findings, inflammatory cell count and dentin bridge formation were recorded. Data were analyzed statistically. After 3 months, the histopathological picture of the pulp in subgroup 1 showed normal pulp, continuous odontoblastic layer and complete dentin bridge formation while subgroup 2 showed partial and complete dentin bridge over a normal and necrotic pulps. Subgroup 3 showed loss of normal architecture, areas of necrosis, complete, or incomplete dentin bridge formation, attached and detached pulp stones and fatty degeneration in group B. For group A, MTA subgroup showed the least number of inflammatory cell infiltrate followed by Port Cal subgroup. While subgroup 3 showed the highest number of inflammatory cell infiltrate. For group B, the mean inflammatory cell count increased with the three tested materials with no statistical difference. Regarding dentin bridge formation at group A, no significant differences was found between subgroups, while at group B, MTA subgroup exhibited significantly higher scores than other subgroups. In conclusion, addition of calcium hydroxide to Portland cement improves the dentin bridge formation qualitatively and quantitatively.
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11
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Effect of an Experimental Direct Pulp-capping Material on the Properties and Osteogenic Differentiation of Human Dental Pulp Stem Cells. Sci Rep 2016; 6:34713. [PMID: 27698421 PMCID: PMC5048176 DOI: 10.1038/srep34713] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 09/19/2016] [Indexed: 12/29/2022] Open
Abstract
Effective pulp-capping materials must have antibacterial properties and induce dentin bridge formation; however, many current materials do not satisfy clinical requirements. Accordingly, the effects of an experiment pulp-capping material (Exp) composed of an antibacterial resin monomer (MAE-DB) and Portland cement (PC) on the viability, adhesion, migration, and differentiation of human dental pulp stem cells (hDPSCs) were examined. Based on a Cell Counting Kit-8 assay, hDPSCs exposed to Exp extracts showed limited viability at 24 and 48 h, but displayed comparable viability to the control at 72 h. hDPSC treatment with Exp extracts enhanced cellular adhesion and migration according to in vitro scratch wound healing and Transwell migration assays. Exp significantly upregulated the expression of osteogenesis-related genes. The hDPSCs cultured with Exp exhibited higher ALP activity and calcium deposition in vitro compared with the control group. The novel material showed comparable cytocompatibility to control cells and promoted the adhesion, migration, and osteogenic differentiation of hDPSCs, indicating excellent biocompatibility. This new direct pulp-capping material containing MAE-DB and PC shows promise as a potential alternative to conventional materials for direct pulp capping.
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Cervantes B, López-Huerta F, Vega R, Hernández-Torres J, García-González L, Salceda E, Herrera-May AL, Soto E. Cytotoxicity Evaluation of Anatase and Rutile TiO₂ Thin Films on CHO-K1 Cells in Vitro. MATERIALS 2016; 9:ma9080619. [PMID: 28773740 PMCID: PMC5509025 DOI: 10.3390/ma9080619] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 07/11/2016] [Accepted: 07/12/2016] [Indexed: 01/10/2023]
Abstract
Cytotoxicity of titanium dioxide (TiO2) thin films on Chinese hamster ovary (CHO-K1) cells was evaluated after 24, 48 and 72 h of culture. The TiO2 thin films were deposited using direct current magnetron sputtering. These films were post-deposition annealed at different temperatures (300, 500 and 800 °C) toward the anatase to rutile phase transformation. The root-mean-square (RMS) surface roughness of TiO2 films went from 2.8 to 8.08 nm when the annealing temperature was increased from 300 to 800 °C. Field emission scanning electron microscopy (FESEM) results showed that the TiO2 films’ thickness values fell within the nanometer range (290–310 nm). Based on the results of the tetrazolium dye and trypan blue assays, we found that TiO2 thin films showed no cytotoxicity after the aforementioned culture times at which cell viability was greater than 98%. Independently of the annealing temperature of the TiO2 thin films, the number of CHO-K1 cells on the control substrate and on all TiO2 thin films was greater after 48 or 72 h than it was after 24 h; the highest cell survival rate was observed in TiO2 films annealed at 800 °C. These results indicate that TiO2 thin films do not affect mitochondrial function and proliferation of CHO-K1 cells, and back up the use of TiO2 thin films in biomedical science.
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Affiliation(s)
- Blanca Cervantes
- Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla, 14 sur 6301, Col. San Manuel, 72570 Puebla, Mexico.
- Instituto de Investigaciones Biomédicas "Alberto Sols", Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid, Arturo Duperier, 4, 28029 Madrid, Spain.
| | - Francisco López-Huerta
- Facultad de Ingeniería, Universidad Veracruzana, Calzada Ruiz Cortines 455, Boca del Río, 94294 Veracruz, Mexico.
| | - Rosario Vega
- Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla, 14 sur 6301, Col. San Manuel, 72570 Puebla, Mexico.
| | - Julián Hernández-Torres
- Centro de Investigación en Micro y Nanotecnología, Calzada Ruiz Cortines 455, Boca del Río, 94294 Veracruz, Mexico.
| | - Leandro García-González
- Centro de Investigación en Micro y Nanotecnología, Calzada Ruiz Cortines 455, Boca del Río, 94294 Veracruz, Mexico.
| | - Emilio Salceda
- Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla, 14 sur 6301, Col. San Manuel, 72570 Puebla, Mexico.
| | - Agustín L Herrera-May
- Centro de Investigación en Micro y Nanotecnología, Calzada Ruiz Cortines 455, Boca del Río, 94294 Veracruz, Mexico.
| | - Enrique Soto
- Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla, 14 sur 6301, Col. San Manuel, 72570 Puebla, Mexico.
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Mangala MG, Chandra SMS, Bhavle RM. To evaluate the biocompatibility of the Indian Portland cement with potential for use in dentistry: An animal study. J Conserv Dent 2016; 18:440-4. [PMID: 26752835 PMCID: PMC4693314 DOI: 10.4103/0972-0707.168800] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Aims: This study evaluated the biocompatibility of the Indian Portland cement with potential for use in dentistry. Materials and Methods: This study was performed in Swiss albino mice, by implanting the Indian Portland cement pellets subcutaneously. After 1, 3, and 6 weeks the tissue specimens were prepared for histological examination. Results: The histological analysis showed moderate to severe inflammation at 1 week. The inflammation gradually decreased by 6 weeks, with most of the specimens showing the absence of inflammatory reaction. Conclusions: According to these experimental conditions, the tested Indian Portland cement was biocompatible.
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Affiliation(s)
- M G Mangala
- Department of Conservative Dentistry and Endodontics, KLE Society's Institute of Dental Sciences and Hospital, Bengaluru, Karnataka, India
| | - S M Sharath Chandra
- Department of Conservative Dentistry and Endodontics, Krishnadevaraya College of Dental Sciences and Hospital, Bengaluru, Karnataka, India
| | - Radhika M Bhavle
- Department of Oral Pathology, Krishnadevaraya College of Dental Sciences and Hospital, Bengaluru, Karnataka, India
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Eldeniz AU, Shehata M, Högg C, Reichl FX. DNA double-strand breaks caused by new and contemporary endodontic sealers. Int Endod J 2015; 49:1141-1151. [DOI: 10.1111/iej.12577] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 11/06/2015] [Indexed: 11/29/2022]
Affiliation(s)
- A. U. Eldeniz
- Department of Endodontics; Selcuk University; Konya Turkey
| | - M. Shehata
- Department of Operative/Restorative Dentistry, Periodontology and Pedodontics; Ludwig-Maximilians-University of Munich; Munich Germany
- Walther-Straub-Institute of Pharmacology and Toxicology; Ludwig-Maximilians-University of Munich; Munich Germany
| | - C. Högg
- Department of Operative/Restorative Dentistry, Periodontology and Pedodontics; Ludwig-Maximilians-University of Munich; Munich Germany
- Walther-Straub-Institute of Pharmacology and Toxicology; Ludwig-Maximilians-University of Munich; Munich Germany
| | - F. X. Reichl
- Department of Operative/Restorative Dentistry, Periodontology and Pedodontics; Ludwig-Maximilians-University of Munich; Munich Germany
- Walther-Straub-Institute of Pharmacology and Toxicology; Ludwig-Maximilians-University of Munich; Munich Germany
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15
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Clinical and radiographic evaluation of Portland cement added to radiopacifying agents in primary molar pulpotomies. Eur Arch Paediatr Dent 2015; 16:377-82. [PMID: 25788172 DOI: 10.1007/s40368-015-0177-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 02/06/2015] [Indexed: 10/23/2022]
Abstract
AIM This was to evaluate the clinical and radiographic outcomes of Portland cement (PC) added to radiopacifying agents in primary molar pulpotomies. METHODS Thirty primary mandibular molars of children aged between 5 and 9 years were randomly assigned to the following groups: PC; PC with iodoform (PC + CHI(3)); PC with zirconium oxide (PC + ZrO(2)) and treated by pulpotomy technique. Clinical and radiographic follow-up assessments were performed at 6, 12 and 24 months. Statistical analysis was performed by Fisher's exact test (P < 0.05). RESULTS The clinical and radiographic evaluations showed 100 % success rates, and the results showed no statistically significant difference between groups. CONCLUSIONS According to this study, PC added to radiopacifying agents exhibited satisfactory clinical and radiographic results in primary molar pulpotomies.
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16
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Pugnaloni A, Lucarini G, Rubini C, Smorlesi A, Tomasetti M, Strafella E, Armeni T, Gualtieri AF. Raw and thermally treated cement asbestos exerts different cytotoxicity effects on A549 cells in vitro. Acta Histochem 2015; 117:29-39. [PMID: 25466987 DOI: 10.1016/j.acthis.2014.10.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 10/07/2014] [Accepted: 10/23/2014] [Indexed: 02/07/2023]
Abstract
Raw cement asbestos (RCA) undergoes a complete solid state transformation when heated at high temperatures. The secondary raw material produced, high temperatures-cement asbestos (HT-CA) is composed of newly-formed crystals in place of the asbestos fibers present in RCA. Our previous study showed that HT-CA exerts lower cytotoxic cell damage compared to RCA. Nevertheless further investigations are needed to deepen our understanding of pathogenic pathways involving oxidative and nitrative damage. Our aim is to deepen the understanding of the biological effects on A549 cells of these materials regarding DNA damage related proteins (p53, its isoform p73 and TRAIL) and nitric oxide (NO) production during inducible nitric oxide synthase (iNOS)-mediated inflammation. Increments of p53/p73 expression, iNOS positive cells and NO concentrations were found with RCA, compared to HT-CA and controls mainly at 48 h. Interestingly, ferrous iron causing reactive oxygen species (ROS)-mediated DNA damage was found in RCA as a contaminant. HT-CA thermal treatment induces a global recrystallization with iron in a crystal form poorly released in media. HT-CA slightly interferes with genome expression and exerts lower inflammatory potential compared to RCA on biological systems. It could represent a safe approach for storing or recycling asbestos and an environmentally friendly alternative to asbestos waste.
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17
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Marciano MA, Garcia RB, Cavenago BC, Minotti PG, Midena RZ, Guimarães BM, Ordinola-Zapata R, Duarte MAH. Influence of bismuth oxide concentration on the pH level and biocompatibility of white Portland cement. J Appl Oral Sci 2014; 22:268-73. [PMID: 25141197 PMCID: PMC4126821 DOI: 10.1590/1678-775720130059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2013] [Accepted: 02/28/2014] [Indexed: 11/26/2022] Open
Abstract
Objectives To investigate if there is a relation between the increase of bismuth oxide and
the decrease of pH levels and an intensification of toxicity in the Portland
cement. Material and Methods White Portland cement (WPC) was mixed with 0, 15, 20, 30 and 50% bismuth oxide, in
weight. For the pH level test, polyethylene tubes were filled with the cements and
immersed in Milli-Q water for 15, 30 and 60 days. After each period, the increase
of the pH level was assessed. For the biocompatibility, two polyethylene tubes
filled with the cements were implanted in ninety albino rats (n=6). The analysis
of the intensity of the inflammatory infiltrate was performed after 15, 30 and 60
days. The statistical analysis was performed using the Kruskal-Wallis, Dunn and
Friedman tests for the pH level and the Kruskal-Wallis and Dunn tests for the
biological analysis (p<0.05). Results The results showed an increase of the pH level after 15 days, followed by a slight
increase after 30 days and a decrease after 60 days. There were no significant
statistical differences among the groups (p>0.05). For the inflammatory
infiltrates, no significant statistical differences were found among the groups in
each period (p>0.05). The 15% WPC showed a significant decrease of the
inflammatory infiltrate from 15 to 30 and 60 days (p<0.05). Conclusions The addition of bismuth oxide into Portland cement did not affect the pH level
and the biological response. The concentration of 15% of bismuth oxide resulted in
significant reduction in inflammatory response in comparison with the other
concentrations evaluated.
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18
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Lourenço Neto N, C. T. Marques N, Paula Fernandes A, Rodini CO, A. H. Duarte M, C. Lima M, A. A. M. Machado M, C. C. Abdo R, M. Oliveira T. Biocompatibility of Portland cement combined with different radiopacifying agents. J Oral Sci 2014; 56:29-34. [DOI: 10.2334/josnusd.56.29] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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19
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Linhares GDS, Cenci MS, Knabach CB, Oliz CM, Vieira MA, Ribeiro AS, Zanchi CH, Jacinto RC. Evaluation of pH and Calcium Ion Release of a Dual-cure Bisphenol A Ethoxylate Dimethacrylate/Mineral Trioxide Aggregate–based Root-end Filling Material. J Endod 2013; 39:1603-6. [DOI: 10.1016/j.joen.2013.08.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Revised: 08/13/2013] [Accepted: 08/14/2013] [Indexed: 11/24/2022]
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20
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Akbari M, Zebarjad SM, Nategh B, Rouhani A. Effect of Nano Silica on Setting Time and Physical Properties of Mineral Trioxide Aggregate. J Endod 2013; 39:1448-51. [DOI: 10.1016/j.joen.2013.06.035] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 05/18/2013] [Accepted: 06/29/2013] [Indexed: 11/16/2022]
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21
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Profeta A, Mannocci F, Foxton R, Watson T, Feitosa V, De Carlo B, Mongiorgi R, Valdré G, Sauro S. Experimental etch-and-rinse adhesives doped with bioactive calcium silicate-based micro-fillers to generate therapeutic resin–dentin interfaces. Dent Mater 2013; 29:729-41. [DOI: 10.1016/j.dental.2013.04.001] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Revised: 03/17/2013] [Accepted: 04/04/2013] [Indexed: 01/31/2023]
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22
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Khalil WA, Eid NF. Biocompatibility of BioAggregate and mineral trioxide aggregate on the liver and kidney. Int Endod J 2013; 46:730-7. [DOI: 10.1111/iej.12050] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2012] [Accepted: 12/12/2012] [Indexed: 11/30/2022]
Affiliation(s)
- W. A. Khalil
- Department of Conservative Dentistry; Faculty of Dentistry; King Abdulaziz University; Jeddah; Saudi Arabia
| | - N. F. Eid
- Zoology Department; Faculty of Science; Al-Azhar University and University; Cairo; Egypt
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23
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Ong RM, Luddin N, Ahmed HMA, Omar NS. Cytotoxicity of accelerated white MTA and Malaysian white Portland cement on stem cells from human exfoliated deciduous teeth (SHED): An in vitro study. ACTA ACUST UNITED AC 2012; 33:19-23. [PMID: 23739319 DOI: 10.1016/j.sdj.2012.11.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The aim of this study was to compare the cytotoxicity of accelerated-set white MTA (AWMTA) and accelerated-set Malaysian white PC (AMWPC) on stem cells from human exfoliated deciduous teeth (SHED). The test materials were introduced into paraffin wax moulds after mixing with calcium chloride dihydrate and sterile distilled water. Subsequently, the set cement specimens were sterilized, incubated in a prepared Dulbecco's modified Eagle medium (DMEM) for seven days. The biomarker CD166 was used for characterization of SHED using flow cytometry. The material extracts were diluted at five different concentrations and incubated for 72h with SHED. The cell viability was evaluated using Dimethylthiazol diphenyltetrazolium bromide (MTT) assay, and the data was analysed using Mann-Whitney test (P<0.05). The results showed that AWMTA revealed significantly greater cell viability at 25 and 12.5mg/ml concentrations (P<0.05). Concomitantly, AMWPC exhibited greater cell viability at concentrations <12.5mg/ml and the results were significant at 1.563mg/ml (P<0.05). Both materials demonstrated moderate cytotoxicity at 25mg/ml and slight cytotoxicity at 6.25 and 3.125mg/ml. At 1.563mg/ml, no cytotoxic activity was merely observed with AMWPC. In conclusion, AMWPC exhibited favourable and comparable cell viability to that of AWMTA, and has the potential to be used as an alternative and less costly material in dental applications.
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Affiliation(s)
- Ren Ming Ong
- School of Dental Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia
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24
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Mallineni SK, Nuvvula S, Matinlinna JP, Yiu CK, King NM. Biocompatibility of various dental materials in contemporary dentistry: a narrative insight. ACTA ACUST UNITED AC 2012; 4:9-19. [PMID: 23255468 DOI: 10.1111/j.2041-1626.2012.00140.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Accepted: 03/08/2012] [Indexed: 11/27/2022]
Abstract
In the past few decades, there has been an increase in demand for safety evaluation and control of dental materials used daily in dentistry; however, this task is difficult and cumbersome. Dental materials that are passive and do not react with the oral environment will be more stable and have superior durability. It is expected that dental materials will be universally accepted and will not cause harm or injury to the surrounding structures in the oral cavity. This is an entirely negative approach to the material tolerance and biocompatibility, and hides the possibility that some positive gains can be achieved. Side-effects of dental materials are believed to be rare, and generally, those that have been reported are mild. There are wide varieties of materials used in dentistry, which include liners, irrigants, intracanal filling materials, intracanal medicaments, prosthetic materials, restorative materials, subgingival implants, and mouth rinses. Therefore, in this study, the biocompatibility of various commonly-used clinical materials used in contemporary dentistry was discussed.
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Affiliation(s)
- Sreekanth K Mallineni
- Department of Paediatric Dentistry, Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong.
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25
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Lee BN, Son HJ, Noh HJ, Koh JT, Chang HS, Hwang IN, Hwang YC, Oh WM. Cytotoxicity of Newly Developed Ortho MTA Root-end Filling Materials. J Endod 2012; 38:1627-30. [DOI: 10.1016/j.joen.2012.09.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2012] [Revised: 09/03/2012] [Accepted: 09/10/2012] [Indexed: 11/26/2022]
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26
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Opačić-Galić V, Petrović V, Živković S, Jokanović V, Nikolić B, Knežević-Vukčević J, Mitić-Ćulafić D. New nanostructural biomaterials based on active silicate systems and hydroxyapatite: characterization and genotoxicity in human peripheral blood lymphocytes. Int Endod J 2012; 46:506-16. [DOI: 10.1111/iej.12017] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2012] [Accepted: 09/20/2012] [Indexed: 10/27/2022]
Affiliation(s)
- V. Opačić-Galić
- Department for Restorative Dentistry and Endodontics; School of Dental Medicine; University of Belgrade, Belgrade; Serbia
| | - V. Petrović
- Department for Restorative Dentistry and Endodontics; School of Dental Medicine; University of Belgrade, Belgrade; Serbia
| | - S. Živković
- Department for Restorative Dentistry and Endodontics; School of Dental Medicine; University of Belgrade, Belgrade; Serbia
| | - V. Jokanović
- Institute for Nuclear Sciences Vinča; Belgrade, University of Belgrade, Belgrade; Serbia
| | - B. Nikolić
- Department for Microbiology; Faculty of Biology; University of Belgrade; Belgrade; Serbia
| | - J. Knežević-Vukčević
- Department for Microbiology; Faculty of Biology; University of Belgrade; Belgrade; Serbia
| | - D. Mitić-Ćulafić
- Department for Microbiology; Faculty of Biology; University of Belgrade; Belgrade; Serbia
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27
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Aminozarbian MG, Barati M, Salehi I, Mousavi SB. Biocompatibility of mineral trioxide aggregate and three new endodontic cements: An animal study. Dent Res J (Isfahan) 2012; 9:54-9. [PMID: 22363364 PMCID: PMC3283979 DOI: 10.4103/1735-3327.92944] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Background: Introducing new endodontic cements should await comprehensive investigations and new formulations have to be tested in vivo before applying in human beings. So, the purpose of this study was to compare the biocompatibility of new endodontic cements, calcium aluminate α-aluminate cement (CAAC), calcium aluminate α-aluminate plus cement (CAAC plus), and a mixture of wollastonite and CAAC cement (WOLCA) and mineral trioxide aggregate (MTA), in subcutaneous connective tissue of rats. Materials and Methods: Twenty-seven Wistar rats were divided into three groups of 7, 14, and 30 experimental days. Sterile polyethylene tubes were filled with MTA, CAAC, CAAC Plus, and WOLCA cement and implanted subcutaneously. Empty tubes were implanted as negative control. After the experimental periods, animals were sacrificed by anesthetic overdosing. The occurrence of inflammatory responses was scored according to the previously established scores. Data were statistically analyzed using Friedman, Wilcoxon, Kruskal-Wallis, and Mann-Whitney tests. The level of significance was 5% (P<0.05). Results: There was a statistically significant difference between experimental and negative control sites in each group (P<0.05). CAAC Plus showed the highest mean scores of inflammation, compared with MTA, CAAC, and WOLCA cement sits at the end of all periods (P<0.05). There were no statistically significant differences between inflammatory scores of each site in different experimental groups, except CAAC plus sites, in which inflammation increased significantly with time (P<0.05). Conclusion: According to the results of the current study, biocompatibility of CAAC and WOLCA cement were comparable with that of MTA, but CAAC Plus induced an inflammatory response higher than MTA, therefore is not biocompatible.
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Affiliation(s)
- Mohammad-Ghasem Aminozarbian
- Department of Endodontics and Torabinejad Dental Research Center, School of dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
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28
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Sadhasivam S, Chen JC, Savitha S, Hsu MX, Hsu CK, Lin CP, Lin FH. Synthesis of partial stabilized cement-gypsum as new dental retrograde filling material. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012; 32:1859-1867. [PMID: 34062667 DOI: 10.1016/j.msec.2012.05.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Revised: 02/01/2012] [Accepted: 05/04/2012] [Indexed: 10/28/2022]
Abstract
The study describes the sol-gel synthesis of a new dental retrograde filling material partial stabilized cement (PSC)-gypsum by adding different weight percentage of gypsum (25% PSC+75% gypsum, 50% PSC+50% gypsum and 75% PSC+25% gypsum) to the PSC. The crystalline phase and hydration products of PSC-gypsum were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) analysis. The handling properties such as setting time, viscosity, tensile strength, porosity and pH, were also studied. The XRD and microstructure analysis demonstrated the formation of hydroxyapatite and removal of calcium dihydrate during its immersion in simulated body fluid (SBF) on day 10 for 75% PSC+25% gypsum. The developed PSC-gypsum not only improved the setting time but also greatly reduced the viscosity, which is very essential for endodontic surgery. The cytotoxic and cell proliferation studies indicated that the synthesized material is highly biocompatible. The increased alkaline pH of the PSC-gypsum also had a remarkable antibacterial activity.
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Affiliation(s)
- S Sadhasivam
- Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan; Division of Medical Engineering Research, National Health Research Institute, Zhunan, Miaoli County, Taiwan
| | - Jung-Chih Chen
- Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan; Medical Device Innovation Center, National Cheng Kung University, Tainan,Taiwan
| | - S Savitha
- Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan
| | - Ming-Xiang Hsu
- Institute of Materials Science and Engineering, National Taipei University of Technology, Taipei, Taiwan
| | - Chung-King Hsu
- Institute of Materials Science and Engineering, National Taipei University of Technology, Taipei, Taiwan
| | - Chun-Pin Lin
- School of Dentistry and Graduate Institute of Clinical Dentistry, College of Medicine, National Taiwan University and National Taiwan University Hospital, Taipei, Taiwan
| | - Feng-Huei Lin
- Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan; Division of Medical Engineering Research, National Health Research Institute, Zhunan, Miaoli County, Taiwan.
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29
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Lee SJ, Chung J, Na HS, Park EJ, Jeon HJ, Kim HC. Characteristics of novel root-end filling material using epoxy resin and Portland cement. Clin Oral Investig 2012; 17:1009-15. [PMID: 22777392 DOI: 10.1007/s00784-012-0782-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2012] [Accepted: 06/21/2012] [Indexed: 11/28/2022]
Abstract
OBJECTIVES The aim of this study was to evaluate the physical properties and cytotoxicity of a novel root-end filling material (EPC) which is made from epoxy resin and Portland cement as a mineral trioxide aggregate (MTA) substitute. MATERIALS AND METHODS EPC, developed as a root-end filling material, was compared with MTA and a mixture of AH Plus sealer and MTA (AMTA) with regard to the setting time, radio-opacity, and microleakage. Setting times were evaluated using Vicat apparatus. Digital radiographs were taken to evaluate the aluminium equivalent radio-opacity using an aluminium step wedge. Extracted single-rooted teeth were used for leakage test using methylene blue dye. After canal shaping and obturation, the apical 3-mm root was resected, and a root-end cavity with a depth of 3 mm was prepared. The root-end cavities were filled with MTA, AMTA, and EPC for 15 specimens in each of three groups. After setting in humid conditions for 24 h, the specimens were tested for apical leakage. For evaluation of the biocompatibility of EPC, cell (human gingival fibroblast) viability was compared for MTA and Portland cement by MTT assay, and cell morphological changes were compared for MTA and AH Plus by fluorescence microscopy using DAPI and F-actin staining. The setting time, radio-opacity, and microleakage were compared using one-way ANOVA and Scheffe's post hoc comparison, and the cytotoxicity was compared using the nonparametric Kruskal-Wallis rank sum test. Statistical significance was set at 95%. RESULTS EPC had a shorter setting time and less microleakage compared with MTA (p < 0.05). EPC showed 5-mm aluminium thickness radio-opacity and similar biocompatibility to MTA. CONCLUSIONS Under the conditions of this study, EPC, a novel composite made from a mixture of epoxy resin and Portland cement, was found to be a useful material for root-end filling, with favourable radio-opacity, short setting time, low microleakage, and clinically acceptable low cytotoxicity. CLINICAL RELEVANCE The novel root-end filling material would be a potentially useful material for a surgical endodontic procedure with favourable properties.
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Affiliation(s)
- Sang-Jin Lee
- Department of Conservative Dentistry, School of Dentistry, Pusan National University, Beomeo-ri, Mulgeum, Yangsan, Gyeongnam, 626-787, South Korea
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30
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Pereda GO, Fudinaga ACC, Beltrán HS, Peroni LA, Stach-Machado D. Inflammatory and bone regulators expression in murine macrophages under exposure of commercial and experimental mineral trioxide aggregate. Aust Dent J 2012; 57:284-91. [DOI: 10.1111/j.1834-7819.2012.01701.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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31
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Optimization of calcium chloride content on bioactivity and mechanical properties of white Portland cement. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012. [DOI: 10.1016/j.msec.2011.10.030] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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32
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Alpha-TCP improves the apatite-formation ability of calcium-silicate hydraulic cement soaked in phosphate solutions. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2011. [DOI: 10.1016/j.msec.2011.05.012] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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Improvement of the Properties of Mineral Trioxide Aggregate by Mixing with Hydration Accelerators. J Endod 2011; 37:1433-6. [DOI: 10.1016/j.joen.2011.06.013] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2011] [Revised: 06/14/2011] [Accepted: 06/14/2011] [Indexed: 11/22/2022]
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34
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Chen CC, Shie MY, Ding SJ. Human dental pulp cell responses to new calcium silicate-based endodontic materials. Int Endod J 2011; 44:836-42. [DOI: 10.1111/j.1365-2591.2011.01890.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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35
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Taddei P, Modena E, Tinti A, Siboni F, Prati C, Gandolfi MG. Vibrational investigation of calcium-silicate cements for endodontics in simulated body fluids. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2010.12.058] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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36
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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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37
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Setting Time and Flowability of Accelerated Portland Cement Mixed with Polycarboxylate Superplasticizer. J Endod 2011; 37:387-9. [DOI: 10.1016/j.joen.2010.11.039] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2010] [Revised: 11/26/2010] [Accepted: 11/30/2010] [Indexed: 11/21/2022]
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38
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Cytotoxicity of Portland Cement with Different Radiopacifying Agents: A Cell Death Study. J Endod 2011; 37:203-10. [PMID: 21238803 DOI: 10.1016/j.joen.2010.11.017] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2010] [Revised: 11/10/2010] [Accepted: 11/12/2010] [Indexed: 11/20/2022]
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39
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Shahi S, Yavari HR, Rahimi S, Eskandarinezhad M, Shakouei S, Unchi M. Comparison of the sealing ability of mineral trioxide aggregate and Portland cement used as root-end filling materials. J Oral Sci 2011; 53:517-22. [DOI: 10.2334/josnusd.53.517] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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40
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Zeferino EG, Bueno CES, Oyama LM, Ribeiro DA. Ex vivo assessment of genotoxicity and cytotoxicity in murine fibroblasts exposed to white MTA or white Portland cement with 15% bismuth oxide. Int Endod J 2010; 43:843-8. [PMID: 20722754 DOI: 10.1111/j.1365-2591.2010.01747.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIMS To evaluate whether white mineral trioxide aggregate (MTA) or white Portland cement with 15% bismuth oxide were able to induce genetic damage and cellular death ex vivo. METHODOLOGY Aliquots of 1 × 10(4) murine fibroblasts were incubated at 37 °C for 3 h with MTA (white) or white Portland cement with 15% bismuth oxide, at final concentrations ranging from 10 to 1000 μg mL(-1) individually. Data of three independent repeats from the comet assay and the trypan blue exclusion test were assessed by the one-way anova followed by Tukey's test. RESULTS Mineral trioxide aggregate or Portland cement containing bismuth oxide did not produce genotoxic effects with respect to the single-cell gel (comet) assay data for all concentrations evaluated. Furthermore, no cytotoxicity was observed for MTA or Portland cement. CONCLUSION White MTA or white Portland cement containing 15% bismuth oxide were not genotoxic and cytotoxic.
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Affiliation(s)
- E G Zeferino
- Endodontic Area, Center for Dental Research, São Leopoldo Mandic University, Campinas, Brazil
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41
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Gandolfi MG, Prati C. MTA and F-doped MTA cements used as sealers with warm gutta-percha. Long-term study of sealing ability. Int Endod J 2010; 43:889-901. [PMID: 20618878 DOI: 10.1111/j.1365-2591.2010.01763.x] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIM To evaluate the long-term sealing ability (up to 6 months) of two experimental calcium silicate MTA cements used as root canal sealers in association with warm gutta-percha. METHODOLOGY Calcium silicate (MTA) and calcium-fluoro-silicate powders were prepared. Sodium fluoride was included in FMTA (Fluoride-doped Mineral Trioxide Aggregate) as an expansive and retardant agent. Single-rooted teeth were instrumented with NiTi rotary instruments, filled with warm gutta-percha in association with one of the experimental sealers or with AH Plus as a control (n = 20 for each sealer) and stored at 37 °C. Sealing was assessed at 24, 48 h, 1, 2 weeks and 1, 3, 6 months by a fluid filtration method. Scanning electron microscopy with energy dispersive analysis (SEM/EDX) was used to study the dentine/sealer interface of roots stored for 6 months and the surface of cement disks stored for 24 h. RESULTS All sealers revealed a statistically significant reduction (P < 0.05) in fluid filtration after the first 2 weeks. No statistically significant differences were observed between FMTA and AH Plus at all analysis times. At short times (24, 48-h), no statistically significant differences were found between the experimental cements and AH Plus. At long-term evaluations (1, 3, 6 months), FMTA and AH Plus sealed significantly better (P < 0.05) than MTA. FMTA was associated with lower fluid filtration rates, and the seal was stable from 48 h to 6 months, thus proving the most effective material. Scanning electron microscopy with energy dispersive analysis of root sections filled with calcium silicate sealers revealed the formation of a blend layer of gutta-percha and cement consequent to the warm gutta-percha condensation technique. Scanning electron microscopy with energy dispersive analysis of 24-h-stored disks identified a Ca-rich coating on the outer surface consisting of globular particles (calcium hydroxide and calcium carbonate), and a deeper internal Ca- and Si-rich region consisting of needle-like ettringite crystals and round formations of calcium silicate hydrate gel. CONCLUSION Fluoride-doped MTA demonstrated stable sealing during a period of up to 6 months and significantly better than conventional calcium silicate MTA cements and comparable to AH Plus. The study supports the suitability of calcium silicate MTA cements as sealers in association with warm gutta-percha for root filling.
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Affiliation(s)
- M G Gandolfi
- Laboratory of Biomaterials and Oral Pathology of Endodontic Clinical Section, Department of Odontostomatological Sciences, University of Bologna, Bologna, Italy.
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Chang SW, Shon WJ, Lee W, Kum KY, Baek SH, Bae KS. Analysis of heavy metal contents in gray and white MTA and 2 kinds of Portland cement: a preliminary study. ACTA ACUST UNITED AC 2010; 109:642-6. [DOI: 10.1016/j.tripleo.2009.12.017] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2009] [Revised: 12/02/2009] [Accepted: 12/09/2009] [Indexed: 11/24/2022]
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Lee SJ, Cho OI, Yum J, Park JK, Hur B, Kim HC. Physical properties of novel composite using Portland cement for retro-filling material. ACTA ACUST UNITED AC 2010. [DOI: 10.5395/jkacd.2010.35.6.445] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sang-Jin Lee
- Department of Conservative Dentistry, Pusan National University School of Dentistry, Yangsan, Korea
| | - Ok-In Cho
- Department of Conservative Dentistry, Pusan National University School of Dentistry, Yangsan, Korea
| | - Jiwan Yum
- Department of Conservative Dentistry, Pusan National University School of Dentistry, Yangsan, Korea
| | - Jeong-Kil Park
- Department of Conservative Dentistry, Pusan National University School of Dentistry, Yangsan, Korea
| | - Bock Hur
- Department of Conservative Dentistry, Pusan National University School of Dentistry, Yangsan, Korea
| | - Hyeon-Cheol Kim
- Department of Conservative Dentistry, Pusan National University School of Dentistry, Yangsan, Korea
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Tu MG, Liang WM, Wu TC, Chen SY. Evaluation of cytotoxicity of resin bonding materials toward human oral epithelial cells using three assay systems. J Dent Sci 2009. [DOI: 10.1016/s1991-7902(09)60024-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Kinetics of apatite formation on a calcium-silicate cement for root-end filling during ageing in physiological-like phosphate solutions. Clin Oral Investig 2009; 14:659-68. [DOI: 10.1007/s00784-009-0356-3] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2009] [Accepted: 11/10/2009] [Indexed: 10/20/2022]
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46
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Sima LE, Filimon A, Piticescu RM, Chitanu GC, Suflet DM, Miroiu M, Socol G, Mihailescu IN, Neamtu J, Negroiu G. Specific biofunctional performances of the hydroxyapatite-sodium maleate copolymer hybrid coating nanostructures evaluated by in vitro studies. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2009; 20:2305-2316. [PMID: 19543854 DOI: 10.1007/s10856-009-3800-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2008] [Accepted: 06/04/2009] [Indexed: 05/27/2023]
Abstract
The nanohybrid structures consisting of hydroxyapatite (HA) and sodium maleate-vinyl acetate copolymer (MP) deposited by Matrix Assisted Pulsed Laser Evaporation (MAPLE) technique on Ti surfaces were investigated for specific biological qualities required in bone implantology. The data from in vitro studies demonstrated that human primary osteoblasts (OBs) firmly adhered to Ti coated with HA-MP as indicated by cytoskeleton and vinculin dynamics. OBs spread onto biomaterial surface and formed groups of cells which during their biosynthetic activity expressed OB phenotype specific markers (collagen and non-collagenous proteins) and underwent controlled proliferation.
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Affiliation(s)
- L E Sima
- Institute of Biochemistry, Romanian Academy, Splaiul Independentei 296, Bucharest 060031, Romania
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Mente J, Hage N, Pfefferle T, Koch MJ, Dreyhaupt J, Staehle HJ, Friedman S. Mineral Trioxide Aggregate Apical Plugs in Teeth with Open Apical Foramina: A Retrospective Analysis of Treatment Outcome. J Endod 2009; 35:1354-8. [DOI: 10.1016/j.joen.2009.05.025] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2009] [Revised: 05/20/2009] [Accepted: 05/24/2009] [Indexed: 10/20/2022]
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Chen CC, Ho CC, David Chen CH, Ding SJ. Physicochemical Properties of Calcium Silicate Cements for Endodontic Treatment. J Endod 2009; 35:1288-91. [DOI: 10.1016/j.joen.2009.05.036] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2009] [Revised: 05/25/2009] [Accepted: 05/28/2009] [Indexed: 10/20/2022]
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Aspects of thein vitrobioactivity of hydraulic calcium (alumino)silicate cement. J Biomed Mater Res A 2009; 90:166-74. [DOI: 10.1002/jbm.a.32070] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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50
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Radiopacity of Portland Cement Associated With Different Radiopacifying Agents. J Endod 2009; 35:737-40. [DOI: 10.1016/j.joen.2009.02.006] [Citation(s) in RCA: 130] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2009] [Revised: 02/04/2009] [Accepted: 02/17/2009] [Indexed: 11/19/2022]
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