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Ribeiro AB, Pizziolo PG, Clemente LM, Aguiar HC, Poker BDC, Silva AAME, Makrakis LR, Fifolato MA, Souza GC, Oliveira VDC, Watanabe E, Lovato da Silva CH. Strategies for Preventing and Treating Oral Mucosal Infections Associated with Removable Dentures: A Scoping Review. Antibiotics (Basel) 2024; 13:273. [PMID: 38534708 DOI: 10.3390/antibiotics13030273] [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: 01/30/2024] [Revised: 03/01/2024] [Accepted: 03/14/2024] [Indexed: 03/28/2024] Open
Abstract
Oral infections occur due to contact between biofilm rich in Candida albicans formed on the inner surface of complete dentures and the mucosa. This study investigated historical advances in the prevention and treatment of oral mucosal infection and identified gaps in the literature. Bibliographic research was conducted, looking at PubMed, Embase, Web of Science, and Scopus, where 935 articles were found. After removing duplicates and excluding articles by reading the title and abstract, 131 articles were selected for full reading and 104 articles were included. Another 38 articles were added from the gray literature. This review followed the PRISMA-ScR guidelines. The historical period described ranges from 1969 to 2023, in which, during the 21st century, in vitro and in vivo studies became more common and, from 2010 to 2023, the number of randomized controlled trials increased. Among the various approaches tested are the incorporation of antimicrobial products into prosthetic materials, the improvement of oral and denture hygiene protocols, the development of synthetic and natural products for the chemical control of microorganisms, and intervention with local or systemic antimicrobial agents. Studies report good results with brushing combined with sodium hypochlorite, and new disinfectant solutions and products incorporated into prosthetic materials are promising.
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Affiliation(s)
- Adriana Barbosa Ribeiro
- Department of Dental Materials and Prosthesis, Ribeirão Preto School of Dentistry, University of São Paulo, Café Avenue S/N, Ribeirão Preto 14040-904, SP, Brazil
| | - Pillar Gonçalves Pizziolo
- Department of Dental Materials and Prosthesis, Ribeirão Preto School of Dentistry, University of São Paulo, Café Avenue S/N, Ribeirão Preto 14040-904, SP, Brazil
| | - Lorena Mosconi Clemente
- Department of Dental Materials and Prosthesis, Ribeirão Preto School of Dentistry, University of São Paulo, Café Avenue S/N, Ribeirão Preto 14040-904, SP, Brazil
| | - Helena Cristina Aguiar
- Department of Dental Materials and Prosthesis, Ribeirão Preto School of Dentistry, University of São Paulo, Café Avenue S/N, Ribeirão Preto 14040-904, SP, Brazil
| | - Beatriz de Camargo Poker
- Department of Dental Materials and Prosthesis, Ribeirão Preto School of Dentistry, University of São Paulo, Café Avenue S/N, Ribeirão Preto 14040-904, SP, Brazil
| | - Arthur Augusto Martins E Silva
- Department of Dental Materials and Prosthesis, Ribeirão Preto School of Dentistry, University of São Paulo, Café Avenue S/N, Ribeirão Preto 14040-904, SP, Brazil
| | - Laís Ranieri Makrakis
- Department of Dental Materials and Prosthesis, Ribeirão Preto School of Dentistry, University of São Paulo, Café Avenue S/N, Ribeirão Preto 14040-904, SP, Brazil
| | - Marco Aurelio Fifolato
- Department of Dental Materials and Prosthesis, Ribeirão Preto School of Dentistry, University of São Paulo, Café Avenue S/N, Ribeirão Preto 14040-904, SP, Brazil
| | - Giulia Cristina Souza
- Department of Dental Materials and Prosthesis, Ribeirão Preto School of Dentistry, University of São Paulo, Café Avenue S/N, Ribeirão Preto 14040-904, SP, Brazil
| | - Viviane de Cássia Oliveira
- Department of Dental Materials and Prosthesis, Ribeirão Preto School of Dentistry, University of São Paulo, Café Avenue S/N, Ribeirão Preto 14040-904, SP, Brazil
| | - Evandro Watanabe
- Department of Restorative Dentistry, Ribeirão Preto School of Dentistry, University of São Paulo, Café Avenue S/N, Ribeirão Preto 14040-904, SP, Brazil
| | - Cláudia Helena Lovato da Silva
- Department of Dental Materials and Prosthesis, Ribeirão Preto School of Dentistry, University of São Paulo, Café Avenue S/N, Ribeirão Preto 14040-904, SP, Brazil
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Le Bars P, Kouadio AA, Amouriq Y, Bodic F, Blery P, Bandiaky ON. Different Polymers for the Base of Removable Dentures? Part II: A Narrative Review of the Dynamics of Microbial Plaque Formation on Dentures. Polymers (Basel) 2023; 16:40. [PMID: 38201705 PMCID: PMC10780608 DOI: 10.3390/polym16010040] [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: 06/30/2023] [Revised: 12/04/2023] [Accepted: 12/08/2023] [Indexed: 01/12/2024] Open
Abstract
This review focuses on the current disparities and gaps in research on the characteristics of the oral ecosystem of denture wearers, making a unique contribution to the literature on this topic. We aimed to synthesize the literature on the state of current knowledge concerning the biological behavior of the different polymers used in prosthetics. Whichever polymer is used in the composition of the prosthetic base (poly methyl methacrylate acrylic (PMMA), polyamide (PA), or polyether ether ketone (PEEK)), the simple presence of a removable prosthesis in the oral cavity can disturb the balance of the oral microbiota. This phenomenon is aggravated by poor oral hygiene, resulting in an increased microbial load coupled with the reduced salivation that is associated with older patients. In 15-70% of patients, this imbalance leads to the appearance of inflammation under the prosthesis (denture stomatitis, DS). DS is dependent on the equilibrium-as well as on the reciprocal, fragile, and constantly dynamic conditions-between the host and the microbiome in the oral cavity. Several local and general parameters contribute to this balance. Locally, the formation of microbial plaque on dentures (DMP) depends on the phenomena of adhesion, aggregation, and accumulation of microorganisms. To limit DMP, apart from oral and lifestyle hygiene, the prosthesis must be polished and regularly immersed in a disinfectant bath. It can also be covered with an insulating coating. In the long term, relining and maintenance of the prosthesis must also be established to control microbial proliferation. On the other hand, several general conditions specific to the host (aging; heredity; allergies; diseases such as diabetes mellitus or cardiovascular, respiratory, or digestive diseases; and immunodeficiencies) can make the management of DS difficult. Thus, the second part of this review addresses the complexity of the management of DMP depending on the polymer used. The methodology followed in this review comprised the formulation of a search strategy, definition of the inclusion and exclusion criteria, and selection of studies for analysis. The PubMed database was searched independently for pertinent studies. A total of 213 titles were retrieved from the electronic databases, and after applying the exclusion criteria, we selected 84 articles on the possible microbial interactions between the prosthesis and the oral environment, with a particular emphasis on Candida albicans.
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Affiliation(s)
- Pierre Le Bars
- Department of Prosthetic Dentistry, Faculty of Dentistry, Nantes University, 1 Place Alexis Ricordeau, F-44042 Nantes, France; (A.A.K.); (Y.A.); (F.B.); (P.B.)
- Nantes University, Oniris, University of Angers, CHU Nantes (Clinical Investigation Unit Odontology), INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France;
| | - Alain Ayepa Kouadio
- Department of Prosthetic Dentistry, Faculty of Dentistry, Nantes University, 1 Place Alexis Ricordeau, F-44042 Nantes, France; (A.A.K.); (Y.A.); (F.B.); (P.B.)
- Department of Prosthetic Dentistry, Faculty of Dentistry, CHU, Abidjan P.O. Box 612, Côte d’Ivoire
| | - Yves Amouriq
- Department of Prosthetic Dentistry, Faculty of Dentistry, Nantes University, 1 Place Alexis Ricordeau, F-44042 Nantes, France; (A.A.K.); (Y.A.); (F.B.); (P.B.)
- Nantes University, Oniris, University of Angers, CHU Nantes (Clinical Investigation Unit Odontology), INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France;
| | - François Bodic
- Department of Prosthetic Dentistry, Faculty of Dentistry, Nantes University, 1 Place Alexis Ricordeau, F-44042 Nantes, France; (A.A.K.); (Y.A.); (F.B.); (P.B.)
- Nantes University, Oniris, University of Angers, CHU Nantes (Clinical Investigation Unit Odontology), INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France;
| | - Pauline Blery
- Department of Prosthetic Dentistry, Faculty of Dentistry, Nantes University, 1 Place Alexis Ricordeau, F-44042 Nantes, France; (A.A.K.); (Y.A.); (F.B.); (P.B.)
- Nantes University, Oniris, University of Angers, CHU Nantes (Clinical Investigation Unit Odontology), INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France;
| | - Octave Nadile Bandiaky
- Nantes University, Oniris, University of Angers, CHU Nantes (Clinical Investigation Unit Odontology), INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France;
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Nazarov D, Kozlova L, Rogacheva E, Kraeva L, Maximov M. Atomic Layer Deposition of Antibacterial Nanocoatings: A Review. Antibiotics (Basel) 2023; 12:1656. [PMID: 38136691 PMCID: PMC10740478 DOI: 10.3390/antibiotics12121656] [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: 10/18/2023] [Revised: 11/15/2023] [Accepted: 11/21/2023] [Indexed: 12/24/2023] Open
Abstract
In recent years, antibacterial coatings have become an important approach in the global fight against bacterial pathogens. Developments in materials science, chemistry, and biochemistry have led to a plethora of materials and chemical compounds that have the potential to create antibacterial coatings. However, insufficient attention has been paid to the analysis of the techniques and technologies used to apply these coatings. Among the various inorganic coating techniques, atomic layer deposition (ALD) is worthy of note. It enables the successful synthesis of high-purity inorganic nanocoatings on surfaces of complex shape and topography, while also providing precise control over their thickness and composition. ALD has various industrial applications, but its practical application in medicine is still limited. In recent years, a considerable number of papers have been published on the proposed use of thin films and coatings produced via ALD in medicine, notably those with antibacterial properties. The aim of this paper is to carefully evaluate and analyze the relevant literature on this topic. Simple oxide coatings, including TiO2, ZnO, Fe2O3, MgO, and ZrO2, were examined, as well as coatings containing metal nanoparticles such as Ag, Cu, Pt, and Au, and mixed systems such as TiO2-ZnO, TiO2-ZrO2, ZnO-Al2O3, TiO2-Ag, and ZnO-Ag. Through comparative analysis, we have been able to draw conclusions on the effectiveness of various antibacterial coatings of different compositions, including key characteristics such as thickness, morphology, and crystal structure. The use of ALD in the development of antibacterial coatings for various applications was analyzed. Furthermore, assumptions were made about the most promising areas of development. The final section provides a comparison of different coatings, as well as the advantages, disadvantages, and prospects of using ALD for the industrial production of antibacterial coatings.
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Affiliation(s)
- Denis Nazarov
- Peter the Great Saint Petersburg Polytechnic University, Polytechnicheskaya, 29, 195221 Saint Petersburg, Russia;
- Saint Petersburg State University, Universitetskaya Nab, 7/9, 199034 Saint Petersburg, Russia;
| | - Lada Kozlova
- Saint Petersburg State University, Universitetskaya Nab, 7/9, 199034 Saint Petersburg, Russia;
| | - Elizaveta Rogacheva
- Saint-Petersburg Pasteur Institute of Epidemiology and Microbiology, 14 Mira Street, 197101 Saint Petersburg, Russia; (E.R.); (L.K.)
| | - Ludmila Kraeva
- Saint-Petersburg Pasteur Institute of Epidemiology and Microbiology, 14 Mira Street, 197101 Saint Petersburg, Russia; (E.R.); (L.K.)
| | - Maxim Maximov
- Peter the Great Saint Petersburg Polytechnic University, Polytechnicheskaya, 29, 195221 Saint Petersburg, Russia;
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Yadfout A, Asri Y, Merzouk N, Regragui A. Denture Base Resin Coated with Titanium Dioxide (TiO 2): A Systematic Review. Int J Nanomedicine 2023; 18:6941-6953. [PMID: 38026530 PMCID: PMC10676651 DOI: 10.2147/ijn.s425702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
Background The main objective of this systematic review was to evaluate the effect of coating with titanium dioxide nanoparticles (TiO2 nanoparticle) on the surface condition of removable acrylic resin prosthetic base materials. Methods Our review is registered in the PROSPERO database under the identification code CRD42023397170. Electronic database searches of PubMed, Scopus and Science Direct including studies from January 2009 to January 2023 were conducted and supplemented with manual searches. Research questions were generated in accordance with the PICO strategy. The modified Consolidated Standards of Reporting Trials (CONSORT) checklist was used to evaluate the quality of the selected studies. Results Since the included studies were variable in design, a meta-analysis was not performed. The electronic searches retrieved 29 references that met the eligibility criteria, among which 5 studies matched the inclusion criteria for this review. Significant differences were detected between the TiO2 NP-coated and uncoated groups. The available data indicate that TiO2 NP coating elicits antimicrobial activity and improves the wear resistance of polymethylmethacrylate (PMMA) surfaces. Moreover, the nanoparticles provide high levels of glossiness and decelerate the process of color change of heat-cured acrylic resin, thus increasing the lifespan of dentures. Conclusion The collective results clearly indicate that TiO2 nanoparticle coating induces alterations in the surface properties of pure PMMA, enhancing the mechanical, physical and biological characteristics of the denture base material. Further studies are essential to identify the optimal thickness of coating and concentrations of nanoparticles for clinical applications.
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Affiliation(s)
- Asmae Yadfout
- Department of Removable Prosthodontics, Faculty of Dentistry, Mohammed V University, Rabat, Morocco
| | - Yousra Asri
- Department of Removable Prosthodontics, Faculty of Dentistry, Mohammed V University, Rabat, Morocco
| | - Nadia Merzouk
- Department of Removable Prosthodontics, Faculty of Dentistry, Mohammed V University, Rabat, Morocco
| | - Anissa Regragui
- Department of Removable Prosthodontics, Faculty of Dentistry, Mohammed V University, Rabat, Morocco
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Topcu Ersöz MB, Mumcu E, Avukat EN, Akay C, Pat S, Erdönmez D. Anti-adherent activity of nano-coatings deposited by thermionic vacuum arc plasma on C. albicans biofilm formation. Int J Artif Organs 2023; 46:520-526. [PMID: 37264904 DOI: 10.1177/03913988231178041] [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] [Indexed: 06/03/2023]
Abstract
BACKGROUND The purpose of this study was to analyze the anti-adherent activity of nano-coatings deposited by Thermionic Vacuum Arc plasma on C. albicans ATCC 10231 biofilm. MATERIALS AND METHODS A total of 80 disc-shaped (2 × 10 mm) polymethymethacrylate samples were prepared and divided into four groups with 10 samples in each group (Control, ZnO, SnO2, Ag) (n = 10). Using thermionic vacuum arc plasma, they were coated with ZnO, SnO2, and Ag. 3-(4,5-dimethyl-thiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and Crystal Viole (CV) assays were conducted for biofilm quantification. Scanning electron microscopy (SEM) was used to observe biofilm images of C. albicans biofilm. RESULTS MTT and CV mean values differ statistically significantly between all groups (p ⩽ 0.05). The SnO2 group had the lowest mean value, whereas the control group received the highest value. CONCLUSION SnO2 coating shown greater anti-adherent activity than either metal oxides. C. albicans biofilm formation on denture base surfaces is reduced following Thermionic Vacuum Arc plasma coating with SnO2.
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Affiliation(s)
| | - Emre Mumcu
- Department of Prosthodontics, Faculty of Dentistry, Eskişehir Osmangazi University, Eskişehir, Turkey
- Advanced Material Technologies Application and Research Center, Eskişehir Osmangazi University, Eskişehir, Turkey
- Translational Medicine Research and Clinical Center, Eskişehir Osmangazi University, Eskişehir, Turkey
| | - Esra Nur Avukat
- Department of Prosthodontics, Faculty of Dentistry, Eskişehir Osmangazi University, Eskişehir, Turkey
| | - Canan Akay
- Department of Prosthodontics, Faculty of Dentistry, Eskişehir Osmangazi University, Eskişehir, Turkey
- Advanced Material Technologies Application and Research Center, Eskişehir Osmangazi University, Eskişehir, Turkey
- Translational Medicine Research and Clinical Center, Eskişehir Osmangazi University, Eskişehir, Turkey
| | - Suat Pat
- Advanced Material Technologies Application and Research Center, Eskişehir Osmangazi University, Eskişehir, Turkey
- Translational Medicine Research and Clinical Center, Eskişehir Osmangazi University, Eskişehir, Turkey
- Department of Physics, Faculty of Science and Letters, Eskişehir Osmangazi University, Eskişehir, Turkey
| | - Demet Erdönmez
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Düzce University, Düzce, Turkey
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Kong X, Han Q, Jiang A, Wang Y, Li R, Wang Y, Xiao S, Wei R, Ma Y. BNN/TiO 2 nanocomposite system-modified dental flow resins and the mechanism of the enhancement of mechanical and antibacterial properties. Biomater Sci 2023; 11:2775-2786. [PMID: 36825578 DOI: 10.1039/d2bm01848a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Robust and antibacterial dental resins are essential for repairing the shape and function of the teeth. However, an ingenious way to achieve a synergistic enhancement of these two properties is still lacking. In this work, guided by molecular dynamics (MD) calculations, a boron nitride nanosheet (BNN)/titanium dioxide (TiO2) nanocomposite system was synthesized and used to modify the dental flow resin to enhance its mechanical and antimicrobial properties. The mechanical and antimicrobial enhancement mechanisms were further explored. The modified resin demonstrated outstanding performance improvement with 88.23%, 58.47%, 82.01%, and 55.06% improvement in compressive strength (CS), microhardness (MH), flexural strength (FS), and elastic modulus (EM), respectively. Moreover, the modified resin could effectively inhibit the growth of Streptococcus mutans (S. mutans) regardless of aging in water and the inhibition rates were more than 90%. In conclusion, the modified resin is expected to be an ideal restorative material for clinical applications.
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Affiliation(s)
- Xinzi Kong
- School/Hospital of Stomatology, Lanzhou University, Lanzhou 730000, PR China.
| | - Qize Han
- School/Hospital of Stomatology, Lanzhou University, Lanzhou 730000, PR China.
| | - Axue Jiang
- School/Hospital of Stomatology, Lanzhou University, Lanzhou 730000, PR China.
| | - Yurui Wang
- School/Hospital of Stomatology, Lanzhou University, Lanzhou 730000, PR China.
| | - Ruizhi Li
- School/Hospital of Stomatology, Lanzhou University, Lanzhou 730000, PR China.
| | - Yuting Wang
- School/Hospital of Stomatology, Lanzhou University, Lanzhou 730000, PR China.
| | - Shengjie Xiao
- School/Hospital of Stomatology, Lanzhou University, Lanzhou 730000, PR China.
| | - Rong Wei
- School/Hospital of Stomatology, Lanzhou University, Lanzhou 730000, PR China.
| | - Yu Ma
- School/Hospital of Stomatology, Lanzhou University, Lanzhou 730000, PR China.
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, Lanzhou University, Lanzhou 730000, PR China
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
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Yang B, Ginsburg S, Li W, Vilela MM, Shahmohammadi M, Takoudis CG, Wu CD. Effect of nano-ceramic coating on surface property and microbial adhesion to poly(methyl methacrylate). J Biomed Mater Res B Appl Biomater 2023. [PMID: 36920405 DOI: 10.1002/jbm.b.35247] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 02/20/2023] [Accepted: 02/23/2023] [Indexed: 03/16/2023]
Abstract
To improve surface properties of poly(methyl methacrylate) (PMMA) using nano-ceramic coatings and assess microbial adherence after long-term use of a chemical cleanser. Thirty-six PMMA samples were fabricated, polished and coated with a nano-thin TiO2 or mixed TiO2 /ZrO2 , with uncoated samples as controls. Six samples in each group (n = 12) were soaked in Polident denture cleaner 180 times for 30 min, while six were soaked in deionized water. Surface roughness of PMMA before and after being soaked in Polident was assessed. All samples were subsequently exposed to Candida albicans for 6 h and the adherent cells were determined by viable colony count. Two-way analysis of variance was performed for statistical analysis. No significant difference in surface roughness was noted between the uncoated and coated PMMA before soaking. After soaking, surface roughness of the uncoated PMMA increased from 0.164 to 0.532 μm (p < .05). No significant change was observed for TiO2 -coated (0.105-0.143 μm) or TiO2 /ZrO2 -coated PMMA (0.104-0.141 μm). Attachment of C. albicans to PMMA soaked in water showed significantly less attachment to both TiO2 -coated (1.4 × 103 cfu/ml) and TiO2 /ZrO2 -coated PMMA (1.6 × 103 cfu/ml) than to the uncoated PMMA (2.6 × 103 cfu/ml). After soaking in Polident, the uncoated PMMA had significantly less C. albicans attachment than coated samples. Less attachment was noted on the TiO2 /ZrO2 -coated PMMA then the TiO2 -coated samples (p < .05). Nano-ceramic TiO22 /ZrO2 coating of PMMA denture base material alters surface properties thus reduces oral microbial adhesion. It represents a promising alternative to the chemical disinfection for PMMA denture materials.
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Affiliation(s)
- Bin Yang
- Department of Restorative Dentistry, College of Dentistry, University of Illinois Chicago, Chicago, Illinois, USA
| | - Shari Ginsburg
- Department of Restorative Dentistry, College of Dentistry, University of Illinois Chicago, Chicago, Illinois, USA
| | - Wei Li
- Department of Pediatric Dentistry, College of Dentistry, University of Illinois Chicago, Chicago, Illinois, USA
| | - Marina Moscardini Vilela
- Department of Pediatric Dentistry, College of Dentistry, University of Illinois Chicago, Chicago, Illinois, USA
| | - Mina Shahmohammadi
- Department of Chemical Engineering, College of Engineering, University of Illinois Chicago, Chicago, Illinois, USA
| | - Christos G Takoudis
- Department of Chemical Engineering, College of Engineering, University of Illinois Chicago, Chicago, Illinois, USA.,Department of Biomedical Engineering, College of Engineering, University of Illinois Chicago, Chicago, Illinois, USA
| | - Christine D Wu
- Department of Pediatric Dentistry, College of Dentistry, University of Illinois Chicago, Chicago, Illinois, USA
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Tsujimura Y, Fukuyama T, Hamano N, Iwashita H, Watanabe M, Ino S. The stain resistant effect of an ultraviolet curable coating material on denture base resin. Dent Mater J 2023; 42:266-272. [PMID: 36624074 DOI: 10.4012/dmj.2022-148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
This study aimed to evaluate the effects of an ultraviolet (UV) curable coating material on denture base resin. The results of the three-point bending test showed no significant difference between treated and untreated specimens, suggesting that the UV curable coating material did not compromise the physical strength of denture base resin. The surface free energy measurement and the surface analysis with atomic force microscopy revealed superhydrophilicity and a regularly arranged structure on the coating surface, improving wettability. Moreover, untreated specimens were significantly discolored in the staining test. However, specimens treated with the UV curable coating material showed no significant difference in color with slight staining, suggesting excellent antifouling ability. Therefore, the UV curable coating material used in this study could contribute to simplifying hygiene without altering the physical properties of denture base resins.
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Affiliation(s)
- Yuya Tsujimura
- Department of Removable Prosthodontics, Graduate School of Dentistry, Kanagawa Dental University
| | - Takushi Fukuyama
- Department of Removable Prosthodontics, Graduate School of Dentistry, Kanagawa Dental University
| | - Naho Hamano
- Department of Removable Prosthodontics, Graduate School of Dentistry, Kanagawa Dental University
| | - Hideo Iwashita
- Department of Removable Prosthodontics, Graduate School of Dentistry, Kanagawa Dental University
| | - Mitsuhiro Watanabe
- Material & Surface Engineering Research Institute, Kanto Gakuin University
| | - Satoshi Ino
- Department of Removable Prosthodontics, Graduate School of Dentistry, Kanagawa Dental University
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9
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Cui H, You Y, Cheng GW, Lan Z, Zou KL, Mai QY, Han YH, Chen H, Zhao YY, Yu GT. Advanced materials and technologies for oral diseases. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2023; 24:2156257. [PMID: 36632346 PMCID: PMC9828859 DOI: 10.1080/14686996.2022.2156257] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/15/2022] [Accepted: 12/02/2022] [Indexed: 06/17/2023]
Abstract
Oral disease, as a class of diseases with very high morbidity, brings great physical and mental damage to people worldwide. The increasing burden and strain on individuals and society make oral diseases an urgent global health problem. Since the treatment of almost all oral diseases relies on materials, the rapid development of advanced materials and technologies has also promoted innovations in the treatment methods and strategies of oral diseases. In this review, we systematically summarized the application strategies in advanced materials and technologies for oral diseases according to the etiology of the diseases and the comparison of new and old materials. Finally, the challenges and directions of future development for advanced materials and technologies in the treatment of oral diseases were refined. This review will guide the fundamental research and clinical translation of oral diseases for practitioners of oral medicine.
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Affiliation(s)
- Hao Cui
- Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Yan You
- Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Guo-Wang Cheng
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zhou Lan
- Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Ke-Long Zou
- Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Qiu-Ying Mai
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yan-Hua Han
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Hao Chen
- Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Yu-Yue Zhao
- Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Guang-Tao Yu
- Stomatological Hospital, Southern Medical University, Guangzhou, China
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Chee LKM, Bishal AK, Bhatia HS, Wee AG, Takoudis C, Sukotjo C, Yuan JCC. Effect of Nano Ceramic Coating on Color Perceptibility and Acceptability of Polymethylmethacrylate: In Vitro and Clinical Study. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8748. [PMID: 36556554 PMCID: PMC9782542 DOI: 10.3390/ma15248748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/08/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
The effect of a novel nano-ceramic coating (TiO2) using an atomic layer deposition (ALD) technique on the surface of polymethyl methacrylate (PMMA) material was investigated. The patients' and clinicians' perception and acceptance of the PMMA color with TiO2 coating were also examined. In vitro color measurement was performed on thirty specimens (light, original, and dark pink) before and after TiO2 coating. Patients' and clinicians' perception and acceptance of color changes on PMMA were measured and compared. Descriptive and analytic statistics were analyzed (a = 0.05). TiO2 films were successfully deposited on the PMMA specimen by the ALD technique. Color changes after TiO2 coating were observed on all three PMMA shades, significantly higher than the established 50:50% perceptibility threshold, but below the established 50:50% acceptability threshold. The percentage of patients that perceived a color difference after TiO2 coating were 83.3%, 63.9%, and 77.8% for light, original, and dark pink, respectively. The percentages of clinicians that were satisfied with the color difference were 96.4%, 80%, and 69.2% for light, original, and dark pink, respectively. Color changes after TiO2 coating were observed, but below the acceptable threshold. The clinical survey demonstrated that a color difference was perceived but was clinically acceptable. In general, laypeople have lower perception and higher acceptance of changes in PMMA color than clinicians.
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Affiliation(s)
| | | | - Harshdeep Singh Bhatia
- Department of Chemical Engineering, College of Engineering, University of Illinois Chicago, 929 W. Taylor St., Chicago, IL 60608, USA
| | - Alvin G. Wee
- Department of Restorative Sciences, School of Dentistry, University of Minnesota, 9-470 Moos Tower, 515 Delaware St. SE, Minneapolis, MN 55455, USA
| | - Christos Takoudis
- Department of Chemical Engineering, College of Engineering, University of Illinois Chicago, 929 W. Taylor St., Chicago, IL 60608, USA
- Department of Biomedical Engineering, College of Engineering, University of Illinois Chicago, 851 S. Morgan, Chicago, IL 60607, USA
| | - Cortino Sukotjo
- Department of Restorative Dentistry, College of Dentistry, University of Illinois Chicago, 801 S. Paulina, Chicago, IL 60612, USA
| | - Judy Chia-Chun Yuan
- Department of Restorative Dentistry, College of Dentistry, University of Illinois Chicago, 801 S. Paulina, Chicago, IL 60612, USA
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AlQahtani GM, AlSuhail HS, Alqater NK, AlTaisan SA, Akhtar S, Khan SQ, Gad MM. Polymethylmethacrylate denture base layering as a new approach for the addition of antifungal agents. J Prosthodont 2022; 32:298-308. [PMID: 35801581 DOI: 10.1111/jopr.13561] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 06/15/2022] [Indexed: 12/01/2022] Open
Abstract
PURPOSE To introduce a new technique, denture base layering, for the addition of titanium dioxide nanoparticles (TiO2 NPs) to polymethylmethacrylate (PMMA) and to investigate the effects of the layering technique on Candida albicans (C. albicans) adhesion and on surface roughness, hardness, translucency, and flexural strength. MATERIALS & METHODS In total, 210 heat-polymerized acrylic resin specimens were prepared as discs (15 × 2 mm) for testing C. albicans adhesion (n = 70) and surface roughness, hardness, and translucency (n = 70); and as acrylic plates (65 × 10 × 2.5 mm) for testing flexural strength (n = 70). Specimens were divided into 4 groups: control (n = 30), one-layer (n = 60), double-layer (n = 60), and dotted-layer (n = 60) according to the packing and layering technique. Each group was divided according to the concentration of TiO2 NPs 1% and 2.5% (n = 10). The control group comprised one layer of unmodified resin. The one-layer group comprised one layer of a mixture of PMMA/TiO2 NPs packed conventionally. The double-layer group consisted of two different layers packed in two steps, as follows: unmodified resin first, followed by a continuous thin layer of the PMMA/TiO2 NPs mixture. Similarly, the dotted-layer group consisted of two different layers packed in two steps, as follows: unmodified resin first, followed by a thin layer of the PMMA/TiO2 NPs. However, the second mixture was added in a dotted manner. The direct culture method for C. albicans adhesion before and after ultraviolet light activation, and surface roughness, hardness, translucency, and flexural strength were measured. An analysis of variance and Tukey's post hoc test were used for data analysis (α = 0.05). RESULTS The addition of TiO2 NPs reduced C. albicans adhesion (P ˂.001). However, no significant difference was found between both concentrations within the same group before and after ultraviolet light activation (P >0.05), except in the 1% dotted-layer (P = .022). Surface roughness and hardness were not affected by the additions of different concentrations of TiO2 NPs (P = .905) and (P = .059), respectively. Translucency was significantly reduced in all the groups (P ˂.001) except in the 1% dotted-layer (P = .332). Flexural strength decreased as the TiO2 NPs concentration increased, with the greatest reduction in strength observed in the one-layer group (P ˂.001). CONCLUSIONS The double and dotted layering techniques were effective in reducing C. albicans adhesion, without affecting surface roughness, hardness, or flexural strength. However, translucency was reduced in all the groups, except the 1% dotted-layer group. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Ghaida M AlQahtani
- College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Haneen S AlSuhail
- College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Norah K Alqater
- College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Sarah A AlTaisan
- College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Sultan Akhtar
- Department of Biophysics, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Soban Q Khan
- Department of Dental Education, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Mohammed M Gad
- Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
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Recent Advances in Theoretical Development of Thermal Atomic Layer Deposition: A Review. NANOMATERIALS 2022; 12:nano12050831. [PMID: 35269316 PMCID: PMC8912810 DOI: 10.3390/nano12050831] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 02/24/2022] [Accepted: 02/25/2022] [Indexed: 02/06/2023]
Abstract
Atomic layer deposition (ALD) is a vapor-phase deposition technique that has attracted increasing attention from both experimentalists and theoreticians in the last few decades. ALD is well-known to produce conformal, uniform, and pinhole-free thin films across the surface of substrates. Due to these advantages, ALD has found many engineering and biomedical applications. However, drawbacks of ALD should be considered. For example, the reaction mechanisms cannot be thoroughly understood through experiments. Moreover, ALD conditions such as materials, pulse and purge durations, and temperature should be optimized for every experiment. It is practically impossible to perform many experiments to find materials and deposition conditions that achieve a thin film with desired applications. Additionally, only existing materials can be tested experimentally, which are often expensive and hazardous, and their use should be minimized. To overcome ALD limitations, theoretical methods are beneficial and essential complements to experimental data. Recently, theoretical approaches have been reported to model, predict, and optimize different ALD aspects, such as materials, mechanisms, and deposition characteristics. Those methods can be validated using a different theoretical approach or a few knowledge-based experiments. This review focuses on recent computational advances in thermal ALD and discusses how theoretical methods can make experiments more efficient.
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Gad M, Abualsaud R, Khan S. Hydrophobicity of denture base resins: A systematic review and meta-analysis. J Int Soc Prev Community Dent 2022; 12:139-159. [PMID: 35462737 PMCID: PMC9022381 DOI: 10.4103/jispcd.jispcd_213_21] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/27/2021] [Accepted: 09/28/2021] [Indexed: 11/16/2022] Open
Abstract
Objectives: The aim of this article is to review the factors that attract Candida albicans to denture base resin (DBR) and to verify the influence of different surface treatments, chemical modification, or structural reinforcements on the properties of DBR. Materials and Methods: Searches were carried out in PubMed, Scopus, WOS, Google Scholar, EMBASE, and J-stage databases. The search included articles between 1999 and 2020. This study followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. The keywords used during the search were “Candida albicans,” “Denture base,” “PMMA,” “Acrylic resin,” “Surface properties,” “hydrophobicity/hydrophilicity,” “contact angle,” and “surface free energy.” English full-text articles involving in-vitro studies with different acrylic resin modifications were included, whereas abstracts, dissertations, reviews, and articles in languages other than English were excluded. A meta-analysis was performed where appropriate. Results: Out of the 287 articles, 21 articles conformed to inclusion criteria. Sixteen articles were subjected to meta-analysis using random-effects model at 95% confidence interval. Results showed that DBR coatings/plasma coatings were effective methods to modify surface properties with estimated contact angle (CA) of 59.37° [95% confidence interval (CI): 53.69, 65.04]/55.87° (95% CI: 50.68, 61.06) and surface roughness (Ra) of 0.55 µm (95% CI: 0.52, 0.58)/0.549 µm (95% CI: 0.5, 0.59), respectively. Antifungal particle incorporation into poly(methylmethacrylate) DBR also produced similar effects with an estimated Ra of 0.16 µm (95% CI: 0.134, 0.187). Conclusion: The three properties responsible for C. albicans adhesion to DBR were Ra, CA, and surface free energy in terms of hydrophobicity. Therefore, the correlations between the hydrophobicity of DBR and C. albicans adhesion should be considered during future investigations for Candida-related denture stomatitis.
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Wang Z, Li Z, Zhang X, Yu Y, Feng Q, Chen J, Xie W. A bone substitute composed of polymethyl-methacrylate bone cement and Bio-Gene allogeneic bone promotes osteoblast viability, adhesion and differentiation. Biomed Mater Eng 2021; 32:29-37. [PMID: 33427728 DOI: 10.3233/bme-201139] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Increasing reports on new cement formulations that address the shortcomings of PMMA bone cements and various active components have been introduced to improve the biological activity of PMMA cement. OBJECTIVE Evaluating the biological properties of PMMA cements reinforced with Bio-Gene allogeneic bone. METHODS The MC3T3-E1 mouse osteoblast-like cells were utilized to determine the effects of Bio-Gene + PMMA on osteoblast viability, adhesion and differentiation. RESULTS The combination of allogeneic bone and PMMA increased the number of adherent live cells compared to both control group and PMMA or Bio-Gene group. Scanning electron microscopy observed that the number of cells adhered to Bio-Gene + PMMA was larger than Bio-Gene and PMMA group. Compared with the control and PMMA or Bio-Gene group, the level of ALP and the number of calcium nodules after osteoinduction was remarkably enhanced in Bio-Gene + PMMA group. Additionally, the combination of Bio-Gene and PMMA induced the protein expression of osteocalcin, osterix and collagen I. CONCLUSION The composition of PMMA and allogeneic bone could provide a more beneficial microenvironment for osteoblast proliferation, adhesion and differentiation. PMMA bone cement reinforced with Bio-Gene allogeneic bone may act as a novel bone substitute to improve the biological activity of PMMA cement.
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Affiliation(s)
- Zhikun Wang
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.,Department of Orthopedics, SSL Central Hospital of Dongguan City, Guangdong, China
| | - Zaixue Li
- Department of Orthopedics, SSL Central Hospital of Dongguan City, Guangdong, China
| | - Xiansen Zhang
- Department of Orthopedics, SSL Central Hospital of Dongguan City, Guangdong, China
| | - Yingfeng Yu
- Department of Orthopedics, SSL Central Hospital of Dongguan City, Guangdong, China
| | - Qingyu Feng
- Department of Orthopedics, SSL Central Hospital of Dongguan City, Guangdong, China
| | - Jianting Chen
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Wenwei Xie
- Department of Orthopedics, SSL Central Hospital of Dongguan City, Guangdong, China
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Atsu SS, Aksan ME, Bulut AC, Tamimi F. The effect of nanocoatings of SiO 2, TiO 2, and ZrO 2 on titanium-porcelain bonding. J Prosthet Dent 2021; 126:222.e1-222.e8. [PMID: 34090660 DOI: 10.1016/j.prosdent.2021.04.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 04/16/2021] [Accepted: 04/19/2021] [Indexed: 10/21/2022]
Abstract
STATEMENT OF PROBLEM Durable titanium-porcelain bonding is challenging because of the formation of a thick oxide layer on the surface during porcelain firing. PURPOSE The purpose of this in vitro study was to evaluate how atomic layer deposition (ALD) of different oxide coatings affected titanium-porcelain bonding and failure types. MATERIAL AND METHODS Forty-four airborne-particle abraded Type-2 titanium specimens were coated by ALD with either SiO2, TiO2, or ZrO2 (n=11) at a thickness of 30 nm, whereas control specimens were left uncoated (n=11) (airborne-particle abraded only). The surface roughness of the specimens was analyzed with a profilometer before applying porcelain (Vita Titankeramic). Titanium-porcelain bonding was analyzed by using a 3-point bend test. Surface properties and titanium-porcelain interfaces were examined under scanning electron microscopy combined with energy-dispersive spectroscopy, and failure types were evaluated by using a stereomicroscope. Surface roughness and bond strength data were analyzed by 1-way ANOVA and Tukey HSD tests. Failure type data were analyzed by the Fisher-Freeman-Halton exact test (α=.05). RESULTS All nanocoatings increased surface roughness values, but only TiO2 and ZrO2 coatings showed statistically significant higher roughness than the control surfaces (P<.001). Specimens coated with SiO2 (28.59 ±4.37 MPa) and TiO2 (26.86 ±3.66 MPa) presented significantly higher bonding strength than control (22.04 ±4.59 MPa) specimens (P<.01). Fracture types of different groups were not statistically different (P>.05). CONCLUSIONS Nanocoating titanium surfaces with SiO2 and TiO2 by using the ALD technique significantly improved titanium-porcelain bonding.
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Affiliation(s)
- Saadet Saglam Atsu
- Visiting Professor, Faculty of Dentistry, McGill University, Montreal, QC, Canada; Professor, Department of Prosthodontics, Faculty of Dentistry, University of Kırıkkale, Kırıkkale, Turkey.
| | | | - Ali Can Bulut
- Associate Professor, Department of Prosthodontics, Faculty of Dentistry, University of Kırıkkale, Kırıkkale, Turkey
| | - Faleh Tamimi
- Professor, College of Dental Medicine, QU Health, Qatar University, Doha, Qatar
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Forte MA, Silva RM, Tavares CJ, Silva RFE. Is Poly(methyl methacrylate) (PMMA) a Suitable Substrate for ALD?: A Review. Polymers (Basel) 2021; 13:1346. [PMID: 33924112 PMCID: PMC8074321 DOI: 10.3390/polym13081346] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/16/2021] [Accepted: 04/16/2021] [Indexed: 12/12/2022] Open
Abstract
Poly (methyl methacrylate) (PMMA) is a thermoplastic synthetic polymer, which displays superior characteristics such as transparency, good tensile strength, and processability. Its performance can be improved by surface engineering via the use of functionalized thin film coatings, resulting in its versatility across a host of applications including, energy harvesting, dielectric layers and water purification. Modification of the PMMA surface can be achieved by atomic layer deposition (ALD), a vapor-phase, chemical deposition technique, which permits atomic-level control. However, PMMA presents a challenge for ALD due to its lack of active surface sites, necessary for gas precursor reaction, nucleation, and subsequent growth. The purpose of this review is to discuss the research related to the employment of PMMA as either a substrate, support, or masking layer over a range of ALD thin film growth techniques, namely, thermal, plasma-enhanced, and area-selective atomic layer deposition. It also highlights applications in the selected fields of flexible electronics, biomaterials, sensing, and photocatalysis, and underscores relevant characterization techniques. Further, it concludes with a prospective view of the role of ALD in PMMA processing.
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Affiliation(s)
- Marta Adriana Forte
- CF-UM-UP, Centre of Physics of Minho and Porto Universities, Campus of Azurém, University of Minho, 4800-058 Guimarães, Portugal; (M.A.F.); (C.J.T.)
| | - Ricardo Manuel Silva
- CICECO, Department of Materials and Ceramic Engineering, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Carlos José Tavares
- CF-UM-UP, Centre of Physics of Minho and Porto Universities, Campus of Azurém, University of Minho, 4800-058 Guimarães, Portugal; (M.A.F.); (C.J.T.)
| | - Rui Ferreira e Silva
- CICECO, Department of Materials and Ceramic Engineering, University of Aveiro, 3810-193 Aveiro, Portugal;
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Wang Z, Zhang X, Li Z, Feng Q, Chen J, Xie W. [Biomechanical study of polymethyl methacrylate bone cement and allogeneic bone for strengthening sheep vertebrae]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2021; 35:471-476. [PMID: 33855832 DOI: 10.7507/1002-1892.202011061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Objective To investigate the feasibility and mechanical properties of polymethyl methacrylate (PMMA) bone cement and allogeneic bone mixture to strengthen sheep vertebrae with osteoporotic compression fracture. Methods A total of 75 lumbar vertebrae (L 1-L 5) of adult goats was harvested to prepare the osteoporotic vertebral body model by decalcification. The volume of vertebral body and the weight and bone density before and after decalcification were measured. And the failure strength, failure displacement, and stiffness were tested by using a mechanical tester. Then the vertebral compression fracture models were prepared and divided into 3 groups ( n=25). The vertebral bodies were injected with allogeneic bone in group A, PMMA bone cement in group B, and mixture of allogeneic bone and PMMA bone cement in a ratio of 1∶1 in group C. After CT observation of the implant distribution in the vertebral body, the failure strength, failure displacement, and stiffness of the vertebral body were measured again. Results There was no significant difference in weight, bone density, and volume of vertebral bodies before decalcification between groups ( P>0.05). After decalcification, there was no significant difference in bone density, decreasing rate, and weight between groups ( P>0.05). There were significant differences in vertebral body weight and bone mineral density between pre- and post-decalcification in 3 groups ( P<0.05). CT showed that the implants in each group were evenly distributed in the vertebral body with no leakage. Before fracture, the differences in vertebral body failure strength, failure displacement, and stiffness between groups were not significant ( P>0.05). After augmentation, the failure displacement of group A was significantly greater than that of groups B and C, and the failure strength and stiffness were less than those of groups B and C, the failure displacement of group C was greater than that of group B, and the failure strength and stiffness were less than those of group B, the differences between groups were significant ( P<0.05). Except for the failure strength of group A ( P>0.05), the differences in the failure strength, failure displacement, and stiffness before fracture and after augmentation in the other groups were significant ( P<0.05). Conclusion The mixture of allogeneic bone and PMMA bone cement in a ratio of 1∶1 can improve the strength of the vertebral body of sheep osteoporotic compression fractures and restore the initial stiffness of the vertebral body. It has good mechanical properties and can be used as one of the filling materials in percutaneous vertebroplasty.
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Affiliation(s)
- Zhikun Wang
- Department of Orthopedics, SSL Central Hospital of Dongguan City, Affiliated Shilong People's Hospital of Southern Medical University, Dongguan Guangdong, 523326, P.R.China
| | - Xiansen Zhang
- Department of Orthopedics, SSL Central Hospital of Dongguan City, Affiliated Shilong People's Hospital of Southern Medical University, Dongguan Guangdong, 523326, P.R.China
| | - Zaixue Li
- Department of Orthopedics, SSL Central Hospital of Dongguan City, Affiliated Shilong People's Hospital of Southern Medical University, Dongguan Guangdong, 523326, P.R.China
| | - Qingyu Feng
- Department of Orthopedics, SSL Central Hospital of Dongguan City, Affiliated Shilong People's Hospital of Southern Medical University, Dongguan Guangdong, 523326, P.R.China
| | - Jianting Chen
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou Guangdong, 510010, P.R.China
| | - Wenwei Xie
- Department of Orthopedics, SSL Central Hospital of Dongguan City, Affiliated Shilong People's Hospital of Southern Medical University, Dongguan Guangdong, 523326, P.R.China
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Hashemi Astaneh S, Faverani LP, Sukotjo C, Takoudis CG. Atomic layer deposition on dental materials: Processing conditions and surface functionalization to improve physical, chemical, and clinical properties - A review. Acta Biomater 2021; 121:103-118. [PMID: 33227485 DOI: 10.1016/j.actbio.2020.11.024] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 11/05/2020] [Accepted: 11/10/2020] [Indexed: 12/20/2022]
Abstract
Surface functionalization is an effective approach to improve and enhance the properties of dental materials. A review of atomic layer deposition (ALD) in the field of dental materials is presented. ALD is a well-established thin film deposition technique. It is being used for surface functionalization in different technologies and biological related applications. With film thickness control down to Ångström length scale and uniform conformal thin films even on complex 3D substrates, high quality thin films and their reproducibility are noteworthy advantages of ALD over other thin film deposition methods. Low temperature ALD allows temperature sensitive substrates to be functionalized with high quality ultra-thin films too. In the current work, ALD is elaborated as a promising method for surface modification of dental materials. Different aspects of conventional dental materials that can be enhanced using ALD are discussed. Also, the influence of different ALD thin films and their microstructure on the surface properties, corrosion-resistance, antibacterial activity, biofilm formation, and osteoblast compatibility are addressed. Depending on the stage of advancement for the studied materials reported in the literature, these studies are then categorized into four stages: fabrication & characterization, in vitro studies, in vivo studies, and human tests. Materials coated with ALD thin films with potential dental applications are also presented here and they are categorized as stage 1. The purpose of this review is to organize and present the up to date ALD research on dental materials. The current study can serve as a guide for future work on using ALD for surface functionalization and resulting property tuning of materials in real world dental applications.
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Agnihotri R, Gaur S, Albin S. Nanometals in Dentistry: Applications and Toxicological Implications-a Systematic Review. Biol Trace Elem Res 2020; 197:70-88. [PMID: 31782063 DOI: 10.1007/s12011-019-01986-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 11/14/2019] [Indexed: 01/28/2023]
Abstract
Nanotechnology is a vital part of health care system, including the dentistry. This branch of technology has been incorporated into various fields of dentistry ranging from diagnosis to prevention and treatment. The latter involves application of numerous biomaterials that help in restoration of esthetic and functional dentition. Over the past decade, these materials were modified through the incorporation of metal nanoparticles (NP) like silver (Ag), gold (Au), titanium (Ti), zinc (Zn), copper (Cu), and zirconia (Zr). They enhanced antimicrobial, mechanical, and regenerative properties of these materials. However, lately, the toxicological implications of these nanometal particles have been realized. They were associated with cytotoxicity, genotoxicity altered inflammatory processes, and reticuloendothelial system toxicity. As dental biomaterials containing metal NPs remain functional in oral cavity over prolonged periods, it is important to know their toxicological effects in humans. With this background, the present systematic review is aimed to gain an insight into the plausible applications and toxic implications of nano-metal particles as related to dentistry.
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Affiliation(s)
- Rupali Agnihotri
- Department of Periodontology, Manipal College of Dental Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Sumit Gaur
- Department of Pedodontics and Preventive Dentistry, Manipal College of Dental Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India.
| | - Sacharia Albin
- Engineering Department, Norfolk State University, Norfolk, VA, 23504, USA
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Makvandi P, Gu JT, Zare EN, Ashtari B, Moeini A, Tay FR, Niu LN. Polymeric and inorganic nanoscopical antimicrobial fillers in dentistry. Acta Biomater 2020; 101:69-101. [PMID: 31542502 DOI: 10.1016/j.actbio.2019.09.025] [Citation(s) in RCA: 112] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 07/26/2019] [Accepted: 09/17/2019] [Indexed: 02/08/2023]
Abstract
Failure of dental treatments is mainly due to the biofilm accumulated on the dental materials. Many investigations have been conducted on the advancements of antimicrobial dental materials. Polymeric and inorganic nanoscopical agents are capable of inhibiting microorganism proliferation. Applying them as fillers in dental materials can achieve enhanced microbicidal ability. The present review provides a broad overview on the state-of-the-art research in the field of antimicrobial fillers which have been adopted for incorporation into dental materials over the last 5 years. The antibacterial agents and applications are described, with the aim of providing information for future investigations. STATEMENT OF SIGNIFICANCE: Microbial infection is the primary cause of dental treatment failure. The present review provides an overview on the state-of-art in the field of antimicrobial nanoscopical or polymeric fillers that have been applied in dental materials. Trends in the biotechnological development of these antimicrobial fillers over the last 5 years are reviewed to provide a backdrop for further advancement in this field of research.
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Maya-Cornejo J, Rodríguez-Gómez FJ, Molina GA, Galindo-de-la-Rosa J, Ledesma-García J, Hernández-Martínez ÁR, Esparza R, Pérez R, Estévez M. Electrochemical Study of a Hybrid Polymethyl Methacrylate Coating using SiO 2 Nanoparticles toward the Mitigation of the Corrosion in Marine Environments. MATERIALS 2019; 12:ma12193216. [PMID: 31581421 PMCID: PMC6804275 DOI: 10.3390/ma12193216] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 08/24/2019] [Accepted: 08/27/2019] [Indexed: 11/16/2022]
Abstract
The demand for hydrophobic polymer-based protective coatings to impart high corrosion resistance has increased recently. The increase of the hydrophobicity in a hybrid coating is a new challenge, for that reason and in order to protect a metallic surface of oxidant agents, a poly (methyl methacrylate) (PMMA) coating with the addition of a different amount of silicon dioxide (SiO2) was developed. The hybrid coating was applied on a sample of stainless steel AISI 304 by the dip-coating method. The characterization of the coatings was determined by electrochemical impedance spectroscopy and with a scanning electrochemical microscopy. The best coatings were PMMA and PMMA + SiO2 0.01% that exhibits a real impedance in the Nyquist diagram of 760 and 427,800 MΩ⋅cm2, respectively, and the modulus of the real impedance in the Bode diagram present values of 2.2 × 108 and 3.3 × 108 Ω⋅cm2. Moreover, the phase angle presents constant values around 75° to 85° and 85° for the PMMA and PMMA + SiO2 0.01%, respectively. Moreover, the values of the real resistance for the PMMA + SiO2 0.01% coating present values in the order of Mega-ohms despite the coating exhibits an artificial defect in their surface. The contact angle test showed that the hydrophobicity of the hybrid PMMA + SiO2 0.01% coating is higher than that of the pure PMMA coatings. The hybrid PMMA + SiO2 coatings developed in this work are a very interesting and promising area of study in order to develop efficient products to protect metallic surfaces from corrosion phenomenon.
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Affiliation(s)
- José Maya-Cornejo
- Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de Mexico, Boulevard Juriquilla 3001, Santiago de Querétaro 76230, Qro., Mexico.
| | - Francisco J Rodríguez-Gómez
- Departamento de Ingeniería Metalúrgica, Facultad de Química, Universidad Nacional Autónoma de Mexico, Ciudad Universitaria 04510, Mexico D.F., Mexico.
| | - Gustavo A Molina
- Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de Mexico, Boulevard Juriquilla 3001, Santiago de Querétaro 76230, Qro., Mexico.
| | - Juan Galindo-de-la-Rosa
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Pedro Escobedo 76703, Qro., Mexico.
| | - Janet Ledesma-García
- Facultad de Ingeniería, Universidad Autónoma de Querétaro, Centro Universitario Cerro de las Campanas, Santiago de Querétaro 76010, Qro., Mexico.
| | - Ángel R Hernández-Martínez
- Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de Mexico, Boulevard Juriquilla 3001, Santiago de Querétaro 76230, Qro., Mexico.
| | - Rodrigo Esparza
- Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de Mexico, Boulevard Juriquilla 3001, Santiago de Querétaro 76230, Qro., Mexico.
| | - Ramiro Pérez
- Instituto de Ciencias Físicas, Universidad Nacional Autónoma de Mexico, Av. Universidad s/n, Cuernavaca 62210, Mor., Mexico.
| | - Miriam Estévez
- Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de Mexico, Boulevard Juriquilla 3001, Santiago de Querétaro 76230, Qro., Mexico.
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