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Khatri S, Mathew S, Nagaraja S, Hegde S, Ghosh S, Ravichandran K. Comparative evaluation of pH and Ca + ion release from MTA on interaction with platelet-rich fibrin and blood clot: an in vitro study. F1000Res 2023; 12:364. [PMID: 37994352 PMCID: PMC10663652 DOI: 10.12688/f1000research.130227.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/25/2023] [Indexed: 11/24/2023] Open
Abstract
Background: 'Regenerative endodontics' using host-derived scaffolds and biomaterials (MTA) is popular in the management of teeth with open apex. Alkaline pH and bioactivity contribute to tissue healing and remineralization. We assessed the influence of PRF and Blood Clot on the pH and Ca + ion release from MTA. Methods: A total of 15 single-rooted human extracted teeth were sectioned at the level of the cementoenamel junction. Based on the type of scaffolds used, samples were divided into three groups. Group 1 (MTA+ PRF), Group 2 (MTA + Blood Clot), Group 3 (control MTA). The prepared specimens were transferred to a fresh falcon tube containing 10mL of distilled water and the collected solutions were analysed for pH and Ca + ion release at 3h, seventh day and 14 th day. Results: It was observed that the mean pH and Ca + ion release were significantly lower in the experimental groups as compared to the control group. Though there was an increase in the pH recorded in Group 1 and 2 at all time periods, the difference was not significant. Ca + ion release peaked at Day 7 (Group3 > Group2 > Group1) and reduced significantly on the 14 th day for all groups. Conclusions: Within the limitations of the study, it can be concluded that PRF and blood clot influence the pH and Ca + ion release from MTA.
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Affiliation(s)
- Sonia Khatri
- Conservative Dentistry and Endodontics, Faculty of Dental Sciences, Ramaiah University of Applied Sciences, Bangalore, Karnataka, 560054, India
| | - Sylvia Mathew
- Conservative Dentistry and Endodontics, Faculty of Dental Sciences, Ramaiah University of Applied Sciences, Bangalore, Karnataka, 560054, India
| | - Shruthi Nagaraja
- Conservative Dentistry and Endodontics, Faculty of Dental Sciences, Ramaiah University of Applied Sciences, Bangalore, Karnataka, 560054, India
| | - Swaroop Hegde
- Conservative Dentistry and Endodontics, Faculty of Dental Sciences, Ramaiah University of Applied Sciences, Bangalore, Karnataka, 560054, India
| | - Soumyadeep Ghosh
- Conservative Dentistry and Endodontics, Manipal College of Dental Sciences, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Kavimalar Ravichandran
- Conservative Dentistry and Endodontics, Sri Ramakrishna Dental College and Hospital, Coimbatore, Coimbatore, Tamil Nadu, India
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雷 玥, 杨 颖, 战 园. [Evaluation of bioceramic putty repairment in primary molars pulpotomy]. BEIJING DA XUE XUE BAO. YI XUE BAN = JOURNAL OF PEKING UNIVERSITY. HEALTH SCIENCES 2019; 51:70-74. [PMID: 30773547 PMCID: PMC7433541 DOI: 10.19723/j.issn.1671-167x.2019.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To evaluate the clinical characteristics and effectiveness of bioceramic putty repairment (iroot BP Plus) used as pulp capping agents on pulpotomy in primary molars. METHODS Forty primary molars were treated by pulpotomy with bioceramic putty repairmen as the pulp capping agents at the Third Clinical Division of Peking University School and Hospital of Stomatology, from September 2016 to September 2017. The children who were followed up over one year were selected as the subjects of this study. The teeth were checked clinically and radiographically during fixed intervals, and classified into one of five outcomes: N, H, P0, PX, PY. N, absence of clinical symptoms, and absence of apical radiolucency; H, absence of clinical symptoms, and nonpathologic radiographic change present; P0, absence of clinical symptoms, and pathologic change present, no need for treatment; PX, present or absence of clinical symptoms, pathologic change present treatment or extract immediately; PY, premature loss of deciduous tooth. Molars classified into N and H were regarded as successful, classified into P0, PX and PY were regarded as failed. RESULTS Followed up for 12-24 months (the average follow up time was 16months), thirty four children were finally included, aged from 3.1 years to 8.5 yaers (the average age was 4.3 years), forty primary molars were included. Thirty four primary molars were included into N group, with absence of clinical symptoms, absence of apical radiolucency. Two molars were included into H group with physiological root absorption. One molar was included into P0group with absence of clinical symptoms butinternal absorption of the root. Three molars were included into PX group, with gingival fistula and apical radiolucency. None was included into PY group. Thirty six teeth got successful treatment, four molars failed. One year success rate of pulpotomy of primary molars using bioceramic putty repairment was 95%. CONCLUSION Current evidence suggests that bioceramic putty repairment as a pulpotomy medicament showed satisfied clinical and radiographic result in pulpotomy of primary molars. Bioceramic putty repairment is an acceptable material when used in pulpotomy of primary molars.
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Affiliation(s)
- 玥 雷
- />北京大学口腔医学院·口腔医院,第三门诊部 国家口腔疾病临床医学研究中心 口腔数字化医疗技术和材料国家工程实验室 口腔数字医学北京市重点实验室,北京 100083Third Clinical Division, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100083, China
| | - 颖婷 杨
- />北京大学口腔医学院·口腔医院,第三门诊部 国家口腔疾病临床医学研究中心 口腔数字化医疗技术和材料国家工程实验室 口腔数字医学北京市重点实验室,北京 100083Third Clinical Division, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100083, China
| | - 园 战
- />北京大学口腔医学院·口腔医院,第三门诊部 国家口腔疾病临床医学研究中心 口腔数字化医疗技术和材料国家工程实验室 口腔数字医学北京市重点实验室,北京 100083Third Clinical Division, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100083, China
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Cerda-Cristerna BI, Breceda-Leija A, Méndez-González V, Chavarría-Bolaños D, Flores-Reyes H, Garrocho-Rangel A, Komabayashi T, Wadajkar AS, Pozos-Guillén AJ. Sustained release of calcium hydroxide from poly(DL-lactide-co-glycolide) acid microspheres for apexification. Odontology 2015; 104:318-23. [PMID: 26175086 DOI: 10.1007/s10266-015-0213-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 05/01/2015] [Indexed: 11/27/2022]
Abstract
Calcium hydroxide (CH) loaded poly(DL-lactide-co-glycolide) acid (PLGA) microspheres (MS) might be used for apexification requiring a sustained release of Ca(2+). The aim of this study was to formulate and characterize CH-PLGA-MS. The CH-loaded MS were prepared by either oil-in-water (O/W) or water-in-oil/in-water (W/O/W) emulsion solvent evaporation technique. MS produced by the O/W technique exhibited a larger diameter (18.63 ± 7.23 μm) than the MS produced by the W/O/W technique (15.25 ± 7.37 μm) (Mann-Whitney U test P < 0.001). The CH encapsulation efficiency (E e) and Ca(2+) release were calculated from data obtained by absorption techniques. Ca(2+) release profile was evaluated for 30 days. To know the E e, the CH-loaded MS were dissolved in 1 M NaOH to release all its content and a Ca(2+) colorimetric marker was added to this solution. The reagent marked the Ca(2+) in blue color, which was then measured by a UV-Vis system (650 nm). The percentage of E e was calculated on the basis of the theoretical loading. The E e of the O/W-produced MS was higher (24 %) than the corresponding percentage of the W/O/W-produced MS (11 %). O/W- and W/O/W-produced MS released slower and lower Ca(2+) than a control CH paste with polyethylene glycol 400 (Kruskal-Wallis test). O/W-produced MS released higher Ca(2+) than W/O/W-produced MS (statistically significant differences; P < 0.05). In conclusion, the CH-PLGA-MS were successfully formulated; the technique of formulation influenced the size, encapsulation efficiency and release profile. The MS were better sustained release system than the CH paste.
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Affiliation(s)
- Bernardino Isaac Cerda-Cristerna
- Postgraduate Endodontics Program, Faculty of Dentistry, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava #2, Zona Universitaria, CP 78290, San Luis Potosí, SLP, Mexico.
| | - Alejandro Breceda-Leija
- Postgraduate Endodontics Program, Faculty of Dentistry, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava #2, Zona Universitaria, CP 78290, San Luis Potosí, SLP, Mexico
| | - Verónica Méndez-González
- Postgraduate Endodontics Program, Faculty of Dentistry, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava #2, Zona Universitaria, CP 78290, San Luis Potosí, SLP, Mexico
| | - Daniel Chavarría-Bolaños
- Diagnostic and Surgical Sciences Deparment, Faculty of Dentistry, Universidad de Costa Rica, San José, Costa Rica
| | - Héctor Flores-Reyes
- Postgraduate Endodontics Program, Faculty of Dentistry, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava #2, Zona Universitaria, CP 78290, San Luis Potosí, SLP, Mexico
| | - Arturo Garrocho-Rangel
- Postgraduate Pediatrics Dentistry Program, Universidad Autónoma de San Luis Potosí, San Luis Potosí, San Luis Potosí, Mexico
| | | | - Aniket S Wadajkar
- Department of Neurosurgery, School of Medicine, University of Maryland, Bressler Research Building, Baltimore St, College Park, MD, USA
| | - Amaury J Pozos-Guillén
- Postgraduate Endodontics Program, Faculty of Dentistry, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava #2, Zona Universitaria, CP 78290, San Luis Potosí, SLP, Mexico
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Naidu S, Scherer GW. Nucleation, growth and evolution of calcium phosphate films on calcite. J Colloid Interface Sci 2014; 435:128-37. [PMID: 25233226 DOI: 10.1016/j.jcis.2014.08.018] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 08/06/2014] [Accepted: 08/08/2014] [Indexed: 11/19/2022]
Abstract
Marble, a stone composed of the mineral calcite, is subject to chemically induced weathering in nature due to its relatively high dissolution rate in acid rain. To protect monuments and sculpture from corrosion, we are investigating the application of thin layers of hydroxyapatite (HAP) onto marble. The motivation for using HAP is its low dissolution rate and crystal and lattice compatibility with calcite. A mild, wet chemical synthesis route, in which diammonium hydrogen phosphate salt was reacted with marble, alone and with cationic and anionic precursors under different reaction conditions, was used to produce inorganic HAP layers on marble. Nucleation and growth on the calcite substrate was studied, as well as metastable phase evolution, using scanning electron microscopy, grazing incidence X-ray diffraction, and atomic force microscopy. Film nucleation was enhanced by surface roughness. The rate of nucleation and the growth rate of the film increased with cationic (calcium) and anionic (carbonate) precursor additions. Calcium additions also influenced phase formation, introducing a metastable phase (octacalcium phosphate) and a different phase evolution sequence.
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Affiliation(s)
- Sonia Naidu
- Department of Chemical and Biological Engineering, Eng. Quad. E-226, Princeton University, Princeton, NJ 08544, USA.
| | - George W Scherer
- Department of Civil and Environmental Engineering, Eng. Quad. E-319, Princeton University, Princeton, NJ 08544, USA.
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Woo SM, Hwang YC, Lim HS, Choi NK, Kim SH, Kim WJ, Kim SM, Jung JY. Effect of Nifedipine on the Differentiation of Human Dental Pulp Cells Cultured with Mineral Trioxide Aggregate. J Endod 2013; 39:801-5. [DOI: 10.1016/j.joen.2012.12.037] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2012] [Revised: 12/29/2012] [Accepted: 12/30/2012] [Indexed: 11/30/2022]
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Biocompatibility of Mineral Trioxide Aggregate Mixed with Hydration Accelerators. J Endod 2013; 39:497-500. [DOI: 10.1016/j.joen.2012.11.037] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Revised: 11/13/2012] [Accepted: 11/15/2012] [Indexed: 11/20/2022]
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Bortoluzzi EA, Broon NJ, Bramante CM, Consolaro A, Garcia RB, de Moraes IG, Bernadineli N. Mineral Trioxide Aggregate with or without Calcium Chloride in Pulpotomy. J Endod 2008; 34:172-5. [DOI: 10.1016/j.joen.2007.09.015] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2007] [Revised: 09/19/2007] [Accepted: 09/28/2007] [Indexed: 11/27/2022]
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Okabe T, Sakamoto M, Takeuchi H, Matsushima K. Effects of pH on mineralization ability of human dental pulp cells. J Endod 2006; 32:198-201. [PMID: 16500225 DOI: 10.1016/j.joen.2005.10.041] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The purpose of this study was to investigate the effect of alkaline pH on calcification in human dental pulp (HDP) cells. HDP cells were cultured in pH 7.8 conditioned medium, and alkaline phosphatase (ALP) activity was measured. The ALP activity was higher in the pH 7.8 conditioned medium group than in the pH 7.2 conditioned medium group. Expression of mRNAs for bone morphogenetic protein (BMP)-2 was measured by the RT-PCR technique. The expression of BMP-2 in the pH 7.8 groups was greater than that in the pH 7.2 group. Furthermore, we determined Calcified nodule formation by von Kossa staining. The number of calcified nodules was increased in the pH 7.8 conditioned medium. These results suggest that HDP cell mineralization was enhanced in alkaline pH (pH 7.8) conditioned medium.
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Affiliation(s)
- Tatsu Okabe
- Department of Endodontics, Nihon University School of Dentistry at Matsudo, Matsudo, Japan.
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Takita T, Hayashi M, Takeichi O, Ogiso B, Suzuki N, Otsuka K, Ito K. Effect of mineral trioxide aggregate on proliferation of cultured human dental pulp cells. Int Endod J 2006; 39:415-22. [PMID: 16640642 DOI: 10.1111/j.1365-2591.2006.01097.x] [Citation(s) in RCA: 132] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
AIM To investigate the effect of mineral trioxide aggregate (MTA) on the proliferation of human dental pulp (HDP) cells ex-vivo. METHODOLOGY Human dental pulp cells were cultured with MTA or calcium hydroxide-containing cement (Dycal) using culture plate inserts. Control cells were cultured with culture plate inserts only. Cell proliferation was measured for up to 14 days using a Cell Counting kit, and the concentration of calcium ions released from the tested materials was assessed using a Calcium E-test kit. To confirm that the effect of MTA was attributable to released calcium ions, cell proliferation was measured in the presence of exogenous calcium chloride as a source of calcium ions while in the absence of MTA. RESULTS Mineral trioxide aggregate significantly stimulated cell proliferation after 12 days, whereas Dycal had no such effect. The number of calcium ions released from MTA was significantly higher than that released from Dycal. Following the addition of calcium chloride, cell proliferation increased in a dose-dependent manner after 12 days. Moreover, cell proliferation showed a similar pattern whether a given concentration of calcium ions was produced by calcium chloride or by release from MTA. CONCLUSIONS In this ex-vivo study, the elution components such as calcium ions from MTA had higher proliferation ability of HDP cells than control and Dycal.
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Affiliation(s)
- T Takita
- Department of Endodontics, Nihon University School of Dentistry, Chiyoda-ku, Tokyo, Japan
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Hunter AR, Kirk EE, Robinson DH, Kardos TB. In vitro characterization of poly(ethylene) glycol calcium citrate microspheres as a delivery system for the study of reparative dentinogenesis. ENDODONTICS & DENTAL TRAUMATOLOGY 1998; 14:159-62. [PMID: 9796479 DOI: 10.1111/j.1600-9657.1998.tb00831.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The characterization of poly(ethylene) glycol calcium citrate microspheres is described. The calcium content and content uniformity of microspheres, prepared at five concentrations ranging from 46.56 micrograms/g to 81.49 mg/g, were determined by spectroscopy. Under sink conditions first-order in vitro dissolution kinetics were observed. Granules containing approximately 80 mg Ca++/g PEG gave an in vitro calcium release over a 3-day period similar to that of a calcium hydroxide product, Pulpdent.
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Affiliation(s)
- A R Hunter
- Department of Oral Rehabilitation, University of Otago, Dunedin, New Zealand
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Hunter AR, Kirk EE, Robinson DH, Kardos TB. A slow release calcium delivery system for the study of reparative dentine formation. ENDODONTICS & DENTAL TRAUMATOLOGY 1998; 14:112-8. [PMID: 9863419 DOI: 10.1111/j.1600-9657.1998.tb00822.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Several liquid, semi-solid and solid delivery systems were formulated and tested to devise a method of reproducibly administering accurate micro-doses of calcium into a 700 microns diameter cavity in a rat maxillary incisor tooth, in the absence of hydroxyl ions. Development of this delivery system was necessary to facilitate studies of the mechanisms of pulpal repair and odontoblast differentiation. The principal requirements for the delivery system were that it should be easily administered into a small pulp exposure in the rat incisor and that a greater than 1000-fold range in calcium ion concentrations could be incorporated and delivered for a period of 2-3 days, preferably in an acidic environment to minimize the effect of non-specific nucleation under alkaline conditions. Poly- (ethylene) glycol microspheres were found to be an ideal vehicle. Under the in vitro dissolution conditions used, complete release of all calcium salts occurred within 12-15 hours, except for the very water-insoluble calcium stearate. It was anticipated that the release of calcium ions would be significantly more prolonged in vivo because of the physical constraints of the prepared cavity as well as the restricted access to fluid flow.
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Affiliation(s)
- A R Hunter
- Department of Oral Rehabilitation, University of Otago School of Dentistry, Dunedin, New Zealand
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