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Gandolfi MG, Taddei P, Modena E, Siboni F, Prati C. Biointeractivity-related versus chemi/physisorption-related apatite precursor-forming ability of current root end filling materials. J Biomed Mater Res B Appl Biomater 2013; 101:1107-23. [DOI: 10.1002/jbm.b.32920] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 01/23/2013] [Accepted: 01/30/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Maria Giovanna Gandolfi
- Laboratory of Biomaterials and Oral Pathology; Unit of Odontostomatological Sciences, Department of Biomedical and NeuroMotor Sciences, University of Bologna; Bologna Italy
| | - Paola Taddei
- Unit of Biochemistry; Department of Biomedical and NeuroMotor Sciences; University of Bologna; Bologna Italy
| | - Enrico Modena
- Unit of Biochemistry; Department of Biomedical and NeuroMotor Sciences; University of Bologna; Bologna Italy
| | - Francesco Siboni
- Laboratory of Biomaterials and Oral Pathology; Unit of Odontostomatological Sciences, Department of Biomedical and NeuroMotor Sciences, University of Bologna; Bologna Italy
| | - Carlo Prati
- Endodontic Clinical Section (Unit of Odontostomatological Sciences); Department of Biomedical and NeuroMotor Sciences; University of Bologna; Bologna Italy
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Suto M, Nemoto E, Kanaya S, Suzuki R, Tsuchiya M, Shimauchi H. Nanohydroxyapatite increases BMP-2 expression via a p38 MAP kinase dependent pathway in periodontal ligament cells. Arch Oral Biol 2013; 58:1021-8. [PMID: 23518236 DOI: 10.1016/j.archoralbio.2013.02.014] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Revised: 01/18/2013] [Accepted: 02/28/2013] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Bone morphogenetic protein (BMP)-2 promotes the osteoblastic differentiation of human periodontal ligament (PDL) cells, which play a pivotal role in periodontal regeneration. Recently, nano-sized hydroxyapatite (nano-HA) has been highlighted due to its advantageous features over micro-sized materials. DESIGN AND RESULTS We investigated the effect of nano-HA on BMP-2 expression in human PDL cells. Real time PCR analysis revealed that the expression of BMP-2 increased upon stimulation with nano-HA in dose- and time-dependent manners. An immunofluorescence assay demonstrated the synthesis of BMP-2 proteins. Concentrations of Ca(2+) as well as phosphate (Pi) in culture supernatants were unchanged, suggesting that nano-HA functioned as a nanoparticle rather than as a possible source for releasing Ca(2+) and/or Pi extracellularly, which were shown to also enhance the expression of BMP-2. Nano-HA-induced BMP-2 expression was dependent on the p38 MAP kinase pathway because increases in BMP-2 expression were inhibited by treatment with SB203580, a p38 inhibitor, and phosphorylation of p38 was detected by Western blotting. CONCLUSIONS This novel mechanism of nano-HA will be important for the rational design of future periodontal regeneration.
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Affiliation(s)
- Mizuki Suto
- Division of Periodontology and Endodontology, Tohoku University, Graduate School of Dentistry, Sendai 980-8575, Japan
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53
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Katsamakis S, Slot DE, Van der Sluis LWM, Van der Weijden F. Histological responses of the periodontium to MTA: a systematic review. J Clin Periodontol 2013; 40:334-44. [DOI: 10.1111/jcpe.12058] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Revised: 12/01/2012] [Accepted: 12/05/2012] [Indexed: 11/30/2022]
Affiliation(s)
- Sokratis Katsamakis
- Department of Periodontology; Academic Center for Dentistry (ACTA); University of Amsterdam and VU University Amsterdam; Amsterdam The Netherlands
| | - Dagmar Else Slot
- Department of Periodontology; Academic Center for Dentistry (ACTA); University of Amsterdam and VU University Amsterdam; Amsterdam The Netherlands
| | - Luc W. M. Van der Sluis
- Department of Conservative Dentistry and Endodontics; Faculty of Dentistry; Paul Sabatier University; Toulouse France
| | - Fridus Van der Weijden
- Department of Periodontology; Academic Center for Dentistry (ACTA); University of Amsterdam and VU University Amsterdam; Amsterdam The Netherlands
- Clinic for Periodontology; Utrecht The Netherlands
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54
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Matsumoto S, Hayashi M, Tanabe N, Suzuki Y, Kobayashi Y, Kobayashi H, Suzuki N, Maeno M, Ogiso B. Calcium Ions Released from Mineral Trioxide Aggregate are Taken Up by C2C12 Cells via the L-Type Voltage-Dependent Calcium Channel. J HARD TISSUE BIOL 2013. [DOI: 10.2485/jhtb.22.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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55
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56
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Yamamoto N, Maeda H, Tomokiyo A, Fujii S, Wada N, Monnouchi S, Kono K, Koori K, Teramatsu Y, Akamine A. Expression and effects of glial cell line-derived neurotrophic factor on periodontal ligament cells. J Clin Periodontol 2012; 39:556-64. [PMID: 22512503 DOI: 10.1111/j.1600-051x.2012.01881.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/18/2012] [Indexed: 12/15/2022]
Abstract
AIM To investigate Glial cell line-derived neurotrophic factor (GDNF) expression in normal and wounded rat periodontal ligament (PDL) and the effects of GDNF on human PDL cells (HPDLCs) migration and extracellular matrix expression in HPDLCs. MATERIAL AND METHODS The expression of GDNF and GDNF receptors was examined by immunocyto/histochemical analyses. Gene expression in HPDLCs treated with GDNF, interleukin-1 beta (IL-1β), or tumour necrosis factor-alpha (TNF-α) was quantified by quantitative RT-PCR (qRT-PCR). In addition, we examined the migratory effect of GDNF on HPDLCs. RESULTS GDNF was expressed in normal rat PDL and cultured HPDLCs. HPDLCs also expressed GDNF receptors. In wounded rat PDL, GDNF expression was up-regulated. QRT-PCR analysis revealed that IL-1β and TNF-α significantly increased the expression of GDNF in HPDLCs. Furthermore, GDNF induced migration of HPDLCs, which was blocked by pre-treatment with the peptide including Arg-Gly-Asp (RGD) sequence, or neutralizing antibodies against integrin αVβ3 or GDNF. Also, GDNF up-regulated expression of bone sialoprotein (BSP) and fibronectin in HPDLCs. CONCLUSIONS GDNF expression is increased in rat wounded PDL tissue and HPDLCs treated with pro-inflammatory cytokines. GDNF enhances the expression of BSP and fibronectin, and migration in an RGD-dependent manner via the integrin αVβ3. These findings suggest that GDNF may contribute to wound healing in PDL tissue.
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Affiliation(s)
- Naohide Yamamoto
- Department of Endodontology and Operative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Higashi-ku, Japan
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57
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Kum KY, Zhu Q, Safavi K, Gu Y, Bae KS, Chang SW. Analysis of six heavy metals in Ortho mineral trioxide aggregate and ProRoot mineral trioxide aggregate by inductively coupled plasma-optical emission spectrometry. AUST ENDOD J 2012; 39:126-30. [PMID: 24279659 DOI: 10.1111/j.1747-4477.2012.00349.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ortho mineral trioxide aggregate (MTA) is a mineral aggregate newly developed for perforation repair, root end filling and pulp capping. The aim of this study was to investigate the levels of cadmium (Cd), copper (Cu), iron (Fe), manganese (Mn), nickel (Ni) and zinc (Zn) in Ortho MTA and ProRoot MTA. A total of 0.2 g of each MTA was digested using a mixture of hydrochloric and nitric acids and filtered. Six heavy metals in the resulting filtrates were analyzed by inductively coupled plasma-optical emission spectrometry (n = 5). The results were statistically analyzed using the Mann-Whitney U-test. The concentrations of Cd, Cu, Fe, Mn, Ni and Zn in Ortho MTA were 0.10, 7.73, 49.51, 2.58, 0.82 and 10.09 p.p.m., respectively. The concentrations of Cd, Cu, Fe, Mn, Ni and Zn in ProRoot MTA were 0.16, 9.38, 1438.11, 74.51, 18.98 and 4.05 p.p.m., respectively. In conclusion, Ortho MTA had lower levels of Cd, Cu, Fe, Mn and Ni than ProRoot MTA.
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Affiliation(s)
- Kee-Yeon Kum
- Department of Conservative Dentistry, Dental Research Institute, Seoul National University Dental Hospital, Seoul National University School of Dentistry, Seoul, Korea Department of Endodontology, School of Dental Medicine, University of Connecticut Health Center, Farmington, Connecticut, USA Department of Conservative Dentistry, Institute of Oral Health Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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58
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OGATA H, HAYASHI M, TSUDA H, SUZUKI N, MAENO M, SUGAWARA A, OGISO B. Effects of a calcium phosphate cement on mineralized nodule formation compared with endodontic cements. Dent Mater J 2012; 31:92-7. [DOI: 10.4012/dmj.2011-151] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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59
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Chang SW, Baek SH, Yang HC, Seo DG, Hong ST, Han SH, Lee Y, Gu Y, Kwon HB, Lee W, Bae KS, Kum KY. Heavy Metal Analysis of Ortho MTA and ProRoot MTA. J Endod 2011; 37:1673-6. [DOI: 10.1016/j.joen.2011.08.020] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Revised: 08/22/2011] [Accepted: 08/30/2011] [Indexed: 10/17/2022]
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60
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Alpha-TCP improves the apatite-formation ability of calcium-silicate hydraulic cement soaked in phosphate solutions. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2011. [DOI: 10.1016/j.msec.2011.05.012] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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61
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Asgary S, Ehsani S. MTA resorption and periradicular healing in an open-apex incisor: A case report. Saudi Dent J 2011; 24:55-9. [PMID: 23960529 DOI: 10.1016/j.sdentj.2011.08.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2011] [Revised: 06/21/2011] [Accepted: 08/18/2011] [Indexed: 11/30/2022] Open
Abstract
This case report describes the periradicular healing and resorption of an unintentional extrusion of mineral trioxide aggregate (MTA) in an open-apex central incisor. A 22-year old female with a symptomatic open-apex right maxillary central incisor associated with a periradicular lesion was referred for evaluation and treatment. After chemomechanical debridement, the apical third of the root canal was filled with MTA to create an apical plug. Postoperative radiographs showed the extrusion of MTA into the periradicular lesion. The tooth was then restored with a post and crown. At the 2-year follow-up, the tooth was asymptomatic and radiographs revealed complete healing of the periradicular area. At the 7-year follow-up, complete resorption of the extruded MTA was evident. The results of this case study indicate that complete resorption of extruded MTA is possible in the long term; however, the extrusion of MTA in open-apex tooth should still be avoided.
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Affiliation(s)
- Saeed Asgary
- Iranian Center for Endodontic Research, Dental Research Center, Dental School, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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62
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63
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Zhao X, He W, Song Z, Tong Z, Li S, Ni L. Mineral trioxide aggregate promotes odontoblastic differentiation via mitogen-activated protein kinase pathway in human dental pulp stem cells. Mol Biol Rep 2011; 39:215-20. [PMID: 21559841 DOI: 10.1007/s11033-011-0728-z] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2010] [Accepted: 04/23/2011] [Indexed: 01/09/2023]
Abstract
Mitogen-activated protein kinase (MAPK) pathways are involved in stem cell differentiation. However, the odontoblastic differentiation-inducing effects by mineral trioxide aggregate (MTA) via MAPK pathways have not been clarified in human dental pulp stem cells (DPSCs). In this study we investigated the effects of MTA on cell viability and production of differentiation markers, and the involvement of MAPK signaling pathways in cultured human DPSCs. Cells were cultured with MTA, and the viability and differentiation productions of the cells were determined using the MTT assay and real-time PCR analysis, respectively. MAPK activation was measured by western blotting. MTA at concentrations of 20 and 10 mg/ml was toxic for human DPSCs. MTA significantly increased the expression of alkaline phosphatase (ALP), dentin sialophosphoprotein (DSPP), type I collagen (COLI), osteocalcin (OCN) and bone sialoprotein (BSP) mRNAs and induced the phosphorylation of p42 and p44 (p42/44), p38 and c-Jun N-terminal kinases 1 and 2 (JNK1/2) MAPK. Furthermore, the inhibitor of p42/44 MAPK attenuated the MTA-induced odontoblastic differentiation. These data indicated that MTA-induced odontoblastic differentiation of human DPSCs was via MAPK pathways, which may play a key role in the repair responses of dentin-pulp-like complexes.
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Affiliation(s)
- Xiu Zhao
- Department of Operative Dentistry & Endodontics, School of Stomatology, Fourth Military Medical University, and Department of Hepatobiliary Surgery, Xijing Hospital, Xi'an, 710032, People's Republic of China
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Hashiguchi D, Fukushima H, Yasuda H, Masuda W, Tomikawa M, Morikawa K, Maki K, Jimi E. Mineral trioxide aggregate inhibits osteoclastic bone resorption. J Dent Res 2011; 90:912-7. [PMID: 21531916 DOI: 10.1177/0022034511407335] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Mineral trioxide aggregate (MTA), a commonly used endodontic repair material, is useful for both basic and clinical research, and the effect of MTA on osteoblast differentiation has been well-defined. However, the effects of MTA on osteoclastic bone resorption are not fully understood. Hence, the aim of this study is to examine the effect of MTA solution in the regulation of osteoclast bone-resorbing activity using osteoclasts formed in co-cultures of primary osteoblasts and bone marrow cells. MTA solution dose-dependently reduced the total area of pits formed by osteoclasts. The reduction of resorption induced by 20% MTA treatment was due to inhibition of osteoclastic bone-resorbing activity and had no effect on osteoclast number. A 20% MTA solution disrupted actin ring formation, a marker of osteoclastic bone resorption, by reducing phosphorylation and kinase activity of c-Src, and mRNA expressions of cathepsin K and mmp-9. A high concentration of MTA solution (50%) induced apoptosis of osteoclasts by increasing the expression of Bim, a member of the BH3-only (Bcl-2 homology) family of pro-apoptotic proteins. Taken together, our results suggest that MTA is a useful retrofilling material for several clinical situations because it both stimulates osteoblast differentiation and inhibits bone resorption.
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Affiliation(s)
- D Hashiguchi
- Division of Molecular Signaling and Biochemistry, Department of Biosciences, Center for Oral Biological Research, Kyushu Dental College, Fukuoka, Japan
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Heward S, Sedgley CM. Effects of intracanal mineral trioxide aggregate and calcium hydroxide during four weeks on pH changes in simulated root surface resorption defects: an in vitro study using matched pairs of human teeth. J Endod 2011; 37:40-4. [PMID: 21146074 DOI: 10.1016/j.joen.2010.09.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2010] [Revised: 08/29/2010] [Accepted: 09/19/2010] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Diffusion of hydroxyl ions from intracanal calcium hydroxide (CH) through dentin is used to arrest external inflammatory root resorption. However, long-term and short-term CH placement has been associated with an increased risk of root fracture. Intracanal mineral trioxide aggregate (MTA) might provide an alternative to CH as a source of hydroxyl ions. This in vitro study compared the effects of intracanal MTA and CH on hydroxyl ion diffusion through dentin by measuring pH changes over time in simulated root surface resorption defects prepared in matched pairs of teeth; the null hypothesis tested was that there is no difference. METHODS Root surface cavities were prepared 5 mm from the apex in extracted human permanent anterior teeth (21 matched pairs) and 7 additional teeth (controls). Root canals were instrumented to size 50/.04 and filled with either tooth-colored MTA (ProRoot) or CH (UltraCal XS); control teeth were filled with saline. The pH in root surface cavities was measured at 3 hours, 24 hours, 1 week, 2 weeks, 3 weeks, and 4 weeks. RESULTS In controls, pH readings did not differ significantly during the 4 weeks (P > .05, repeated-measures analysis of variance [ANOVA]). For the experimental intragroup effects, significant pH changes occurred over time in the MTA group (P = .005, repeated-measures ANOVA) and the CH group (P < .0001). For the experimental intergroup effects, the overall mean pH was higher in the MTA group (8.66; standard error [SE], 0.07) compared with the CH group (8.46; SE, 0.07) (P = .014, paired t test). At 4 weeks pH was higher in the MTA group (8.30; SE, 0.16) compared with the CH group (7.90; SE, 0.11) (P = .011); at all other time points intergroup differences were insignificant. The null hypothesis was rejected. CONCLUSIONS Intracanal MTA and CH groups differed in their overall effect on pH measured in simulated root surface resorption defects. At 4 weeks intracanal placement of MTA compared with CH resulted in a small but significantly higher pH.
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Affiliation(s)
- Sarah Heward
- Department of Endodontology, School of Dentistry, Oregon Health & Science University, Portland, OR 97239, USA
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66
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Monnouchi S, Maeda H, Fujii S, Tomokiyo A, Kono K, Akamine A. The Roles of Angiotensin II in Stretched Periodontal Ligament Cells. J Dent Res 2011; 90:181-5. [DOI: 10.1177/0022034510382118] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The loading caused by occlusion and mastication plays an important role in maintaining periodontal ligament (PDL) tissues. We hypothesized that a loading magnitude would be involved in the production of biological factors that function in the maintenance of PDL tissues. Here, we identified up-regulated gene expressions of transforming growth factor-β1 (TGF-β1), alkaline phosphatase (ALP), and angiotensinogen in human PDL fibroblastic cells (HPLFs) that were exposed to 8% stretch loading. Immunolocalization of angiotensin I/II (Ang I/II), which was converted from angiotensinogen, was detected in rat PDL tissues. HPLFs that were stimulated by Ang II also increased their gene expressions of TGF-β1 and ALP. Furthermore, the antagonist for Ang II type 2 receptor, rather than for type 1, significantly inhibited gene expressions induced by the stretch loading. Analysis of these data suggests that Ang II mediates the loading signal in stretched HPLFs to induce expressions of TGF-β1 and ALP.
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Affiliation(s)
- S. Monnouchi
- Division of Oral Rehabilitation, Department of Endodontology and Operative Dentistry, Faculty of Dental Science, Kyushu University
| | - H. Maeda
- Department of Endodontology, Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - S. Fujii
- Department of Endodontology, Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - A. Tomokiyo
- Division of Oral Rehabilitation, Department of Endodontology and Operative Dentistry, Faculty of Dental Science, Kyushu University
| | - K. Kono
- Division of Oral Rehabilitation, Department of Endodontology and Operative Dentistry, Faculty of Dental Science, Kyushu University
| | - A. Akamine
- Division of Oral Rehabilitation, Department of Endodontology and Operative Dentistry, Faculty of Dental Science, Kyushu University
- Department of Endodontology, Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
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Maeda H, Tomokiyo A, Koori K, Monnouchi S, Fujii S, Wada N, Kono K, Yamamoto N, Saito T, Akamine A. An in vitro evaluation of two resin-based sealers on proliferation and differentiation of human periodontal ligament cells. Int Endod J 2011; 44:425-31. [DOI: 10.1111/j.1365-2591.2010.01845.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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68
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Hashiguchi D, Fukushima H, Nakamura M, Morikawa K, Yasuda H, Udagawa N, Maki K, Jimi E. Mineral trioxide aggregate solution inhibits osteoclast differentiation through the maintenance of osteoprotegerin expression in osteoblasts. J Biomed Mater Res A 2010; 96:358-64. [DOI: 10.1002/jbm.a.32990] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2010] [Revised: 09/29/2010] [Accepted: 10/05/2010] [Indexed: 11/06/2022]
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69
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Effects of TGF-β1 on the proliferation and differentiation of human periodontal ligament cells and a human periodontal ligament stem/progenitor cell line. Cell Tissue Res 2010; 342:233-42. [DOI: 10.1007/s00441-010-1037-x] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2010] [Accepted: 08/16/2010] [Indexed: 10/19/2022]
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