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Al–Saudi KW. A paradigm shift from calcium hydroxide to bioceramics in direct pulp capping: A narrative review. JOURNAL OF CONSERVATIVE DENTISTRY AND ENDODONTICS 2024; 27:2-10. [PMID: 38389743 PMCID: PMC10880475 DOI: 10.4103/jcd.jcd_241_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 06/10/2023] [Accepted: 07/13/2023] [Indexed: 02/24/2024]
Abstract
For many years, calcium hydroxide (CH) was the preferred material for direct pulp capping (DPC), occupying an elevated position. The collapse of this paradigm is due to the emergence of bioceramics with less pulpal inflammation and superior mineralization abilities than CH. The goal of the current article was directed to: (1) review the history of DPC "the idea of an exposed pulp as a hopeless organ has given way to one of healing and optimism," (2) classify the bioceramics in dentistry, and (3) explain and compare the mechanism by which dentin barriers for CH and bioceramics are formed. A comprehensive literature search of the database was conducted using PubMed, Google Scholar, and Scopus utilizing the following terms: Biodentine, calcium hydroxide, calcium aluminate, calcium phosphate, calcium silicate, direct pulp capping, NeoMTA Plus, Quick-Set2, and TotalFill. Reference mining of the selected publications was utilized to discover other studies and strengthen the results. Only works written in English were taken into consideration, and there were no restrictions on the year of publication. Bioceramic materials might be used as an intriguing substitute for CH. Compared to CH, they induced more positive pulpal reactions.
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Affiliation(s)
- Khaled Wagih Al–Saudi
- Department of Conservative Dentistry, Faculty of Oral and Dental Medicine, Nahda University, Beni Suef, Egypt
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2
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Duncan HF, Kobayashi Y, Kearney M, Shimizu E. Epigenetic therapeutics in dental pulp treatment: Hopes, challenges and concerns for the development of next-generation biomaterials. Bioact Mater 2023; 27:574-593. [PMID: 37213443 PMCID: PMC10199232 DOI: 10.1016/j.bioactmat.2023.04.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/11/2023] [Accepted: 04/11/2023] [Indexed: 05/23/2023] Open
Abstract
This opinion-led review paper highlights the need for novel translational research in vital-pulp-treatment (VPT), but also discusses the challenges in translating evidence to clinics. Traditional dentistry is expensive, invasive and relies on an outmoded mechanical understanding of dental disease, rather than employing a biological perspective that harnesses cell activity and the regenerative-capacity. Recent research has focussed on developing minimally-invasive biologically-based 'fillings' that preserve the dental pulp; research that is shifting the paradigm from expensive high-technology dentistry, with high failure rates, to smart restorations targeted at biological processes. Current VPTs promote repair by recruiting odontoblast-like cells in a material-dependent process. Therefore, exciting opportunities exist for development of next-generation biomaterials targeted at regenerative processes in the dentin-pulp complex. This article analyses recent research using pharmacological-inhibitors to therapeutically-target histone-deacetylase (HDAC) enzymes in dental-pulp-cells (DPCs) that stimulate pro-regenerative effects with limited loss of viability. Consequently, HDAC-inhibitors have the potential to enhance biomaterial-driven tissue responses at low concentration by influencing the cellular processes with minimal side-effects, providing an opportunity to develop a topically-placed, inexpensive bio-inductive pulp-capping material. Despite positive results, clinical translation of these innovations requires enterprise to counteract regulatory obstacles, dental-industry priorities and to develop strong academic/industry partnerships. The aim of this opinion-led review paper is to discuss the potential role of therapeutically-targeting epigenetic modifications as part of a topical VPT strategy in the treatment of the damaged dental pulp, while considering the next steps, material considerations, challenges and future for the clinical development of epigenetic therapeutics or other 'smart' restorations in VPT.
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Affiliation(s)
- Henry F. Duncan
- Division of Restorative Dentistry & Periodontology, Dublin Dental University Hospital, Trinity College Dublin, University of Dublin, Lincoln Place, Dublin, Ireland
| | - Yoshifumi Kobayashi
- Department of Oral Biology, Rutgers School of Dental Medicine, Newark, NJ, USA
| | - Michaela Kearney
- Division of Restorative Dentistry & Periodontology, Dublin Dental University Hospital, Trinity College Dublin, University of Dublin, Lincoln Place, Dublin, Ireland
| | - Emi Shimizu
- Department of Oral Biology, Rutgers School of Dental Medicine, Newark, NJ, USA
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KÜÇÜKKAYA EREN S, BAHADOR ZIRH E, ZIRH S, SHARAFI P, ZEYBEK ND. Combined effects of bone morphogenetic protein-7 and mineral trioxide aggregate on the proliferation, migration, and differentiation of human dental pulp stem cells. J Appl Oral Sci 2022; 30:e20220086. [PMID: 36102412 PMCID: PMC9469872 DOI: 10.1590/1678-7757-2022-0086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 06/21/2022] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Bioactive molecules present the potential to be used along with biomaterials in vital pulp therapy and regenerative endodontic treatment. OBJECTIVE The aim of this study was to assess the effects of the combined use of bone morphogenetic protein-7 (BMP-7) and mineral trioxide aggregate (MTA) on the proliferation, migration, and differentiation of human dental pulp stem cells (DPSCs). METHODOLOGY For the proliferation analysis, DPSCs were incubated with a growth medium and treated with MTA and/or BMP-7 at different concentrations. For the following analyses, DPSCs were incubated with a differentiation medium and treated with MTA and/or BMP-7. Moreover, there were groups in which DPSCs were incubated with the growth medium (control), the differentiation medium, or DMEM/F12 containing fetal bovine serum, and not treated with MTA or BMP-7. Cell proliferation was analyzed using the WST-1 assay. The odontogenic/osteogenic differentiation was evaluated by immunocytochemistry, alkaline phosphatase (ALP) activity assay, alizarin red staining, and reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Cell migration was evaluated using a wound-healing assay. Data were analyzed using analysis of variance and Tukey test (p=0.05). RESULTS The use of BMP-7 with MTA presented no significant effect on cell proliferation in comparison with the treatment with MTA alone (p>0.05), but showed higher ALP activity, increased mineralization, and higher expression of DMP1 and DSPP when compared with other groups (p<0.05). Nestin expression was higher in the control group than in groups treated with MTA and/or BMP-7 (p<0.05). The cell migration rate increased after treatment with MTA when compared with other groups in all periods of time (p<0.05). At 72 hours, the wound area was smaller in groups treated with MTA and/or BMP-7 than in the control group (p<0.05). CONCLUSION The use of BMP-7 with MTA increased odontogenic/osteogenic differentiation without adversely affecting proliferation and migration of DPSCs. The use of BMP-7 with MTA may improve treatment outcomes by increasing repair and regeneration capacity of DPSCs.
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Affiliation(s)
- Selen KÜÇÜKKAYA EREN
- Hacettepe UniversityFaculty of DentistryDepartment of EndodonticsAnkaraTurkeyHacettepe University, Faculty of Dentistry, Department of Endodontics, Ankara, Turkey.
| | - Elham BAHADOR ZIRH
- TOBB University of Economics and TechnologyFaculty of MedicineDepartment of Histology and EmbryologyAnkaraTurkeyTOBB University of Economics and Technology, Faculty of Medicine, Department of Histology and Embryology, Ankara, Turkey.
| | - Selim ZIRH
- Erzincan Binali Yıldırım UniversityFaculty of MedicineDepartment of Histology and EmbryologyErzincanTurkeyErzincan Binali Yıldırım University, Faculty of Medicine, Department of Histology and Embryology, Erzincan, Turkey.
| | - Parisa SHARAFI
- TOBB University of Economics and TechnologyFaculty of MedicineDepartment of Medical Biology and GeneticsAnkaraTurkeyTOBB University of Economics and Technology, Faculty of Medicine, Department of Medical Biology and Genetics, Ankara, Turkey.
| | - Naciye Dilara ZEYBEK
- Hacettepe UniversityFaculty of MedicineDepartment of Histology and EmbryologyAnkaraTurkeyHacettepe University, Faculty of Medicine, Department of Histology and Embryology, Ankara, Turkey.
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Calcium Phosphate Cement Promotes Odontoblastic Differentiation of Dental Pulp Cells In Vitro and In Vivo. COATINGS 2022. [DOI: 10.3390/coatings12040543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In the case of pulp injury, odontoblastic differentiation of dental pulp cells (DPCs) at the site of the exposed pulp is necessary for a successful direct pulp capping treatment. Calcium phosphate cement (CPC), a kind of hydroxyapatite-like bone cement, exhibits therapeutic potential in osteogenesis by regulating cell cycle progression and promoting osteoblastic differentiation. Based on the similar biological process of osteo/odontoblastic differentiation, the present study evaluated the effects of CPC on odontoblastic differentiation of DPCs in vitro and in vivo, respectively. The morphology of CPC was observed by scanning electron microscopy. Colony-forming units were used to assess the antibacterial activity. The effects of CPC on cell proliferation and odontoblastic differentiation of human dental pulp cells (hDPCs) were also measured. Histological staining was performed to observe the reparative dentin formation in rat molars. In vitro, results of antibacterial studies showed that CPC significantly inhibited the growth of Streptococcus mutans. The appropriate concentration of CPC extract showed low cytotoxicity on hDPCs. Furthermore, CPC extract also promoted odontoblastic differentiation and mineralization compared with the control group, as shown by a dynamic increase in the expression of odontogenic marker genes and the increased number of mineralized nodules at 21 days. The pulpotomy models with CPC facilitated the formation of dentin bridge with the highly expressed dentin matrix protein 1 (DMP1) in odontoblast-like cells. In conclusion, the favorable biocompatibility, antibacterial property and bio-inductivity of CPC suggest that CPC can be used as a promising direct pulp capping material.
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Bakir EP, Yildirim ZS, Bakir Ş, Ketani A. Are resin-containing pulp capping materials as reliable as traditional ones in terms of local and systemic biological effects? Dent Mater J 2021; 41:78-86. [PMID: 34483201 DOI: 10.4012/dmj.2021-065] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The aim of this study was to compare the local and systemic effects of current pulp capping materials containing resin with those of traditional materials in an animal study. A total of 48 rats were used: a control group (n=12) (sub-control and negative control), a resin-containing group (n=18) (Calcimol LC, Theracal LC, Activa-BioActive Base/Liner), and a traditional group (n=18) (Biodentine, ProRoot MTA, Dycal). The materials which had been placed in polyethylene tubes were implanted in subcutaneous pockets. The rats were sacrificed at 1, 2, or 4 weeks. Evaluations were made of subcutaneous connective tissue, the left kidney, liver, and blood samples. Of all the study groups, MTA demonstrated biocompatibility at a level close to that of the control groups. Inflammation was observed to be more severe in resin-containing materials, but Activa Base/Liner showed a more successful local and systemic tissue response.
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Affiliation(s)
- Elif Pinar Bakir
- Dicle University, Faculty of Dentistry, Restorative Dentistry Department
| | | | - Şeyhmus Bakir
- Dicle University, Faculty of Dentistry, Restorative Dentistry Department
| | - Aydin Ketani
- Dicle University, Faculty of Veterinary Medicine, Histology and Embryology Department
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Hayashi Y, Kawaki H, Hori M, Shintani K, Hasegawa T, Tanaka M, Kondoh N, Yoshida T, Kawano S, Tamaki Y. Evaluation of the mechanical properties and biocompatibility of gypsum-containing calcium silicate cements. Dent Mater J 2021; 40:863-869. [PMID: 33642445 DOI: 10.4012/dmj.2020-086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Mineral trioxide aggregate (MTA) cement is widely used in the field of endodontic treatment. We herein synthesized calcium silicates from calcium carbonate and silicon dioxide, with the aim of reducing the cost associated with the MTA. Additionally, we prepared gypsum-containing calcium silicate cement to reduce the setting time while enhancing the mechanical strength. We evaluated the physical properties of this cement and investigated the response of human dental pulp stem cells (hDPSCs) grown in culture media containing cement eluate. Our results revealed that calcium silicates could be easily synthesized in lab-scale. Furthermore, we demonstrate that gypsum addition helps shorten the setting time while increasing the compressive strength of dental cements. The synthesized gypsum-containing calcium silicate cement showed minimal cytotoxicity and did not inhibit the proliferation of hDPSCs. These results suggested that the newly developed calcium silicate material could be a promising pulp capping material.
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Affiliation(s)
- Yumiyo Hayashi
- Department of Endodontics, Division of Oral Functional Science and Rehabilitation, Asahi University School of Dentistry
| | - Harumi Kawaki
- Department of Oral Biochemistry, Division of Oral Structure, Function, and Development, Asahi University School of Dentistry
| | - Masaharu Hori
- Department of Endodontics, Division of Oral Functional Science and Rehabilitation, Asahi University School of Dentistry
| | - Kohei Shintani
- Department of Dental Materials Science, Division of Oral Functional Science and Rehabilitation, Asahi University School of Dentistry
| | - Tomoya Hasegawa
- Department of Endodontics, Division of Oral Functional Science and Rehabilitation, Asahi University School of Dentistry
| | - Masashi Tanaka
- Department of Endodontics, Division of Oral Functional Science and Rehabilitation, Asahi University School of Dentistry
| | - Nobuo Kondoh
- Department of Oral Biochemistry, Division of Oral Structure, Function, and Development, Asahi University School of Dentistry
| | - Takakazu Yoshida
- Department of Endodontics, Division of Oral Functional Science and Rehabilitation, Asahi University School of Dentistry
| | - Satoshi Kawano
- Department of Endodontics, Division of Oral Functional Science and Rehabilitation, Asahi University School of Dentistry
| | - Yukimichi Tamaki
- Department of Dental Materials Science, Division of Oral Functional Science and Rehabilitation, Asahi University School of Dentistry
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Kermanshah H, Ranjbar Omrani L, Ghabraei S, Fekrazad R, Daneshparvar N, Bagheri P. Direct Pulp Capping With ProRoot MTA Alone and in Combination With Er:YAG Laser Irradiation: A Clinical Trial. J Lasers Med Sci 2020; 11:S60-S66. [PMID: 33995971 DOI: 10.34172/jlms.2020.s10] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Background: Due to the complications of root canal treatment, conservative modalities to preserve pulp vitality are favorable. Direct pulp capping (DPC) refers to the coverage of the pulp tissue exposed by a biocompatible agent that can improve the prognosis of the tooth by 44% to 95%. Some recent studies have reported more predictable results (a success rate of about 90%) for DPC with laser and regenerative materials such as mineral trioxide aggregate (MTA). This study aimed to clinically compare DPC with ProRoot MTA alone and in combination with Er:YAG (erbium-doped yttrium aluminium garnet) laser irradiation (2940 nm). Methods: This clinical trial was conducted on 26 patients with a mean age of 29 years (in the range of 17 to 46 years) who required DPC following pulp exposure during deep caries removal. The teeth were divided into two groups. In the control group, the teeth underwent DPC with ProRoot MTA while in the test group, the teeth were first irradiated with a 2940 nm Er:YAG laser and then underwent DPC with ProRoot MTA. The patients were recalled at one, 3 and 6 months for the follow-up (clinical and radiographic examinations). The data were analyzed using Fisher exact test. Results: The success rate was 75% in the laser group and 93% in the control group. The groups were not significantly different (P>0.05). Conclusion: No significant difference was found in terms of the success rate of DPC with ProRoot MTA alone and in combination with Er:YAG laser irradiation.
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Affiliation(s)
- Hamid Kermanshah
- Associate Professor, Department of Restorative Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Ladan Ranjbar Omrani
- Associate Professor, Department of Restorative Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Sholeh Ghabraei
- Associate Professor, Department of Endodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Fekrazad
- Radiation Science Research Center, Laser Research Center in Medical Sciences, AJA University of Medical Sciences, Tehran, Iran.,International Network for Photo Medicine and Photo Dynamic Therapy (INPMPDT), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | | | - Parisa Bagheri
- Faculty Member, Department of Endodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
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8
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Babaki D, Yaghoubi S, Matin MM. The effects of mineral trioxide aggregate on osteo/odontogenic potential of mesenchymal stem cells: a comprehensive and systematic literature review. Biomater Investig Dent 2020; 7:175-185. [PMID: 33313519 PMCID: PMC7717865 DOI: 10.1080/26415275.2020.1848432] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 11/07/2020] [Indexed: 12/12/2022] Open
Abstract
The significance of dental materials in dentin-pulp complex tissue engineering is undeniable. The mechanical properties and bioactivity of mineral trioxide aggregate (MTA) make it a promising biomaterial for future stem cell-based endodontic therapies. There are numerous in vitro studies suggesting the low cytotoxicity of MTA towards various types of cells. Moreover, it has been shown that MTA can enhance mesenchymal stem cells' (MSCs) osteo/odontogenic ability. According to the preferred reporting items for systematic reviews and meta-analyses (PRISMA), a literature review was conducted in the Medline, PubMed, and Scopus databases. Among the identified records, the cytotoxicity and osteo/odontoblastic potential of MTA or its extract on stem cells were investigated. Previous studies have discovered the differentiation-inducing potential of MTA on MSCs, providing a background for dentin-pulp complex cell therapies using the MTA, however, animal trials are needed before moving into clinical trials. In conclusion, MTA can be a promising candidate dental biomaterial for futuristic stem cell-based endodontic therapies.
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Affiliation(s)
- Danial Babaki
- Department of Biomedical Engineering, Tagliatela College of Engineering, University of New Haven, West Haven, CT, USA
| | - Sanam Yaghoubi
- Visiting Scholar at Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, USA
| | - Maryam M. Matin
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
- Novel Diagnostics and Therapeutics Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
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9
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Induction of Osteogenic Differentiation of Mesenchymal Stem Cells by Bioceramic Root Repair Material. MATERIALS 2019; 12:ma12142311. [PMID: 31331019 PMCID: PMC6678914 DOI: 10.3390/ma12142311] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Revised: 07/15/2019] [Accepted: 07/17/2019] [Indexed: 02/06/2023]
Abstract
This study aimed to evaluate the osteogenic activity of Endosequence Root Repair Material (ERRM) putty using rat mesenchymal stem cells (MSCs). The extract of set ERRM and ProRoot-mineral trioxide aggregate (MTA) (control) was cocultured with rat MSCs and incubated for one, three, and seven days. The cell viability and proliferation were assessed. A quantitative real-time polymerase chain reaction for bone morphogenetic protein-2 (BMP-2), alkaline phosphatase, bone sialoprotein, and osteocalcin gene expression was performed. Both materials enhanced cell viability and proliferation, which increased over time. On day seven, the cells treated with either material exhibited significantly greater cell viability compared with control untreated cells. MSCs treated with either material showed deeper alkaline phosphatase staining after three days compared to control untreated cells. Treated MSCs also exhibited upregulation of the gene expression of bone morphogenetic protein-2, alkaline phosphatase, bone sialoprotein, and osteocalcin. Both ERRM and ProRoot-MTA enhance the osteogenic differentiation of MSCs.
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10
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Saberi E, Farhad-Mollashahi N, Sargolzaei Aval F, Saberi M. Proliferation, odontogenic/osteogenic differentiation, and cytokine production by human stem cells of the apical papilla induced by biomaterials: a comparative study. Clin Cosmet Investig Dent 2019; 11:181-193. [PMID: 31372059 PMCID: PMC6636314 DOI: 10.2147/ccide.s211893] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 05/24/2019] [Indexed: 12/20/2022] Open
Abstract
Introduction Clinical applications of bioactive materials are increasing in biomedical tissue engineering. This study sought to assess the effect of calcium enriched mixture (CEM) cement, Biodentine, mineral trioxide aggregate (MTA), octacalcium phosphate (OCP), and Atlantik on proliferation, odontogenic/osteogenic differentiation, and pro-inflammatory cytokine production by human stem cells of the apical papilla (SCAPs). Materials and methods Proliferation of SCAPs treated with different biomaterials was evaluated using trypan blue exclusion test and flow cytometry. Differentiation of cells was evaluated using ALP activity, alizarin red staining, and RT-PCR. The expression of genes of pro-inflammatory cytokines was also evaluated using RT-PCR. Results The SCAPs treated with biomaterials showed significantly higher proliferation, increased ALP activity, higher number of calcified nodules, and up-regulation of genes related to odontogenic/osteogenic markers compared to the control group. The expression of pro-inflammatory cytokines increased in all groups compared to the control group. Conclusion The tested biomaterials could induce odontogenic/osteogenic differentiation in SCAPs. MTA had a greater potential for induction of differentiation of SCAPs to odontoblast-like cells while OCP had higher potential to induce differentiation of SCAPs to osteoblast-like cells (MTA↔ BD↔ CEM↔ Atlantik↔ OCP).
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Affiliation(s)
- Eshaghali Saberi
- Oral and Dental Diseases Research Center, Department of Endodontics, Faculty of Dentistry, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Narges Farhad-Mollashahi
- Oral and Dental Diseases Research Center, Department of Endodontics, Faculty of Dentistry, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Fereydoon Sargolzaei Aval
- Cellular and Molecular Research Center, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran.,Department of Anatomical, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
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Trongkij P, Sutimuntanakul S, Lapthanasupkul P, Chaimanakarn C, Wong RH, Banomyong D. Pulpal responses after direct pulp capping with two calcium-silicate cements in a rat model. Dent Mater J 2019; 38:584-590. [PMID: 31105162 DOI: 10.4012/dmj.2018-225] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Bioactivity of Bio-MA, a calcium chloride accerelator-containing calcium-silicate cement, as a pulp capping material was evaluated on mechanically exposed rat molar pulp. Sixty maxillary first molars from Wistar rats were mechanically exposed and assigned to two capping materials: Bio-MA or white mineral trioxide aggregate (WMTA), and three periods: 1, 7, or 30 days. Nine molars were exposed and covered with polytetrafluoroethylene tape, as positive controls. From histological examination, inflammatory cell infiltration and reparative dentin formation were evaluated using grading scores. No significant difference in pulpal responses between the two materials was observed at any period (p>0.05). At 1 day, all experimental groups showed localized mild inflammation. At 7 days, dentin bridge was partially observed at exposure sites with few inflammatory cells. At 30 days, pulp appeared normal with complete tubular dentin bridges. Bio-MA with accerelator was biocompatible similar to WMTA and could be used as a pulp-capping material.
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Affiliation(s)
- Panruethai Trongkij
- Department of Operative Dentistry and Endodontics, Faculty of Dentistry, Mahidol University
| | | | | | - Chitpol Chaimanakarn
- Department of Operative Dentistry and Endodontics, Faculty of Dentistry, Mahidol University
| | - Rebecca H Wong
- Restorative Section, Melbourne Dental School, University of Melbourne
| | - Danuchit Banomyong
- Department of Operative Dentistry and Endodontics, Faculty of Dentistry, Mahidol University
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Biodentine ™ Boosts, WhiteProRoot ®MTA Increases and Life ® Suppresses Odontoblast Activity. MATERIALS 2019; 12:ma12071184. [PMID: 30978943 PMCID: PMC6479701 DOI: 10.3390/ma12071184] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 04/06/2019] [Accepted: 04/09/2019] [Indexed: 12/12/2022]
Abstract
(1) Background: When pulp exposure occurs, reparative dentinogenesis can be induced by direct pulp capping to maintain the vitality and function of the tissue. The aim of this work was to assess the cytotoxicity and bioactivity of three different direct pulp capping materials, calcium hydroxide (Life®), mineral trioxide aggregate (WhiteProRoot®MTA) and calcium silicate (Biodentine™), in an odontoblast-like mouse cell line (MDPC-23). (2) Methods: Metabolic activity was assessed by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide test (MTT)assay, viability by the sulforhodamine B (SRB) assay, and the type of death and cell cycle analysis by flow cytometry. Alkaline phosphatase was evaluated by polymerase chain reaction (PCR), and dentin sialoprotein expression was assessed by immunocytochemistry. Mineralization was determined by the Alizarin Red S colorimetric assay and quantified by spectrophotometry. (3) Results: Life® induced a decrease in metabolic activity and viability, which is associated with an increase cell death. WhiteProRoot®MTA and Biodentine™ induced similar effects in cytotoxicity assays, with an increase in the expression of dentin sialoprotein (DSP) and formation of mineralized deposits, especially with Biodentine™. (4) Conclusions: The results of WhiteProRoot®MTA confirm its indication for these therapies, justifying its recognition as the “gold standard”. Biodentine™ may be an alternative, since they promote the same cellular response that mineral trioxide aggregate (MTA) does.
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13
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Lee BN, Hong JU, Kim SM, Jang JH, Chang HS, Hwang YC, Hwang IN, Oh WM. Anti-inflammatory and Osteogenic Effects of Calcium Silicate–based Root Canal Sealers. J Endod 2019; 45:73-78. [DOI: 10.1016/j.joen.2018.09.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 06/19/2018] [Accepted: 09/09/2018] [Indexed: 10/27/2022]
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14
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Espaladori MC, Maciel KF, Brito LCND, Kawai T, Vieira LQ, Ribeiro Sobrinho AP. Experimental furcal perforation treated with mineral trioxide aggregate plus selenium: immune response. Braz Oral Res 2018; 32:e103. [PMID: 30328900 DOI: 10.1590/1807-3107bor-2018.vol32.0103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 08/01/2018] [Indexed: 11/22/2022] Open
Abstract
The aim of this study is to evaluate the expression of cytokines in response to mineral trioxide aggregate (MTA) plus selenium in germ-free mice with experimental furcal perforation. The first left maxillary molar was opened, and the furcal area was perforated and treated with post-MTA-Se (experimental group). The same surgical intervention was performed for the maxillary right first molar, which was treated with MTA (control group). Fifteen mice were sacrificed 7, 14, and 21 days after furcal perforation, and periapical tissue samples were collected. The mRNA expression levels of the cytokines TGF-β, TNF-α, IFN-γ, HPRT, IL-10, IL-4, RANK, RANKL, IL-1, and IL-17 were assessed by using real-time polymerase chain reaction. In the experimental group, at 21-days post-MTA-Se sealing, the mRNA levels of TNF-α and IL-10 were upregulated compared with those in the control group (p < 0.05). Futher assessment revealed basal mRNA expression levels of IL-1α, IFN-γ, RANK, RANKL, IL-17A, IL-4, and TGF-β, over long experimental times, in both the experimental and control groups (p > 0.05). In conclusion, MTA+Se sealing favoured increased expression of IL-10 and TNF-α at later time points (day 21).
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Affiliation(s)
- Marcela Carvalho Espaladori
- Universidade Federal de Minas Gerais - UFMG, School of Dentistry, Departament of Operative Dentistry, Belo Horizonte, MG, Brazil
| | - Kamilla Faria Maciel
- Universidade Federal de Minas Gerais - UFMG, School of Dentistry, Departament of Operative Dentistry, Belo Horizonte, MG, Brazil
| | | | - Toshihisa Kawai
- The Forsyth Institute, Department of Immunology, Boston, MA, USA
| | - Leda Quércia Vieira
- Universidade Federal de Minas Gerais - UFMG, Institute of Biological Sciences, Departament of Biochemistry and Immunology, Belo Horizonte, MG, Brazil
| | - Antônio Paulino Ribeiro Sobrinho
- Universidade Federal de Minas Gerais - UFMG, School of Dentistry, Departament of Operative Dentistry, Belo Horizonte, MG, Brazil
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15
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Choi HW, Um SH, Rhee SH. Synthesis of a Ca 3 SiO 5 -Ca 2 SiO 4 -Ca 3 Al 2 O 6 cement system with rapid setting capacity by spray-pyrolysis coupled with sol-gel method. J Biomed Mater Res B Appl Biomater 2018; 107:1440-1451. [PMID: 30270515 DOI: 10.1002/jbm.b.34236] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 08/18/2018] [Accepted: 08/23/2018] [Indexed: 11/08/2022]
Abstract
A modified mineral-trioxide-aggregate (mMTA) with rapid setting capacity was newly synthesized by spray-pyrolysis following a sol-gel reaction. Its faster setting capacity and initially higher compressive strength compared with Portland cement (PC) were evaluated. The precursor solution of the mMTA was prepared through condensation following hydrolysis among Ca(NO3 )2 ·4H2 O, Si(OC2 H5 )4 , and Al(NO3 )3 ·9H2 O under nitric acid. The mMTA powder was then synthesized by spray-pyrolysis at 1500°C. The particle shape was spherical with an average particle size of 0.8 ± 0.3 μm, while PC particles were irregular and 3.9 ± 3.0 μm in size. The mMTA consisted of mostly Ca3 SiO5 , Ca3 Al2 O6 , and partial Ca2 SiO4 phases, while the PC comprised mainly Ca3 SiO5 , Ca2 SiO4 , and partial Ca3 Al2 O6 phases. The final setting times of mMTA and PC measured under 95% relative humidity were about 11 min and 3 h, respectively. The early stage of setting in mMTA was dominated by the rapid formation of hexagonal-plate-like Ca3 Al2 O6 ·6H2 O crystals, while that in PC was dominated by needle-like calcium-silicate-hydrate gels and columnar-shaped Ca(OH)2 crystals. The late stage of setting in mMTA was dominated by calcium-silicate-hydrate gels and Ca(OH)2 crystals, while that in PC was dominated by Ca3 Al2 O6 ·6H2 O crystals. The compressive strengths of mMTA and PC after 30 min of setting were 4.5 and 0.2 MPa, respectively. The results suggest that mMTA has potential to be used as a filling material for accidental pulp-exposure or pulpal floor perforation cases that require rapid setting capacity and initial good strength. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 1440-1451, 2019.
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Affiliation(s)
- Hae Won Choi
- Department of Orthodontics, The Institute of Oral Health Science, Samsung Medical Center, Sungkyunkwan University, School of Medicine, Seoul, South Korea
| | - Seung-Hoon Um
- Department of Dental Biomaterials Science, Dental Research Institute and BK21 Plus, School of Dentistry, Seoul National University, Seoul, 03080, South Korea
| | - Sang-Hoon Rhee
- Department of Dental Biomaterials Science, Dental Research Institute and BK21 Plus, School of Dentistry, Seoul National University, Seoul, 03080, South Korea
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16
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Trongkij P, Sutimuntanakul S, Lapthanasupkul P, Chaimanakarn C, Wong R, Banomyong D. Effects of the exposure site on histological pulpal responses after direct capping with 2 calcium-silicate based cements in a rat model. Restor Dent Endod 2018; 43:e36. [PMID: 30483461 PMCID: PMC6237730 DOI: 10.5395/rde.2018.43.e36] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 07/02/2018] [Indexed: 11/11/2022] Open
Abstract
Objectives Direct pulp capping is a treatment for mechanically exposed pulp in which a biocompatible capping material is used to preserve pulpal vitality. Biocompatibility tests in animal studies have used a variety of experimental protocols, particularly with regard to the exposure site. In this study, pulp exposure on the occlusal and mesial surfaces of molar teeth was investigated in a rat model. Materials and Methods A total of 58 maxillary first molars of Wistar rats were used. Forty molars were mechanically exposed and randomly assigned according to 3 factors: 1) the exposure site (occlusal or mesial), 2) the pulp-capping material (ProRoot White MTA or Bio-MA), and 3) 2 follow-up periods (1 day or 7 days) (n = 5 each). The pulp of 6 intact molars served as negative controls. The pulp of 12 molars was exposed without a capping material (n = 3 per exposure site for each period) and served as positive controls. Inflammatory cell infiltration and reparative dentin formation were histologically evaluated at 1 and 7 days using grading scores. Results At 1 day, localized mild inflammation was detected in most teeth in all experimental groups. At 7 days, continuous/discontinuous calcified bridges were formed at exposure sites with no or few inflammatory cells. No significant differences in pulpal response according to the exposure site or calcium-silicate cement were observed. Conclusions The location of the exposure site had no effect on rat pulpal healing. However, mesial exposures could be performed easily, with more consistent results. The pulpal responses were not significantly different between the 2 capping materials.
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Affiliation(s)
- Panruethai Trongkij
- Department of Operative Dentistry and Endodontics, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - Supachai Sutimuntanakul
- Department of Operative Dentistry and Endodontics, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - Puangwan Lapthanasupkul
- Department of Oral and Maxillofacial Pathology, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - Chitpol Chaimanakarn
- Department of Operative Dentistry and Endodontics, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - Rebecca Wong
- Restorative Section, Melbourne Dental School, University of Melbourne, Melbourne, VIC, Australia
| | - Danuchit Banomyong
- Department of Operative Dentistry and Endodontics, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
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17
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An S. The emerging role of extracellular Ca
2+
in osteo/odontogenic differentiation and the involvement of intracellular Ca
2+
signaling: From osteoblastic cells to dental pulp cells and odontoblasts. J Cell Physiol 2018; 234:2169-2193. [DOI: 10.1002/jcp.27068] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 06/25/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Shaofeng An
- Department of Operative Dentistry and EndodonticsGuanghua School of Stomatology, Hospital of Stomatology, Sun Yat‐sen UniversityGuangzhou China
- Guangdong Province Key Laboratory of StomatologySun Yat‐Sen UniversityGuangzhou China
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18
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Hanada K, Morotomi T, Washio A, Yada N, Matsuo K, Teshima H, Yokota K, Kitamura C. In vitro and in vivo effects of a novel bioactive glass-based cement used as a direct pulp capping agent. J Biomed Mater Res B Appl Biomater 2018; 107:161-168. [PMID: 29575555 DOI: 10.1002/jbm.b.34107] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 02/14/2018] [Accepted: 02/26/2018] [Indexed: 01/29/2023]
Abstract
Direct pulp capping is an important procedure for preserving pulp viability. The pulp capping agent must possess several properties, including usability, biocompatibility, and the ability to induce reparative dentin formation. In this study, a novel bioactive glass-based cement was examined to determine whether the cement has the necessary properties to act as a direct pulp capping agent. Physicochemical properties of the bioactive glass-based cement and in vitro effects of the cement on odontoblast-like cells, as well as in vivo effects on the exposed dental pulp, were analyzed. The cement immersed in water stabilized at pH10, and hydroxyapatite-like precipitation was induced on the surface of the cement in simulate body fluid. There were no cytotoxic effects on the viability, alkaline phosphatase activity, or calcium deposition ability of odontoblast-like cells. In the in vivo rat study of an exposed dental pulp model, the cement induced a sufficient level of reparative dentin formation by odontoblast-like cells expressing odontoblastic markers at the exposed area of the dental pulp. These results suggest that the newly developed bioactive glass-based cement provides favorable biocompatibility with the dental pulp and may be useful as a direct pulp capping agent. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 107B: 161-168, 2019.
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Affiliation(s)
- Kaori Hanada
- Division of Endodontics and Restorative Dentistry, Department of Science of Oral Functions, Kyushu Dental University, Fukuoka, Japan
| | - Takahiko Morotomi
- Division of Endodontics and Restorative Dentistry, Department of Science of Oral Functions, Kyushu Dental University, Fukuoka, Japan
| | - Ayako Washio
- Division of Endodontics and Restorative Dentistry, Department of Science of Oral Functions, Kyushu Dental University, Fukuoka, Japan
| | - Naomi Yada
- Division of Oral Pathology, Department of Health Promotion, Kyushu Dental University, Fukuoka, Japan
| | - Kou Matsuo
- Division of Oral Pathology, Department of Health Promotion, Kyushu Dental University, Fukuoka, Japan
| | | | | | - Chiaki Kitamura
- Division of Endodontics and Restorative Dentistry, Department of Science of Oral Functions, Kyushu Dental University, Fukuoka, Japan
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19
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Argueta-Figueroa L, Delgado-García JJ, García-Contreras R, Martínez-Alvarez O, Santos-Cruz J, Oliva-Martínez C, Acosta-Torres LS, de la Fuente-Hernández J, Arenas-Arrocena MC. Mineral trioxide aggregate enriched with iron disulfide nanostructures: an evaluation of their physical and biological properties. Eur J Oral Sci 2018; 126:234-243. [PMID: 29442393 DOI: 10.1111/eos.12408] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The purpose of this study was to characterize mineral trioxide aggregates (MTA) enriched with iron disulfide (FeS2 ) nanostructures at different concentrations, and to investigate their storage modulus, radiopacity, setting time, pH, cytotoxicity, and antimicrobial activity. Iron disulfide nanostructures [with particle size of 0.357 ± 0.156 μm (mean ± SD)] at weight ratios of 0.2, 0.4, 0.6, 0.8, and 1.0 wt% were added to white MTA (wMTA). The radiopacity, rheological properties, setting time, and pH, as well as the cytotoxicity (assessed using the MTT assay) and antibacterial activity (assessed using the broth microdilution test) were determined for MTA/FeS2 nanostructures. The nanostructures did not modify the radiopacity values of wMTA (~6 mm of aluminium); however, they reduced the setting time from 18.2 ± 3.20 min to 13.7 ± 1.8 min, and the storage modulus was indicative of a good stiffness. Whereas the wMTA/FeS2 nanostructures did not induce cytotoxicity when in contact with human pulp cells (HPCs) and human gingival fibroblasts (HGFs), they showed bacteriostatic activity against Staphylococcus aureus, Escherichia coli, and Enterococcus faecalis. Adding FeS2 nanostructures to MTA might be an option for improving the root canal sealing and antibacterial effects of wMTA in endodontic treatments.
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Affiliation(s)
- Liliana Argueta-Figueroa
- Laboratorio de Investigación Interdisciplinaria, Área de Nanoestructuras y Biomateriales, Escuela Nacional de Estudios Superiores Unidad León, Universidad Nacional Autónoma de México, León, Guanajuato, México
| | - José J Delgado-García
- División de Ciencias e Ingenierías, Universidad de Guanajuato, León, Guanajuato, México
| | - René García-Contreras
- Laboratorio de Investigación Interdisciplinaria, Área de Nanoestructuras y Biomateriales, Escuela Nacional de Estudios Superiores Unidad León, Universidad Nacional Autónoma de México, León, Guanajuato, México
| | - Omar Martínez-Alvarez
- Departamento de Ingeniería en Energía, Universidad Politécnica de Guanajuato, Guanajuato, México
| | - José Santos-Cruz
- Facultad de Química, Energía-Materiales, Universidad Autónoma de Querétaro, Querétaro, México
| | - Carlos Oliva-Martínez
- Laboratorio de Investigación Interdisciplinaria, Área de Nanoestructuras y Biomateriales, Escuela Nacional de Estudios Superiores Unidad León, Universidad Nacional Autónoma de México, León, Guanajuato, México
| | - Laura S Acosta-Torres
- Laboratorio de Investigación Interdisciplinaria, Área de Nanoestructuras y Biomateriales, Escuela Nacional de Estudios Superiores Unidad León, Universidad Nacional Autónoma de México, León, Guanajuato, México
| | - Javier de la Fuente-Hernández
- Laboratorio de Investigación Interdisciplinaria, Área de Nanoestructuras y Biomateriales, Escuela Nacional de Estudios Superiores Unidad León, Universidad Nacional Autónoma de México, León, Guanajuato, México
| | - Ma C Arenas-Arrocena
- Laboratorio de Investigación Interdisciplinaria, Área de Nanoestructuras y Biomateriales, Escuela Nacional de Estudios Superiores Unidad León, Universidad Nacional Autónoma de México, León, Guanajuato, México
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20
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Kahler B, Chugal N, Lin LM. Alkaline Materials and Regenerative Endodontics: A Review. MATERIALS 2017; 10:ma10121389. [PMID: 29206139 PMCID: PMC5744324 DOI: 10.3390/ma10121389] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 11/23/2017] [Accepted: 11/29/2017] [Indexed: 12/16/2022]
Abstract
Periapical health is the primary goal of endodontic treatment in mature and immature teeth. In addition, the goals of treatment of immature teeth with arrested root development include root growth to length and maturation of the apex, as well as thickening of the canal wall. These goals are valid for immature teeth that have been subjected to trauma and dental caries or that are the result of developmental anomalies that expose the tooth to the risk of pulp necrosis and consequently result in the cessation of root maturation. Regenerative endodontic procedures (REPs) have been described as a “paradigm shift” in the treatment of immature teeth with pulp necrosis and underdeveloped roots, as there is the potential for further root maturation and return of vitality. Treatment with REPs is advocated as the treatment of choice for immature teeth with pulp necrosis. REP protocols involve the use of alkaline biomaterials, primarily sodium hypochlorite, calcium hydroxide, mineral trioxide aggregates and Biodentine, and are the essential components of a successful treatment regimen.
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Affiliation(s)
- Bill Kahler
- The School of Dentistry, The University of Queensland, Brisbane 4072, Australia.
| | - Nadia Chugal
- School of Dentistry, UCLA, CHS A3-075, Los Angeles, CA 90095-1668, USA.
| | - Louis M Lin
- College of Dentistry, New York University, 345 East 24th Street, New York, NY 10010, USA.
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21
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Wang Y, Zhou Y, Jin L, Pang X, Lu Y, Wang Z, Yu Y, Yu J. Mineral trioxide aggregate enhances the osteogenic capacity of periodontal ligament stem cells via NF-κB and MAPK signaling pathways. J Cell Physiol 2017; 233:2386-2397. [DOI: 10.1002/jcp.26110] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 07/20/2017] [Indexed: 12/23/2022]
Affiliation(s)
- Yanqiu Wang
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University; Nanjing Jiangsu China
- Endodontic Department, School of Stomatology; Nanjing Medical University; Nanjing Jiangsu China
| | - Yixiang Zhou
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University; Nanjing Jiangsu China
- IVY Dental Clinic; Hangzhou Zhejiang China
| | - Lin Jin
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University; Nanjing Jiangsu China
- Endodontic Department, School of Stomatology; Nanjing Medical University; Nanjing Jiangsu China
| | - Xiyao Pang
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University; Nanjing Jiangsu China
- Endodontic Department, School of Stomatology; Nanjing Medical University; Nanjing Jiangsu China
| | - Yadie Lu
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University; Nanjing Jiangsu China
| | - Zilu Wang
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University; Nanjing Jiangsu China
| | - Yan Yu
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University; Nanjing Jiangsu China
- Endodontic Department, School of Stomatology; Nanjing Medical University; Nanjing Jiangsu China
| | - Jinhua Yu
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University; Nanjing Jiangsu China
- Endodontic Department, School of Stomatology; Nanjing Medical University; Nanjing Jiangsu China
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22
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Agnes A, Long A, Best S, Lobner D. Pulp Capping Materials Alter the Toxicity and Oxidative Stress Induced by Composite Resins in Dental Pulp Culture. Eur Endod J 2017; 2:1-6. [PMID: 33403322 PMCID: PMC7757939 DOI: 10.5152/eej.2017.17001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 02/13/2017] [Accepted: 02/27/2017] [Indexed: 01/09/2023] Open
Abstract
Objective: Direct pulp capping involves covering exposed pulp to preserve its viability. Calcium hydroxide materials have traditionally been the most commonly used pulp capping compounds; however, they can be toxic, and their success rate in pulp capping is variable. Recently, the compound mineral trioxide aggregate (MTA) has gained wide use for pulp capping. One advantage of MTA is its low toxicity. However, the effects of MTA and calcium hydroxide compounds on the toxicities of other dental materials have not been tested. The aim of this study is to determine whether different pulp capping materials can alter the toxicity of composite restoration materials. Methods: We used cultured human dental pulp cells to test the toxicities of the calcium hydroxide pulp capping material Dycal and MTA. We then tested the abilities of these compounds to alter the toxicity of the composite materials Durafill and Flow Line and to induce oxidative stress. Results: As expected, Dycal demonstrated toxicity, while MTA did not. However, when cells were exposed to subtoxic amounts of Dycal or MTA, then exposed to Durafill or Flow Line, changes in the composite materials induced toxicity. Treatment with Dycal had no effect on the toxicity of Durafill, but significantly attenuated the toxicity of Flow Line; meanwhile, MTA significantly enhanced the toxicity of Durafill but had no effect on the toxicity of Flow Line. Early changes in oxidative stress were correlated with later changes in cell death. Statistical calculations were performed using one-way ANOVA followed by the Bonferroni t-test. P-values <0.05 were considered to indicate significant differences. Conclusion: The results suggest that when choosing a pulp capping material, one factor that should be considered is the impact of that compound on the toxicity of the composite material used for restoration.
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Affiliation(s)
- Alison Agnes
- Department of Biomedical Sciences, Marquette University, Milwaukee, USA
| | - Audi Long
- Department of Orthodontics, Marquette University, Milwaukee, USA
| | - Samantha Best
- Department of Biomedical Sciences, Marquette University, Milwaukee, USA
| | - Doug Lobner
- Department of Biomedical Sciences, Marquette University, Milwaukee, USA
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23
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Tanomaru-Filho M, Andrade AS, Rodrigues EM, Viola KS, Faria G, Camilleri J, Guerreiro-Tanomaru JM. Biocompatibility and mineralized nodule formation of Neo MTA Plus and an experimental tricalcium silicate cement containing tantalum oxide. Int Endod J 2017; 50 Suppl 2:e31-e39. [DOI: 10.1111/iej.12780] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 04/04/2017] [Indexed: 12/01/2022]
Affiliation(s)
- M. Tanomaru-Filho
- UNESP - São Paulo State University; Araraquara School of Dentistry; Department of Restorative Dentistry; Araraquara São Paulo Brazil
| | - A. S. Andrade
- UNESP - São Paulo State University; Araraquara School of Dentistry; Department of Restorative Dentistry; Araraquara São Paulo Brazil
| | - E. M. Rodrigues
- UNESP - São Paulo State University; Araraquara School of Dentistry; Department of Restorative Dentistry; Araraquara São Paulo Brazil
| | - K. S. Viola
- UNESP - São Paulo State University; Araraquara School of Dentistry; Department of Restorative Dentistry; Araraquara São Paulo Brazil
| | - G. Faria
- UNESP - São Paulo State University; Araraquara School of Dentistry; Department of Restorative Dentistry; Araraquara São Paulo Brazil
| | - J. Camilleri
- University of Malta; Faculty of Dental Surgery; Department of Restorative Dentistry; Msida Malta
| | - J. M. Guerreiro-Tanomaru
- UNESP - São Paulo State University; Araraquara School of Dentistry; Department of Restorative Dentistry; Araraquara São Paulo Brazil
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24
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Collado-González M, García-Bernal D, Oñate-Sánchez RE, Ortolani-Seltenerich PS, Álvarez-Muro T, Lozano A, Forner L, Llena C, Moraleda JM, Rodríguez-Lozano FJ. Cytotoxicity and bioactivity of various pulpotomy materials on stem cells from human exfoliated primary teeth. Int Endod J 2017; 50 Suppl 2:e19-e30. [DOI: 10.1111/iej.12751] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 02/02/2017] [Indexed: 11/27/2022]
Affiliation(s)
- M. Collado-González
- Cellular Therapy and Hematopoietic Transplant Unit; Hematology Department; Virgen de la Arrixaca Clinical University Hospital; IMIB; University of Murcia; Murcia Spain
| | - D. García-Bernal
- Cellular Therapy and Hematopoietic Transplant Unit; Hematology Department; Virgen de la Arrixaca Clinical University Hospital; IMIB; University of Murcia; Murcia Spain
| | - R. E. Oñate-Sánchez
- School of Dentistry; Faculty of Medicine; University of Murcia; Murcia Spain
| | | | | | - A. Lozano
- Department of Stomatology; Universitat de Valencia; Valencia Spain
| | - L. Forner
- Department of Stomatology; Universitat de Valencia; Valencia Spain
| | - C. Llena
- Department of Stomatology; Universitat de Valencia; Valencia Spain
| | - J. M. Moraleda
- Cellular Therapy and Hematopoietic Transplant Unit; Hematology Department; Virgen de la Arrixaca Clinical University Hospital; IMIB; University of Murcia; Murcia Spain
| | - F. J. Rodríguez-Lozano
- Cellular Therapy and Hematopoietic Transplant Unit; Hematology Department; Virgen de la Arrixaca Clinical University Hospital; IMIB; University of Murcia; Murcia Spain
- School of Dentistry; Faculty of Medicine; University of Murcia; Murcia Spain
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25
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CHEN L, SUH BI. Cytotoxicity and biocompatibility of resin-free and resin-modified direct pulp capping materials: A state-of-the-art review. Dent Mater J 2017; 36:1-7. [DOI: 10.4012/dmj.2016-107] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Liang CHEN
- Department of Research and Development, Bisco Inc
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26
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Phung S, Lee C, Hong C, Song M, Yi JK, Stevenson RG, Kang MK, Shin KH, Park NH, Kim RH. Effects of Bioactive Compounds on Odontogenic Differentiation and Mineralization. J Dent Res 2016; 96:107-115. [PMID: 28033065 DOI: 10.1177/0022034516675152] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Direct pulp capping involves the placement of dental materials directly onto vital pulp tissues after deep caries removal to stimulate the regeneration of reparative dentin. This physical barrier will serve as a "biological seal" between these materials and the pulp tissue. Although numerous direct pulp capping materials are available, the use of small bioactive compounds that can potently stimulate and expedite reparative dentin formation is still underexplored. Here, the authors compared and evaluated the pro-osteogenic and pro-odontogenic effects of 4 small bioactive compounds- phenamil (Phen), purmorphamine (Pur), genistein (Gen), and metformin (Met). The authors found that these compounds at noncytotoxic concentrations induced differentiation and mineralization of preosteoblastic MC3T3-E1 cells and preodontoblastic dental pulp stem cells (DPSCs) in a dose-dependent manner. Among them, Phen consistently and potently induced differentiation and mineralization in vitro. A single treatment with Phen was sufficient to enhance the mineralization potential of DPSCs in vitro. More importantly, Phen-treated DPSCs showed enhanced odontogenic differentiation and mineralization in vivo. Our study suggests that these small bioactive compounds merit further study for their potential clinical use as pulp capping materials.
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Affiliation(s)
- S Phung
- 1 The Shapiro Family Laboratory of Viral Oncology and Aging Research, UCLA School of Dentistry, Los Angeles, CA, USA
| | - C Lee
- 1 The Shapiro Family Laboratory of Viral Oncology and Aging Research, UCLA School of Dentistry, Los Angeles, CA, USA.,2 Section of Restorative Dentistry, UCLA School of Dentistry, Los Angeles, CA, USA
| | - C Hong
- 3 Section of Orthodontics, UCLA School of Dentistry, Los Angeles, CA, USA
| | - M Song
- 1 The Shapiro Family Laboratory of Viral Oncology and Aging Research, UCLA School of Dentistry, Los Angeles, CA, USA.,2 Section of Restorative Dentistry, UCLA School of Dentistry, Los Angeles, CA, USA
| | - J K Yi
- 1 The Shapiro Family Laboratory of Viral Oncology and Aging Research, UCLA School of Dentistry, Los Angeles, CA, USA
| | - R G Stevenson
- 2 Section of Restorative Dentistry, UCLA School of Dentistry, Los Angeles, CA, USA
| | - M K Kang
- 1 The Shapiro Family Laboratory of Viral Oncology and Aging Research, UCLA School of Dentistry, Los Angeles, CA, USA.,4 UCLA Jonsson Comprehensive Cancer Center, Los Angeles, CA, USA
| | - K-H Shin
- 1 The Shapiro Family Laboratory of Viral Oncology and Aging Research, UCLA School of Dentistry, Los Angeles, CA, USA.,4 UCLA Jonsson Comprehensive Cancer Center, Los Angeles, CA, USA
| | - N-H Park
- 1 The Shapiro Family Laboratory of Viral Oncology and Aging Research, UCLA School of Dentistry, Los Angeles, CA, USA.,4 UCLA Jonsson Comprehensive Cancer Center, Los Angeles, CA, USA.,5 David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - R H Kim
- 1 The Shapiro Family Laboratory of Viral Oncology and Aging Research, UCLA School of Dentistry, Los Angeles, CA, USA.,2 Section of Restorative Dentistry, UCLA School of Dentistry, Los Angeles, CA, USA.,4 UCLA Jonsson Comprehensive Cancer Center, Los Angeles, CA, USA
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27
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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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Rodrigues EM, Cornélio ALG, Mestieri LB, Fuentes ASC, Salles LP, Rossa-Junior C, Faria G, Guerreiro-Tanomaru JM, Tanomaru-Filho M. Human dental pulp cells response to mineral trioxide aggregate (MTA) and MTA Plus: cytotoxicity and gene expression analysis. Int Endod J 2016; 50:780-789. [DOI: 10.1111/iej.12683] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Accepted: 08/11/2016] [Indexed: 01/09/2023]
Affiliation(s)
- E. M. Rodrigues
- Department of Restorative Dentistry; Araraquara School of Dentistry; UNESP - Univ Estadual Paulista; Araraquara São Paulo Brazil
| | - A. L. G. Cornélio
- Department of Restorative Dentistry; Araraquara School of Dentistry; UNESP - Univ Estadual Paulista; Araraquara São Paulo Brazil
| | - L. B. Mestieri
- Department of Restorative Dentistry; Araraquara School of Dentistry; UNESP - Univ Estadual Paulista; Araraquara São Paulo Brazil
| | - A. S. C. Fuentes
- Laboratory of Molecular Biology; Department of Genetic and Evolution; Federal University of São Carlos; São Carlos São Paulo Brazil
| | - L. P. Salles
- Cellular Biology Department; Institute of Biological Sciences; University of Brasília; Distrito Federal Brazil
| | - C. Rossa-Junior
- Department of Diagnosis and Surgery; Araraquara School of Dentistry; UNESP - Univ Estadual Paulista; Araraquara São Paulo Brazil
| | - G. Faria
- Department of Restorative Dentistry; Araraquara School of Dentistry; UNESP - Univ Estadual Paulista; Araraquara São Paulo Brazil
| | - J. M. Guerreiro-Tanomaru
- Department of Restorative Dentistry; Araraquara School of Dentistry; UNESP - Univ Estadual Paulista; Araraquara São Paulo Brazil
| | - M. Tanomaru-Filho
- Department of Restorative Dentistry; Araraquara School of Dentistry; UNESP - Univ Estadual Paulista; Araraquara São Paulo Brazil
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Castro-Raucci LMS, Teixeira LN, Oliveira IR, Raucci-Neto W, Jacobovitz M, Rosa AL, de Oliveira PT. Osteogenic cell response to calcium aluminate-based cement. Int Endod J 2016; 50:771-779. [DOI: 10.1111/iej.12682] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 08/10/2016] [Indexed: 12/26/2022]
Affiliation(s)
- L. M. S. Castro-Raucci
- School of Dentistry of Ribeirão Preto; University of São Paulo; Ribeirão Preto SP Brazil
- School of Dentistry; University of Ribeirão Preto; Ribeirão Preto SP Brazil
| | - L. N. Teixeira
- School of Dentistry of Ribeirão Preto; University of São Paulo; Ribeirão Preto SP Brazil
- Department of Oral Pathology; São Leopoldo Mandic Institute and Research Center; Campinas SP Brazil
| | - I. R. Oliveira
- Institute for Research and Development; University of Vale do Paraíba; São José dos Campos SP Brazil
| | - W. Raucci-Neto
- School of Dentistry of Ribeirão Preto; University of São Paulo; Ribeirão Preto SP Brazil
- School of Dentistry; University of Ribeirão Preto; Ribeirão Preto SP Brazil
| | - M. Jacobovitz
- Endodontics Private Practitioner; São Carlos SP Brazil
| | - A. L. Rosa
- School of Dentistry of Ribeirão Preto; University of São Paulo; Ribeirão Preto SP Brazil
| | - P. T. de Oliveira
- School of Dentistry of Ribeirão Preto; University of São Paulo; Ribeirão Preto SP Brazil
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Lee BN, Lee BG, Chang HS, Hwang YC, Hwang IN, Oh WM. Effects of a novel light-curable material on odontoblastic differentiation of human dental pulp cells. Int Endod J 2016; 50:464-471. [DOI: 10.1111/iej.12642] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Accepted: 03/24/2016] [Indexed: 11/30/2022]
Affiliation(s)
- B.-N. Lee
- Department of Conservative Dentistry; School of Dentistry; Dental Science Research Institute; Chonnam National University; Gwangju Korea
| | - B.-G. Lee
- Department of Conservative Dentistry; School of Dentistry; Dental Science Research Institute; Chonnam National University; Gwangju Korea
| | - H.-S. Chang
- Department of Conservative Dentistry; School of Dentistry; Dental Science Research Institute; Chonnam National University; Gwangju Korea
| | - Y.-C. Hwang
- Department of Conservative Dentistry; School of Dentistry; Dental Science Research Institute; Chonnam National University; Gwangju Korea
| | - I.-N. Hwang
- Department of Conservative Dentistry; School of Dentistry; Dental Science Research Institute; Chonnam National University; Gwangju Korea
| | - W.-M. Oh
- Department of Conservative Dentistry; School of Dentistry; Dental Science Research Institute; Chonnam National University; Gwangju Korea
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Saberi EA, Karkehabadi H, Mollashahi NF. Cytotoxicity of Various Endodontic Materials on Stem Cells of Human Apical Papilla. IRANIAN ENDODONTIC JOURNAL 2015; 11:17-22. [PMID: 26843872 PMCID: PMC4731528 DOI: 10.7508/iej.2016.01.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2015] [Revised: 09/16/2015] [Accepted: 10/04/2015] [Indexed: 12/31/2022]
Abstract
INTRODUCTION This in vitro study assessed and compared the cytotoxicity of mineral trioxide aggregate (MTA), calcium-enriched mixture (CEM) cement, Biodentine (BD) and octacalcium phosphate (OCP) on stem cells of the human apical papilla (SCAP). METHODS AND MATERIALS SCAPs were isolated from two semi-impacted third molars. The cells were cultured in wells of an insert 24-well plate and were then incubated. The plates were then removed from the incubator and randomly divided into four experimental groups that were exposed to 1-mm discs of set MTA, CEM, BD or OCP, and one untreated control group. After 24, 48 and 168 h, the plates were removed from the incubator and 3-[4, 5-dimethylthiazol-2-yl]-2, 5-diphenyl tetrazolium bromide (MTT) solution was added to each well. Data were analyzed at different time points using the repeated measures ANOVA followed by Bonferroni test and the level of significance was set at 0.05. RESULTS Cytotoxicity of the four materials was not significantly different from that of the control group at 24, 48 and 168 h (P>0.05). Two-by-two comparison revealed that cytotoxicity of MTA and CEM cement was significantly different from each other at 168 h (P<0.05) although the cytotoxicity of CEM was less than MTA. Cytotoxicity of OCP and MTA was also significantly different from each other at 48 h and OCP had more favorable biocompatibility than MTA (P<0.05). CONCLUSION CEM, OCP, BD and MTA showed acceptable biocompatibility when exposed to SCAP. Over time, CEM showed the least cytotoxicity among the materials under study.
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Affiliation(s)
- Eshagh Ali Saberi
- Oral and Dental Diseases Research Center and Department of Endodontics, Dental School, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Hamed Karkehabadi
- Department of Endodontics, Dental School, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Narges Farhad Mollashahi
- Oral and Dental Diseases Research Center and Department of Endodontics, Dental School, Zahedan University of Medical Sciences, Zahedan, Iran
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Rathinam E, Rajasekharan S, Chitturi RT, Martens L, De Coster P. Gene Expression Profiling and Molecular Signaling of Dental Pulp Cells in Response to Tricalcium Silicate Cements: A Systematic Review. J Endod 2015; 41:1805-17. [DOI: 10.1016/j.joen.2015.07.015] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 07/09/2015] [Accepted: 07/24/2015] [Indexed: 12/29/2022]
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Osteogenic differentiation of dental pulp stem cells under the influence of three different materials. BMC Oral Health 2015; 15:132. [PMID: 26510991 PMCID: PMC4624653 DOI: 10.1186/s12903-015-0113-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Accepted: 10/08/2015] [Indexed: 12/13/2022] Open
Abstract
Background Regeneration of periodontal tissues is a major goal of periodontal therapy. Dental pulp stem cells (DPSCs) show mesenchymal cell properties with the potential for dental tissue engineering. Enamel matrix derivative (EMD) and platelet-derived growth factor (PDGF) are examples of materials that act as signaling molecules to enhance periodontal regeneration. Mineral trioxide aggregate (MTA) has been proven to be biocompatible and appears to have some osteoconductive properties. The objective of this study was to evaluate the effects of EMD, MTA, and PDGF on DPSC osteogenic differentiation. Methods Human DPSCs were cultured in medium containing EMD, MTA, or PDGF. Control groups were also established. Evaluation of the achieved osteogenesis was carried out by computer analysis of alkaline phosphatase (ALP)-stained chambers, and spectrophotometric analysis of alizarin red S-stained mineralized nodules. Results EMD significantly increased the amounts of ALP expression and mineralization compared with all other groups (P < 0.05). Meanwhile, MTA gave variable results with slight increases in certain differentiation parameters, and PDGF showed no significant increase in the achieved differentiation. Conclusions EMD showed a very strong osteogenic ability compared with PDGF and MTA, and the present results provide support for its use in periodontal regeneration.
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Mori GG, Teixeira LM, Louzada de Oliveira D, Jacomini LM, Rodrigues da Silva S. Biocompatibility Evaluation of Biodentine in Subcutaneous Tissue of Rats. J Endod 2014; 40:1485-8. [DOI: 10.1016/j.joen.2014.02.027] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 11/26/2013] [Accepted: 02/25/2014] [Indexed: 11/26/2022]
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Kim GH, Park YD, Lee SY, El-Fiqi A, Kim JJ, Lee EJ, Kim HW, Kim EC. Odontogenic stimulation of human dental pulp cells with bioactive nanocomposite fiber. J Biomater Appl 2014; 29:854-66. [PMID: 25098335 DOI: 10.1177/0885328214546884] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The aim of the present study was to investigate the effects of a composite nanofibrous matrix made of biopolymer blend polycaprolactone-gelatin (BP) and mesoporous bioactive glass nanoparticles (BGNs) on the odontogenic differentiation of human dental pulp cells (HDPCs). BGN-BP nanomatrices, with BGN content of up to 20 wt%, were produced via electrospinning. The differentiation of the HDPCs was evaluated by using an ALP activity assay, calcified nodule formation, and mRNA expression for markers. Integrin and its underlying signal pathways were assessed via reverse transcriptase-polymerase chain reaction and Western blot analysis. Although cell growth and attachment on the BGN-BP nanomatrix was similar to that on BP, ALP activity, mineralized nodule formation, and mRNA, expressions involving ALP, osteocalcin, osteopontin, dentin sialophosphoprotein, and dentin matrix protein-1 were greater on BGN-BP. BGN-BP upregulated the key adhesion receptors (integrin components α1, α2, α5, and β1) and activated integrin downstream pathways, such as phosphorylated-focal adhesion kinase (p-FAK), and p-paxillin. In addition, BGN-BP activated BMP receptors, BMP-2 mRNA, and p-Smad 1/5/8, and such activation was blocked by the BMP antagonist, noggin. Furthermore, BGN-BP induced phosphorylation of extracellular signal-regulated kinase, protein kinase 38, and c-Jun-N-terminal kinase mitogen-activated protein kinases and activated expression of the transcription factors Runx2 and Osterix in HDPCs. Collectively, the results indicated for the first time that a BGN-BP composite nanomatrix promoted odontogenic differentiation of HDPCs through the integrin, BMP, and mitogen-activated protein kinases signaling pathway. Moreover, the nanomatrix is considered to be promising scaffolds for the culture of HDPCs and dental tissue engineering.
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Affiliation(s)
- Ga-Hyun Kim
- Department of Oral and Maxillofacial Pathology, Research Center for Tooth and Periodontal Regeneration (MRC), School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
| | - Yong-Duk Park
- Department of Preventive and Society Dentistry, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
| | - So-Youn Lee
- Department of Oral and Maxillofacial Pathology, Research Center for Tooth and Periodontal Regeneration (MRC), School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
| | - Ahmed El-Fiqi
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, South Korea College of Dentistry & Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
| | - Jung-Ju Kim
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, South Korea College of Dentistry & Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
| | - Eun-Jung Lee
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, South Korea College of Dentistry & Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
| | - Hae-Won Kim
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, South Korea College of Dentistry & Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
| | - Eun-Cheol Kim
- Department of Oral and Maxillofacial Pathology, Research Center for Tooth and Periodontal Regeneration (MRC), School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
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Lee BN, Lee KN, Koh JT, Min KS, Chang HS, Hwang IN, Hwang YC, Oh WM. Effects of 3 Endodontic Bioactive Cements on Osteogenic Differentiation in Mesenchymal Stem Cells. J Endod 2014; 40:1217-22. [DOI: 10.1016/j.joen.2014.01.036] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Revised: 11/27/2013] [Accepted: 01/21/2014] [Indexed: 11/15/2022]
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Jung JY, Woo SM, Lee BN, Koh JT, Nör JE, Hwang YC. Effect of Biodentine and Bioaggregate on odontoblastic differentiation via mitogen-activated protein kinase pathway in human dental pulp cells. Int Endod J 2014; 48:177-84. [DOI: 10.1111/iej.12298] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Accepted: 04/14/2014] [Indexed: 11/30/2022]
Affiliation(s)
- J.-Y. Jung
- Department of Physiology; School of Dentistry; Dental Science Research Institute; Chonnam National University; Gwangju Korea
- Research Center for Biomineralization Disorders. Chonnam National University; Gwangju Korea
| | - S.-M. Woo
- Department of Physiology; School of Dentistry; Dental Science Research Institute; Chonnam National University; Gwangju Korea
- Research Center for Biomineralization Disorders. Chonnam National University; Gwangju Korea
| | - B.-N. Lee
- Research Center for Biomineralization Disorders. Chonnam National University; Gwangju Korea
- Department of Conservative Dentistry; School of Dentistry; Dental Science Research Institute; Chonnam National University; Gwangju Korea
| | - J.-T. Koh
- Research Center for Biomineralization Disorders. Chonnam National University; Gwangju Korea
| | - J. E. Nör
- Angiogenesis Research Laboratory; Department of Cariology; Restorative Sciences; Endodontics; School of Dentistry; University of Michigan; Ann Arbor MI USA
| | - Y.-C. Hwang
- Research Center for Biomineralization Disorders. Chonnam National University; Gwangju Korea
- Department of Conservative Dentistry; School of Dentistry; Dental Science Research Institute; Chonnam National University; Gwangju Korea
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Labban N, Yassen GH, Windsor LJ, Platt JA. The direct cytotoxic effects of medicaments used in endodontic regeneration on human dental pulp cells. Dent Traumatol 2014; 30:429-34. [DOI: 10.1111/edt.12108] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/23/2014] [Indexed: 11/27/2022]
Affiliation(s)
- Nawaf Labban
- Department of Prosthetic Dental Science; King Saud University; Riyadh Saudi Arabia
- Department of Oral Biology; Indiana University School of Dentistry; Indianapolis IN USA
| | - Ghaeth H. Yassen
- Department of Pediatric; Orthodontic and Preventive Dentistry; Mosul University School of Dentistry; Mosul Iraq
- Department of Restorative Dentistry; Division of Dental Biomaterials; Indiana University School of Dentistry; Indianapolis IN USA
| | - L. Jack Windsor
- Department of Oral Biology; Indiana University School of Dentistry; Indianapolis IN USA
| | - Jeffrey A. Platt
- Department of Restorative Dentistry; Division of Dental Biomaterials; Indiana University School of Dentistry; Indianapolis IN USA
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In vitro cytotoxicity evaluation of four vital pulp therapy materials on l929 fibroblasts. ISRN DENTISTRY 2014; 2014:191068. [PMID: 24724032 PMCID: PMC3958681 DOI: 10.1155/2014/191068] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Accepted: 01/21/2014] [Indexed: 11/18/2022]
Abstract
The aim of this study was to evaluate cytotoxicity of direct pulp capping materials such as Dycal, Life, ProRoot MTA, and Super-Bond C&B on L929 fibroblasts. Freshly mixed or set materials were prepared and eluted by incubation with cell culture medium for working time period (fresh) or for 6 hours (set). The cells were exposed to media containing elutes for 24 hours, after which the cell survival was evaluated by MTS assays. In freshly mixed materials, average ± standard deviation % cell viabilities were 40.2 ± 14.0%, 43.7 ± 16.0%, 72.9 ± 12.7%, and 66.0 ± 13.6% for Dycal, Life, ProRoot MTA, and Super-Bond C&B, respectively. There was no statistical difference in cell viabilities among material groups, whereas in set materials, the cell viabilities were 48.7 ± 14.8%, 37.2 ± 10.6%, 46.7 ± 15.2%, and 100 ± 21.9% for Dycal, Life, ProRoot MTA, and Super-Bond C&B, respectively. Super-Bond C&B showed more cell viabilities than the other three material groups (P < 0.05). The four vital pulp therapy materials had similar cytotoxicity when the materials were fresh. Super-Bond C&B was less cytotoxic than Dycal, Life, and ProRoot MTA after the materials were set, which suggests the use of SB-C&B in future in vivo clinical investigations.
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The survival role of peroxisome proliferator-activated receptor gamma induces odontoblast differentiation against oxidative stress in human dental pulp cells. J Endod 2014; 39:236-41. [PMID: 23321237 DOI: 10.1016/j.joen.2012.11.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Revised: 10/24/2012] [Accepted: 11/06/2012] [Indexed: 01/21/2023]
Abstract
INTRODUCTION Peroxisome proliferator-activated receptor gamma (PPARγ) has well-known anti-inflammatory action in human dental pulp cells (HDPCs). The purpose of this study was to investigate whether the anti-inflammatory action of PPARγ involves in cellular cytoprotection and supports odontoblast differentiation under oxidative stress in HDPCs. METHODS To simulate long-term oxidative stress, pulp cells were treated with 150 μmol hydrogen peroxide (H(2)O(2)) for 12 days. The replication deficiency adenovirus (adenovirus PPARγ) was introduced for PPARγ overexpression in pulp cells. The cellular cytotoxicity and reactive oxygen species formation by H(2)O(2) were determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and 2',7'-dichlorodihydrofluorescein diacetate with fluorescence-activated cell sorting assay. To determine the roles of PPARγ, several molecules of odontogenic/osteogenic and signal pathway were analyzed by reverse-transcription polymerase chain reaction and Western hybridization. Dentin mineralization was determined by alizarin red stain and alkaline phosphatase activity assay. RESULTS Pulp cells treated with long-term H(2)O(2) showed high reactive oxygen species formation, low cell viability, down-expression of antioxidant molecules (Cu/Zn and Mn superoxide dismutase), and odontogenic/osteogenic markers (eg, dentin sialophosphoprotein, dentin matrix protein-1, osteopontin, bone sialoprotein, Runx-2, and bone morphogenetic protein 2 and 7). In addition, pulp cells with oxidative stress underwent the activation of ERK1/2, activator protein-1, and nuclear factor-κB translocation to the nucleus. However, the PPARγ-overexpressed cells gave opposite results although under oxidative stress. Furthermore, PPARγ and its agonist rosiglitazone exhibited an induction of dentin mineralization under oxidative stress. CONCLUSIONS PPARγ in pulp cells increases cell viability, odontoblastic differentiation, and dentin mineralization under oxidative stress. These results offer new insights into the potential antioxidative activity of PPARγ and its agonist for therapeutic agents for pulp vitality in HDPCs.
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Vitti RP, Prati C, Sinhoreti MAC, Zanchi CH, Souza e Silva MG, Ogliari FA, Piva E, Gandolfi MG. Chemical–physical properties of experimental root canal sealers based on butyl ethylene glycol disalicylate and MTA. Dent Mater 2013; 29:1287-94. [DOI: 10.1016/j.dental.2013.10.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 07/17/2013] [Accepted: 10/07/2013] [Indexed: 11/28/2022]
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Varalakshmi PR, Kavitha M, Govindan R, Narasimhan S. Effect of Statins with α-Tricalcium Phosphate on Proliferation, Differentiation, and Mineralization of Human Dental Pulp Cells. J Endod 2013; 39:806-12. [DOI: 10.1016/j.joen.2012.12.036] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Revised: 12/24/2012] [Accepted: 12/30/2012] [Indexed: 01/02/2023]
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The role of thymosin beta 4 on odontogenic differentiation in human dental pulp cells. PLoS One 2013; 8:e61960. [PMID: 23613983 PMCID: PMC3629154 DOI: 10.1371/journal.pone.0061960] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Accepted: 03/15/2013] [Indexed: 02/01/2023] Open
Abstract
We recently reported that overexpression of thymosin beta-4 (Tβ4) in transgenic mice promotes abnormal hair growth and tooth development, but the role of Tβ4 in dental pulp regeneration was not completely understood. The aim of this study was to investigate the role of Tβ4 on odontoblastic differentiation and the underlying mechanism regulating pulp regeneration in human dental pulp cells (HDPCs). Our results demonstrate that mRNA and protein expression of Tβ4 is upregulated during odontogenic differentiation in HDPCs. Transfection with Tβ4 siRNA decreases OM-induced odontoblastic differentiation by decreasing alkaline phosphatase (ALP) activity, mRNA expression of differentiation markers, and calcium nodule formation. In contrast, Tβ4 activation with a Tβ4 peptide promotes these processes by enhancing the phosphorylation of p38, JNK, and ERK mitogen-activated protein kinases (MAPKs), bone morphogenetic protein (BMP) 2, BMP4, phosphorylation of Smad1/5/8 and Smad2/3, and expression of transcriptional factors such as Runx2 and Osterix, which were blocked by the BMP inhibitor noggin. The expression of integrin receptors α1, α2, α3, and β1 and downstream signaling molecules including phosphorylated focal adhesion kinase (p-FAK), p-paxillin, and integrin-linked kinase (ILK) were increased by Tβ4 peptide in HDPCs. ILK siRNA blocked Tβ4-induced odontoblastic differentiation and activation of the BMP and MAPK transcription factor pathways in HDPCs. In conclusion, this study demonstrates for the first time that Tβ4 plays a key role in odontoblastic differentiation of HDPCs and activation of Tβ4 could provide a novel mechanism for regenerative endodontics.
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Aging of In Vitro Pulp Illustrates Change of Inflammation and Dentinogenesis. J Endod 2013; 39:340-5. [DOI: 10.1016/j.joen.2012.10.031] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2012] [Revised: 10/11/2012] [Accepted: 10/18/2012] [Indexed: 11/23/2022]
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Saghiri MA, Asgar K, Lotfi M, Karamifar K, Saghiri AM, Neelakantan P, Gutmann JL, Sheibaninia A. Back-scattered and secondary electron images of scanning electron microscopy in dentistry: a new method for surface analysis. Acta Odontol Scand 2012; 70:603-9. [PMID: 22251068 DOI: 10.3109/00016357.2011.645057] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE A scanning electron microscope (SEM) is a popular tool for investigating the root canal surface to visualize dentinal tubules, the smear layer and various root canal filling materials in endodontics. Most of the SEM micrographs taken in endodontic research are in secondary electrons (SE) mode, in which the topographic view of a subject can be demonstrated without giving any information about the real structure. Back-scattered electron (BSE) images are also used, which reveal some information about the internal structure while providing no topographic details. The aim of this study was to investigate the possibility of using back-scattered (BSE) and secondary electron (SE) mode of scanning electron microscopy (SEM) together for obtaining detailed information about biomaterials in relation to dental structures. MATERIALS AND METHODS Mesiobuccal roots of four permanent maxillary molars were cleaned and shaped with rotary instruments. Two samples were obturated with gutta-percha and sealer. After 2 weeks, gutta-perch was removed using rotary instruments and chloroform. In the other phase of the study, white mineral trioxide aggregate was mixed and packed into five glass tubes and exposed to blood, deionized water, synthetic tissue fluid and egg white. All the samples were prepared for visualization under SE and BSE modes of SEM to observe the characteristics of material remnants and surface structures. RESULTS BSE mode illustrated different grey scale views which made it possible to differentiate dentin chips from filling material remnants on the surface of root canal dentin. In addition, SE mode focused on image topography, while a BSE detector showed new texture formation on the surface of white mineral trioxide aggregate exposed to proteinaceous fluids such as blood or egg white. CONCLUSIONS Mapping BSE and SE micrographs helped us to better understand the structure of materials on the surface of root canal dentin and MTA. Moreover, analysis of structure of materials on the surface of root canal dentine and MTA can be performed better by mapping of BSE and SE micrographs.
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Affiliation(s)
- Mohammad Ali Saghiri
- Department of Dental Material, Dental Branch, Islamic Azad University, Tehran, Iran.
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Lee YH, Lee NH, Bhattarai G, Kim GE, Lee IK, Yun BS, Hwang PH, Yi HK. Anti-inflammatory effect of pachymic acid promotes odontoblastic differentiation via HO-1 in dental pulp cells. Oral Dis 2012; 19:193-9. [DOI: 10.1111/j.1601-0825.2012.01970.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2012] [Revised: 06/04/2012] [Accepted: 06/15/2012] [Indexed: 01/09/2023]
Affiliation(s)
- Y-H Lee
- Department of Oral Biochemistry; BK21 program; Jeonju Korea
| | - N-H Lee
- Department of Oral Biochemistry; BK21 program; Jeonju Korea
| | - G Bhattarai
- Department of Oral Biochemistry; BK21 program; Jeonju Korea
| | - G-E Kim
- Department of Oral Biochemistry; BK21 program; Jeonju Korea
| | - I-K Lee
- Division of Biotechnology; College of Environmental & Biosource Science; Jeonju Korea
| | - B-S Yun
- Division of Biotechnology; College of Environmental & Biosource Science; Jeonju Korea
| | - P-H Hwang
- Department of Pediatrics; School of Medicine; Chonbuk National University; Jeonju Korea
| | - H-K Yi
- Department of Oral Biochemistry; BK21 program; Jeonju Korea
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Kim JJ, Kim SJ, Kim YS, Kim SY, Park SH, Kim EC. The Role of SIRT1 on Angiogenic and Odontogenic Potential in Human Dental Pulp Cells. J Endod 2012; 38:899-906. [DOI: 10.1016/j.joen.2012.04.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Revised: 04/06/2012] [Accepted: 04/10/2012] [Indexed: 01/09/2023]
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Wheater MA, Falvo J, Ruiz F, Byars M. Chlorhexidine, ethanol, lipopolysaccharide and nicotine do not enhance the cytotoxicity of a calcium hydroxide pulp capping material. Int Endod J 2012; 45:989-95. [DOI: 10.1111/j.1365-2591.2012.02057.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Salles LP, Gomes-Cornélio AL, Guimarães FC, Herrera BS, Bao SN, Rossa-Junior C, Guerreiro-Tanomaru JM, Tanomaru-Filho M. Mineral trioxide aggregate-based endodontic sealer stimulates hydroxyapatite nucleation in human osteoblast-like cell culture. J Endod 2012; 38:971-6. [PMID: 22703663 DOI: 10.1016/j.joen.2012.02.018] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2011] [Revised: 02/21/2012] [Accepted: 02/22/2012] [Indexed: 10/28/2022]
Abstract
INTRODUCTION The main purpose of this study was to evaluate the biocompatibility and bioactivity of a new mineral trioxide aggregate (MTA)-based endodontic sealer, MTA Fillapex (MTA-F; Angelus, Londrina, Brazil), in human cell culture. METHODS Human osteoblast-like cells (Saos-2) were exposed for 1, 2, 3, and 7 days to MTA-F, Epiphany SE (EP-SE; SybronEndo, Orange, CA), and zinc oxide-eugenol sealer (ZOE). Unexposed cultures were the control group (CT). The viability of the cells was assessed by MTT assay and the morphology by scanning electron microscopy (SEM). The bioactivity of MTA-F was evaluated by alkaline phosphatase activity (ALP) and the detection of calcium deposits in the culture with alizarin red stain (ARS). Energy-dispersive X-ray spectroscopy (EDS) was used to chemically characterize the hydroxyapatite crystallites (HAP). Saos-2 cells were cultured for 21 days for ARS and SEM/EDS. ARS results were expressed as the number of stained nodules per area. Statistical analysis was performed with analysis of variance and Bonferroni tests (P < .01). RESULTS MTA-F exposure for 1, 2, and 3 days resulted in increased cytotoxicity. In contrast, viability increased after 7 days of exposure to MTA-F. Exposure to EP-SE and ZOE was cytotoxic at all time points. At day 7, ALP activity increase was significant in the MTA-F group. MTA-F presented the highest percentage of ARS-stained nodules (MTA-F > CT > EP-SE > ZOE). SEM/EDS analysis showed hydroxyapatite crystals only in the MTA-F and CT groups. In the MTA-F group, crystallite morphology and chemical composition were different from CT. CONCLUSIONS After setting, the cytotoxicity of MTA-F decreases and the sealer presents suitable bioactivity to stimulate HAP crystal nucleation.
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Affiliation(s)
- Loise Pedrosa Salles
- Department of Restorative Dentistry, Dental School of São Paulo State University, Araraquara, São Paulo, Brazil
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