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Kumar N, Maher N, Amin F, Ghabbani H, Zafar MS, Rodríguez-Lozano FJ, Oñate-Sánchez RE. Biomimetic Approaches in Clinical Endodontics. Biomimetics (Basel) 2022; 7:biomimetics7040229. [PMID: 36546929 PMCID: PMC9775094 DOI: 10.3390/biomimetics7040229] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/19/2022] [Accepted: 12/02/2022] [Indexed: 12/13/2022] Open
Abstract
In the last few decades, biomimetic concepts have been widely adopted in various biomedical fields, including clinical dentistry. Endodontics is an important sub-branch of dentistry which deals with the different conditions of pulp to prevent tooth loss. Traditionally, common procedures, namely pulp capping, root canal treatment, apexification, and apexigonesis, have been considered for the treatment of different pulp conditions using selected materials. However, clinically to regenerate dental pulp, tissue engineering has been advocated as a feasible approach. Currently, new trends are emerging in terms of regenerative endodontics which have led to the replacement of diseased and non-vital teeth into the functional and healthy dentine-pulp complex. Root- canal therapy is the standard management option when dental pulp is damaged irreversibly. This treatment modality involves soft-tissue removal and then filling that gap through the obturation technique with a synthetic material. The formation of tubular dentine and pulp-like tissue formation occurs when stem cells are transplanted into the root canal with an appropriate scaffold material. To sum up tissue engineering approach includes three components: (1) scaffold, (2) differentiation, growth, and factors, and (3) the recruitment of stem cells within the pulp or from the periapical region. The aim of this paper is to thoroughly review and discuss various pulp-regenerative approaches and materials used in regenerative endodontics which may highlight the current trends and future research prospects in this particular area.
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Affiliation(s)
- Naresh Kumar
- Department of Science of Dental Materials, Dr. Ishrat Ul Ebad Khan Institute of Oral Health Sciences, Dow University of Health Sciences, Karachi 74200, Pakistan
- Correspondence: ; Tel.: +92-333-2818500
| | - Nazrah Maher
- Department of Science of Dental Materials, Dr. Ishrat Ul Ebad Khan Institute of Oral Health Sciences, Dow University of Health Sciences, Karachi 74200, Pakistan
| | - Faiza Amin
- Department of Science of Dental Materials, Dow Dental College, Dow University of Health Sciences, Karachi 74200, Pakistan
| | - Hani Ghabbani
- Department of Restorative Dentistry, College of Dentistry, Taibah University, Al Madinah, Al Munawwarah 41311, Saudi Arabia
| | - Muhammad Sohail Zafar
- Department of Restorative Dentistry, College of Dentistry, Taibah University, Al Madinah, Al Munawwarah 41311, Saudi Arabia
- Department of Dental Materials, Islamic International Dental College, Riphah International University, Islamabad 44000, Pakistan
| | | | - Ricardo E. Oñate-Sánchez
- Department of Special Care in Dentistry, Hospital Morales Meseguer, IMIB-Arrixaca, University of Murcia, 30008 Murcia, Spain
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Effect of root perforation repair with mineral aggregate-based cements on the retention of customized fiberglass posts. Odontology 2022; 110:535-544. [PMID: 35044577 DOI: 10.1007/s10266-022-00686-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 01/03/2022] [Indexed: 12/31/2022]
Abstract
The purpose of this study was to investigate whether the root perforation repair with mineral aggregate-based cements affects the retention of customized fiberglass posts to bovine intraradicular dentin. Sixty-four bovine mandibular incisors had their root canals endodontically treated and prepared for fiberglass posts luting. Teeth were randomly distributed into four groups (n = 16), according to the cement used for the perforations repair (MTA HP; calcium aluminate cement-CAC; and CAC + calcium carbonate nanoparticles-nano-CaCO3) and control group (no perforation). The groups were redistributed according to the fiberglass posts luting protocol (n = 8): total-etching (TE) (MTA HP/TE; CAC/TE; CAC + CaCO3/TE and control/TE) and self-etching (SE) (MTA HP/SE; CAC/SE; CAC + CaCO3/SE and control/SE). Roots were sectioned into 1.3 mm-thick dentin slices obtaining samples that were submitted to the push-out test in Universal Testing Machine (Instron, Model 4444-0.5 mm/min). The fractured samples were analyzed under stereomicroscope and Scanning Electron Microscope (SEM). CAC/TE and CAC/SE groups had significant difference between the cervical and middle thirds (p < 0.05). When the root thirds were not considered, CAC/SE had the lowest bond strength and differed statistically from CAC/TE and CAC + CaCO3/TE groups, which had the highest mean bond strength values (p < 0.05). The root perforations repair did not affect the bond strength of resin cement/customized fiberglass posts to bovine dentin. The increase in bond strength is luting protocol dependent.
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Paz JER, Costa PO, Souza AAC, de Oliveira IM, Falcão LF, Falcão CAM, Ferraz MÂAL, Pinto LSS. Bone repair in defects filled with AH Plus sealer and different concentrations of MTA: a study in rat tibiae. Restor Dent Endod 2021; 46:e48. [PMID: 34909412 PMCID: PMC8636085 DOI: 10.5395/rde.2021.46.e48] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/15/2020] [Accepted: 12/16/2020] [Indexed: 12/25/2022] Open
Abstract
Objectives This study aimed to evaluate the effects on bone repair of different concentrations of mineral trioxide aggregate (MTA) added to AH Plus. Materials and Methods Bone tissue reactions were evaluated in 30 rats (Rattus norvegicus) after 7 and 30 days. In the AH + MTA10, AH + MTA20, and AH + MTA30 groups, defects in the tibiae were filled with AH Plus with MTA in proportions of 10%, 20% and 30%, respectively; in the MTA-FILL group, MTA Fillapex was used; and in the control group, no sealer was used. The samples were histologically analyzed to assess bone union and maturation. The Kruskal-Wallis and Mann-Whitney tests were performed for multiple pairwise comparisons (p ≤ 0.05). Results At the 7-day time point, AH + MTA10 was superior to MTA-FILL with respect to bone union, and AH + MTA20 was superior to MTA-FILL with respect to bone maturity (p < 0.05). At the 30-day time point, both the AH + MTA10 and AH + MTA20 experimental sealers were superior not only to MTA-FILL, but also to AH + MTA30 with respect to both parameters (p < 0.05). The results of the AH + MTA10 and AH + MTA20 groups were superior to those of the control group for both parameters and experimental time points (p < 0.05). Conclusions The results suggest the potential benefit of using a combination of these materials in situations requiring bone repair.
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Affiliation(s)
- Jessica Emanuella Rocha Paz
- Department of Oral & Maxillofacial Surgery and Periodontology, São Paulo University, School of Dentistry, Ribeirão Preto, SP, Brazil
| | - Priscila Oliveira Costa
- Department of Endodontics, Dental School, Uninovafapi University Center, Teresina, PI, Brazil
| | | | | | | | - Carlos Alberto Monteiro Falcão
- Department of Endodontics, Dental School, Uninovafapi University Center, Teresina, PI, Brazil.,Department of Morphology, Health Science Center, State University of Piauí, Teresina, PI, Brazil
| | - Maria Ângela Area Leão Ferraz
- Department of Endodontics, Dental School, Uninovafapi University Center, Teresina, PI, Brazil.,Department of Morphology, Health Science Center, State University of Piauí, Teresina, PI, Brazil
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Pandolfo MT, Rover G, Bortoluzzi EA, Teixeira CDS, Rossetto HL, Fernades PCDSV, Côrte-Real ISG, Carvalho SMF, Garcia LDFR. Fracture Resistance of Simulated Immature Teeth Reinforced with Different Mineral Aggregate-Based Materials. Braz Dent J 2021; 32:21-31. [PMID: 34755787 DOI: 10.1590/0103-6440202104236] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 07/08/2021] [Indexed: 11/22/2022] Open
Abstract
This study assessed the fracture resistance of simulated immature teeth reinforced with calcium aluminate cement (CAC) or mineral trioxide aggregate (MTA) containing calcium carbonate nanoparticles (nano-CaCO3). The microstructural arrangement of the cements and their chemical constitution were also evaluated. Forty-eight canines simulating immature teeth were distributed into 6 groups (n=8): Negative control - no apical plug or root canal filling; CAC - apical plug with CAC; CAC/nano-CaCO3 - apical plug with CAC+5% nano-CaCO3; MTA - apical plug with MTA; MTA/nano-CaCO3 - apical plug with MTA+5% nano-CaCO3; and Positive control - root canal filling with MTA. The fracture resistance was evaluated in a universal testing machine. Samples of the cements were analyzed under Scanning Electron Microscope (SEM) to determine their microstructural arrangement. Chemical analysis of the cements was performed by Energy Dispersive X-ray Spectroscopy (EDS). The fracture resistance of CAC/nano-CaCO3 was significantly higher than the negative control (p<0.05). There was no significant difference among the other groups (p>0.05). Both cements had a more regular microstructure with the addition of nano-CaCO3. MTA samples had more calcium available in soluble forms than CAC. The addition of nano-CaCO3 to CAC increased the fracture resistance of teeth in comparison with the non-reinforced teeth. The microstructure of both cements containing nano-CaCO3 was similar, with a more homogeneous distribution of lamellar- and prismatic-shaped crystals. MTA had more calcium available in soluble forms than CAC.
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Affiliation(s)
- Mariana Travi Pandolfo
- Department of Dentistry - Endodontics Division, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Gabriela Rover
- Department of Dentistry - Endodontics Division, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Eduardo Antunes Bortoluzzi
- Department of Dentistry - Endodontics Division, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Cleonice da Silveira Teixeira
- Department of Dentistry - Endodontics Division, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | | | | | | | - Sandra Maria Fernandes Carvalho
- CEMMPRE - Centre for Mechanical Engineering, Materials and Processes, University of Coimbra, Coimbra, Portugal.,CF-UM-UP - Centre of Physics of the Universities of Minho and Porto, Guimarães, Portugal
| | - Lucas da Fonseca Roberti Garcia
- Department of Dentistry - Endodontics Division, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, SC, Brazil
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Özcan M, Garcia LDFR, Volpato CAM. Bioactive Materials for Direct and Indirect Restorations: Concepts and Applications. FRONTIERS IN DENTAL MEDICINE 2021. [DOI: 10.3389/fdmed.2021.647267] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Currently, minimally invasive restorations could be made in dentistry applying adhesive materials and adhesion principles to the dental structures. Following this philosophy, endodontic interventions have been avoided largely, preserving hard tissues, and maintaining dental vitality. Advances in biologically favorable bioactive materials enabled clinicans to induce repair and regeneration of dental tissues. Such materials are primarily used for pulp protection and cementation of indirect restorations. This review highlights current bioactive materials available, principles of bioactivity and their mechanisms of action.
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de Jesus LS, Volpato CAM, Bortoluzzi EA, da Silveira Teixeira C, Rossetto HL, de Carvalho Panzeri Pires-de-Souza F, da Fonseca Roberti Garcia L. Tooth discoloration induced by the different phases of a calcium aluminate cement: One-year assessment. J ESTHET RESTOR DENT 2021; 33:999-1009. [PMID: 33929073 DOI: 10.1111/jerd.12739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/16/2021] [Accepted: 04/19/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To assess the discoloration of teeth treated with the different phases of calcium aluminate cement (CAC), in comparison with the conventional CAC and mineral trioxide aggregate (MTA). MATERIALS AND METHODS Fifty bovine incisors were prepared and filled. Two millimeters of the filling was removed to fabricate a cervical plug with the following cements (n=10): CA(CaO.Al2 O3 ); CA2 (CaO.2Al2 O3 ); C12 A7 (12CaO.7Al2 O3 ); CAC and MTA. The initial color measurement was performed and after 7, 15, 30, 45, 90, 180, and 365 days new color measurements were performed to determine the color (ΔE00 ), lightness (ΔL'), chroma (ΔC'), hue differences (ΔH'), and the whiteness index (WID ). RESULTS ΔE00 was significant for groups (p = 0.036) and periods (p < 0.05). The greater ΔE00 was observed after 365 days for CAC (12.8). C12 A7 (7.2) had the smallest ΔE00 . ΔL' and ΔC' were significant for groups and periods (p < 0.05). ΔH' was significant for periods (p < 0.05). After 365 days, significant reduction in lightness was observed for all groups. For CA, CA2 , CAC, and MTA groups, the WID values decreased over time (p < 0.05). CONCLUSIONS The tested cements changed the color behavior of the samples, resulting in greater teeth darkening over time. CLINICAL SIGNIFICANCE There is no long-term study assessing the discoloration induced by the different phases of CAC.
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Affiliation(s)
- Lucas Santos de Jesus
- Department of Dentistry, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, Brazil
| | | | - Eduardo Antunes Bortoluzzi
- Department of Dentistry, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, Brazil
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Bortoluzzi EA, da Silveira Teixeira C, Broon NJ, Consolaro A, Pinheiro TN, da Fonseca Roberti Garcia L, Pashley DH, Bramante CM. Tissue response to white mineral aggregate-based cement containing barium sulfate as alternative radiopacifier: A randomized controlled animal study. Microsc Res Tech 2021; 84:705-711. [PMID: 33089621 DOI: 10.1002/jemt.23629] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 10/05/2020] [Accepted: 10/10/2020] [Indexed: 11/07/2022]
Abstract
The purpose of this study was to investigate the tissue reaction stimulated by BaSO4 - and Bi2 O3 -containing White MTA Angelus, in comparison with Bi2 O3 -containing white Portland cement, and white ProRoot MTA. Thirty-six adult male Wistar rats (Rattus norvegicus), weighing between 250 and 300 g, were distributed into three groups (n = 12) in accordance with the period of sacrifice (15, 30, and 60 days). Four polyethylene tubes filled with the tested cements were implanted into the dorsum of each rat. Lateral wall of the tubes served as the negative control. After the experimental periods, the animals were euthanized by overdose of pentobarbital anesthetic solution, and the specimens were prepared for microscopic analysis under ×50, ×100, and ×400 magnifications. Inflammatory scores (0-3) were used to grade the tissue reaction. Data were analyzed by the Kruskal-Wallis test and Dunn's test for individual comparisons (p < .05). A mild to moderate inflammatory tissue reaction was observed at the 15-day period, which decreased over the course of the periods for all cements, except for Portland cement. There was no significant difference among the tissue responses for ProRoot MTA, BaSO4 - and Bi2 O3 -containing White MTA Angelus at the 60-day period (p > .05). The Portland group had moderate inflammatory reaction at the final period of analysis, which was statistically different when compared to the other groups (p < .05). The microscopic findings of this animal study suggest that the addition of BaSO4 to White MTA Angelus does not hampers the biocompatibility of the cement.
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Affiliation(s)
- Eduardo Antunes Bortoluzzi
- Department of Dentistry - Endodontics Division, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Cleonice da Silveira Teixeira
- Department of Dentistry - Endodontics Division, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Norberto J Broon
- Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Mexico City, Mexico
| | - Alberto Consolaro
- Department of Surgery, Stomatology, Pathology and Radiology, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil
| | - Tiago Novaes Pinheiro
- Superior School of Health Sciences, State University of Amazonas, Manaus, Amazonas, Brazil
| | - Lucas da Fonseca Roberti Garcia
- Department of Dentistry - Endodontics Division, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - David H Pashley
- Department of Oral Biology and Diagnostic Sciences, The Dental College of Georgia, Augusta University, 1120 15th Street, Augusta, Georgia, USA
| | - Clovis Monteiro Bramante
- Department of Dentistry, Endodontics and Dental Materials, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil
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de Vasconcellos LMR, Camporês KL, de Alcântara Abdala JM, Vieira MN, de Oliveira IR. Biological and microbiological behavior of calcium aluminate cement-based blend for filling of bone defects. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2019; 31:10. [PMID: 31873807 DOI: 10.1007/s10856-019-6348-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 12/11/2019] [Indexed: 06/10/2023]
Abstract
Calcium aluminate cement (CAC) as a biomaterial has been evaluated for its physical, mechanical and biocompatibility properties. Furthermore, the application of CAC for bone repair is due to its composition and coefficient of thermal expansion, which is similar to that of human bone. Thus, the aim of this study was to evaluate compositions of CAC-based blends as substitutes for bone defects. Five compositions of blends (alumina, zirconia, hydroxyapatite, tricalcium phosphate, chitosan), in addition to the base cement consisting of homogeneous CAC were evaluated as a substitute for bone repair. Additionally, the monotypic biofilm formation was assessed. Creation of a monocortical bone defect was performed on the femurs of rats, which were randomly filled with the different materials. The polymethylmethacrylate (PMMA) group was used as a control. All the animals were euthanized 04 weeks after the surgery procedure. Subsequently, computerized microtomography, histological and histomorphometric analyses were performed to verify the bone repair. To evaluate the formation of biofilms, reference strains of Staphylococcus aureus, Streptococcus mutans and Pseudomonas aeruginosa were cultured on the samples, and the biofilm formed was quantified by the MTT method. In the microtomography and histomorphometry results, it was observed that the blends exhibited better results than the control group, with statistically significant differences (p < 0.05) for alumina and zirconia blends. In the biofilm formation, a statistical difference (p < 0.05) in general was observed between the alumina blends and the control group (p < 0.05). It was concluded that CAC-based blends with alumina and zirconia are promising for use in fillings for bone repair.
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Affiliation(s)
- Luana Marotta Reis de Vasconcellos
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology of São José dos Campos, University Estadual Paulista-UNESP, Sao Jose dos Campos, SP, Brazil.
| | - Kaíke Lessa Camporês
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology of São José dos Campos, University Estadual Paulista-UNESP, Sao Jose dos Campos, SP, Brazil
| | | | - Marilia Nanni Vieira
- Graduated student of Institute of Science and Technology of São José dos Campos, University Estadual Paulista-UNESP, Sao Jose dos Campos, SP, Brazil
| | - Ivone Regina de Oliveira
- Institute for Research and Development, University of Vale do Paraíba, São José dos Campos, SP, Brazil
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Benetti F, Queiroz ÍODA, Cosme-Silva L, Conti LC, Oliveira SHPD, Cintra LTA. Cytotoxicity, Biocompatibility and Biomineralization of a New Ready-for-Use Bioceramic Repair Material. Braz Dent J 2019; 30:325-332. [PMID: 31340221 DOI: 10.1590/0103-6440201902457] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Accepted: 02/05/2019] [Indexed: 11/21/2022] Open
Abstract
New mineral trioxide aggregate (MTA) formulations are constantly introduced in the market, usually in a powder-and-liquid form. Bioceramic (Bio-C) Repair is a ready-for-use material suggested as substitute for MTA, but its properties need to be studied. This study evaluated the cytotoxicity, biocompatibility and biomineralization of Bio-C Repair compared to MTA Repair High-Plasticity (MTA-HP) and white MTA-Angelus (MTA-Ang). L929 fibroblasts were exposed to material-extracted (undiluted, ½ and ¼ dilutions; 6, 24 and 48h). Polyethylene tubes with material or empty (control) were implanted in the subcutaneous tissue of rats. After 7 and 30 days (n=8), the specimens were removed for analysis (hematoxylin-eosin, von Kossa and polarized light). Cytotoxicity data were statistically analyzed by two-way ANOVA, and biocompatibility data by Kruskal-Wallis and Dunn tests (p<0.05). The cells exposed to the materials had greater viability at most of the periods compared with control (p<0.05). The undiluted and ½ dilutions of MTA-HP extract showed higher cytocompatibility than Bio-C Repair at 6 h and with the ¼ dilution at 24 h (p<0.05); the white MTA-Ang showed higher cytocompatibility than Bio-C Repair at most of periods (p<0.05). The undiluted white MTA-Ang extract had higher cytocompatibility at 6 and 24h than MTA-HP, and with ½ dilution at 24h (p<0.05). The materials' cytocompatibility was similar at 48h for most dilutions (p>0.05). At 7 and 30 days, the groups had moderate and mild inflammation, respectively (p>0.05). All materials showed positive structures for von Kossa and polarized light. In conclusion, Bio-C Repair had similar cytocompatibility to MTA-based materials is biocompatible and induces biomineralization.
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Affiliation(s)
- Francine Benetti
- Endodontics, School of Dentistry, UNESP - Universidade Estadual Paulista, Araçatuba, SP, Brazil.,Restorative Dentistry, School of Dentistry, UFMG - Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | | | - Leopoldo Cosme-Silva
- Endodontics, School of Dentistry, UNESP - Universidade Estadual Paulista, Araçatuba, SP, Brazil
| | - Leticia Citelli Conti
- Endodontics, School of Dentistry, UNESP - Universidade Estadual Paulista, Araçatuba, SP, Brazil
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Synergistic potential of 1α,25-dihydroxyvitamin D3 and calcium-aluminate-chitosan scaffolds with dental pulp cells. Clin Oral Investig 2019; 24:663-674. [PMID: 31119382 DOI: 10.1007/s00784-019-02906-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 04/04/2019] [Indexed: 01/08/2023]
Abstract
OBJECTIVES This study aimed to develop a porous chitosan-calcium-aluminate scaffold (CH-AlCa) in combination with a bioactive dosage of 1α,25-dihydroxyvitamin D3 (1α,25VD), to be used as a bioactive substrate capable to increase the odontogenic potential of human dental pulp cells (HDPCs). MATERIALS AND METHODS The porous CH-AlCa was developed by the incorporation of an AlCa suspension into a CH solution under vigorous agitation, followed by phase separation at low temperature. Scaffold architecture, porosity, and calcium release were evaluated. Thereafter, the synergistic potential of CH-AlCa and 1 nM 1α,25VD, selected by a dose-response assay, for HDPCs seeded onto the materials was assessed. RESULTS The CH-AlCa featured an organized and interconnected pore network, with increased porosity in comparison with that of plain chitosan scaffolds (CH). Increased odontoblastic phenotype expression on the human dental pulp cell (HDPC)/CH and HDPC/CH-AlCa constructs in the presence of 1 nM 1α,25VD was detected, since alkaline phosphatase activity, mineralized matrix deposition, dentin sialophosphoprotein/dentin matrix acidic phosphoprotein 1 mRNA expression, and cell migration were overstimulated. This drug featured a synergistic effect with CH-AlCa, since the highest values of cell migration and odontoblastic markers expression were observed in this experimental condition. CONCLUSIONS The experimental CH-AlCa scaffold increases the chemotaxis and regenerative potential of HDPCs, and the addition of low-dosage 1α,25VD to this scaffold enhances the potential of these cells to express an odontoblastic phenotype. CLINICAL RELEVANCE Chitosan scaffolds enriched with calcium-aluminate in association with low dosages of 1α,25-dihydroxyvitamin D3 provide a highly bioactive microenvironment for dental pulp cells prone to dentin regeneration, thus providing potential as a cell-free tissue engineering system for direct pulp capping.
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Almeida LH, Gomes APN, Gastmann AH, Pola NM, Moraes RR, Morgental RD, Cava SS, Felix AOC, Pappen FG. Bone tissue response to an MTA-based endodontic sealer, and the effect of the addition of calcium aluminate and silver particles. Int Endod J 2019; 52:1446-1456. [PMID: 31034099 DOI: 10.1111/iej.13135] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 04/24/2019] [Indexed: 10/26/2022]
Abstract
AIM To evaluate bone tissue reactions in rats to an MTA-based endodontic sealer with and without the addition of various concentrations of C3A or C3A + Ag. METHODOLOGY Bone tissue reactions were evaluated in 45 Wistar rats after 7, 30 and 90 days (n = 5 per period). Three surgical cavities were prepared on the right femur and filled with 0.2 mL MTA Fillapex, MTA Fillapex + C3A and C3A + Ag at various concentrations: AH Plus (Dentsply DeTrey GmbH, Konstanz, Germany), EndoSequence BC (Brasseler USA, Savannah, GA, USA) or no sealer (negative control). By the end of each experimental period, animals were randomly euthanized. The samples were histologically processed and analysed using a light microscope. The presence of inflammatory cells, fibres and hard tissue barrier formation was evaluated. Data were analysed statistically using nonparametric tests to compare the differences between groups. Multiple groups were compared using the Kruskal-Wallis and Mann-Whitney U-tests with a Bonferroni correction at P = 0.05. RESULTS The inflammatory response significantly decreased from 30 to 90 days (P < 0.05). Fibre condensation was similar amongst the groups at 07 and 30 days after intervention (P > 0.05). At 90 days, however, fibres were absent in most specimens of EndoSequence BC Sealer, AH Plus, MTA Fillapex and the control group, whilst they were still observed in samples of the modified sealers (P < 0.05). At 90 days, all specimens of AH Plus, EndoSequence BC Sealer and control group had complete formation of hard tissue barrier. In the MTA Fillapex group, as well as in the modified sealers groups, partial deposition of mineralized tissue was noticed. CONCLUSION The hypothesis tested that the incorporation of C3A and C3A + Ag particles to MTA Fillapex would improve bone tissue repair was partially accepted, since modified MTA Fillapex did not have the same repair potential as the commercial bioceramic material.
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Affiliation(s)
- L H Almeida
- Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, Brazil
| | - A P N Gomes
- Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, Brazil
| | - A H Gastmann
- Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, Brazil
| | - N M Pola
- Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, Brazil
| | - R R Moraes
- Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, Brazil
| | - R D Morgental
- Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, Brazil.,Department of Stomatology, School of Dentistry, Federal University of Santa Maria, Santa Maria, Brazil
| | - S S Cava
- School of Materials Engineering, Federal University of Pelotas, Pelotas, Brazil
| | - A O C Felix
- School of Materials Engineering, Federal University of Pelotas, Pelotas, Brazil
| | - F G Pappen
- Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, Brazil
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Walsh RM, Woodmansey KF, He J, Svoboda KK, Primus CM, Opperman LA. Histology of NeoMTA Plus and Quick-Set2 in Contact with Pulp and Periradicular Tissues in a Canine Model. J Endod 2019; 44:1389-1395. [PMID: 30144833 DOI: 10.1016/j.joen.2018.05.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 04/10/2018] [Accepted: 05/04/2018] [Indexed: 12/13/2022]
Abstract
INTRODUCTION NeoMTA Plus (Avalon Biomed Inc, Bradenton, FL) is a tricalcium silicate material similar to the first mineral trioxide aggregate product, ProRoot MTA (Dentsply Sirona, York, PA), but with improvements such as decreased setting time, increased ion release, increased water sorption, and nonstaining radiopacifiers. Quick-Set2 (Avalon Biomed Inc) is a newly formulated calcium aluminosilicate material that has a faster setting time and increased acid resistance and is nonstaining. The purpose of this study was to compare the healing of pulpal and periapical tissues in dogs after exposure to NeoMTA Plus and Quick-Set2 after pulpotomy and root-end surgery procedures. METHODS Seventy-two teeth (36 for each procedure) in 6 beagle dogs received pulpotomy or root-end surgery using either NeoMTA Plus or Quick-Set2. The dogs were sacrificed at 90 days, and the teeth and surrounding tissues were prepared for histologic evaluation. Sixty teeth were evaluated and scored histologically (29 with pulpotomies and 31 with root-end resections). Specimens were scored for inflammation, quality and thickness of dentin bridging, pulp tissue response, cementum and periodontal ligament formation, and apical bone healing. RESULTS Both materials displayed favorable healing at 90 days. The only significant difference was the quality of dentin bridge formation in pulpotomies using NeoMTA Plus compared with Quick-Set2. CONCLUSIONS Quick-Set2 and NeoMTA Plus had similar effects on inflammation, pulp response, periodontal ligament and cementum formation, and apical tissue healing in dogs. NeoMTA Plus had superior dentin bridge quality compared with Quick-Set2.
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Affiliation(s)
- Ryan M Walsh
- Department of Biomedical Sciences, Center for Craniofacial Research and Diagnosis, Texas A&M University College of Dentistry, Texas.
| | - Karl F Woodmansey
- Center for Advanced Dental Education, St. Louis University, St. Louis, Missouri
| | - Jianing He
- Endodontics, Center for Craniofacial Research and Diagnosis, Texas A&M University College of Dentistry, Texas
| | - Kathy K Svoboda
- Department of Biomedical Sciences, Center for Craniofacial Research and Diagnosis, Texas A&M University College of Dentistry, Texas
| | - Carolyn M Primus
- Lake Erie College of Osteopathic Medicine, School of Dental Medicine, Bradenton, Florida
| | - Lynne A Opperman
- Department of Biomedical Sciences, Center for Craniofacial Research and Diagnosis, Texas A&M University College of Dentistry, Texas
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Moraes PCD, Marques ICDS, Basso FG, Rossetto HL, Pires-de-Souza FDCP, Costa CADS, Garcia LDFR. Repair of Bone Defects with Chitosan-Collagen Biomembrane and Scaffold Containing Calcium Aluminate Cement. Braz Dent J 2018; 28:287-295. [PMID: 29297548 DOI: 10.1590/0103-6440201601454] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 04/03/2017] [Indexed: 12/21/2022] Open
Abstract
Innovative biomaterials can provide a promising new direction for the treatment of bone defects, stimulating a proper repair process, with no damage to adjacent tissues. The purpose of this in vivo study was to evaluate the biocompatibility and the osteoinductive capacity of chitosan-collagen biomembrane and scaffold containing calcium aluminate cement. Eighteen New Zealand white rabbits (Oryctolagus cuniculus) were distributed according to the experimental times of analysis (7, 15 and 30 days). Four bone defects were created in the rabbits calvaria, which were individually filled with the biomembrane, scaffold, blood clot (negative control) and autologous bone (positive control). Histopathological analysis was performed using optical microscope at 32´, 64´, 125´ and 320´ magnifications. Cell response to inflammation and new bone tissue formation was quantified using a score system. The biomembrane group presented greater inflammatory response at 15 days, with significant difference to autologous bone group (p<0.05). There was no statistically significant difference for foreign body type reaction among groups (p>0.05). Concerning new bone formation, linear closure of the defect area was observed more evidently in the group with autologous bone. The scaffold group presented similar results compared with the autologous bone group at 30 days (p>0.05). Both tested biomaterials presented similar biocompatibility compared with the control groups. In addition, the biomembrane and scaffold presented similar osteoinductive capacity, stimulating bone repair process in the course of the experimental time intervals.
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Affiliation(s)
- Paola Castro de Moraes
- Department of Clinics and Surgery, Jaboticabal School of Agricultural and Veterinary Sciences, UNESP - Universidade Estadual Paulista, Jaboticabal, SP, Brazil
| | | | - Fernanda Gonçalves Basso
- Department of Physiology and Pathology, Araraquara Dental School, UNESP - Universidade Estadual Paulista, Araraquara, SP, Brazil
| | | | | | - Carlos Alberto de Souza Costa
- Department of Physiology and Pathology, Araraquara Dental School, UNESP - Universidade Estadual Paulista, Araraquara, SP, Brazil
| | - Lucas da Fonseca Roberti Garcia
- Department of Dentistry - Endodontics Division, Health Sciences Center, UFSC - Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
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Almeida LHS, Moraes RR, Morgental RD, Cava SS, Rosa WLO, Rodrigues P, Ribeiro AS, Só M, Pappen FG. Synthesis of silver-containing calcium aluminate particles and their effects on a MTA-based endodontic sealer. Dent Mater 2018; 34:e214-e223. [DOI: 10.1016/j.dental.2018.05.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 03/29/2018] [Accepted: 05/09/2018] [Indexed: 10/16/2022]
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Garcia LDFR, Huck C, Magalhães FAC, Souza PPCD, Souza Costa CAD. Systemic effect of mineral aggregate-based cements: histopathological analysis in rats. J Appl Oral Sci 2018; 25:620-630. [PMID: 29211283 PMCID: PMC5701532 DOI: 10.1590/1678-7757-2016-0634] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2016] [Accepted: 04/19/2017] [Indexed: 11/29/2022] Open
Abstract
Objective: Several studies reported the local tissue reaction caused by mineral aggregate-based cements. However, few studies have investigated the systemic effects promoted by these cements on liver and kidney when directly applied to connective tissue. The purpose of this in vivo study was to investigate the systemic effect of mineral aggregate-based cements on the livers and kidneys of rats. Material and Methods: Samples of Mineral Trioxide Aggregate (MTA) and a calcium aluminate-based cement (EndoBinder) containing different radiopacifiers were implanted into the dorsum of 40 rats. After 7 and 30 d, samples of subcutaneous, liver and kidney tissues were submitted to histopathological analysis. A score (0-3) was used to grade the inflammatory reaction. Blood samples were collected to evaluate changes in hepatic and renal functions of animals. Results: The moderate inflammatory reaction (2) observed for 7 d in the subcutaneous tissue decreased with time for all cements. The thickness of inflammatory capsules also presented a significant decrease with time (P<.05). Systemically, all cements caused adverse inflammatory reactions in the liver and kidney, being more evident for MTA, persisting until the end of the analysis. Liver functions increased significantly for MTA during 30 d (P<.05). Conclusion: The different cements induced to a locally limited inflammatory reaction. However, from the systemic point of view, the cements promoted significant inflammatory reactions in the liver and kidney. For MTA, the reactions were more accentuated.
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Affiliation(s)
- Lucas da Fonseca Roberti Garcia
- Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Departamento de Odontologia, Área de Endodontia, Florianópolis, SC, Brasil
| | - Claudia Huck
- Univ. Estadual Paulista, Faculdade de Odontologia de Araraquara, Departamento de Odontologia Restauradora, Araraquara, SP, Brasil
| | | | - Pedro Paulo Chaves de Souza
- Univ. Estadual Paulista, Faculdade de Odontologia de Araraquara, Departamento de Fisiologia e Patologia, Araraquara, SP, Brasil
| | - Carlos Alberto de Souza Costa
- Univ. Estadual Paulista, Faculdade de Odontologia de Araraquara, Departamento de Fisiologia e Patologia, Araraquara, SP, Brasil
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Niu LN, Pei DD, Morris M, Jiao K, Huang XQ, Primus CM, Susin LF, Bergeron BE, Pashley DH, Tay FR. Mineralogenic characteristics of osteogenic lineage-committed human dental pulp stem cells following their exposure to a discoloration-free calcium aluminosilicate cement. Dent Mater 2016; 32:1235-1247. [DOI: 10.1016/j.dental.2016.07.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 07/11/2016] [Accepted: 07/18/2016] [Indexed: 10/21/2022]
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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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Huang MH, Shen YF, Hsu TT, Huang TH, Shie MY. Physical characteristics, antimicrobial and odontogenesis potentials of calcium silicate cement containing hinokitiol. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 65:1-8. [DOI: 10.1016/j.msec.2016.04.016] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 04/01/2016] [Accepted: 04/06/2016] [Indexed: 01/13/2023]
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