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Bian C, Guo Y, Zhu M, Liu M, Xie X, Weir MD, Oates TW, Masri R, Xu HHK, Zhang K, Bai Y, Zhang N. New generation of orthodontic devices and materials with bioactive capacities to improve enamel demineralization. J Dent 2024; 142:104844. [PMID: 38253119 DOI: 10.1016/j.jdent.2024.104844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 01/14/2024] [Accepted: 01/16/2024] [Indexed: 01/24/2024] Open
Abstract
OBJECTIVE The article reviewed novel orthodontic devices and materials with bioactive capacities in recent years and elaborated on their properties, aiming to provide guidance and reference for future scientific research and clinical applications. DATA, SOURCES AND STUDY SELECTION Researches on remineralization, protein repellent, antimicrobial activity and multifunctional novel bioactive orthodontic devices and materials were included. The search of articles was carried out in Web of Science, PubMed, Medline and Scopus. CONCLUSIONS The new generation of orthodontic devices and materials with bioactive capacities has broad application prospects. However, most of the current studies are limited to in vitro studies and cannot explore the true effects of various bioactive devices and materials applied in oral environments. More research, especially in vivo researches, is needed to assist in clinical application. CLINICAL SIGNIFICANCE Enamel demineralization (ED) is a common complication in orthodontic treatments. Prolonged ED can lead to dental caries, impacting both the aesthetics and health of teeth. It is of great significance to develop antibacterial orthodontic devices and materials that can inhibit bacterial accumulation and prevent ED. However, materials with only preventive effect may fall short of addressing actual needs. Hence, the development of novel bioactive orthodontic materials with remineralizing abilities is imperative. The article reviewed the recent advancements in bioactive orthodontic devices and materials, offering guidance and serving as a reference for future scientific research and clinical applications.
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Affiliation(s)
- Ce Bian
- Department of Orthodontics, School of Stomatology, Capital Medical University, Beijing, 100050, China
| | - Yiman Guo
- Department of Orthodontics, School of Stomatology, Capital Medical University, Beijing, 100050, China
| | - Mengyao Zhu
- Department of Orthodontics, School of Stomatology, Capital Medical University, Beijing, 100050, China
| | - Miao Liu
- Department of Orthodontics, School of Stomatology, Capital Medical University, Beijing, 100050, China
| | - Xianju Xie
- Department of Orthodontics, School of Stomatology, Capital Medical University, Beijing, 100050, China
| | - Michael D Weir
- Department of Biomaterials and Regenerative Dental Medicine, University of Maryland School of Dentistry, Baltimore, MD 21201, USA
| | - Thomas W Oates
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, MD 21201, USA
| | - Radi Masri
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, MD 21201, USA
| | - Hockin H K Xu
- Department of Biomaterials and Regenerative Dental Medicine, University of Maryland School of Dentistry, Baltimore, MD 21201, USA
| | - Ke Zhang
- Department of Orthodontics, School of Stomatology, Capital Medical University, Beijing, 100050, China
| | - Yuxing Bai
- Department of Orthodontics, School of Stomatology, Capital Medical University, Beijing, 100050, China
| | - Ning Zhang
- Department of Orthodontics, School of Stomatology, Capital Medical University, Beijing, 100050, China.
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Hemanth M, Afshan SW, Alif Ahmed B, Darsan JP, Aravind M, Suchitra MP. Comparative evaluation of frictional characteristics between nano coated and non coated orthodontic brackets and arch wire configuration-An experimental in vitro study. J Orthod Sci 2023; 12:59. [PMID: 37881666 PMCID: PMC10597377 DOI: 10.4103/jos.jos_47_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 05/21/2023] [Accepted: 05/30/2023] [Indexed: 10/27/2023] Open
Abstract
OBJECTIVE To compare and assess the coefficient of frictional resistance between nano-coated orthodontic brackets and orthodontic archwires with conventional orthodontic brackets and archwires. METHODOLOGY In this experimental study, 128 samples were divided into 4 groups consisting of 32 orthodontic wires and brackets in each group. The samples were randomly allocated into GROUP A- ZNO nanoparticle coated archwires and brackets, GROUP B ZNO nanoparticle coated bracket and conventional archwire, GROUP C-ZNO nanoparticle coated archwire and conventional bracket, and GROUP D- conventional archwire and bracket after positioning them on special jigs frictional resistance was studied and evaluated. Bon - Ferroni test was used for inter group comparison and one way ANOVA was used for intr-group comparison. RESULTS The lowest mean frictional resistance is seen with Group A (nanocoated archwire with nanocoated bracket) N = 0.3401 ± 0.420; and highest with Group D (conventional brackets with conventional archwires) N = 0.8413 ± 0.60. a significant difference in mean frictional resistance was observed between the groups (P ≤ 0.01). The frictional resistance for the groups was in the following order from lowest to highest: group A < B < C < D. CONCLUSION The study showed decreased friction in ZNO nanoparticle coated archwires and brackets than conventional archwires and brackets.
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Affiliation(s)
- M Hemanth
- Department of Orthodontics, Dayanada Sagar College of Dental Sciences, Bangalore, Karnataka, India
| | - S W Afshan
- Department of Orthodontics, Dayanada Sagar College of Dental Sciences, Bangalore, Karnataka, India
| | - B Alif Ahmed
- Department of Orthodontics, Dayanada Sagar College of Dental Sciences, Bangalore, Karnataka, India
| | - JP Darsan
- Department of Orthodontics, Dayanada Sagar College of Dental Sciences, Bangalore, Karnataka, India
| | - M Aravind
- Department of Orthodontics, Dayanada Sagar College of Dental Sciences, Bangalore, Karnataka, India
| | - MP Suchitra
- Department of Orthodontics, Dayanada Sagar College of Dental Sciences, Bangalore, Karnataka, India
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Zhang R, Han B, Liu X. Functional Surface Coatings on Orthodontic Appliances: Reviews of Friction Reduction, Antibacterial Properties, and Corrosion Resistance. Int J Mol Sci 2023; 24:ijms24086919. [PMID: 37108082 PMCID: PMC10138808 DOI: 10.3390/ijms24086919] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 03/19/2023] [Accepted: 03/31/2023] [Indexed: 04/29/2023] Open
Abstract
Surface coating technology is an important way to improve the properties of orthodontic appliances, allowing for reduced friction, antibacterial properties, and enhanced corrosion resistance. It improves treatment efficiency, reduces side effects, and increases the safety and durability of orthodontic appliances. Existing functional coatings are prepared with suitable additional layers on the surface of the substrate to achieve the abovementioned modifications, and commonly used materials mainly include metal and metallic compound materials, carbon-based materials, polymers, and bioactive materials. In addition to single-use materials, metal-metal or metal-nonmetal materials can be combined. Methods of coating preparation include, but are not limited to, physical vapor deposition (PVD), chemical deposition, sol-gel dip coating, etc., with a variety of different conditions for preparing the coatings. In the reviewed studies, a wide variety of surface coatings were found to be effective. However, the present coating materials have not yet achieved a perfect combination of these three functions, and their safety and durability need further verification. This paper reviews and summarizes the effectiveness, advantages and disadvantages, and clinical perspectives of different coating materials for orthodontic appliances in terms of friction reduction, antibacterial properties, and enhanced corrosion resistance, and discusses more possibilities for follow-up studies as well as for clinical applications in detail.
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Affiliation(s)
- Ruichu Zhang
- Department of Orthodontics, School and Hospital of Stomatology, Peking University, Beijing 100081, China
- National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory for Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing 100081, China
| | - Bing Han
- Department of Orthodontics, School and Hospital of Stomatology, Peking University, Beijing 100081, China
- National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory for Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing 100081, China
| | - Xiaomo Liu
- Department of Orthodontics, School and Hospital of Stomatology, Peking University, Beijing 100081, China
- National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory for Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing 100081, China
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Anita P, Sathyanarayana HP, Kumar K, Ramanathan K, Kailasam V. Antimicrobial efficacy of zinc oxide nanoparticle-coated aligners on Streptococcus mutans and Candidaalbicans. Am J Orthod Dentofacial Orthop 2023; 163:338-346. [PMID: 36411228 DOI: 10.1016/j.ajodo.2021.11.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 11/01/2021] [Accepted: 11/01/2021] [Indexed: 11/21/2022]
Abstract
INTRODUCTION This study aimed to assess the antimicrobial effect of zinc oxide (ZnO) nanocoating on aligners. METHODS Twenty-six samples of aligners were sputter-coated with ZnO nanoparticles and compared with 26 uncoated samples. The antimicrobial effect was assessed on Streptococcus mutans and Candida albicans. The thickness of the ZnO coating was standardized at 100 nm. The antimicrobial effect was evaluated for 7 days at the following time points: 6 hours, 12 hours, first day, second day, fourth day, and seventh day. Colony culture tests were performed for microbial evaluation. RESULTS ZnO-coated aligners showed significant antimicrobial efficacy against S mutans at all time points tested (P <0.001). The antimicrobial effect was observed up to 2 days after a decline. The activity against C albicans was minimal at all time points, and no statistical significance was observed (P >0.05). CONCLUSIONS ZnO-nanocoated aligners were effective against S mutans, with the maximum antibacterial effect observed until 2 days and lasting for 7 days. The effect against C albicans was minimal. ZnO-coated aligners appears to be a promising technique to facilitate antimicrobial efficacy against S mutans.
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Affiliation(s)
- Prathima Anita
- Department of Orthodontics and Dentofacial Orthopedics, Sri Ramachandra Institute of Higher Education and Research, Chennai, India
| | | | - Kennedy Kumar
- Department of Microbiology, Sri Ramachandra Institute of Higher Education and Research, Chennai, India
| | - Krishnapriya Ramanathan
- Department of Microbiology, Sri Ramachandra Institute of Higher Education and Research, Chennai, India
| | - Vignesh Kailasam
- Department of Orthodontics and Dentofacial Orthopedics, Sri Ramachandra Institute of Higher Education and Research, Chennai, India.
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Choi JW, Yang SY. Effect of Zinc Oxide Incorporation on the Antibacterial, Physicochemical, and Mechanical Properties of Pit and Fissure Sealants. Polymers (Basel) 2023; 15. [PMID: 36771830 DOI: 10.3390/polym15030529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/12/2023] [Accepted: 01/16/2023] [Indexed: 01/22/2023] Open
Abstract
This study aimed to evaluate the antibacterial, physicochemical, and mechanical properties of pit and fissure sealants containing different weight percentages of zinc oxide nanoparticles (ZnO NPs). The following amounts of ZnO NPs were added to a commercially available pit and fissure sealant (BeautiSealant, Shofu, Japan) to prepare the experimental materials: 0 wt.% (commercial control (CC)), 0.5 wt.% (ZnO 0.5), 1 wt.% (ZnO 1.0), 2 wt.% (ZnO 2.0), and 4 wt.% (ZnO 4.0). The antibacterial effect against S. mutans was confirmed by counting the colony-forming units (CFUs) and observing live/dead bacteria. In addition, ion release, depth of cure, water sorption and solubility, and flexural strength tests were conducted. When compared with the CC, the experimental groups containing ZnO NPs showed zinc ion emission and significantly different CFUs (p < 0.05) with fewer live bacteria. ZnO NP addition reduced the depth of cure and water solubility and increased water sorption in comparison with the CC (p < 0.05). However, all groups showed similar flexural strength (p > 0.05). The pit and fissure sealants containing ZnO NPs exhibited antibacterial activity against S. mutans with no negative effects on physicochemical and mechanical properties, and thus, these sealants can be ideal secondary caries prevention material.
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Tanbakuchi B, Kharrazi S, Nikfarjam M, Akhoundi MSA, Shahroudi AS. Comparative assessment of the orthodontic wire's friction coated with zinc oxide nanoparticles by two methods of chemical precipitation and hydrothermal process. Folia Med (Plovdiv) 2022; 64:945-952. [PMID: 36876560 DOI: 10.3897/folmed.64.e67842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 12/06/2021] [Indexed: 01/01/2023] Open
Abstract
INTRODUCTION In orthodontic treatment with sliding technique, reduction of frictional forces could result in a more effective treatment. Recently, wire coating with nanoparticles were proposed to reduce frictional forces.
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Berthou M, Clarot I, Gouyon J, Steyer D, Monat MA, Boudier A, Pallotta A. Thiol sensing: From current methods to nanoscale contribution. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
Rapid transmission of infectious microorganisms such as viruses and bacteria through person-to-person contact has contributed significantly to global health issues. The high survivability of these microorganisms on the material surface enumerates their transmissibility to the susceptible patient. The antimicrobial coating has emerged as one of the most interesting technologies to prevent growth and subsequently kill disease-causing microorganisms. It offers an effective solution a non-invasive, low-cost, easy-in-use, side-effect-free, and environmentally friendly method to prevent nosocomial infection. Among antimicrobial coating, zinc oxide (ZnO) stands as one of the excellent materials owing to zero toxicity, high biocompatibility to human organs, good stability, high abundancy, affordability, and high photocatalytic performance to kill various infectious pathogens. Therefore, this review provides the latest research progress on advanced applications of ZnO nanostructure-based antibacterial coatings for medical devices, biomedical applications, and health care facilities. Finally, future challenges and clinical practices of ZnO-based antibacterial coating are addressed.
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Affiliation(s)
- Vinda Puspasari
- Research Center for Metallurgy, National Research and Innovation Agency, PUSPIPTEK Gd. 470, South Tangerang, Banten, 15315, Indonesia
| | - Aga Ridhova
- Research Center for Metallurgy, National Research and Innovation Agency, PUSPIPTEK Gd. 470, South Tangerang, Banten, 15315, Indonesia
| | - Angga Hermawan
- Research Center for Advanced Materials, National Research and Innovation Agency, South Tangerang, Banten, 15315, Indonesia
| | - Muhamad Ikhlasul Amal
- Research Center for Metallurgy, National Research and Innovation Agency, PUSPIPTEK Gd. 470, South Tangerang, Banten, 15315, Indonesia
| | - Mohammad Mansoob Khan
- Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam.
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Esmaeilzadeh M, Divband B, Ranjkesh B, Pournaghi Azar F, Yeganeh Sefidan F, Kachoei M, Karimzadeh B, Berger SB. Antimicrobial and Mechanical Properties of Orthodontic Acrylic Resin Containing Zinc Oxide and Titanium Dioxide Nanoparticles Supported on 4A Zeolite. Int J Dent 2022; 2022:1-11. [PMID: 35874121 PMCID: PMC9303498 DOI: 10.1155/2022/8155971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 06/18/2022] [Indexed: 11/23/2022] Open
Abstract
Polymethyl methacrylate (PMMA) is widely used to manufacture removable orthodontic appliances. However, since the porous structure, cold-curing acrylic resins are susceptible to bacterial adhesion and colonization. The aim of this study was to investigate the antibacterial and mechanical properties of a cold-curing PMMA resin containing ZnO and TiO2 nanoparticles supported on the 4A zeolite. ZnO and TiO2 nanoparticles supported on the 4A zeolite were synthesized. Nanoparticles were added in three compositions as ZnO/4A, TiO2/4A, and ZnO/TiO2/4A at 2wt% and 4wt% concentrations to cold-curing acrylic resin powder (SR Triplex® Cold Ivoclar Vivadent AG, FL-9494 Schaan/Liechtenstein). X-ray diffraction (XRD), Field Emission Scanning Electron Microscopy (FE-SEM), energy dispersive X-ray (EDX), transmission electron microscopy (TEM), and dynamic light scattering (DLS) were performed to investigate the nanocomposite characteristics. A direct test method was used to assess the antibacterial properties against Streptococcus mutans, Klebsiella pneumoniae, and Escherichia coli. The surface roughness of acrylic samples was measured with a profilometer. Flexural strength was evaluated by a three-point bending test, and one-way ANOVA and Tukey's post hoc tests were used for statistical evaluation of the data. A p value of less than 0.05 was considered statistically significant. XRD confirmed the accurate crystalline structure of synthesized nanoparticles; FE-SEM images showed nanoparticle dispersion within polymerized acryl. The addition of 2 and 4 wt% of ZnO/4A, TiO2/4A, and ZnO/TiO2/4A caused colony reduction in all types of tested microorganisms more than 99% and 100%, respectively. The mean flexural strengths of acrylic specimens containing 2wt% and 4wt% of synthesized nanoparticles were significantly lower than those of the resin without nanoparticles. Fabricated samples showed favorable antibacterial properties but decreased flexural strength.
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Palanivel J, Srinivasan D, Chakravathy NCS. Comparison of the frictional resistance and optical properties of aluminum oxide and zinc oxide coated nickel titanium archwires – An in vitro study. APOS 2022. [DOI: 10.25259/apos_24_2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Objectives:
The friction that appears during sliding mechanics poses a clinical challenge to the orthodontist. The primary focus of an ideal tooth movement is to reduce the friction created at the archwire-bracket interface. Various variables (both biological and mechanical) affect the role of friction during orthodontic tooth movement. One among the variables which play a critical role is the archwire used in fixed mechanotherapy. Nickel-titanium (NiTi) archwires are widely used in clinical conditions due to their properties such as low force delivery and wider elastic working range. Innovations in the field of material science have led to the evolution of nickel titanium archwires with coating and surface modification to enhance the esthetics and decrease friction. Esthetics is of major concern in patients undergoing orthodontic treatment. As the esthetic demand keeps rising, the need for developing an esthetically acceptable material is required and it should not compromise on the clinical performance. The study aimed to evaluate and compare the frictional resistance and optical properties of ALUMINIUM oxide and zinc oxide-coated Ni-Ti archwires.
Material and Methods:
The archwires were divided into three groups (n = 10), respectively: Group 1 – control group of uncoated NiTi archwires, GROUP 2 – zinc oxide coated NiTi archwires, and Group 3 – ALUMINIUM oxide coated NiTi archwires. The frictional resistance test was done using a universal testing machine, Instron, and optical properties were assessed using a colorimeter. The analysis of variance was used to determine whether a significant difference existed between the groups and a further post hoc Tukey test was used to determine the significant difference in the mean (P < 0.05).
Results:
The two coated archwire groups – zinc oxide and ALUMINIUM oxide archwires showed a significant decrease in frictional resistance. Of the three groups, zinc oxide showed the least frictional resistance compared to the ALUMINIUM oxide-coated group and the uncoated group. Optical properties were calculated using the formula ΔE*ab for the three groups. Of which zinc oxide coated archwires were closest to VA1 indicating that it matches the shade of the natural tooth while the other two groups did not match the tooth color implying that it is not much esthetic as that of zinc oxide coated archwires.
Conclusion:
The zinc oxide-coated archwire resembles tooth color as well as has less frictional resistance compared to the other archwires.
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Affiliation(s)
- Jeyaram Palanivel
- Department of Orthodontics, SRM Dental College, Chennai, Tamil Nadu, India,
| | - Dilip Srinivasan
- Department of Orthodontics, SRM Dental College, Chennai, Tamil Nadu, India,
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Abstract
Abstract
During the orthodontic process, increased microbial colonization and dental plaque formation on the orthodontic appliances and auxiliaries are major complications, causing oral infectious diseases, such as dental caries and periodontal diseases. To reduce plaque accumulation, antimicrobial materials are increasingly being investigated and applied to orthodontic appliances and auxiliaries by various methods. Through the development of nanotechnology, nanoparticles (NPs) have been reported to exhibit excellent antibacterial properties and have been applied in orthodontic materials to decrease dental plaque accumulation. In this review, we present the current development, antibacterial mechanisms, biocompatibility, and application of antibacterial NPs in orthodontic materials.
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Affiliation(s)
- Zhang Yun
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University , Chengdu , Sichuan 610041 , China
- Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University , Chengdu , Sichuan 610041 , China
| | - Du Qin
- Department of Stomatology, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China , Chengdu , 610072 , China
| | - Fei Wei
- Department of Stomatology, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China , Chengdu , 610072 , China
| | - Li Xiaobing
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University , Chengdu , Sichuan 610041 , China
- Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University , Chengdu , Sichuan 610041 , China
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Vartolomei AC, Serbanoiu DC, Ghiga DV, Moldovan M, Cuc S, Pollmann MCF, Pacurar M. Comparative Evaluation of Two Bracket Systems' Kinetic Friction: Conventional and Self-Ligating. Materials (Basel) 2022; 15:ma15124304. [PMID: 35744359 PMCID: PMC9229450 DOI: 10.3390/ma15124304] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/11/2022] [Accepted: 06/14/2022] [Indexed: 12/11/2022]
Abstract
Friction is an intensely studied feature in orthodontics, as the sliding mechanics approach remains one of the most utilized techniques in current practice, and the question of whether self-ligating brackets produce less friction than conventional brackets still stands. The objective of this study was to compare a self-ligating system with different closing mechanisms and a conventional system with different ligating mechanisms regarding their frictional properties. Laboratory measurements were performed using an advanced materials testing machine generating tensile strength and load at maximum Load values, which were statistically analyzed and compared. These two parameters have been associated with the frictional resistance generated at the archwire–bracket slot interface. Statistically significant results were obtained when comparing the active self-ligating brackets with the passive self-ligating (tensile strength mean 1.953, SD 0.4231; load at maximum moad mean 6.000, SD 1.3000) and conventional brackets (tensile strength mean 1.953, SD 0.4231; load at maximum load mean 6.000, SD 1.3000), as well as when comparing the passive self-ligating brackets with the conventional brackets (tensile strength mean 1.708, SD 0.8628; load at maximum load mean 5.254, SD 2.645). The active self-ligating brackets tended to produce more friction when compared to the passive self-ligating brackets but were similar to conventional brackets with stainless steel ligatures.
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Affiliation(s)
- Aurel-Claudiu Vartolomei
- Faculty of Dental Medicine, GEP University of Medicine Pharmacy, Science and Technology of Targu Mures, 540139 Târgu Mureș, Romania; (A.-C.V.); (D.-C.S.); (D.-V.G.); (M.P.)
| | - Dan-Cosmin Serbanoiu
- Faculty of Dental Medicine, GEP University of Medicine Pharmacy, Science and Technology of Targu Mures, 540139 Târgu Mureș, Romania; (A.-C.V.); (D.-C.S.); (D.-V.G.); (M.P.)
| | - Dana-Valentina Ghiga
- Faculty of Dental Medicine, GEP University of Medicine Pharmacy, Science and Technology of Targu Mures, 540139 Târgu Mureș, Romania; (A.-C.V.); (D.-C.S.); (D.-V.G.); (M.P.)
| | - Marioara Moldovan
- Raluca Ripan Chemistry Research Institute, Babes Bolyai University, 400294 Cluj-Napoca, Romania; (M.M.); (S.C.)
| | - Stanca Cuc
- Raluca Ripan Chemistry Research Institute, Babes Bolyai University, 400294 Cluj-Napoca, Romania; (M.M.); (S.C.)
| | | | - Mariana Pacurar
- Faculty of Dental Medicine, GEP University of Medicine Pharmacy, Science and Technology of Targu Mures, 540139 Târgu Mureș, Romania; (A.-C.V.); (D.-C.S.); (D.-V.G.); (M.P.)
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Zeidan NK, Enany NM, Mohamed GG, Marzouk ES. The antibacterial effect of silver, zinc-oxide and combination of silver/ zinc oxide nanoparticles coating of orthodontic brackets (an in vitro study). BMC Oral Health 2022; 22:230. [PMID: 35681128 DOI: 10.1186/s12903-022-02263-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 05/25/2022] [Indexed: 12/02/2022] Open
Abstract
Background Preventive measures are essential during the length of orthodontic treatment to reduce the risk of decalcification and white spot lesions formation. With the evolution of procedures that enable coating of the orthodontic brackets using nanoparticles known for their good antibacterial activity, coating the brackets with nanoparticles of silver, zinc oxide and combination of silver and zinc oxide to evaluate their antibacterial effect in comparison to a control group without coating was carried out in this study. Methods Four groups of 12 brackets each were included in the study. The coating procedure was carried out using physical vapor deposition. The antibacterial activity was tested on Streptococcus mutans and Lactobacillus Acidophilus using colony forming count. The antibacterial activity was evaluated immediately after coating and later after 3 months. Results Brackets coated with combination of silver and zinc oxide nanoparticles had the highest ability on reduction of both Streptococcus mutans and Lactobacillus Acidophilus count followed by silver nanoparticles and then zinc oxide nanoparticles. No significant difference was found between the first and second antibacterial tests. Conclusion The silver/zinc oxide nanoparticles coated brackets had the highest antibacterial effect in comparison to silver nanoparticles and zinc oxide nanoparticles individually coated brackets on Streptococcus mutans and Lactobacillus acidophilus, and all types of coatings showed enhanced antibacterial effect in comparison to the uncoated bracket. Coating of orthodontic brackets could be further assessed in clinical application to prevent decalcification. Supplementary Information The online version contains supplementary material available at 10.1186/s12903-022-02263-6.
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Pushpalatha C, Suresh J, Gayathri VS, Sowmya SV, Augustine D, Alamoudi A, Zidane B, Mohammad Albar NH, Patil S. Zinc Oxide Nanoparticles: A Review on Its Applications in Dentistry. Front Bioeng Biotechnol 2022; 10:917990. [PMID: 35662838 PMCID: PMC9160914 DOI: 10.3389/fbioe.2022.917990] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 04/28/2022] [Indexed: 11/13/2022] Open
Abstract
Nanotechnology in modern material science is a research hot spot due to its ability to provide novel applications in the field of dentistry. Zinc Oxide Nanoparticles (ZnO NPs) are metal oxide nanoparticles that open new opportunities for biomedical applications that range from diagnosis to treatment. The domains of these nanoparticles are wide and diverse and include the effects brought about due to the anti-microbial, regenerative, and mechanical properties. The applications include enhancing the anti-bacterial properties of existing restorative materials, as an anti-sensitivity agent in toothpastes, as an anti-microbial and anti-fungal agent against pathogenic oral microflora, as a dental implant coating, to improve the anti-fungal effect of denture bases in rehabilitative dentistry, remineralizing cervical dentinal lesions, increasing the stability of local drug delivery agents and other applications.
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Affiliation(s)
- C Pushpalatha
- Department of Pedodontics and Preventive Dentistry, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bangalore, India
| | - Jithya Suresh
- Department of Pedodontics and Preventive Dentistry, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bangalore, India
| | - VS Gayathri
- Department of Pedodontics and Preventive Dentistry, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bangalore, India
| | - SV Sowmya
- Department of Oral Pathology & Microbiology, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bangalore, India
| | - Dominic Augustine
- Department of Oral Pathology & Microbiology, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bangalore, India
| | - Ahmed Alamoudi
- Oral Biology Department, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Bassam Zidane
- Restorative Dentistry Department, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | | | - Shankargouda Patil
- Department of Maxillofacial Surgery and Diagnostic Sciences, Division of Oral Pathology, College of Dentistry, Shwajra Campus, Jazan University, Jazan, Saudi Arabia
- *Correspondence: Shankargouda Patil,
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Feyli S, Golshah A. Effect of zirconium oxide nano-coating on frictional resistance of orthodontic wires. J Orthod Sci 2022; 11:35. [PMID: 36188209 PMCID: PMC9515563 DOI: 10.4103/jos.jos_154_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 04/21/2022] [Accepted: 04/27/2022] [Indexed: 11/04/2022] Open
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Kachoei M, Divband B, Rahbar M, Esmaeilzadeh M, Ghanizadeh M, Alam M. A Novel Developed Bioactive Composite Resin Containing Silver/Zinc Oxide (Ag/ZnO) Nanoparticles as an Antimicrobial Material against Streptococcus mutans, Lactobacillus, and Candida albicans. Evid Based Complement Alternat Med 2021; 2021:4743411. [PMID: 34697547 DOI: 10.1155/2021/4743411] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 09/22/2021] [Indexed: 11/17/2022]
Abstract
Aim The objectives of this study were to develop a new bioactive composite resin containing silver/zinc oxide (Ag/ZnO) nanoparticles and investigate the effects on mechanical, cytotoxic, biocompatibility, and antimicrobial properties. Materials and Methods Disc-shaped specimens were prepared from composite with and without nanoparticles in separate culture media containing Streptococcus mutans, Lactobacillus, and Candida albicans. Bracket bonding evaluation was performed on composite without nanoparticles (O), composite containing ZnO (Z) nanoparticles, composite containing ZnO nanoparticles and silver ions (A&Z), and composite containing Ag/ZnO nanoparticles (AZ) synthesized using optical precipitation. Results Composite resin with nanoparticles (AZ, A&Z, and Z) showed significant antimicrobial properties (P < 0.05). The mean shear bond strength of A&Z composite resin (13.61 ± 0.73 MPa) was significantly less than that of conventional composite resin (19.03 ± 4.12 MPa) (P < 0.05). In addition, the mean shear bond strength of AZ composite resin (20.49 ± 1.03 MPa) was significantly higher than that of Z (16.35 ± 1.03 MPa) and A&Z composite resins. Conclusions Incorporation of ZnO nanoparticles and their compounds into orthodontic composite resins induced antibacterial properties against oral pathogens, and of all these nanoparticles, the AZ group exhibited the best antimicrobial activity and highest shear bond strength.
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Gholami M, Esmaeilzadeh M, Kachoei Z, Kachoei M, Divband B. Influence of Physical Dimension and Morphological-Dependent Antibacterial Characteristics of ZnO Nanoparticles Coated on Orthodontic NiTi Wires. Biomed Res Int 2021; 2021:6397698. [PMID: 34692836 DOI: 10.1155/2021/6397698] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 09/11/2021] [Accepted: 09/16/2021] [Indexed: 11/17/2022]
Abstract
White spot lesions (WSLs) are one of the adverse effects of fixed orthodontic treatments. They are the primary sign of caries, which means inhibiting this process by antibacterial agents will reverse the procedure. The current study tested the surface modification of nickel-titanium (NiTi) wires with ZnO nanoparticles (NPs), as antimicrobial agents. As the morphology of NPs is one of the most critical factors for their properties, the antibacterial properties of different morphologies of ZnO nanostructures coated on the NiTi wire were investigated. For the preparation of ZnO nanostructures, five coating methods, including chemical vapor deposition (CVD), chemical precipitation method, polymer composite coating, sol-gel synthesis, and electrospinning process, were used. The antibacterial activity of NPs was assessed against Streptococcus mutans by the colony counting method. The obtained results showed that all the samples had antibacterial effects. The antibacterial properties of ZnO NPs were significantly improved when the specific surface area of particles increased, by the ZnO nanocrystals prepared via the CVD coating method.
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Math M, Shah AG, Gangurde P, Karandikar AG, Gheware A, Jadhav BS. In-vitro Comparative Assessment of Antibacterial and Anti-adherent Effect of Two Types of Surface Modificants on Stainless Steel Orthodontic Brackets Against Streptococcus mutans. J Indian Orthod Soc 2021. [DOI: 10.1177/03015742211037298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Objective: Comparative evaluation of antibacterial and anti-adherent properties of surface-modified stainless steel (SS) orthodontic brackets against Streptococcus mutans ( S. mutans). Materials and Methods: The study was conducted on 120 SS orthodontic McLaughlin, Bennett, Trevisi (MBT) 0.022″ slot by Leone, Italy. Orthodontic brackets that constituted the sample size were divided into 6 groups, consisting of 20 samples each in two control (non-surface coated) and four experimental groups. The experimental group’s surface coatings were photocatalytic zinc oxide (ZnO) and photocatalytic titanium oxide (TiO2), which were carried out by radiofrequency (RF) magnetron sputtering method for surface modification. Brackets were subjected to microbiological tests against S. mutans. For anti-adherence, weight change, pre- and postexposure, was evaluated to gauge the adherence of bacteria and colony-forming units/milliliter (CFU/mL) count measuring the survival rate of bacterial cells for antibacterial activity. Results: The TiO2-coated group showed statistically significant anti-adherence ( P-value < .05) against S. mutans than control and ZnO groups. The CFU count of TiO2 group was lower than control as well as ZnO group. Conclusion: TiO2 is superior to ZnO and should be continued to be considered for surface modification of orthodontic brackets against White Spot Lesions (WSLs) and gingivitis.
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Affiliation(s)
- Mrunmaye Math
- Department of Orthodontics and Dentofacial Orthopedics, Bharati Vidyapeeth Dental College and Hospital, Navi Mumbai, Mumbai, Maharashtra, India
| | - Alok G. Shah
- Department of Orthodontics and Dentofacial Orthopedics, Bharati Vidyapeeth Dental College and Hospital, Navi Mumbai, Mumbai, Maharashtra, India
| | - Parag Gangurde
- Department of Orthodontics and Dentofacial Orthopedics, Bharati Vidyapeeth Dental College and Hospital, Navi Mumbai, Mumbai, Maharashtra, India
| | - Anita G. Karandikar
- Department of Orthodontics and Dentofacial Orthopedics, Saraswati-Dhanwantari Dental College and Hospital, Post Graduate Research Institute, Parbhani, Maharashtra, India
| | - Anjali Gheware
- Department of Orthodontics and Dentofacial Orthopedics, Bharati Vidyapeeth Dental College and Hospital, Navi Mumbai, Mumbai, Maharashtra, India
| | - Bhagyashree S. Jadhav
- Department of Orthodontics and Dentofacial Orthopedics, Bharati Vidyapeeth Dental College and Hospital, Navi Mumbai, Mumbai, Maharashtra, India
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Moradpoor H, Safaei M, Mozaffari HR, Sharifi R, Imani MM, Golshah A, Bashardoust N. An overview of recent progress in dental applications of zinc oxide nanoparticles. RSC Adv 2021; 11:21189-21206. [PMID: 35479373 PMCID: PMC9034121 DOI: 10.1039/d0ra10789a] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 06/01/2021] [Indexed: 12/15/2022] Open
Abstract
Nanotechnology is an emerging field of science, engineering, and technology concerning the materials in nanoscale dimensions. Several materials are used in dentistry, which can be modified by applying nanotechnology. Nanotechnology has various applications in dentistry to achieve reliable treatment outcomes. The most common nanometals used in dental materials are gold, silver, copper oxide, magnesium oxide, iron oxide, cerium oxide, aluminum oxide, titanium dioxide, and zinc oxide (ZnO). ZnO nanoparticles (NPs), with their unparalleled properties such as high selectivity, enhanced cytotoxicity, biocompatibility, and easy synthesis as important materials were utilized in the field of dentistry. With this background, the present review aimed to discuss the current progress and gain an insight into applications of ZnO NPs in nanodentistry, including restorative, endodontic, implantology, periodontal, prosthodontics, and orthodontics fields.
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Affiliation(s)
- Hedaiat Moradpoor
- Department of Prosthodontics, School of Dentistry, Kermanshah University of Medical Sciences Kermanshah Iran
| | - Mohsen Safaei
- Advanced Dental Sciences Research Center, School of Dentistry, Kermanshah University of Medical Sciences Kermanshah Iran
| | - Hamid Reza Mozaffari
- Department of Oral and Maxillofacial Medicine, School of Dentistry, Kermanshah University of Medical Sciences Kermanshah Iran
| | - Roohollah Sharifi
- Department of Endodontics, School of Dentistry, Kermanshah University of Medical Sciences Kermanshah Iran
| | - Mohammad Moslem Imani
- Department of Orthodontics, School of Dentistry, Kermanshah University of Medical Sciences Kermanshah Iran
| | - Amin Golshah
- Department of Orthodontics, School of Dentistry, Kermanshah University of Medical Sciences Kermanshah Iran
| | - Negin Bashardoust
- Students Research Committee, Kermanshah University of Medical Sciences Kermanshah Iran
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Dalessandri D, Bindi M, Massetti F, Isola G, Migliorati M, Visconti L, Paganelli C, Bonetti S. Effectiveness of a Selective Etching Technique in Reducing White Spots Formation around Lingual Brackets: A Prospective Cohort Clinical Study. Coatings 2021; 11:572. [DOI: 10.3390/coatings11050572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The risk of developing white spot lesions (WSLs) after orthodontic treatment with lingual brackets is generally considered lower than with labial ones, even if plaque accumulation is frequently higher due to the increased difficulty level in oral hygiene maintenance. In this prospective clinical study, selective enamel etching technique effectiveness in reducing plaque accumulation and WSLs was tested. Thirty patients were bonded with a split-mouth approach: two randomly selected opposite quadrants were used as the test sides, using customized plastic etching guides, and the other two as control sides, applying traditional direct etching methods. The plaque presence around the braces was recorded after 1, 3, 6, and 12 months according to a lingual plaque accumulation index (LPAI), as was the presence of WSLs. PAI measured values were significantly higher in the control sides during the observation period. Test and control sides differed significantly for new WSL onset only after 12 months of treatment. Therefore, the present research demonstrated that this guided enamel etching technique allowed for significant reduction in plaque accumulation around the lingual brackets and reduced onset of white spots after one year of treatment.
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Karandish M, Pakshir M, Moghimi M, Jafarpour D. Evaluating the Mechanical Properties of Zinc-Coated Stainless Steel Orthodontic Wires Using Physical Vapor Deposition. Int J Dent 2021; 2021:6651289. [PMID: 34054962 DOI: 10.1155/2021/6651289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 03/30/2021] [Accepted: 04/26/2021] [Indexed: 12/02/2022] Open
Abstract
The aim of this study was to evaluate the mechanical properties of stainless steel (SS) orthodontic wires coated with zinc (Zn), using a Physical Vapored Deposition (PVD) machine. A total of 100 straight SS orthodontic wires were cut into pieces of 5 centimeters in length and were divided into two groups. Half of the wires were coated with Zn using a PVD machine, and the others remained uncoated. Tensile strength (n = 15), three-point bending (n = 15), and frictional resistance at 0° (n = 10) and 10° (n = 10) were measured to compare the mechanical properties of the Zn-coated and uncoated orthodontic wires using the universal testing machine. The surface of the coated wires was observed by SEM and AFM. An independent t-test, multivariate ANOVA, and measurement ANOVA were used for data analysis. SEM and AFM showed a homogenous Zn layer of 0.28 ± 0.006 µm on the SS wires. The tensile strength and three-point bending strength significantly increased after Zn coating of wires with the PVD method (P < 0.05). The friction resistance significantly reduced at both angulations following the coating procedure. The angle between the wire and bracket had no significant effect on the frictional resistance (P > 0.05). Coating with Zn improved the tensile and load-bending strength of SS orthodontic wires and reduced their frictional resistance which might be advantageous in terms of reducing the risk of root resorption during the orthodontic treatment.
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Elhelbawy N, Ellaithy M. Comparative evaluation of Stainless-steel wires and brackets coated with nanoparticles of Chitosan or Zinc oxide upon friction: An in vitro study. Int Orthod 2021; 19:274-280. [PMID: 33610486 DOI: 10.1016/j.ortho.2021.01.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/22/2021] [Accepted: 01/30/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The present study was performed to affirm surface characterization, as well as to compare the effect of coating of stainless-steel (SS) orthodontic brackets and wires by nanoparticles Chitosan (CTS) or Zinc oxide (ZnO) during friction. MATERIAL AND METHODS Seventy SS brackets for the upper right central incisors with a 0.022-inch system and seventy 0.019×0.025-inch SS rectangular wires, with and without ZnO and CTS nanoparticle coating, were used. Coating was analysed by SEM. A universal testing machine was used to calculate the friction between the wires and brackets. Statistical analysis was performed using one-way ANOVA and Tukey's tests. RESULTS Significant differences were detected between coated and uncoated wires and brackets for friction with either ZnO or CTS nanoparticles. The mean values of the wires and brackets coated with ZnO and CTS nanoparticles were 0.64±0.24N and 0.85±0.23N, respectively, while they were 1.79±0.61N for the uncoated group. In addition, there was a significant decrease of about 64% and 53% found after coating with ZnO and CTS nanoparticles, respectively. The results of CTS nanoparticle coating were consistent with those of ZnO nanoparticles. CONCLUSIONS Friction force decreased significantly after coating of CTS or ZnO nanoparticles. These nanoparticles provide an opportunity to reduce friction during tooth movement, resulting in better anchorage control, reduced treatment time and risk of root resorption.
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Affiliation(s)
- Nahla Elhelbawy
- Dental materials Department, Faculty of Dentistry, Tanta University, Tanta, Egypt.
| | - Mohammed Ellaithy
- Orthodontic Department, Faculty of Dentistry, Tanta University, Tanta, Egypt
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Blinova AV, Rumyantsev VA. [Nanomaterials in the modern dentistry (review)]. Stomatologiia (Mosk) 2021; 100:103-109. [PMID: 33874670 DOI: 10.17116/stomat2021100021103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Was to study the promising areas for using nanotechnologies in dentistry, existing methods of diagnostics, treatment and prevention of the dental diseases based on the properties of nanoparticles, to review the scientific literature devoted to this problem. In this literature review we use 86 sources: 1 Russian and 85 foreign articles. Analyzed articles were published within the last 5 years. The literature review summarizes and presents up-to-date methods of diagnosing, treating, and preventing dental disease that use nanotechnologies. Development and implementation of nanotechnological treatment are a promising direction for modern dentistry.
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Mollabashi V, Farmany A, Alikhani MY, Sattari M, Soltanian AR, Kahvand P, Banisafar Z. Effects of TiO 2-Coated Stainless Steel Orthodontic Wires on Streptococcus mutans Bacteria: A Clinical Study. Int J Nanomedicine 2020; 15:8759-8766. [PMID: 33204086 PMCID: PMC7667015 DOI: 10.2147/ijn.s258440] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 10/14/2020] [Indexed: 01/12/2023] Open
Abstract
Introduction The aim of this study was to clinically evaluate Streptococcus mutans adhesion on titanium dioxide–coated stainless steel orthodontic wires to decrease white-spot formation. Methods In this study, four groups of 17 patients each (n=68) aged 12–25 years participated. A titanium dioxide coating layer was deposited on 0.4572 mm stainless steel orthodontic wires using physical vapor deposition. The coated wires were randomly assigned to one jaw, and the opposite jaw received an uncoated wire as control. Patients were divided into groups according to the duration that wires were in their mouths: A) 1 week, B) 2 weeks, C) 3 weeks, and D) 4 weeks. Block randomization was used to assign patients to each group. At the end of the experiment, 20 mm of each wire (canine-to-canine area) was cut and cultured in S. mutans–specific medium. The culture plates were placed in an incubator containing 5% CO2 for 72 hours at 37°C, and then colonies were counted. MTT was used to test the biocompatibility of the coated and uncoated wires. To evaluate the stability of the coated titanium dioxide layer on the wires, titanium concentration on the saliva was determined using inductively coupled plasma mass spectroscopy. Results The Kruskal–Wallis test showed that there was no significant difference in colony counts among the coated wires during 1–4 weeks (p<0.48). In the uncoated-wire groups, colonys count at week 1 were higher than weeks 24 –(p<0.022). Wilcoxon’s test showed that the number of colonies was significantly different in groups A and C, but there was no significant difference in groups B or D. MTT-assay results showed that there was not a significant difference between cell viability in the coated-wire group and the control. The Kruskal–Wallis test showed that there was no significant difference in titanium concentration in the studied groups (p<0.834). Conclusion Application of titanium dioxide coating is effective in reducing bacterial adhesion at wire insertion.
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Affiliation(s)
- Vahid Mollabashi
- Orthodontic Department, Dental Faculty and Dental Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Abbas Farmany
- Dental Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | | | - Mohammad Sattari
- Division of Microstructure Physics, Department of Physics, Chalmers University of Technology, Gothenburg SE-412 96, Sweden
| | - Ali Reza Soltanian
- Modeling of Noncommunicable Diseases Research Center, Department of Biostatistics and Epidemiology, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Parnian Kahvand
- Orthodontic Department, Dental Faculty, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Ziba Banisafar
- Orthodontic Department, Dental Faculty, Hamadan University of Medical Sciences, Hamadan, Iran
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Brantley WA. Evolution, clinical applications, and prospects of nickel-titanium alloys for orthodontic purposes. J World Fed Orthod 2020; 9:S19-S26. [PMID: 33023727 DOI: 10.1016/j.ejwf.2020.08.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 08/12/2020] [Accepted: 08/13/2020] [Indexed: 11/15/2022]
Abstract
This review article presents an evolution of the nickel-titanium wires for orthodontics, following their introduction by the pioneering studies of Andreasen. The original nonsuperelastic wires were followed by the introduction of superelastic Japanese NiTi wire by Miura and colleagues and Chinese NiTi wire by Burstone and colleagues. Subsequently, new nickel-titanium wires with true shape memory in the oral environment were introduced. Manufacturers have marketed special heat-treated wires with variable force delivery at different positions along the archwire. Ion implantation and other surface modification techniques have been used by manufacturers to reduce in vivo nickel release from the nickel-titanium wires, provide a more esthetic appearance, decrease friction, and improve corrosion resistance. The use of several research techniques to provide supporting information about the structures and transformations, mechanical properties, and clinical failure for the different types of the nickel-titanium wires are summarized. The evolution of the ADA/ISO standard for evaluation of these wires is also described. The closing section focuses on the use of surface modification and special coatings for the nickel-titanium wires, a major recent and ongoing area of active research.
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Affiliation(s)
- William A Brantley
- Division of Restorative and Prosthetic Dentistry, College of Dentistry, The Ohio State University, Columbus, OH.
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27
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Venkatesan K, Kailasam V, Padmanabhan S. Evaluation of titanium dioxide coating on surface roughness of nickel-titanium archwires and its influence on Streptococcus mutans adhesion and enamel mineralization: A prospective clinical study. Am J Orthod Dentofacial Orthop 2020; 158:199-208. [PMID: 32576426 DOI: 10.1016/j.ajodo.2019.07.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 07/01/2019] [Accepted: 07/01/2019] [Indexed: 11/29/2022]
Abstract
INTRODUCTION This research aimed to evaluate the effect of titanium dioxide (TiO2) coating on surface roughness (Ra) of nickel-titanium (NiTi) archwires and its influence on Streptococcus mutans (S mutans) adhesion and enamel mineralization at the end of 1 month in orthodontic patients and to evaluate the integrity of the TiO2 coating. METHODS Twelve patients undergoing orthodontic treatment with preadjusted edgewise appliance formed the sample for this prospective clinical study. Uncoated NiTi archwires and TiO2 nanoparticle coated NiTi archwires in as-received condition and after 1 month of intraoral use were subjected to Ra analysis using surface profilometry, and surface topography using scanning electron microscopy. S mutans adhesion was evaluated on the retrieved archwires using real-time polymerase chain reaction (PCR). Enamel mineral content in the arches related to the uncoated and coated archwires was evaluated using DIAGNOdent. RESULTS After 1 month of intraoral use, both coated and uncoated archwires exhibited a rougher surface with coated archwires demonstrating greater quantum of increase (control, P = 0.002; experimental, P = 0.002). S mutans adhesion was more in uncoated archwires (P = 0.0005). The TiO2 nanoparticle coating on the NiTi archwires showed delamination, deterioration and was lost by 60% at the end of 1 month. Laser fluorescence values did not show any significant difference (control, P = 0.182; experimental, P = 0.105). CONCLUSIONS TiO2 nanoparticle coating on NiTi archwires causes an initial reduction in roughness; however, at the end of 1 month, the benefit was lost. S mutans adhesion was lesser on the coated wires, which could be attributed to reduced initial Ra and antibacterial property of TiO2. Orthodontic archwire appears to have a limited role in enamel demineralization.
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Affiliation(s)
- Keerthi Venkatesan
- Department of Orthodontics and Dentofacial Orthopedics, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India.
| | - Vignesh Kailasam
- Department of Orthodontics and Dentofacial Orthopedics, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India
| | - Sridevi Padmanabhan
- Department of Orthodontics and Dentofacial Orthopedics, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India
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Abstract
Oral cavity incessantly encounters a plethora of microorganisms. Plaque biofilm-a major cause of caries, periodontitis and other dental diseases-is a complex community of bacteria or fungi that causes infection by protecting pathogenic microorganisms from external drug agents and escaping the host defense mechanisms. Antimicrobial nanoparticles are promising because of several advantages such as ultra-small sizes, large surface-area-to-mass ratio and special physical and chemical properties. To better summarize explorations of antimicrobial nanoparticles and provide directions for future studies, we present the following critical review. The keywords "nanoparticle," "anti-infective or antibacterial or antimicrobial" and "dentistry" were retrieved from Pubmed, Scopus, Embase and Web of Science databases in the last five years. A total of 172 articles met the requirements were included and discussed in this review. The results show that superior antibacterial properties of nanoparticle biomaterials bring broad prospects in the oral field. This review presents the development, applications and underneath mechanisms of antibacterial nanoparticles in dentistry including restorative dentistry, endodontics, implantology, orthodontics, dental prostheses and periodontal field.
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Affiliation(s)
- Wenjing Song
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan 250012, China.
- Department of Periodontology, School of Stomatology, Shandong University, Jinan 250012, China.
| | - Shaohua Ge
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan 250012, China.
- Department of Periodontology, School of Stomatology, Shandong University, Jinan 250012, China.
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Affiliation(s)
- Ping Rong
- School of Materials Science and Engineering, Institute of Graphene at Shaanxi Key Laboratory of Catalysis, Shaanxi University of Technology, Hanzhong, China
| | - Shuai Ren
- School of Materials Science and Engineering, Institute of Graphene at Shaanxi Key Laboratory of Catalysis, Shaanxi University of Technology, Hanzhong, China
| | - Qi Yu
- School of Materials Science and Engineering, Institute of Graphene at Shaanxi Key Laboratory of Catalysis, Shaanxi University of Technology, Hanzhong, China
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Wang J, Zhou H, Guo G, Tan J, Wang Q, Tang J, Liu W, Shen H, Li J, Zhang X. Enhanced Anti-Infective Efficacy of ZnO Nanoreservoirs through a Combination of Intrinsic Anti-Biofilm Activity and Reinforced Innate Defense. ACS Appl Mater Interfaces 2017; 9:33609-33623. [PMID: 28884578 DOI: 10.1021/acsami.7b08864] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The increasing prevalence of implant-associated infections (IAIs) imposes a heavy burden on patients and medical providers. Bacterial biofilms are recalcitrant to antiseptic drugs and local immune defense and can attenuate host proinflammatory response to interfere with bacterial clearance. Zinc oxide nanoparticles (ZnO NPs) play a dual role in antibacterial and immunomodulatory activities but compromise the cytocompatibility because of their intracellular uptake. Here, ZnO NPs were immobilized on titanium to form homogeneous nanofilms (from discontinuous to continuous) through magnetron sputtering, and the possible antimicrobial activity and immunomodulatory effect of nano-ZnO films were investigated. Nano-ZnO films were found to prohibit sessile bacteria more than planktonic bacteria in vitro, and the antibacterial effect occurred in a dose-dependent manner. Using a novel mouse soft tissue IAI model, the in vivo results revealed that nano-ZnO films possessed outstanding antimicrobial efficacy, which could not be ascribed solely to the intrinsic anti-infective activity of nano-ZnO films observed in vitro. Macrophages and polymorphonuclear leukocytes (PMNs), two important factors in innate immune response, were cocultured with nano-ZnO and bacteria/lipopolysaccharide in vitro, and the nano-ZnO films could enhance the antimicrobial efficacy of macrophages and PMNs through promoting phagocytosis and secretion of inflammatory cytokines. This study provides insights into the anti-infective activity and mechanism of ZnO and consolidates the theoretical basis for future clinical applications of ZnO.
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Affiliation(s)
- Jiaxing Wang
- Department of Orthopaedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University , Shanghai 200233, China
| | - Huaijuan Zhou
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, China
| | - Geyong Guo
- Department of Orthopaedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University , Shanghai 200233, China
| | - Jiaqi Tan
- Department of Orthopaedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University , Shanghai 200233, China
| | - Qiaojie Wang
- Department of Orthopaedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University , Shanghai 200233, China
| | - Jin Tang
- Department of Clinical Laboratory, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University , Shanghai 200233, China
| | - Wei Liu
- Department of Orthopaedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University , Shanghai 200233, China
| | - Hao Shen
- Department of Orthopaedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University , Shanghai 200233, China
| | - Jinhua Li
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, China
- Department of Orthopaedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong , Pokfulam, Hong Kong 999077, China
- University of Chinese Academy of Sciences , Beijing 100049, China
| | - Xianlong Zhang
- Department of Orthopaedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University , Shanghai 200233, China
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Zarandi A, Novin M. Marginal bone loss around platform-switched and non-platform switched implants after two years of placement: a clinical trial. J Dent Res Dent Clin Dent Prospects 2017; 11:26-29. [PMID: 28413592 PMCID: PMC5390122 DOI: 10.15171/joddd.2017.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Accepted: 03/08/2017] [Indexed: 11/09/2022] Open
Abstract
Background. The present study was conducted to investigate the marginal bone loss around two different types of implant‒abutment junctions, called platform-switched (Implantium system) and non-platform switched (XiVE system) after two years of loading. Methods. Sixty-four implants in 49 patients were included in the study. The implants were placed in the posterior mandibular region according to the relevant protocols. The extent of bone loss around the implants was measured and compared after 24 months, using digital parallel periapical radiographs. Results. The means ± SE of bone loss values in the platform-switched and non-platform-switched groups were 0.47 ± 0.048 mm and 1.87 ± 0.124 mm, respectively. The difference between the two groups was statistically significant (P < 0.0001). Conclusion . The platform-switching technique seems to reduce the periimplant crestal bone resorption, which supports the long-term predictability of implant therapy.
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Affiliation(s)
- Ali Zarandi
- Assistant Professor, Department of Periodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
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Samiei M, Ghasemi N, Asl-Aminabadi N, Divband B, Golparvar-Dashti Y, Shirazi S. Zeolite-silver-zinc nanoparticles: Biocompatibility and their effect on the compressive strength of mineral trioxide aggregate. J Clin Exp Dent 2017; 9:e356-e360. [PMID: 28298974 PMCID: PMC5347281 DOI: 10.4317/jced.53392] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 10/01/2016] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND This study was carried out to evaluate the biocompatibility of zeolite-silver-zinc (Ze-Ag-Zn) nanoparticles and their effect on the compressive strength of Mineral Trioxide Aggregate (MTA). MATERIAL AND METHODS Biocompatibility was evaluated by an MTT assay on the pulmonary adenocarcinoma cells with 0.05, 0.1, 0.25, 0.5, 1 and 5 mg/mL concentrations of Ze-Ag-Zn. For compressive strength test, four groups containing 15 stainless-steel cylinders with an internal diameter of 4 and a height of 6 mm were prepared and MTA (groups 1 and 2) or MTA + 2% Ze-Ag-Zn (groups 3 and 4) were placed in the cylinders. The compressive strength was evaluated using a universal testing machine 4 days after mixing in groups 1 and 3, and 21 days after mixing in groups 2 and 4. RESULTS There was no significant difference between cytotoxicity of different concentrations. The highest (52.22±18.92 MPa) and lowest (19.57±5.76 MPa) compressive strength were observed in MTA group after 21 days and in MTA + 2% Ze-Ag-Zn group after four days, respectively. The effect of time and 2% Ze-Ag-Zn on the compressive strength were significant (P<0.05). Mixing MTA with Ze-Ag-Zn significantly reduced and passage of time from day four to 21 significantly increased the compressive strength. CONCLUSIONS Mixing MTA with 2% Ze-Ag-Zn had an adverse effect on the compressive strength of MTA, but this combination had no cytotoxic effects. Key words:Compressive strength, Cytotoxicity, Mineral Trioxide Aggregate, Nanoparticle, Zeolite-Silver-Zinc.
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Affiliation(s)
- Mohammad Samiei
- Associate Professor, Department of Endodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Negin Ghasemi
- Assistant Professor, Department of Endodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Naser Asl-Aminabadi
- Professor, Department of Pediatric Dentistry, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Baharak Divband
- Associate Professor, Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Yasamin Golparvar-Dashti
- Under Graduate Student, Student Research Committee, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sajjad Shirazi
- Research Fellow and Lecturer, Dental and Periodontal Research Center, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran; Nanotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Eskandarinezhad M, Shahveghar-Asl N, Sharghi R, Shirazi S, Shakouie S, Milani AS, Balaei E. Sealing efficacy of mineral trioxide aggregate with and without nanosilver for root end filling: An in vitro bacterial leakage study. J Clin Exp Dent 2017; 9:e27-e33. [PMID: 28149459 PMCID: PMC5268117 DOI: 10.4317/jced.53070] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 05/14/2016] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND Various materials have been added to mineral trioxide aggregate to enhance its properties. This study was aimed to compare the sealing efficacy of MTA with and without nanosilver using bacterial leakage approach. MATERIAL AND METHODS Seventy canine teeth were prepared and obturated. Then, after apical resection, the root-end cavities were prepared by ultrasonic retrotips. Teeth were randomly divided into 4 groups containing two experimental groups (n=30) and two negative and positive controls (n=5). In group 1 and 2, root-end cavities were respectively filled with MTA and MTA with nanosilver (by 1% weight). Leakage assessment was carried out by bacterial leakage apparatus with Enterococcus faecalis species. Leakage comparison between experimental groups was done using Mann-Whitney test by Spss 16 software at significancy level of 0.05. RESULTS The median bacterial leakages for MTA and MTA with nanosilver were 19 and 2, respectively. The mean bacterial leakages for MTA and MTA with nanosilver were 30.06±28.67 and 9.66±14.25, respectively. Mann-Whitney test indicated that there was a significant difference in bacterial leakage day between two experimental groups (P=0.002). CONCLUSIONS Based on the findings of this in-vitro bacterial leakage study, adding nanosilver to MTA decreased its sealing ability. Key words:Root canal therapy, root canal obturation, root canal filling materials, nanosilver, MTA.
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Affiliation(s)
- Mahsa Eskandarinezhad
- Assistant professor, Department of Endodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Naiemeh Shahveghar-Asl
- Post-graduate student, Department of Pediatric Dentistry, Faculty of Dentistry, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Reza Sharghi
- Assistant professor, Dental Caries Prevention Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Sajjad Shirazi
- Research Fellow and Lecturer, Dental and Periodontal Research Center, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran; Assistant Professor, Department of Community Dentistry, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sahar Shakouie
- Assistant professor, Department of Endodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amin-Salem Milani
- Assistant professor, Department of Endodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Esrafil Balaei
- Assistant Professor, Department of Community Dentistry, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
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