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Nain A, Chakraborty S, Barman SR, Gavit P, Indrakumar S, Agrawal A, Lin ZH, Chatterjee K. Progress in the development of piezoelectric biomaterials for tissue remodeling. Biomaterials 2024; 307:122528. [PMID: 38522326 DOI: 10.1016/j.biomaterials.2024.122528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 02/15/2024] [Accepted: 03/08/2024] [Indexed: 03/26/2024]
Abstract
Piezoelectric biomaterials have demonstrated significant potential in the past few decades to heal damaged tissue and restore cellular functionalities. Herein, we discuss the role of bioelectricity in tissue remodeling and explore ways to mimic such tissue-like properties in synthetic biomaterials. In the past decade, biomedical engineers have adopted emerging functional biomaterials-based tissue engineering approaches using innovative bioelectronic stimulation protocols based on dynamic stimuli to direct cellular activation, proliferation, and differentiation on engineered biomaterial constructs. The primary focus of this review is to discuss the concepts of piezoelectric energy harvesting, piezoelectric materials, and their application in soft (skin and neural) and hard (dental and bone) tissue regeneration. While discussing the prospective applications as an engineered tissue, an important distinction has been made between piezoceramics, piezopolymers, and their composites. The superiority of piezopolymers over piezoceramics to circumvent issues such as stiffness mismatch, biocompatibility, and biodegradability are highlighted. We aim to provide a comprehensive review of the field and identify opportunities for the future to develop clinically relevant and state-of-the-art biomaterials for personalized and remote health care.
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Affiliation(s)
- Amit Nain
- Department of Material Engineering, Indian Institute of Science, Bangalore, 560012, Karnataka, India.
| | - Srishti Chakraborty
- Department of Material Engineering, Indian Institute of Science, Bangalore, 560012, Karnataka, India
| | - Snigdha Roy Barman
- Department of Bioengineering, Indian Institute of Science, Bangalore, 560012, Karnataka, India
| | - Pratik Gavit
- Department of Material Engineering, Indian Institute of Science, Bangalore, 560012, Karnataka, India; School of Bio Science and Technology, Vellore Institute of Technology, Vellore, 632014, India
| | - Sushma Indrakumar
- Department of Material Engineering, Indian Institute of Science, Bangalore, 560012, Karnataka, India
| | - Akhilesh Agrawal
- Department of Material Engineering, Indian Institute of Science, Bangalore, 560012, Karnataka, India
| | - Zong-Hong Lin
- Department of Biomedical Engineering, National Taiwan University, Taipe, 10617, Taiwan.
| | - Kaushik Chatterjee
- Department of Material Engineering, Indian Institute of Science, Bangalore, 560012, Karnataka, India; Department of Bioengineering, Indian Institute of Science, Bangalore, 560012, Karnataka, India.
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Li J, Zhao X, Xia Y, Qi X, Jiang C, Xiao Y, Jiang F, Jiang X, Yuan G. Strontium-Containing Piezoelectric Biofilm Promotes Dentin Tissue Regeneration. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2313419. [PMID: 38335452 DOI: 10.1002/adma.202313419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 02/04/2024] [Indexed: 02/12/2024]
Abstract
It remains an obstacle to induce the regeneration of hard dentin tissue in clinical settings. To overcome this, a P(VDF-TrFE) piezoelectric film with 2 wt% SrCl2 addition is designed. The biofilm shows a high flexibility, a harmonious biocompatibility, and a large piezoelectric d33 coefficient of 14 pC N-1, all contributing to building an electric microenvironment that favor the recruitment of dental pulp stem cells (DPSCs) and their differentiation into odontoblasts during normal chewing, speaking, etc. On the other hand, the strontium ions can be gradually released from the film, thus promoting DPSC odonto-differentiation. In vivo experiments also demonstrate that the film induces the release of dentin minerals and regeneration of dentin tissue. In the large animal dentin defect models, this piezoelectric film induces in situ dentin tissue formation effectively over a period of three months. This study illustrates a therapeutic potential of the piezoelectric film to improve dentin tissue repair in clinical settings.
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Affiliation(s)
- Jin Li
- Jiangsu Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Department of General Dentistry Affiliated Hospital of Stomatology Nanjing Medical University, Nanjing, 210029, P. R. China
| | - Xuefeng Zhao
- School of Materials Science and Engineering, Nanjing University of Science and Technology. No. 200, Xiaolingwei Street, Nanjing, 210094, China
| | - Yang Xia
- Jiangsu Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Department of Prosthodontics Affiliated Hospital of Stomatology Nanjing Medical University, Nanjing, 210029, P. R. China
| | - Xuanyu Qi
- College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Engineering Research Center of Advanced Dental Technology and Materials, Shanghai, 200011, China
| | - Chenghao Jiang
- Jiangsu Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Department of General Dentistry Affiliated Hospital of Stomatology Nanjing Medical University, Nanjing, 210029, P. R. China
| | - Yuhuan Xiao
- Jiangsu Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Department of General Dentistry Affiliated Hospital of Stomatology Nanjing Medical University, Nanjing, 210029, P. R. China
| | - Fei Jiang
- Jiangsu Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Department of General Dentistry Affiliated Hospital of Stomatology Nanjing Medical University, Nanjing, 210029, P. R. China
| | - Xinquan Jiang
- College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Engineering Research Center of Advanced Dental Technology and Materials, Shanghai, 200011, China
| | - Guoliang Yuan
- School of Materials Science and Engineering, Nanjing University of Science and Technology. No. 200, Xiaolingwei Street, Nanjing, 210094, China
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Jiang W, Wang Z, Zhou Y, Shen Y, Yen E, Zou B. Bioceramic micro-fillers reinforce antibiofilm and remineralization properties of clear aligner attachment materials. Front Bioeng Biotechnol 2024; 11:1346959. [PMID: 38318418 PMCID: PMC10840140 DOI: 10.3389/fbioe.2023.1346959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 12/28/2023] [Indexed: 02/07/2024] Open
Abstract
Introduction: Clear aligners, while offering a more hygienic alternative to fixed appliances, are still associated with challenges including plaque accumulation and enamel demineralization. The aim of the present study was to investigate the antibiofilm and remineralization effectiveness of innovative flowable composite attachments containing bioceramic micro-fillers. Methods: Four experimental attachments were formulated and bonded to human enamel specimens: 3M Filtek Supreme flowable composite (Filtek SF) + 10% bioactive glass 45S5 (BAG), Filtek SF + 30% BAG, Filtek SF + 10% Bredigite (BRT), Filtek SF + 30% BRT. Plaque biofilms were grown on the bonded enamel using a standardized protocol and the biofilm-killing effect was assessed by confocal laser scanning microscopy and scanning electron microscopy. Vickers microhardness was measured to evaluate the remineralization effect of the attachments containing bioceramic fillers after acid challenge. Shear bond test was performed to assess the bonding strength. Results: Attachments with bioceramic fillers significantly inhibited plaque biofilm growth in 3 weeks on enamel, contributing over 20% bacterial cell killing in 10% filler groups and over 30% killing in 30% filler groups. All four experimental groups demonstrated significantly higher microhardness values than the control group without fillers on the attachment side. The shear bonding strength was not compromised in the attachments with micro-fillers. Discussion: Proper incorporation of bioceramic micro-fillers in attachments provides an innovative approach for clear aligner therapy with reinforced antibiofilm and remineralization effects without weakening shear bonding strength.
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Affiliation(s)
- Wenhui Jiang
- Division of Orthodontics, Department of Oral Health Science, Faculty of Dentistry, The University of British Columbia, Vancouver, BC, Canada
| | - Zhejun Wang
- Division of Endodontics, Department of Oral Biological and Medical Sciences, Faculty of Dentistry, The University of British Columbia, Vancouver, BC, Canada
| | - Yinghong Zhou
- School of Dentistry, The University of Queensland, Brisbane, QLD, Australia
| | - Ya Shen
- Division of Endodontics, Department of Oral Biological and Medical Sciences, Faculty of Dentistry, The University of British Columbia, Vancouver, BC, Canada
| | - Edwin Yen
- Division of Orthodontics, Department of Oral Health Science, Faculty of Dentistry, The University of British Columbia, Vancouver, BC, Canada
| | - Bingshuang Zou
- Division of Orthodontics, Department of Oral Health Science, Faculty of Dentistry, The University of British Columbia, Vancouver, BC, Canada
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Min Q, Gao Y, Wang Y. Bioelectricity in dental medicine: a narrative review. Biomed Eng Online 2024; 23:3. [PMID: 38172866 PMCID: PMC10765628 DOI: 10.1186/s12938-023-01189-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 12/05/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND Bioelectric signals, whether exogenous or endogenous, play crucial roles in the life processes of organisms. Recently, the significance of bioelectricity in the field of dentistry is steadily gaining greater attention. OBJECTIVE This narrative review aims to comprehensively outline the theory, physiological effects, and practical applications of bioelectricity in dental medicine and to offer insights into its potential future direction. It attempts to provide dental clinicians and researchers with an electrophysiological perspective to enhance their clinical practice or fundamental research endeavors. METHODS An online computer search for relevant literature was performed in PubMed, Web of Science and Cochrane Library, with the keywords "bioelectricity, endogenous electric signal, electric stimulation, dental medicine." RESULTS Eventually, 288 documents were included for review. The variance in ion concentration between the interior and exterior of the cell membrane, referred to as transmembrane potential, forms the fundamental basis of bioelectricity. Transmembrane potential has been established as an essential regulator of intercellular communication, mechanotransduction, migration, proliferation, and immune responses. Thus, exogenous electric stimulation can significantly alter cellular action by affecting transmembrane potential. In the field of dental medicine, electric stimulation has proven useful for assessing pulp condition, locating root apices, improving the properties of dental biomaterials, expediting orthodontic tooth movement, facilitating implant osteointegration, addressing maxillofacial malignancies, and managing neuromuscular dysfunction. Furthermore, the reprogramming of bioelectric signals holds promise as a means to guide organism development and intervene in disease processes. Besides, the development of high-throughput electrophysiological tools will be imperative for identifying ion channel targets and precisely modulating bioelectricity in the future. CONCLUSIONS Bioelectricity has found application in various concepts of dental medicine but large-scale, standardized, randomized controlled clinical trials are still necessary in the future. In addition, the precise, repeatable and predictable measurement and modulation methods of bioelectric signal patterns are essential research direction.
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Affiliation(s)
- Qingqing Min
- Department of Endodontics, Wuxi Stomatology Hospital, Wuxi, 214000, China
| | - Yajun Gao
- Department of Endodontics, Wuxi Stomatology Hospital, Wuxi, 214000, China
| | - Yao Wang
- Department of Implantology, Wuxi Stomatology Hospital, Wuxi, 214000, China.
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Sengupta D, Naskar S, Mandal D. Reactive oxygen species for therapeutic application: Role of piezoelectric materials. Phys Chem Chem Phys 2023; 25:25925-25941. [PMID: 37727027 DOI: 10.1039/d3cp01711g] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Abstract
This perspective article emphasizes the significant role of reactive oxygen species (ROS) in in vivo remedial therapy of various diseases and complications, capitalizing on their potential reactivity. Among the various influencers, herein, piezoelectric materials driven ROS generation activity is primarily considered. Intrinsic non-centrosymmetry of piezoelectric materials makes them suitable for distinct dipole formation in the presence of external mechanical stimuli. Such characteristics prompt the positioning of opposite charged carriers to execute associated redox transformations that effectively participate to generate ROS in the aqueous media of the cell cytoplasm, organelles and nucleus. The immense reactivity of piezoelectric material driven ROS is fostered to terminate cellular toxicity or curtail tumor cell growth, due to their higher specificity. This perspective considers the conjugated performance of piezoelectric materials and ultrasound which can remotely generate electrical charges that promote ROS production for therapeutic application. In particular, a substantial synopsis is provided for the remedial activity of numerous piezocatalytic materials in tumor cell apoptosis, antibacterial treatment, dental care and neurological disorders. Subsequently, the report precisely demonstrates the methods involving various spectrophotometric approaches for the analysis of the ROS. Finally, the key challenges of piezoelectric material-based therapy are discussed and systematic future progress is outlined.
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Affiliation(s)
- Dipanjan Sengupta
- Quantum Materials and Devices Unit, Institute of Nano Science and Technology, Knowledge City, Sector81, Mohali 140306, India.
- Department of Chemistry, Faculty of Engineering, Teerthanker Mahaveer University, Moradabad 244001, India
| | - Sudip Naskar
- Quantum Materials and Devices Unit, Institute of Nano Science and Technology, Knowledge City, Sector81, Mohali 140306, India.
| | - Dipankar Mandal
- Quantum Materials and Devices Unit, Institute of Nano Science and Technology, Knowledge City, Sector81, Mohali 140306, India.
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Melo M, Garcia I, Mokeem L, Weir M, Xu H, Montoya C, Orrego S. Developing Bioactive Dental Resins for Restorative Dentistry. J Dent Res 2023; 102:1180-1190. [PMID: 37555431 PMCID: PMC11066520 DOI: 10.1177/00220345231182357] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2023] Open
Abstract
Despite its reputation as the most widely used restorative dental material currently, resin-based materials have acknowledged shortcomings. As most systematic survival studies of resin composites and dental adhesives indicate, secondary caries is the foremost reason for resin-based restoration failure and life span reduction. In subjects with high caries risk, the microbial community dominated by acidogenic and acid-tolerant bacteria triggers acid-induced deterioration of the bonding interface and/or bulk material and mineral loss around the restorations. In addition, resin-based materials undergo biodegradation in the oral cavity. As a result, the past decades have seen exponential growth in developing restorative dental materials for antimicrobial applications addressing secondary caries prevention and progression. Currently, the main challenge of bioactive resin development is the identification of efficient and safe anticaries agents that are detrimental free to final material properties and show satisfactory long-term performance and favorable clinical translation. This review centers on the continuous efforts to formulate novel bioactive resins employing 1 or multiple agents to enhance the antibiofilm efficacy or achieve multiple functionalities, such as remineralization and antimicrobial activity antidegradation. We present a comprehensive synthesis of the constraints and challenges encountered in the formulation process, the clinical performance-related prerequisites, the materials' intended applicability, and the current advancements in clinical implementation. Moreover, we identify crucial vulnerabilities that arise during the development of dental materials, including particle aggregation, alterations in color, susceptibility to hydrolysis, and loss of physicomechanical core properties of the targeted materials.
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Affiliation(s)
- M.A.S. Melo
- Division of Operative Dentistry, Department of General Dentistry, University of Maryland School of Dentistry, Baltimore, MD, USA
- Dental Biomedical Sciences PhD Program, University of Maryland School of Dentistry, Baltimore, MD, USA
| | - I.M. Garcia
- Division of Operative Dentistry, Department of General Dentistry, University of Maryland School of Dentistry, Baltimore, MD, USA
| | - L. Mokeem
- Dental Biomedical Sciences PhD Program, University of Maryland School of Dentistry, Baltimore, MD, USA
| | - M.D. Weir
- Biomaterials & Tissue Engineering Division, Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD, USA
| | - H.H.K. Xu
- Biomaterials & Tissue Engineering Division, Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD, USA
| | - C. Montoya
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, PA, USA
| | - S. Orrego
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, PA, USA
- Bioengineering Department, College of Engineering, Temple University, Philadelphia, PA, USA
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Roldan L, Montoya C, Solanki V, Cai KQ, Yang M, Correa S, Orrego S. A Novel Injectable Piezoelectric Hydrogel for Periodontal Disease Treatment. ACS APPLIED MATERIALS & INTERFACES 2023; 15:43441-43454. [PMID: 37672788 DOI: 10.1021/acsami.3c08336] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
Periodontal disease is a multifactorial, bacterially induced inflammatory condition characterized by the progressive destruction of periodontal tissues. The successful nonsurgical treatment of periodontitis requires multifunctional technologies offering antibacterial therapies and promotion of bone regeneration simultaneously. For the first time, in this study, an injectable piezoelectric hydrogel (PiezoGEL) was developed after combining gelatin methacryloyl (GelMA) with biocompatible piezoelectric fillers of barium titanate (BTO) that produce electrical charges when stimulated by biomechanical vibrations (e.g., mastication, movements). We harnessed the benefits of hydrogels (injectable, light curable, conforms to pocket spaces, biocompatible) with the bioactive effects of piezoelectric charges. A thorough biomaterial characterization confirmed piezoelectric fillers' successful integration with the hydrogel, photopolymerizability, injectability for clinical use, and electrical charge generation to enable bioactive effects (antibacterial and bone tissue regeneration). PiezoGEL showed significant reductions in pathogenic biofilm biomass (∼41%), metabolic activity (∼75%), and the number of viable cells (∼2-3 log) compared to hydrogels without BTO fillers in vitro. Molecular analysis related the antibacterial effects to be associated with reduced cell adhesion (downregulation of porP and fimA) and increased oxidative stress (upregulation of oxyR) genes. Moreover, PiezoGEL significantly enhanced bone marrow stem cell (BMSC) viability and osteogenic differentiation by upregulating RUNX2, COL1A1, and ALP. In vivo, PiezoGEL effectively reduced periodontal inflammation and increased bone tissue regeneration compared to control groups in a mice model. Findings from this study suggest PiezoGEL to be a promising and novel therapeutic candidate for the treatment of periodontal disease nonsurgically.
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Affiliation(s)
- Lina Roldan
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, Pennsylvania 19140, United States
- Bioengineering Research Group (GIB), Universidad EAFIT, Medellín 050037, Colombia
| | - Carolina Montoya
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, Pennsylvania 19140, United States
| | - Varun Solanki
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, Pennsylvania 19140, United States
| | - Kathy Q Cai
- Histopathology Facility, Fox Chase Cancer, Temple University, Philadelphia, Pennsylvania 19140, United States
| | - Maobin Yang
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, Pennsylvania 19140, United States
- Department of Endodontology, Kornberg School of Dentistry, Temple University, Philadelphia, Pennsylvania 19140, United States
| | - Santiago Correa
- Bioengineering Research Group (GIB), Universidad EAFIT, Medellín 050037, Colombia
| | - Santiago Orrego
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, Pennsylvania 19140, United States
- Bioengineering Department, College of Engineering, Temple University. Philadelphia, Pennsylvania 19122, United States
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Ren J, Guo X. The germicidal effect, biosafety and mechanical properties of antibacterial resin composite in cavity filling. Heliyon 2023; 9:e19078. [PMID: 37662807 PMCID: PMC10474440 DOI: 10.1016/j.heliyon.2023.e19078] [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: 04/15/2023] [Revised: 07/22/2023] [Accepted: 08/10/2023] [Indexed: 09/05/2023] Open
Abstract
In recent years, dental resin materials have become increasingly popular for cavity filling. However, these materials can shrink during polymerization, leading to microleakages that enable bacteria to erode tooth tissue and cause secondary caries. As a result, there is great clinical demand for the development of antibacterial resins. The principle of antibacterial resin includes contact killing and filler-release killing of bacteria. For contact killing, quaternary ammonium salts (QACs) and antibacterial peptides (AMPs) can be added. For filler-release killing, chlorhexidine (CHX) and nanoparticles are used. These antibacterial agents are effective against gram-positive bacteria, gram-negative bacteria, fungi, and more. Among them, QACs has a lasting antibacterial effect, and silver nanoparticles even have a certain ability to kill viruses. Biocompatibility-wise, QACs, AMPs, and CHX have low cytotoxicity to cells when added into the resin. However, nanoparticles with smaller particle sizes have higher cytotoxicity. In terms of mechanical properties, QACs, AMPs, and CHX do not negatively affect the resin. However, the addition of magnesium oxide can have a negative impact. This paper reviews the types and antibacterial principles of commonly used antibacterial resins in recent years, evaluates their antibacterial effect, biological safety, and mechanical properties, and provides references for selecting clinical filling materials.
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Affiliation(s)
- Jiamu Ren
- Yanbian University, Jilin, 133002, China
| | - Xinwei Guo
- Peking University, Haidian District, Beijing, 100871, China
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Fernandes BF, Silva N, Marques JF, Da Cruz MB, Tiainen L, Gasik M, Carvalho Ó, Silva FS, Caramês J, Mata A. Bio-Piezoelectric Ceramic Composites for Electroactive Implants-Biological Performance. Biomimetics (Basel) 2023; 8:338. [PMID: 37622943 PMCID: PMC10452837 DOI: 10.3390/biomimetics8040338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/26/2023] [Accepted: 07/28/2023] [Indexed: 08/26/2023] Open
Abstract
Barium titanate (BaTiO3) piezoelectric ceramic may be a potential alternative for promoting osseointegration due to its piezoelectric properties similar to bone electric potentials generated in loading function. In this sense, the aim of this in vitro study was to evaluate the cellular response of human osteoblasts and gingival fibroblasts as well as the impact on S. oralis when in contact with BaTiO3 functionalized zirconia implant surfaces with piezoelectric properties. Zirconia discs with BaTiO3 were produced and contact poling (piezo activation) was performed. Osteoblasts (hFOB 1.19), fibroblasts (HGF hTERT) and S. oralis were culture on discs. Cell viability and morphology, cell differentiation markers, bacterial adhesion and growth were evaluated. The present study suggests that zirconia composite surfaces with the addition of piezoelectric BaTiO3 are not cytotoxic to peri-implant cells. Also, they seem to promote a faster initial osteoblast differentiation. Moreover, these surfaces may inhibit the growth of S. oralis by acting as a bacteriostatic agent over time. Although the piezoelectric properties do not affect the cellular inflammatory profile, they appear to enable the initial adhesion of bacteria, however this is not significant over the entire testing period. Furthermore, the addition of non-poled BaTiO3 to zirconia may have a potential reduction effect on IL-6 mediated-inflammatory activity in fibroblasts.
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Affiliation(s)
- Beatriz Ferreira Fernandes
- Oral Biology and Biochemistry Research Group—Unidade de Investigação em Ciências Orais e Biomédicas (UICOB), Faculdade de Medicina Dentária, Universidade de Lisboa, 1600-277 Lisboa, Portugal
| | - Neusa Silva
- Oral Biology and Biochemistry Research Group—Unidade de Investigação em Ciências Orais e Biomédicas (UICOB), Faculdade de Medicina Dentária, Universidade de Lisboa, 1600-277 Lisboa, Portugal
| | - Joana Faria Marques
- Oral Biology and Biochemistry Research Group—Unidade de Investigação em Ciências Orais e Biomédicas (UICOB), Faculdade de Medicina Dentária, Universidade de Lisboa, 1600-277 Lisboa, Portugal
| | - Mariana Brito Da Cruz
- Oral Biology and Biochemistry Research Group—Unidade de Investigação em Ciências Orais e Biomédicas (UICOB), Faculdade de Medicina Dentária, Universidade de Lisboa, 1600-277 Lisboa, Portugal
| | - Laura Tiainen
- Department of Mechanical Engineering, Center for Microelectromechanical Systems (CMEMS), University of Minho, 4800-058 Guimarães, Portugal
| | - Michael Gasik
- Department of Chemical and Metallurgical Engineering, Aalto University, 02780 Espoo, Finland
| | - Óscar Carvalho
- Department of Mechanical Engineering, Center for Microelectromechanical Systems (CMEMS), University of Minho, 4800-058 Guimarães, Portugal
| | - Filipe Samuel Silva
- Department of Mechanical Engineering, Center for Microelectromechanical Systems (CMEMS), University of Minho, 4800-058 Guimarães, Portugal
| | - João Caramês
- Implant & Tissue Regeneration Group—Unidade de Investigação em Ciências Orais e Biomédicas (UICOB), LIBPhys-FTC UID/FIS/04559/2013, Faculdade de Medicina Dentária, Universidade de Lisboa, 1600-277 Lisboa, Portugal
| | - António Mata
- Oral Biology and Biochemistry Research Group—Unidade de Investigação em Ciências Orais e Biomédicas (UICOB), LIBPhys-FCT UID/FIS/04559/2013, Faculdade de Medicina Dentária, Universidade de Lisboa, 1600-277 Lisboa, Portugal
- CEMDBE—Cochrane Portugal, Faculdade de Medicina Dentária, Universidade de Lisboa, 1600-277 Lisboa, Portugal
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10
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Shi Y, Zhang N, Liu J, Wang J, Shen S, Zhang J, An X, Si Q. Preparation of Nanocomposites for Antibacterial Orthodontic Invisible Appliance Based on Piezoelectric Catalysis. SENSORS (BASEL, SWITZERLAND) 2023; 23:s23115336. [PMID: 37300063 DOI: 10.3390/s23115336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 05/28/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023]
Abstract
Compared to fixed orthodontic appliances with brackets, thermoplastic invisible orthodontic aligners offer several advantages, such as high aesthetic performance, good comfort, and convenient oral health maintenance, and are widely used in orthodontic fields. However, prolonged use of thermoplastic invisible aligners may lead to demineralization and even caries in most patients' teeth, as they enclose the tooth surface for an extended period. To address this issue, we have created PETG composites that contain piezoelectric barium titanate nanoparticles (BaTiO3NPs) to obtain antibacterial properties. First, we prepared piezoelectric composites by incorporating varying amounts of BaTiO3NPs into PETG matrix material. The composites were then characterized using techniques such as SEM, XRD, and Raman spectroscopy, which confirmed the successful synthesis of the composites. We cultivated biofilms of Streptococcus mutans (S. mutans) on the surface of the nanocomposites under both polarized and unpolarized conditions. We then activated piezoelectric charges by subjecting the nanocomposites to 10 Hz cyclic mechanical vibration. The interactions between the biofilms and materials were evaluated by measuring the biofilm biomass. The addition of piezoelectric nanoparticles had a noticeable antibacterial effect on both the unpolarized and polarized conditions. Under polarized conditions, nanocomposites demonstrated a greater antibacterial effect than under unpolarized conditions. Additionally, as the concentration of BaTiO3NPs increased, the antibacterial rate also increased, with the surface antibacterial rate reaching 67.39% (30 wt% BaTiO3NPs). These findings have the potential for application in wearable, invisible appliances to improve clinical services and reduce the need for cleaning methods.
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Affiliation(s)
- Yingying Shi
- School of Stomatology, Lanzhou University, Lanzhou 730030, China
| | - Ningning Zhang
- School of Stomatology, Lanzhou University, Lanzhou 730030, China
| | - Jiajie Liu
- School of Stomatology, Lanzhou University, Lanzhou 730030, China
| | - Junbin Wang
- School of Stomatology, Lanzhou University, Lanzhou 730030, China
| | - Shuhui Shen
- School of Stomatology, Lanzhou University, Lanzhou 730030, China
| | - Jingxiang Zhang
- School of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730030, China
| | - Xiaoli An
- School of Stomatology, Lanzhou University, Lanzhou 730030, China
| | - Qingzong Si
- School of Stomatology, Lanzhou University, Lanzhou 730030, China
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11
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Montoya C, Roldan L, Yu M, Valliani S, Ta C, Yang M, Orrego S. Smart dental materials for antimicrobial applications. Bioact Mater 2023; 24:1-19. [PMID: 36582351 PMCID: PMC9763696 DOI: 10.1016/j.bioactmat.2022.12.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/17/2022] [Accepted: 12/01/2022] [Indexed: 12/13/2022] Open
Abstract
Smart biomaterials can sense and react to physiological or external environmental stimuli (e.g., mechanical, chemical, electrical, or magnetic signals). The last decades have seen exponential growth in the use and development of smart dental biomaterials for antimicrobial applications in dentistry. These biomaterial systems offer improved efficacy and controllable bio-functionalities to prevent infections and extend the longevity of dental devices. This review article presents the current state-of-the-art of design, evaluation, advantages, and limitations of bioactive and stimuli-responsive and autonomous dental materials for antimicrobial applications. First, the importance and classification of smart biomaterials are discussed. Second, the categories of bioresponsive antibacterial dental materials are systematically itemized based on different stimuli, including pH, enzymes, light, magnetic field, and vibrations. For each category, their antimicrobial mechanism, applications, and examples are discussed. Finally, we examined the limitations and obstacles required to develop clinically relevant applications of these appealing technologies.
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Affiliation(s)
- Carolina Montoya
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, PA, USA
| | - Lina Roldan
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, PA, USA
- Bioengineering Research Group (GIB), Universidad EAFIT, Medellín, Colombia
| | - Michelle Yu
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, PA, USA
| | - Sara Valliani
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, PA, USA
| | - Christina Ta
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, PA, USA
| | - Maobin Yang
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, PA, USA
- Department of Endodontology, Kornberg School of Dentistry, Temple University, Philadelphia, PA, USA
- Bioengineering Department, College of Engineering, Temple University, Philadelphia, PA, USA
| | - Santiago Orrego
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, PA, USA
- Bioengineering Department, College of Engineering, Temple University, Philadelphia, PA, USA
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12
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Zhang S, Wang L, Zhang Y, Yu X, Zhang Y, Li H, Pei J, Zhao Y, An Q. Breathable Bactericide Piezocatalyst Integrating Anode-Cathode Heterojunction Capacitance on a Piezoelectric-Conductive Film. ACS APPLIED MATERIALS & INTERFACES 2023; 15:3867-3881. [PMID: 36626718 DOI: 10.1021/acsami.2c21024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Piezocatalysis has received great attention in recent years. However, despite the great promise therein, high-performance piezocatalysts are still rare and the principles in designing high-performance piezocatalysts remain lacking. We demonstrate here a novel piezocatalyst design by integrating the oxidizing and reducing reaction sites heterojunction on a piezoelectric and conductive matrix. The catalytic composite generates reactive oxidizing species with unprecedented high capabilities. The •O2- yield is over 400% that of previously reported catalysts and for the first time realized effective piezocatalytic bactericidal effects over 99%. A range of structural features, including proper energy band alignments, high capacitance, patterned high conductivity, voltage-regulated wettability, and effective piezoelectrical capability, are believed to synergize for their high piezocatalytic performance. This study has extended the piezocatalysts with new design principles, effective descriptors of merits, new applications, and effective performance capabilities.
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Affiliation(s)
- Shuting Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral, Materials School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Lingchao Wang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral, Materials School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Yi Zhang
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Xiang Yu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral, Materials School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Yihe Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral, Materials School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Hongpeng Li
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral, Materials School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Jingxuan Pei
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral, Materials School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Yantao Zhao
- Beijing Engineering Research Center of Orthopaedic Implants, Fourth Medical Center of CPLA General Hospital, Beijing 100048, China
- State Key Laboratory of Military Stomatology, Xi'an 710032, China
| | - Qi An
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral, Materials School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
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13
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Chen S, Zhu P, Mao L, Wu W, Lin H, Xu D, Lu X, Shi J. Piezocatalytic Medicine: An Emerging Frontier using Piezoelectric Materials for Biomedical Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2208256. [PMID: 36634150 DOI: 10.1002/adma.202208256] [Citation(s) in RCA: 36] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 01/03/2023] [Indexed: 06/17/2023]
Abstract
Emerging piezocatalysts have demonstrated their remarkable application potential in diverse medical fields. In addition to their ultrahigh catalytic activities, their inherent and unique charge-carrier-releasing properties can be used to initiate various redox catalytic reactions, displaying bright prospects for future medical applications. Triggered by mechanical energy, piezocatalytic materials can release electrons/holes, catalyze redox reactions of substrates, or intervene in biological processes to promote the production of effector molecules for medical purposes, such as decontamination, sterilization, and therapy. Such a medical application of piezocatalysis is termed as piezocatalytic medicine (PCM) herein. To pioneer novel medical technologies, especially therapeutic modalities, this review provides an overview of the state-of-the-art research progress in piezocatalytic medicine. First, the principle of piezocatalysis and the preparation methodologies of piezoelectric materials are introduced. Then, a comprehensive summary of the medical applications of piezocatalytic materials in tumor treatment, antisepsis, organic degradation, tissue repair and regeneration, and biosensing is provided. Finally, the main challenges and future perspectives in piezocatalytic medicine are discussed and proposed, expecting to fuel the development of this emerging scientific discipline.
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Affiliation(s)
- Si Chen
- Shanghai Tenth People's Hospital, Clinical Center For Brain And Spinal Cord Research, Shanghai Frontiers Science Center of Nanocatalytic Medicine, The Institute for Biomedical Engineering and Nano Science, School of Medicine, Tongji University, Shanghai, 200092, P. R. China
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics Chinese Academy of Sciences Research Unit of Nanocatalytic Medicine in Specific Therapy for Serious Disease, Chinese Academy of Medical Sciences (2021RU012), Shanghai, 200050, P. R. China
| | - Piao Zhu
- Shanghai Tenth People's Hospital, Clinical Center For Brain And Spinal Cord Research, Shanghai Frontiers Science Center of Nanocatalytic Medicine, The Institute for Biomedical Engineering and Nano Science, School of Medicine, Tongji University, Shanghai, 200092, P. R. China
| | - Lijie Mao
- Shanghai Tenth People's Hospital, Clinical Center For Brain And Spinal Cord Research, Shanghai Frontiers Science Center of Nanocatalytic Medicine, The Institute for Biomedical Engineering and Nano Science, School of Medicine, Tongji University, Shanghai, 200092, P. R. China
| | - Wencheng Wu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics Chinese Academy of Sciences Research Unit of Nanocatalytic Medicine in Specific Therapy for Serious Disease, Chinese Academy of Medical Sciences (2021RU012), Shanghai, 200050, P. R. China
| | - Han Lin
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics Chinese Academy of Sciences Research Unit of Nanocatalytic Medicine in Specific Therapy for Serious Disease, Chinese Academy of Medical Sciences (2021RU012), Shanghai, 200050, P. R. China
| | - Deliang Xu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics Chinese Academy of Sciences Research Unit of Nanocatalytic Medicine in Specific Therapy for Serious Disease, Chinese Academy of Medical Sciences (2021RU012), Shanghai, 200050, P. R. China
| | - Xiangyu Lu
- Shanghai Tenth People's Hospital, Clinical Center For Brain And Spinal Cord Research, Shanghai Frontiers Science Center of Nanocatalytic Medicine, The Institute for Biomedical Engineering and Nano Science, School of Medicine, Tongji University, Shanghai, 200092, P. R. China
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics Chinese Academy of Sciences Research Unit of Nanocatalytic Medicine in Specific Therapy for Serious Disease, Chinese Academy of Medical Sciences (2021RU012), Shanghai, 200050, P. R. China
| | - Jianlin Shi
- Shanghai Tenth People's Hospital, Clinical Center For Brain And Spinal Cord Research, Shanghai Frontiers Science Center of Nanocatalytic Medicine, The Institute for Biomedical Engineering and Nano Science, School of Medicine, Tongji University, Shanghai, 200092, P. R. China
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics Chinese Academy of Sciences Research Unit of Nanocatalytic Medicine in Specific Therapy for Serious Disease, Chinese Academy of Medical Sciences (2021RU012), Shanghai, 200050, P. R. China
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14
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Zhao Y, Zhang H, Hong L, Zou X, Song J, Han R, Chen J, Yu Y, Liu X, Zhao H, Zhang Z. A Multifunctional Dental Resin Composite with Sr-N-Doped TiO 2 and n-HA Fillers for Antibacterial and Mineralization Effects. Int J Mol Sci 2023; 24:ijms24021274. [PMID: 36674788 PMCID: PMC9861335 DOI: 10.3390/ijms24021274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/28/2022] [Accepted: 01/02/2023] [Indexed: 01/11/2023] Open
Abstract
Dental caries, particularly secondary caries, which is the main contributor to dental repair failure, has been the subject of extensive research due to its biofilm-mediated, sugar-driven, multifactorial, and dynamic characteristics. The clinical utility of restorations is improved by cleaning bacteria nearby and remineralizing marginal crevices. In this study, a novel multifunctional dental resin composite (DRC) composed of Sr-N-co-doped titanium dioxide (Sr-N-TiO2) nanoparticles and nano-hydroxyapatite (n-HA) reinforcing fillers with improved antibacterial and mineralization properties is proposed. The experimental results showed that the anatase-phase Sr-N-TiO2 nanoparticles were synthesized successfully. After this, the curing depth (CD) of the DRC was measured from 4.36 ± 0.18 mm to 5.10 ± 0.19 mm, which met the clinical treatment needs. The maximum antibacterial rate against Streptococcus mutans (S. mutans) was 98.96%, showing significant inhibition effects (p < 0.0001), which was experimentally verified to be derived from reactive oxygen species (ROS). Meanwhile, the resin exhibited excellent self-remineralization behavior in an SBF solution, and the molar ratio of Ca/P was close to that of HA. Moreover, the relative growth rate (RGR) of mouse fibroblast L929 indicated a high biocompatibility, with the cytotoxicity level being 0 or I. Therefore, our research provides a suitable approach for improving the antibacterial and mineralization properties of DRCs.
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Affiliation(s)
- Yuanhang Zhao
- Department of Endodontics, School of Dentistry, Jilin University, Changchun 130021, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Changchun 130021, China
| | - Hong Zhang
- Department of Endodontics, School of Dentistry, Jilin University, Changchun 130021, China
| | - Lihua Hong
- Department of Endodontics, School of Dentistry, Jilin University, Changchun 130021, China
| | - Xinying Zou
- Department of Endodontics, School of Dentistry, Jilin University, Changchun 130021, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Changchun 130021, China
| | - Jiazhuo Song
- Department of Endodontics, School of Dentistry, Jilin University, Changchun 130021, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Changchun 130021, China
| | - Rong Han
- Department of Endodontics, School of Dentistry, Jilin University, Changchun 130021, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Changchun 130021, China
| | - Jiawen Chen
- Department of Endodontics, School of Dentistry, Jilin University, Changchun 130021, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Changchun 130021, China
| | - Yiyan Yu
- Department of Endodontics, School of Dentistry, Jilin University, Changchun 130021, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Changchun 130021, China
| | - Xin Liu
- Department of Endodontics, School of Dentistry, Jilin University, Changchun 130021, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Changchun 130021, China
| | - Hong Zhao
- Department of Endodontics, School of Dentistry, Jilin University, Changchun 130021, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Changchun 130021, China
| | - Zhimin Zhang
- Department of Endodontics, School of Dentistry, Jilin University, Changchun 130021, China
- Correspondence:
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15
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Wang X, Li J, Zhang S, Zhou W, Zhang L, Huang X. pH-activated antibiofilm strategies for controlling dental caries. Front Cell Infect Microbiol 2023; 13:1130506. [PMID: 36949812 PMCID: PMC10025512 DOI: 10.3389/fcimb.2023.1130506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 02/20/2023] [Indexed: 03/08/2023] Open
Abstract
Dental biofilms are highly assembled microbial communities surrounded by an extracellular matrix, which protects the resident microbes. The microbes, including commensal bacteria and opportunistic pathogens, coexist with each other to maintain relative balance under healthy conditions. However, under hostile conditions such as sugar intake and poor oral care, biofilms can generate excessive acids. Prolonged low pH in biofilm increases proportions of acidogenic and aciduric microbes, which breaks the ecological equilibrium and finally causes dental caries. Given the complexity of oral microenvironment, controlling the acidic biofilms using antimicrobials that are activated at low pH could be a desirable approach to control dental caries. Therefore, recent researches have focused on designing novel kinds of pH-activated strategies, including pH-responsive antimicrobial agents and pH-sensitive drug delivery systems. These agents exert antibacterial properties only under low pH conditions, so they are able to disrupt acidic biofilms without breaking the neutral microenvironment and biodiversity in the mouth. The mechanisms of low pH activation are mainly based on protonation and deprotonation reactions, acids labile linkages, and H+-triggered reactive oxygen species production. This review summarized pH-activated antibiofilm strategies to control dental caries, concentrating on their effect, mechanisms of action, and biocompatibility, as well as the limitation of current research and the prospects for future study.
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Affiliation(s)
- Xiuqing Wang
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Lab of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
| | - Jingling Li
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Lab of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
| | - Shujun Zhang
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Lab of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
| | - Wen Zhou
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Lab of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
| | - Linglin Zhang
- State Key Laboratory of Oral Diseases, Department of Cariology and Endodontics, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xiaojing Huang
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Lab of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
- *Correspondence: Xiaojing Huang,
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16
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Zubrzycki J, Klepka T, Marchewka M, Zubrzycki R. Tests of Dental Properties of Composite Materials Containing Nanohybrid Filler. MATERIALS (BASEL, SWITZERLAND) 2022; 16:348. [PMID: 36614687 PMCID: PMC9821974 DOI: 10.3390/ma16010348] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
Complex composite materials are used in many areas of dentistry. Initially, chemically hardened materials were also used, and in this group nanohybrid composites are highly valued. They are often used today, mainly for the direct reconstruction of damaged hard tooth tissue materials for rebuilding damaged tissues using indirect adhesive techniques. The research was conducted to determine the mechanical properties of materials with nanofillers. The article focuses on methods of important test methods for dental prosthetics: resilience, abrasion, wear test, impact strength, hardness, SEM, and chemical analysis. As part of this work, five different series of hybrid composites with nano-fillers were tested. The mechanical properties of composites, such as compressive strength, microhardness, flexural strength, and modulus of elasticity, depend mainly on the type, particle size, and amount of filler introduced. The obtained test results showed that the type and amount of nanofiller have a significant influence on the mechanical and tribological properties. The introduction of nanofillers allowed us to obtain higher mechanical properties compared to classic materials discussed by other researchers. The study observed a change in vibrations in the IR spectrum, which allowed a comparison of the organic structures of the studied preparations.
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Affiliation(s)
- Jarosław Zubrzycki
- Department of Computerization and Robotization of Production, Lublin University of Technology, 20-618 Lublin, Poland
| | - Tomasz Klepka
- Department of Technology and Polymer Processing, Lublin University of Technology, 20-618 Lublin, Poland
| | - Magdalena Marchewka
- Department of Computerization and Robotization of Production, Lublin University of Technology, 20-618 Lublin, Poland
| | - Robert Zubrzycki
- Department of Dentistry, Medical University of Lublin, 20-059 Lublin, Poland
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17
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Ghosh S, Qiao W, Yang Z, Orrego S, Neelakantan P. Engineering Dental Tissues Using Biomaterials with Piezoelectric Effect: Current Progress and Future Perspectives. J Funct Biomater 2022; 14:jfb14010008. [PMID: 36662055 PMCID: PMC9867283 DOI: 10.3390/jfb14010008] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/08/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
Dental caries and traumatic injuries to teeth may cause irreversible inflammation and eventual death of the dental pulp. Nevertheless, predictably, repair and regeneration of the dentin-pulp complex remain a formidable challenge. In recent years, smart multifunctional materials with antimicrobial, anti-inflammatory, and pro-regenerative properties have emerged as promising approaches to meet this critical clinical need. As a unique class of smart materials, piezoelectric materials have an unprecedented advantage over other stimuli-responsive materials due to their inherent capability to generate electric charges, which have been shown to facilitate both antimicrobial action and tissue regeneration. Nonetheless, studies on piezoelectric biomaterials in the repair and regeneration of the dentin-pulp complex remain limited. In this review, we summarize the biomedical applications of piezoelectric biomaterials in dental applications and elucidate the underlying molecular mechanisms contributing to the biological effect of piezoelectricity. Moreover, we highlight how this state-of-the-art can be further exploited in the future for dental tissue engineering.
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Affiliation(s)
- Sumanta Ghosh
- Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
| | - Wei Qiao
- Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
| | - Zhengbao Yang
- Department of Mechanical Engineering & Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, China
| | - Santiago Orrego
- Oral Health Sciences Department, Kornberg School of Dentistry, Temple University, Philadelphia, PA 19140, USA
- Bioengineering Department, College of Engineering, Temple University, Philadelphia, PA 19140, USA
| | - Prasanna Neelakantan
- Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
- Correspondence:
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18
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Xu R, Mu X, Hu Z, Jia C, Yang Z, Yang Z, Fan Y, Wang X, Wu Y, Lu X, Chen J, Xiang G, Li H. Enhancing bioactivity and stability of polymer-based material-tissue interface through coupling multiscale interfacial interactions with atomic-thin TiO 2 nanosheets. NANO RESEARCH 2022; 16:5247-5255. [PMID: 36532602 PMCID: PMC9734535 DOI: 10.1007/s12274-022-5153-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/30/2022] [Accepted: 10/03/2022] [Indexed: 05/25/2023]
Abstract
Stable and bioactive material-tissue interface (MTF) basically determines the clinical applications of biomaterials in wound healing, sustained drug release, and tissue engineering. Although many inorganic nanomaterials have been widely explored to enhance the stability and bioactivity of polymer-based biomaterials, most are still restricted by their stability and biocompatibility. Here we demonstrate the enhanced bioactivity and stability of polymer-matrix bio-composite through coupling multiscale material-tissue interfacial interactions with atomically thin TiO2 nanosheets. Resin modified with TiO2 nanosheets displays improved mechanical properties, hydrophilicity, and stability. Also, we confirm that this resin can effectively stimulate the adhesion, proliferation, and differentiation into osteogenic and odontogenic lineages of human dental pulp stem cells using in vitro cell-resin interface model. TiO2 nanosheets can also enhance the interaction between demineralized dentinal collagen and resin. Our results suggest an approach to effectively up-regulate the stability and bioactivity of MTFs by designing biocompatible materials at the sub-nanoscale. Electronic Supplementary Material Supplementary material (further details of fabrication and characterization of TiO2 NSs and TiO2-ARCs, the bioactivity evaluation of TiO2-ARCs on hDPSCs, and the measurement of interaction with demineralized dentin collagen) is available in the online version of this article at 10.1007/s12274-022-5153-1.
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Affiliation(s)
- Rongchen Xu
- Department of Stomatology, The First Medical Center, Chinese PLA General Hospital, Beijing, 100853 China
- Department of Stomatology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039 China
| | - Xiaodan Mu
- Department of Stomatology, The First Medical Center, Chinese PLA General Hospital, Beijing, 100853 China
| | - Zunhan Hu
- Department of Stomatology, Kunming Medical University, Kunming, 650500 China
| | - Chongzhi Jia
- Department of Stomatology, The First Medical Center, Chinese PLA General Hospital, Beijing, 100853 China
| | - Zhenyu Yang
- National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an, 710032 China
| | - Zhongliang Yang
- Department of Stomatology, The First Medical Center, Chinese PLA General Hospital, Beijing, 100853 China
| | - Yiping Fan
- Department of Stomatology, The First Medical Center, Chinese PLA General Hospital, Beijing, 100853 China
| | - Xiaoyu Wang
- Department of Stomatology, The First Medical Center, Chinese PLA General Hospital, Beijing, 100853 China
- Department of Stomatology, The Strategic Support Force Medical Center, Beijing, 100101 China
| | - Yuefeng Wu
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029 China
| | - Xiaotong Lu
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029 China
| | - Jihua Chen
- National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an, 710032 China
| | - Guolei Xiang
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029 China
| | - Hongbo Li
- Department of Stomatology, The First Medical Center, Chinese PLA General Hospital, Beijing, 100853 China
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19
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Qin L, Yao S, Meng W, Zhang J, Shi R, Zhou C, Wu J. Novel antibacterial dental resin containing silanized hydroxyapatite nanofibers with remineralization capability. Dent Mater 2022; 38:1989-2002. [DOI: 10.1016/j.dental.2022.11.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/10/2022] [Accepted: 11/11/2022] [Indexed: 11/23/2022]
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20
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Abstract
Bioactive materials for dental resin restorations are a rising field of investigation exploring treatment strategies for reducing the recurrence of carious lesions. The current effort has been directed toward developing dental materials that can inhibit biofilms and prevent tooth mineral loss. Bioactive resin materials have shown the potential to interfere with polymicrobial consortia in vivo and help maintain the lifespan of restorations.
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Affiliation(s)
- Mary Anne S Melo
- Program in Dental Biomedical Sciences, University of Maryland School of Dentistry, 650 West Baltimore Street, Baltimore, MD 21201, USA; Division of Operative Dentistry, Department of General Dentistry, University of Maryland Dental School, 650 West Baltimore Street, Baltimore, MD 21201, USA.
| | - Lamia Mokeem
- Program in Dental Biomedical Sciences, University of Maryland School of Dentistry, 650 West Baltimore Street, Baltimore, MD 21201, USA
| | - Jirun Sun
- The Forsyth Institute, Harvard School of Dental Medicine Affiliate, 245 First Street, Cambridge, MA 02142, USA
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21
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Dai D, Zhou D, Xie H, Wang J, Zhang C. The design, construction and application of graphene family composite nanocoating on dental metal surface. BIOMATERIALS ADVANCES 2022; 140:213087. [PMID: 36029723 DOI: 10.1016/j.bioadv.2022.213087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 08/14/2022] [Accepted: 08/18/2022] [Indexed: 06/15/2023]
Abstract
Enhancement of the biological and mechanical properties of dental metals is important for accommodation with therapeutic schemes in different stomatological disciplines. Nanocoatings based on graphene family nanomaterials (GFNs) improve the topological structure and physicochemical properties of metal surfaces, endowing them with new properties while maintaining inherent mechanical properties. Nano-composite coatings, composed of GFNs with one or more type of polymer, metal, oxide, and inorganic nonmetallic compound, offer more matching modification schemes to meet multifunctional oral treatment requirements (e.g., anti-bacterial and anti-corrosive activity, osteogenesis and angiogenesis). This review describes recent progress in the development of GFN composite nanocoatings for the modification of dental metals, focus on biological effects in clinical settings. Underlying molecular mechanisms, critical modification schemes, and technical innovation in preparation methods are also discussed. The key parameters of GFN composite nanocoating surface modification are summarized according to effects on cellular responses and antibacterial activity. This review provides a theoretical reference for the optimization of the biological effects and application of GFN composite nanocoatings for dental metals, and the promotion of the environmentally friendly large-scale production of high-quality multifunctional GFN-based nanocoatings in the field of oral science.
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Affiliation(s)
- Danni Dai
- Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - Dongshuai Zhou
- School of Materials Engineering, Jiangsu University of Technology, Changzhou 213001, China
| | - Hanshu Xie
- Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - Jianrong Wang
- Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - Chao Zhang
- Stomatological Hospital, Southern Medical University, Guangzhou 510280, China.
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Kamel NA. Bio-piezoelectricity: fundamentals and applications in tissue engineering and regenerative medicine. Biophys Rev 2022; 14:717-733. [PMID: 35783122 PMCID: PMC9243952 DOI: 10.1007/s12551-022-00969-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 05/28/2022] [Indexed: 02/07/2023] Open
Abstract
In recent years, smart materials have piqued the interest of scientists and physicians in the biomedical community owing to their ability to modify their properties in response to an external stimulation or changes in their surroundings. Biocompatible piezoelectric materials are an interesting group of smart materials due to their ability to produce electrical charges without an external power source. Electric signals produced by piezoelectric scaffolds can renew and regenerate tissues through special pathways like that found in the extracellular matrix. This review summarizes the piezoelectric phenomenon, piezoelectric effects generated within biological tissues, piezoelectric biomaterials, and their applications in tissue engineering and their use as biosensors.
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Affiliation(s)
- Nagwa Ahmed Kamel
- Microwave Physics and Dielectrics Department, Physics Research Institute, National Research Centre, Cairo, Egypt
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23
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Kong H, Bai X, Li H, Lin C, Yao X, Wang Y. Preparation of Ca doped wrinkled porous silica (Ca-WPS) for the improvement of apatite formation and mechanical properties of dental resins. J Mech Behav Biomed Mater 2022; 129:105159. [PMID: 35247860 DOI: 10.1016/j.jmbbm.2022.105159] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 02/25/2022] [Accepted: 02/27/2022] [Indexed: 10/19/2022]
Abstract
The purpose of this work was to fabricate and characterize Ca doped wrinkled porous silica (Ca-WPS), and evaluate their effect on the mineralization and mechanical properties of resin composites as functional fillers. Ca-WPS were prepared by sol-gel method and characterized by scanning electron microscopy, transmission electron microscopy and N2 adsorption-desorption measurements. The mineralization properties of the prepared Ca-WPS particles and the resin composites with different amount of Ca-WPS were evaluated by simulated body fluid (SBF) immersion method. The mechanical properties (flexural strength, flexural modulus, compressive strength and microhardness) of the dental resins containing unimodal Ca-WPS fillers and bimodal Ca-WPS fillers with nonporous silica were evaluated by a universal testing machine. Results showed that after immersing in SBF for 5 d, apatite formed on the surface of Ca-WPS and composites containing Ca-WPS fillers, indicating the excellent mineralization property of the prepared Ca-WPS. The mechanical properties of the dental resins increase with the increase of the proportion of unimodal Ca-WPS fillers. The dental resins with bimodal Ca-WPS fillers showed better mechanical properties than the group with only nonporous fillers at the same filler loading (60 wt%). Among all the samples, the dental composites filled with bimodal fillers (mass ratio of Ca-WPS: nonporous silica = 10:50, total filler loading 60 wt%) exhibited the best mechanical performance. The flexural strength, flexural modulus, compressive strength and microhardness of these samples were 26.96%, 42.75%, 16.04% and 54.1% higher than the composites with solid silica particles alone, respectively. Thus, the prepared Ca-WPS could effectively improve the apatite formation and mechanical properties of resin composites.
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Affiliation(s)
- Hongxing Kong
- Laboratory of Biomaterial Surfaces &; Interfaces, College of Material Science and Engineering, Taiyuan University of Technology, 79 West Yingze Road, Taiyuan, 030024, China
| | - Xingxing Bai
- Laboratory of Biomaterial Surfaces &; Interfaces, College of Material Science and Engineering, Taiyuan University of Technology, 79 West Yingze Road, Taiyuan, 030024, China
| | - Huaizhu Li
- Laboratory of Biomaterial Surfaces &; Interfaces, College of Material Science and Engineering, Taiyuan University of Technology, 79 West Yingze Road, Taiyuan, 030024, China
| | - Chucheng Lin
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, China
| | - Xiaohong Yao
- Laboratory of Biomaterial Surfaces &; Interfaces, College of Material Science and Engineering, Taiyuan University of Technology, 79 West Yingze Road, Taiyuan, 030024, China
| | - Yueyue Wang
- Laboratory of Biomaterial Surfaces &; Interfaces, College of Material Science and Engineering, Taiyuan University of Technology, 79 West Yingze Road, Taiyuan, 030024, China.
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24
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Montoya C, Kurylec J, Baraniya D, Tripathi A, Puri S, Orrego S. Antifungal Effect of Piezoelectric Charges on PMMA Dentures. ACS Biomater Sci Eng 2021; 7:4838-4846. [PMID: 34596379 DOI: 10.1021/acsbiomaterials.1c00926] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Candida-associated denture stomatitis is a recurring disease affecting up to 67% of denture wearers. Poly(methyl methacrylate) (PMMA) remains the main material employed in the fabrication of dentures due to its desirable physical, mechanical, and aesthetic properties. However, the improvement of its antimicrobial properties remains a challenge. To address this need, we developed PMMA composite filled with piezoelectric nanoparticles of barium titanate (BaTiO3) for therapeutic effects. Candida albicans biofilms were cultivated on the surface of the composites under continuous cyclic mechanical loading to activate the piezoelectric charges and to resemble mastication patterns. The interactions between biofilms and biomaterials were evaluated by measuring the biofilm biomass, metabolic activity, and the number of viable cells. To explore the antifungal mechanisms, changes in the expression of genes encoding adhesins and superoxide dismutase were assessed using reverse transcription-polymerase chain reaction. With the addition of piezoelectric nanoparticles, we observed a significant reduction in the biofilm formation and interference in the yeast-to-hyphae transition compared to the standard PMMA. Moreover, we observed that the cyclic deformation of biomaterial surfaces without antifungal agents produced increased biomass, metabolic activity, and a number of viable cells compared to the static/no-deformed surfaces. Cyclic deformation appears to be a novel mechanobiological signal that enables pathogenicity and virulence of C. albicans cells with increased expression of the yeast-to-hyphae transition genes. The outcome of this study opens new opportunities for the design of antifungal dentures for improved clinical service and reduced need for cleaning methods.
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Affiliation(s)
- Carolina Montoya
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University. Philadelphia, Pennsylvania 19140, United States
| | - Julia Kurylec
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University. Philadelphia, Pennsylvania 19140, United States
| | - Divyashri Baraniya
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University. Philadelphia, Pennsylvania 19140, United States
| | - Aparna Tripathi
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University. Philadelphia, Pennsylvania 19140, United States
| | - Sumant Puri
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University. Philadelphia, Pennsylvania 19140, United States
| | - Santiago Orrego
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University. Philadelphia, Pennsylvania 19140, United States.,Bioengineering Department, College of Engineering, Temple University. Philadelphia, Pennsylvania 19122, United States
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