1
|
Rao AC, Venkatesh KV, Nandini V, Sihivahanan D, Alamoudi A, Bahammam HA, Bahammam SA, Zidane B, Bahammam MA, Chohan H, Albar NH, Yadalam PK, Patil S. Evaluating the Effect of Tideglusib-Loaded Bioactive Glass Nanoparticles as a Potential Dentine Regenerative Material. MATERIALS 2022; 15:ma15134567. [PMID: 35806692 PMCID: PMC9267687 DOI: 10.3390/ma15134567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 06/18/2022] [Accepted: 06/21/2022] [Indexed: 12/04/2022]
Abstract
Dental pulp treatment is the least intrusive procedure currently available for preserving the vitality of the pulp. Several studies are underway to improve the bioactivity of pulp capping materials. Tideglusib isa potent anti-inflammatory, antioxidant, and a regenerative drug developed against Alzheimer’s disease and has been shown to be effective in the treatment of dental cavities. However, its bioactive properties encapsulated within the nanoparticles as a component of pulp capping material are largely unknown. In this study, tideglusib-loaded bioactive glass nanoparticles were synthesized (tideglusib-BgNPs) and mixed at various concentrations into the calcium silicate cement to testits physiomechanical and bioactivitiescompared with biodentine (control). The calcium silicate cement with 10wgt% tideglusib-BgNPs showed comparable physiomechanical properties to that of biodentine. Additionally, the assessment of cytotoxicity and bioactivity (cell proliferation, wound healing, and cell migration assays) showed increased bioactivity in terms of better wound healing, increased proliferation, and better migration of human dental pulp stem cells than biodentine. These findings suggest new opportunities to use tideglusib-BgNPs in pulp therapy.
Collapse
Affiliation(s)
- Akhil C. Rao
- Department of Conservative Dentistry and Endodontics, SRM Dental College and Hospital, Kattankulathur, Kanchipuram, Chennai 603203, India; (A.C.R.); (K.V.V.); (D.S.)
| | - K. Vijay Venkatesh
- Department of Conservative Dentistry and Endodontics, SRM Dental College and Hospital, Kattankulathur, Kanchipuram, Chennai 603203, India; (A.C.R.); (K.V.V.); (D.S.)
| | - Vidyashree Nandini
- Department of Prosthodontics and Implantology, SRM Dental College and Hospital, Kattankulathur, Kanchipuram, Chennai 603203, India;
| | - Dhanasekaran Sihivahanan
- Department of Conservative Dentistry and Endodontics, SRM Dental College and Hospital, Kattankulathur, Kanchipuram, Chennai 603203, India; (A.C.R.); (K.V.V.); (D.S.)
| | - Ahmed Alamoudi
- Oral Biology Department, Faculty of Dentistry, King Abdulaziz University, Jeddah 80209, Saudi Arabia;
| | - Hammam Ahmed Bahammam
- Department of Pediatric Dentistry, College of Dentistry, King Abdulaziz University, Jeddah 80209, Saudi Arabia;
| | - Sarah Ahmed Bahammam
- Department of Pediatric Dentistry and Orthodontics, College of Dentistry, Taibah University, Medina 42353, Saudi Arabia; or
| | - Bassam Zidane
- Restorative Dentistry Department, Faculty of Dentistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Maha A. Bahammam
- Department of Periodontology, Faculty of Dentistry, King Abdulaziz University, Jeddah 80209, Saudi Arabia;
- Executive Presidency of Academic Affairs, Saudi Commission for Health Specialties, Riyadh 11614, Saudi Arabia
| | - Hitesh Chohan
- Department of Restorative Dental Sciences, College of Dentistry, Jazan University, Jazan 45142, Saudi Arabia; (H.C.); (N.H.A.)
| | - Nassreen H. Albar
- Department of Restorative Dental Sciences, College of Dentistry, Jazan University, Jazan 45142, Saudi Arabia; (H.C.); (N.H.A.)
| | - Pradeep Kumar Yadalam
- Department of Periodontics, Saveetha Institute of Medical and Technical Sciences, Saveetha Dental College and Hospitals, Saveetha University, Chennai 602117, India;
| | - Shankargouda Patil
- Department of Maxillofacial Surgery and Diagnostic Sciences, Division of Oral Pathology, College of Dentistry, Jazan University, Jazan 45142, Saudi Arabia
- Centre of Molecular Medicine and Diagnostics (COMManD), Saveetha Dental College & Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 600077, India
- Correspondence:
| |
Collapse
|
2
|
Antimicrobial Action, Genotoxicity, and Morphological Analysis of Three Calcium Silicate-Based Cements. BIOMED RESEARCH INTERNATIONAL 2022; 2022:2155226. [PMID: 35592523 PMCID: PMC9113872 DOI: 10.1155/2022/2155226] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/08/2022] [Accepted: 04/19/2022] [Indexed: 12/31/2022]
Abstract
This study is aimed at evaluating five mineral oxides (5MO), mineral trioxide aggregate repair high plasticity (MTA HP), and mineral trioxide aggregate (MTA) in relation to the antimicrobial action over Porphyromonas gingivalis, Porphyromonas endodontalis, Parvimonas micra, Fusobacterium nucleatum, and Prevotella intermedia; the genotoxicity over mouse macrophage (RAW 264.7) and osteoblast (Mg-63) cultures; and the morphological analysis using scanning electron microscopy (SEM) analysis (50 k and ×100 k). Sodium hypochlorite (NaOCl), calcium hydroxide, and saline solution were used as control groups in the different analysis. All data were submitted to a normality test and then analyzed with one-way ANOVA, Tukey, and Kruskal-Wallis and Dunn tests, considering α ≤ 0.05 significance level. It was found that over P. gingivalis and P. endodontalis, there was no a significant difference between the calcium silicate-based cements (CSC) and the control group of saline solution, and only 5MO was similar to the NaOCl group. However, over P. micra, all groups were effective and showed a statistically significant difference compared to the saline solution group. Conversely, none of the groups were effective over F. nucleatum and P. intermedia, except of the NaOCl group. There was a significant difference between 5MO and MTA groups in comparison with NaOCl and MTA HP over osteoblasts and macrophages after 24 hours. SEM images showed small irregular particles interspersed with some elongated needle-like particles and small irregular particles with some larger particles as well as elongated particles. It was concluded that 5MO, MTA, and MTA HP have effective antimicrobial action over P. micra. However, only 5MO is effective over P. gingivalis and P. endodontalis. Besides, 5MO and MTA are not genotoxic over mouse macrophage (RAW 264.7) and osteoblast (Mg-63) cultures.
Collapse
|
3
|
Benetti F, Gomes-Filho JE, de Azevedo-Queiroz IO, Carminatti M, Conti LC, Dos Reis-Prado AH, de Oliveira SHP, Ervolino E, Dezan-Júnior E, Cintra LTA. Biological assessment of a new ready-to-use hydraulic sealer. Restor Dent Endod 2021; 46:e21. [PMID: 34123757 PMCID: PMC8170373 DOI: 10.5395/rde.2021.46.e21] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 05/09/2020] [Accepted: 05/29/2020] [Indexed: 11/21/2022] Open
Abstract
Objectives This study compared the cytotoxicity, biocompatibility, and tenascin immunolabeling of a new ready-to-use hydraulic sealer (Bio-C Sealer) with MTA-Fillapex and white MTA-Angelus. Materials and Methods L929 fibroblasts were cultivated and exposed to undiluted and diluted material extracts. Polyethylene tubes with or without (the control) the materials were implanted into the dorsa of rats. At 7 days and 30 days, the rats were euthanized, and the specimens were prepared for analysis; inflammation and immunolabeling were measured, and statistical analysis was performed (p < 0.05). Results MTA-Fillapex exhibited greater cytotoxicity than the other materials at all time points (p < 0.05). The undiluted Bio-C Sealer exhibited greater cytocompatibility at 6 and 48 hours than white MTA-Angelus, with higher cell viability than in the control (p < 0.05). White MTA-Angelus displayed higher cell viability than the control at 24 hours, and the one-half dilution displayed similar results at both 6 and 48 hours (p < 0.05). At 7 days and 30 days, the groups exhibited moderate inflammation with thick fibrous capsules and mild inflammation with thin fibrous capsules, respectively (p > 0.05). At 7 days, moderate to strong immunolabeling was observed (p > 0.05). After 30 days, the control and MTA-Fillapex groups exhibited strong immunolabeling, the white MTA-Angelus group exhibited moderate immunolabeling (p > 0.05), and the Bio-C Sealer group exhibited low-to-moderate immunolabeling, differing significantly from the control (p < 0.05). Conclusions Bio-C Sealer and white MTA-Angelus exhibited greater cytocompatibility than MTA-Fillapex; all materials displayed adequate biocompatibility and induced tenascin immunolabeling.
Collapse
Affiliation(s)
- Francine Benetti
- Department of Restorative Dentistry, Universidade Federal de Minas Gerais (UFMG), School of Dentistry, Belo Horizonte, MG, Brazil.,Department of Preventive and Restorative Dentistry, São Paulo State University (UNESP), School of Dentistry, Araçatuba, SP, Brazil
| | - João Eduardo Gomes-Filho
- Department of Preventive and Restorative Dentistry, São Paulo State University (UNESP), School of Dentistry, Araçatuba, SP, Brazil
| | - India Olinta de Azevedo-Queiroz
- Department of Preventive and Restorative Dentistry, São Paulo State University (UNESP), School of Dentistry, Araçatuba, SP, Brazil
| | - Marina Carminatti
- Department of Preventive and Restorative Dentistry, São Paulo State University (UNESP), School of Dentistry, Araçatuba, SP, Brazil
| | - Letícia Citelli Conti
- Department of Preventive and Restorative Dentistry, São Paulo State University (UNESP), School of Dentistry, Araçatuba, SP, Brazil
| | | | | | - Edilson Ervolino
- Department of Basic Science, São Paulo State University (UNESP), School of Dentistry, Araçatuba, SP, Brazil
| | - Elói Dezan-Júnior
- Department of Preventive and Restorative Dentistry, São Paulo State University (UNESP), School of Dentistry, Araçatuba, SP, Brazil
| | - Luciano Tavares Angelo Cintra
- Department of Preventive and Restorative Dentistry, São Paulo State University (UNESP), School of Dentistry, Araçatuba, SP, Brazil
| |
Collapse
|
4
|
Umar D, Alrashidi H, Alnazer H, Arnous W. Importance of determining and establishing latex allergy in orthodontic patients. ADVANCES IN HUMAN BIOLOGY 2021. [DOI: 10.4103/aihb.aihb_141_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|
5
|
Pintor AVB, Queiroz LD, Barcelos R, Primo LSG, Maia LC, Alves GG. MTT versus other cell viability assays to evaluate the biocompatibility of root canal filling materials: a systematic review. Int Endod J 2020; 53:1348-1373. [PMID: 32602945 DOI: 10.1111/iej.13353] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 06/20/2020] [Accepted: 06/24/2020] [Indexed: 01/16/2023]
Abstract
OBJECTIVES This systematic review aimed to compare the cytotoxicity of root canal filling materials (RCFMs) assessed using tetrazolium salt-based tests (TSBT), including the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay, with those obtained using other cell viability assays. METHODS A search was performed on PubMed, Scopus, Web of Science and OpenGrey up to March 2019, followed by a manual search. According to the Participants, Exposure, Comparator and Outcomes (PECO) criteria, in vitro studies that evaluated the cytotoxic effect of RCFMss on animal and/or human cells through TSBT and at least one other viability assay were compared. The methodological quality of selected papers was assessed using ToxRTool® and SciRAP® . Data were analysed using Wilcoxon's signed-rank test for paired samples and linear weighting kappa. RESULTS A total of 230 non-duplicated records were identified. After applying the eligibility criteria, 55 studies were selected for methodological evaluation, seven were selected by manual searching, 22 were excluded for methodological reasons, and 40 were included. A total of 410 comparisons were performed between TSBT and distinct cell viability tests (DCVT). MTT had moderate concordance with DCVT using human cells (n = 138 samples) (P = 0.507; k = 0.4225) and animal cells (n = 122 samples) (P = 0.124; k = 0.5775). XTT had good concordance using human (n = 110 samples) (P = 0.507; k = 0.6336) and animal cells (n = 12 samples) (P = 0.564; k = 0.6604). MTT, XTT, WST and MTS assays showed moderate concordance with DCVT (n = 410 samples) (P = 0.375; k = 0.5138) and complete agreement in 226 samples. DISCUSSION The included studies had methodological heterogeneity that was minimized by the systematic review methodology. CONCLUSIONS MTT and XTT do not cause over- or underestimation of cell viability during cytotoxicity screening of root canal filling materials, implying that these assays can be considered reliable for this purpose. Nonetheless, the development of protocols for the cytotoxic screening of these materials on 3D tissue-like cultures aiming to improve their predictability in the clinical scenario is suggested.
Collapse
Affiliation(s)
- A V B Pintor
- Department of Pediatric Dentistry and Orthodontics, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - L D Queiroz
- Post-Graduation Program in Science and Biotechnology, Universidade Federal Fluminense, Rio de Janeiro, Brazil
| | - R Barcelos
- Department of Specific Formation, Institute of Health of Nova Friburgo, Universidade Federal Fluminense - Nova Friburgo, Rio de Janeiro, Brazil
| | - L S G Primo
- Department of Pediatric Dentistry and Orthodontics, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - L C Maia
- Department of Pediatric Dentistry and Orthodontics, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - G G Alves
- Department of Molecular and Cellular Biology, Biology Institute, Universidade Federal Fluminense, Rio de Janeiro, Brazil
| |
Collapse
|
6
|
Chen S, Mestres G, Lan W, Xia W, Engqvist H. Cytotoxicity of modified glass ionomer cement on odontoblast cells. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:116. [PMID: 27221819 DOI: 10.1007/s10856-016-5729-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 05/14/2016] [Indexed: 06/05/2023]
Abstract
Recently a modified glass ionomer cement (GIC) with enhanced bioactivity due to the incorporation of wollastonite or mineral trioxide aggregate (MTA) has been reported. The aim of this study was to evaluate the cytotoxic effect of the modified GIC on odontoblast-like cells. The cytotoxicity of a conventional GIC, wollastonite modified GIC (W-mGIC), MTA modified GIC (M-mGIC) and MTA cement has been evaluated using cement extracts, a culture media modified by the cement. Ion concentration and pH of each material in the culture media were measured and correlated to the results of the cytotoxicity study. Among the four groups, conventional GIC showed the most cytotoxicity effect, followed by W-mGIC and M-mGIC. MTA showed the least toxic effect. GIC showed the lowest pH (6.36) while MTA showed the highest (8.62). In terms of ion concentration, MTA showed the largest Ca(2+) concentration (467.3 mg/L) while GIC showed the highest concentration of Si(4+) (19.9 mg/L), Al(3+) (7.2 mg/L) and Sr(2+) (100.3 mg/L). Concentration of F(-) was under the detection limit (0.02 mg/L) for all samples. However the concentrations of these ions are considered too low to be toxic. Our study showed that the cytotoxicity of conventional GIC can be moderated by incorporating calcium silicate based ceramics. The modified GIC might be promising as novel dental restorative cements.
Collapse
Affiliation(s)
- Song Chen
- Ångström Laboratory, Department of Engineering Science, Applied Materials Science, Uppsala University, Box 534, 75121, Uppsala, Sweden
| | - Gemma Mestres
- Ångström Laboratory, Department of Engineering Science, Applied Materials Science, Uppsala University, Box 534, 75121, Uppsala, Sweden
| | - Weihua Lan
- Ångström Laboratory, Department of Engineering Science, Applied Materials Science, Uppsala University, Box 534, 75121, Uppsala, Sweden
| | - Wei Xia
- Ångström Laboratory, Department of Engineering Science, Applied Materials Science, Uppsala University, Box 534, 75121, Uppsala, Sweden.
| | - Håkan Engqvist
- Ångström Laboratory, Department of Engineering Science, Applied Materials Science, Uppsala University, Box 534, 75121, Uppsala, Sweden
| |
Collapse
|
7
|
Vidal K, Martin G, Lozano O, Salas M, Trigueros J, Aguilar G. Apical Closure in Apexification: A Review and Case Report of Apexification Treatment of an Immature Permanent Tooth with Biodentine. J Endod 2016; 42:730-4. [PMID: 26994597 DOI: 10.1016/j.joen.2016.02.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 02/09/2016] [Accepted: 02/11/2016] [Indexed: 12/12/2022]
Abstract
Materials such as calcium hydroxide paste and mineral trioxide aggregate are used in apexification treatment of immature permanent teeth, but the search for improved materials with higher characteristics of biocompatibility results in different materials. Biodentine is a tricalcium silicate cement that possesses adequate handling characteristics and acceptable mechanical and bioactivity properties. This report describes the case of a 9-year-old boy who was referred to the Department of Dental Clinic of Querétaro Autonomous University of Mexico. One month prior the patient had suffered a dental trauma of his upper left central incisor and had been treated by another dentist. The clinical diagnosis was previously initiated therapy and symptomatic apical periodontitis. The treatment was apexification with Biodentine. At follow-ups performed at 3, 6, and 18 months after treatment the tooth was asymptomatic. The cone-beam computed tomography scan at 18-month postoperative follow-up revealed continuity of periodontal ligament space, absence of periapical rarefactions, and a thin layer of calcified tissue formed apical to the Biodentine barrier. On the basis of sealing ability and biocompatibility, apexification treatment with Biodentine was applied in the present case report. The favorable clinical and radiographic outcome in this case demonstrated that Biodentine may be an efficient alternative to the conventional apexification materials.
Collapse
Affiliation(s)
- Karla Vidal
- Medical Research, University of Querétaro, Querétaro, Querétaro, Mexico.
| | - Gabriela Martin
- Endodontic Department, Dentistry School, National University of Córdoba, Córdoba, Argentina
| | - Oscar Lozano
- Medical Research, University of Querétaro, Querétaro, Querétaro, Mexico
| | - Marco Salas
- Biomedical Sciences, University of San Luis Potosí, San Luis Potosí, San Luis Potosí, Mexico
| | - Jaime Trigueros
- Odontology Research, Latin University, Celaya, Guanajuato, Mexico
| | | |
Collapse
|
8
|
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]
|
9
|
NAGHAVI N, GHODDUSI J, SADEGHNIA HR, ASADPOUR E, ASGARY S. Genotoxicity and cytotoxicity of mineral trioxide aggregate and calcium enriched mixture cements on L929 mouse fibroblast cells. Dent Mater J 2014; 33:64-9. [DOI: 10.4012/dmj.2013-123] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
10
|
Arruda RAA, Cunha RS, Miguita KB, Silveira CFM, De Martin AS, Pinheiro SL, Rocha DGP, Bueno CES. Sealing ability of mineral trioxide aggregate (MTA) combined with distilled water, chlorhexidine, and doxycycline. J Oral Sci 2013; 54:233-9. [PMID: 23047034 DOI: 10.2334/josnusd.54.233] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
The aim of this study was to evaluate the sealing ability of mineral trioxide aggregate (MTA Bio) combined with different mixing agents (distilled water, chlorhexidine, doxycycline), used as an apical root-end filling material. Forty-two extracted human teeth were divided into three groups (n = 12); six teeth were used as controls. Root-ends were resected at 90 degrees, 3 mm from the apex. Root-end cavities were prepared using ultrasonic tips and filled with MTA Bio plus distilled water, 2% chlorhexidine solution, or 10% doxycycline solution. Apical sealing was assessed by microleakage of 50% silver nitrate solution. Roots were longitudinally sectioned in a buccolingual plane and analyzed using an operating microscope (20× magnification). Depth of dye leakage into the dentinal walls was measured in millimeters. Results were analyzed using ANOVA and Tukey's test (P = 0.05). MTA Bio plus distilled water showed significantly higher mean leakage results (1.06 mm) when compared with MTA Bio plus doxycycline (0.61 mm), and higher, although not significant, results when compared with MTA Bio plus chlorhexidine (0.79 mm). In conclusion, replacing distilled water with two biologically active mixing agents (doxycycline and chlorhexidine) did not alter the sealing properties of MTABio. The antimicrobial properties of these combinations should be further investigated.
Collapse
Affiliation(s)
- Roberta A A Arruda
- Department of Endodontics, São Leopoldo Mandic School of Dentistry and Dental Research Center, Campinas, SP, Brazil.
| | | | | | | | | | | | | | | |
Collapse
|
11
|
In Vitro Biocompatibility Evaluation of a Root Canal Filling Material That Expands on Water Sorption. J Endod 2013; 39:883-8. [DOI: 10.1016/j.joen.2013.03.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2012] [Revised: 02/23/2013] [Accepted: 03/03/2013] [Indexed: 01/09/2023]
|
12
|
Kurita LM, Cavalcante RB, Gurgel-Filho ED, De-Deus GA, Ximenes AB, Da Silva EJNL. Response of mice connective tissue to three different endodontic materials. Microsc Res Tech 2013; 76:311-5. [PMID: 23335503 DOI: 10.1002/jemt.22168] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2012] [Accepted: 12/11/2012] [Indexed: 11/07/2022]
Abstract
The aim of this study was to evaluate the biocompatibility of mineral trioxide aggregate (MTA) Bio and Portland cement (PC) and compare with those of ProRoot MTA. Polyethylene tubes were filled with materials and placed into dorsal subcutaneous connective tissue of Wistar albino rats. After 7, 30, and 60 days after the surgical procedure, the implants with the surrounding tissue were removed. Tissue samples were subjected to histological processing, and sections were stained with hematoxylin and eosin. Sections were evaluated for the intensity of inflammation, predominant cell type, presence of fibrous capsule and granulation tissue. Data were submitted to Kruskal-Wallis test at a significant level of P ≤ 0.05. No statistical differences were observed at any evaluated condition among tested materials (P > 0.05). Statistically significant differences were observed between mean inflammatory scores, cell types and granulation tissue of the same material in different experimental periods (P < 0.05). Can be concluded that biocompatibility of MTA bio and PC were comparable with that of ProRoot MTA.
Collapse
Affiliation(s)
- Lucio Mitsuo Kurita
- Department of Clinical Dentistry, Federal University of Ceará (UFC) Fortaleza, CE, Brazil
| | | | | | | | | | | |
Collapse
|
13
|
Dantas RVF, Conde MCM, Sarmento HR, Zanchi CH, Tarquinio SBC, Ogliari FA, Demarco FF. Novel experimental cements for use on the dentin-pulp complex. Braz Dent J 2012. [DOI: 10.1590/s0103-64402012000400006] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
This aim of this study was to evaluate the physicochemical and biological properties of novel experimental cements (Hybrid, Paste and Resin) based on synergistic combinations of existing materials, including pH, diametral tensile strength (DTS) and cytotoxicity comparing them with mineral trioxide aggregate (MTA - Angelus®) and a glass ionomer cement (GIC) developed at our laboratory. For the physicochemical and biological tests, specimens with standard dimensions were produced. pH measurements were performed with digital pH meter at the following time intervals: 3, 24, 48 and 72 h. For the DTS test, cylindrical specimens were subjected to compressive load until fracture. The MTT assay was performed for cytotoxicity evaluation. Data were analyzed by ANOVA and Tukey's test (α=0.05). Paste group showed pH values similar to MTA, and Hybrid group presented pH values similar to GIC (p>0.05). The tested materials showed pH values ranging from alkaline to near neutrality at the evaluated times. MTA and GIC showed similar DTS values. The lowest and highest DTS values were seen in the Paste and Resin groups, respectively (p<0.05). Cell viability for MTA and experimental Hybrid, Paste and Resin groups was 49%, 93%, 90% and 86%, respectively, when compared with the control group. The photo-cured experimental resin cement showed similar or superior performance compared with the current commercial or other tested experimental materials.
Collapse
|
14
|
|
15
|
Santos RLD, Pithon MM, Martins FO, Romanos MTV, Ruellas ACDO. Cytotoxicity of latex and non-latex orthodontic elastomeric ligatures on L929 mouse fibroblasts. Braz Dent J 2010; 21:205-10. [PMID: 21203701 DOI: 10.1590/s0103-64402010000300005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2010] [Accepted: 06/22/2010] [Indexed: 11/22/2022] Open
Abstract
This study investigated the cytotoxicity exists between latex and non-latex Orthodontic elastomeric ligatures. Six elastomeric ligatures (1 latex, 2 latex-free and 3 polyurethane) from different manufacturers were divided into 6 groups of 15 elastics each: A (Latex-free, American Orthodontics), M (Polyurethane, Morelli), G (Polyurethane,GAC International), Te (Polyurethane, Tecnident), TP (Natural latex,TP Orthodontics) and U (Latex-free,3M Unitek). The cytotoxicity assay was performed using cell cultures (L929 mouse fibroblast cell line), which were subjected to the cell viability test with neutral red ("dye-uptake") at 1, 2, 3, 7 and 28 days. Data were analyzed statistically by ANOVA and Tukey's test (α=0.05). No statistically significant differences (p>0.05) were observed between Groups M and Te in all experimental periods, except at 2 days. No significant differences (p>0.05) in cell viability were found either among Groups A, G, TP and U or between Groups M and Te at 24 h or among Groups CC, A, G, TP and U at 2 and 28 days. It may be concluded that latex-free elastomeric ligatures from American Orthodontics and Unitek trademarks induced less cell lysis compared to latex and polyurethane ligatures.
Collapse
|
16
|
Chung CR, Kim E, Shin SJ. Biocompatibility of bioaggregate cement on human pulp and periodontal ligament (PDL) derived cells. ACTA ACUST UNITED AC 2010. [DOI: 10.5395/jkacd.2010.35.6.473] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Choo-Ryung Chung
- Department of Orthodontics, Yonsei University College of Dentistry, Seoul, Korea
| | - Euiseong Kim
- Department of Conservative Dentistry, Yonsei University College of Dentistry, Seoul, Korea
| | - Su-Jung Shin
- Department of Conservative Dentistry, Yonsei University College of Dentistry, Seoul, Korea
| |
Collapse
|