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Ho BV, van der Maarel-Wierink CD, van der Craats E, Weijenberg RAF, Lobbezoo F. Dental prosthesis plaque index of Augsburger and Elahi: Expansion and standardisation in community-dwelling frail older people. J Oral Rehabil 2024. [PMID: 39152544 DOI: 10.1111/joor.13835] [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: 04/18/2023] [Revised: 02/28/2024] [Accepted: 08/01/2024] [Indexed: 08/19/2024]
Abstract
BACKGROUND Inadequate daily oral hygiene care of dental prostheses could worsen general health of frail older people. The index of Augsburger and Elahi is often recommended to assess maxillary dental prosthesis plaque (DPP). OBJECTIVE To assess the reliability of an expanded and standardised DPP index of Augsburger and Elahi in trained and untrained examiners, and to determine the applicability of the index in community-dwelling frail older people. METHODS Ten community-dwelling frail older persons with complete and partial removable dental prostheses (RDPs) (mean ± SD age = 87.9 ± 8.4 years) participated. Seven persons were revisited after 3 months. The index was expanded with mandibular RDPs. Standardisation was achieved with a specially designed reference sheet. The RDPs were photographed after plaque colouring. Two trained examiners scored the photographs; thereafter, two untrained examiners. One trained examiner scored the photographs again after 3 weeks. Changes in DPP over the 3-month period were assessed with Wilcoxon signed-rank test. Inter- and intra-examiner reliability was assessed with intraclass correlation coefficients (ICCs). RESULTS The DPP scores did not change significantly over time (Z = -0.594, p = 0.553). Inter-examiner reliability was excellent in the trained examiners (ICC = 0.859-0.947), and fair-to-good in the untrained examiners (ICC = 0.671-0.703). Intra-examiner reliability was excellent (ICC = 0.941-0.962). CONCLUSION The proposed expansion and standardisation of the DPP index has an excellent inter- and intra-examiner reliability when performed by trained examiners, and a fair-to-good inter-examiner reliability by untrained examiners. Therefore, the index could be recommended for application in dental prostheses-wearing older persons and could be useful for awareness and education of professional and informal caregivers and the older persons themselves. TRAIL REGISTRATION The Netherlands Trail Register NTR6159.
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Affiliation(s)
- Bach Van Ho
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Claar Debora van der Maarel-Wierink
- Department of Oral Medicine, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Elinoor van der Craats
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Roxane Anthea Francesca Weijenberg
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Frank Lobbezoo
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
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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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Thu KM, Yeung AWK, Samaranayake L, Lam WYH. Denture Plaque Biofilm Visual Assessment Methods: A Systematic Review. Int Dent J 2024; 74:1-14. [PMID: 37479594 PMCID: PMC10829380 DOI: 10.1016/j.identj.2023.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/16/2023] [Accepted: 06/18/2023] [Indexed: 07/23/2023] Open
Abstract
Denture plaque, a biofilm that develops on denture surfaces, could contribute to many oral and systemic afflictions. Hence, a quantitative assessment of denture plaque is important to evaluate the denture hygiene of denture wearers, particularly to prevent plaque biofilm-associated diseases. The aim of this systematic review, therefore, was to review and summarize the visual denture hygiene assessment methods using denture plaque indices and with planimetries published in the literature. English language studies published up to March 2022 in four electronic databases, PubMed, Medline, Embase, and Cochrane Library, were searched, followed by a manual search of Google Scholar by two assessors. The review followed Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) whenever possible. Details of the visual assessment methods, including the types of denture assessed, its materials and its surfaces, as well as the use of a disclosing agent, were the main outcomes. Of 492 screened studies, 74 were included per the inclusion and exclusion criteria. Of these, 60 studies utilized various denture plaque indices while 18 used planimetries. 43 out of 60 studies with indices and 17 out of 18 studies with planimetries used disclosing agents for visual evaluation of plaque. A total of 21 indices were described in the included studies, of which seven graded a divided denture surface, while the remainder graded entire denture surface. Of the 18 planimetric assessments, one study quantified squares of the disclosed plaques on denture images, 16 studies quantified such pixels with computer programs, and a single study quantified points, pixels, and contour of plaque areas. In summary, denture plaque indices appear to be popular in denture plaque assessment due to their simplicity. Computerized planimetric assessment, though more time-consuming, provides a more accurate assessment of plaque load as it is less prone to subjectivity and assessor errors.
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Affiliation(s)
- Khaing Myat Thu
- Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
| | - Andy Wai Kan Yeung
- Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
| | - Lakshman Samaranayake
- Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
| | - Walter Yu Hang Lam
- Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China.
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Putra Wigianto AY, Ishida Y, Iwawaki Y, Goto T, Watanabe M, Sekine K, Hamada K, Murakami K, Fujii H, Ichikawa T. 2-methacryloyloxyethyl phosphorylcholine polymer treatment prevents Candida albicans biofilm formation on acrylic resin. J Prosthodont Res 2023; 67:384-391. [PMID: 36288959 DOI: 10.2186/jpr.jpr_d_22_00102] [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] [Indexed: 08/01/2023]
Abstract
PURPOSE We aimed to evaluate the effectiveness of photoreactive 2-methacryloyloxyethyl phosphorylcholine (MPC) in inhibiting Candida albicans biofilm formation on polymethyl methacrylate (PMMA) and assess its mechanism and need for re-application by evaluating its interaction with salivary mucin and durability during temperature changes. METHODS PMMA discs were used as specimens. The MPC coating was applied using the spray and cure technique for the treatment groups, whereas no coating was applied to the control. The MPC treatment (MT) groups were further differentiated based on the number of thermal cycles involved (0, 1000, 2500, and 5000). The optical density was measured to assess mucin adsorption (MA). Contact angle (CA) was calculated to evaluate surface hydrophilicity. The presence of MPC components on the PMMA surface was assessed using X-ray photoelectron spectroscopy (XPS). C. albicans biofilms were evaluated qualitatively (scanning electron microscope images) and quantitatively (colony-forming units (CFUs)). Statistical analysis was conducted using two-way analysis of variance and Tukey's multiple comparison test. RESULTS MA rate and CA increased significantly in the MT groups, which exhibited significantly fewer CFUs and thinner biofilms than those of the control group. Based on the XPS, MA, and CFU evaluations, the durability and efficacy of the MPC coating were considered stable up to 2500 thermal cycles. Additionally, a significant interaction was observed between mucin concentration and MPC efficacy. CONCLUSIONS The photoreactive MPC coating, which was resistant to temperature changes for approximately 3 months, effectively prevented C. albicans biofilm formation by modifying surface hydrophilicity and increasing mucin adsorption.
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Affiliation(s)
| | - Yuichi Ishida
- Department of Prosthodontics & Oral Rehabilitation, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Yuki Iwawaki
- Department of Prosthodontics & Oral Rehabilitation, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Takaharu Goto
- Department of Prosthodontics & Oral Rehabilitation, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Megumi Watanabe
- Department of Prosthodontics & Oral Rehabilitation, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Kazumitsu Sekine
- Department of Biomaterials and Bioengineering, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Kenichi Hamada
- Department of Biomaterials and Bioengineering, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Keiji Murakami
- Department of Clinical Nutrition, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare, Okayama, Japan
| | - Hideki Fujii
- Department of Oral Microbiology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Tetsuo Ichikawa
- Department of Prosthodontics & Oral Rehabilitation, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
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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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Awadalkreem F, Khalifa N, Satti A, Suliman AM. Rehabilitation of Patients with Compromised Ridge Support Using Immediately Loaded Corticobasal Implant-supported Prostheses: A Prospective Observational Study. J Contemp Dent Pract 2022; 23:971-978. [PMID: 37073908 DOI: 10.5005/jp-journals-10024-3416] [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: 04/20/2023]
Abstract
AIM The aim of this prospective study is to evaluate the treatment outcomes and patient satisfaction following the use of fixed immediately loaded corticobasal implant-supported prostheses. MATERIALS AND METHODS One hundred and seventy-four corticobasal implants (basal cortical screw, BCS implant design) were inserted in 20 consecutive patients with compromised ridge support. Implant survival and success were assessed using the James-Misch implant health quality scale and the Albrektsson criteria for implant success. The peri-implant health was evaluated at 1 week and 3, 6, 9, 12, and 18 months postoperatively. Moreover, the radiographic and prosthetic parameters and patient satisfaction were assessed. RESULTS The implants showed optimum implant health and a 100% survival rate with none (0%) of the implants failing, mobile, lost, or fractured. Using Wilcoxon signed-rank test, significant decreases in both the modified gingival indexes and the probable pocket depth (PPD) and slight significant increases in the plaque index (PI) at 3, 9, 12, and 18 months and a nonsignificant increase at 6-month follow-up were reported with a range of 0-1. The calculus index (CI) was zero at all follow-up visits. Radiographic evaluations revealed increases in the bone-to-implant contact. Evaluation of the prostheses showed some treatable complications, and all the patients were satisfied. CONCLUSION The use of corticobasal implant-supported prosthesis meets the patient's demand for an immediate, fixed treatment modality, with high survival and success rates, optimum peri-implant soft tissue health, and high reported satisfaction. CLINICAL SIGNIFICANCE Corticobasal implants can improve the patient's esthetic, phonetic, mastication, and quality of life with the advantage of eliminating the need of bone grafting procedures.
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Affiliation(s)
- Fadia Awadalkreem
- RAK College of Dental Sciences, RAK Medical and Health Sciences University, Ras Al Khaimah, United Arab Emirates; Department of Oral Rehabilitation, Faculty of Dentistry, University of Khartoum, Khartoum, Sudan Phone: +00971508094225, e-mail: ,
| | - Nadia Khalifa
- Chair of the Department of Preventive and Restorative Dentistry, University of Sharjah/Faculty of Dental Medicine, Sharjah, United Arab Emirates
| | - Asim Satti
- Department of Computing and Research, Federal Ministry of Health, Khartoum Teaching Dental Hospital, Khartoum, Sudan
| | - Ahmed Mohamed Suliman
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, University of Khartoum, Khartoum, Sudan
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Yamashita Y, Nishi Y, Murakami M, Harada K, Nishimura M. Impact of Surface Changes and Microbial Adhesion on Mucosal Surface Finishing of Resin Denture Bases by Shot Blast Polishing Using Viscoelastic Media. MATERIALS 2022; 15:ma15062275. [PMID: 35329731 PMCID: PMC8955808 DOI: 10.3390/ma15062275] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/17/2022] [Accepted: 03/18/2022] [Indexed: 02/04/2023]
Abstract
Surface changes and microbiological effects following shot blast polishing with viscoelastic media of the mucosal surface of resin denture bases were examined. Average surface roughness (Ra) and the depth of surface removal of specimens were measured over time, and the clinical number of microbial adhesions on the mucosal surface of dentures was clinically assessed. The results obtained showed no changes in Ra after 20 s of polishing, Ra of <0.2 µm, and a depth of surface removal < 20 µm. This method of finishing did not affect the fit of the mucosal surface of the dentures. Furthermore, the adhesion of microorganisms to the mucosal surface of dentures was significantly suppressed. Shot blast polishing with viscoelastic media is useful for finishing the mucosal surface of resin denture bases.
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Affiliation(s)
- Yusuke Yamashita
- Department of Oral and Maxillofacial Prosthodontics, Field of Oral and Maxillofacial Rehabilitation, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890-8544, Japan; (Y.Y.); (K.H.); (M.N.)
| | - Yasuhiro Nishi
- Department of Oral and Maxillofacial Prosthodontics, Field of Oral and Maxillofacial Rehabilitation, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890-8544, Japan; (Y.Y.); (K.H.); (M.N.)
- Correspondence: ; Tel.: +81-99-275-6222
| | - Mamoru Murakami
- Department of Removable Prosthodontics and Implant Dentistry, Advanced Dentistry Center, Kagoshima University Hospital, Kagoshima 890-8544, Japan;
| | - Kae Harada
- Department of Oral and Maxillofacial Prosthodontics, Field of Oral and Maxillofacial Rehabilitation, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890-8544, Japan; (Y.Y.); (K.H.); (M.N.)
| | - Masahiro Nishimura
- Department of Oral and Maxillofacial Prosthodontics, Field of Oral and Maxillofacial Rehabilitation, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890-8544, Japan; (Y.Y.); (K.H.); (M.N.)
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Accioni F, Vázquez J, Merinero M, Begines B, Alcudia A. Latest Trends in Surface Modification for Dental Implantology: Innovative Developments and Analytical Applications. Pharmaceutics 2022; 14:455. [PMID: 35214186 PMCID: PMC8876580 DOI: 10.3390/pharmaceutics14020455] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/15/2022] [Accepted: 02/18/2022] [Indexed: 12/27/2022] Open
Abstract
An increase in the world population and its life expectancy, as well as the ongoing concern about our physical appearance, have elevated the relevance of dental implantology in recent decades. Engineering strategies to improve the survival rate of dental implants have been widely investigated, focusing on implant material composition, geometry (usually guided to reduce stiffness), and interface surrounding tissues. Although efforts to develop different implant surface modifications are being applied in commercial dental prostheses today, the inclusion of surface coatings has gained special interest, as they can be tailored to efficiently enhance osseointegration, as well as to reduce bacterial-related infection, minimizing peri-implantitis appearance and its associated risks. The use of biomaterials to replace teeth has highlighted the need for the development of reliable analytical methods to assess the therapeutic benefits of implants. This literature review considers the state-of-the-art strategies for surface modification or coating and analytical methodologies for increasing the survival rate for teeth restoration.
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Affiliation(s)
- Francesca Accioni
- Departamento de Química Orgánica y Farmacéutica, Universidad de Sevilla, 41012 Seville, Spain; (F.A.); (M.M.)
| | - Juan Vázquez
- Departamento de Química Orgánica, Universidad de Sevilla, 41012 Seville, Spain;
| | - Manuel Merinero
- Departamento de Química Orgánica y Farmacéutica, Universidad de Sevilla, 41012 Seville, Spain; (F.A.); (M.M.)
- Departamento de Citología e Histología Normal y Patológica, Universidad de Sevilla, 41012 Seville, Spain
| | - Belén Begines
- Departamento de Química Orgánica y Farmacéutica, Universidad de Sevilla, 41012 Seville, Spain; (F.A.); (M.M.)
| | - Ana Alcudia
- Departamento de Química Orgánica y Farmacéutica, Universidad de Sevilla, 41012 Seville, Spain; (F.A.); (M.M.)
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Surface Modification to Modulate Microbial Biofilms-Applications in Dental Medicine. MATERIALS 2021; 14:ma14226994. [PMID: 34832390 PMCID: PMC8625127 DOI: 10.3390/ma14226994] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 11/12/2021] [Accepted: 11/12/2021] [Indexed: 12/21/2022]
Abstract
Recent progress in materials science and nanotechnology has led to the development of advanced materials with multifunctional properties. Dental medicine has benefited from the design of such materials and coatings in providing patients with tailored implants and improved materials for restorative and functional use. Such materials and coatings allow for better acceptance by the host body, promote successful implantation and determine a reduced inflammatory response after contact with the materials. Since numerous dental pathologies are influenced by the presence and activity of some pathogenic microorganisms, novel materials are needed to overcome this challenge as well. This paper aimed to reveal and discuss the most recent and innovative progress made in the field of materials surface modification in terms of microbial attachment inhibition and biofilm formation, with a direct impact on dental medicine.
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Ramburrun P, Pringle NA, Dube A, Adam RZ, D'Souza S, Aucamp M. Recent Advances in the Development of Antimicrobial and Antifouling Biocompatible Materials for Dental Applications. MATERIALS (BASEL, SWITZERLAND) 2021; 14:3167. [PMID: 34207552 PMCID: PMC8229368 DOI: 10.3390/ma14123167] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/31/2021] [Accepted: 06/02/2021] [Indexed: 12/18/2022]
Abstract
The risk of secondary bacterial infections resulting from dental procedures has driven the design of antimicrobial and antifouling dental materials to curb pathogenic microbial growth, biofilm formation and subsequent oral and dental diseases. Studies have investigated approaches based primarily on contact-killing or release-killing materials. These materials are designed for addition into dental resins, adhesives and fillings or as immobilized coatings on tooth surfaces, titanium implants and dental prosthetics. This review discusses the recent developments in the different classes of biomaterials for antimicrobial and antifouling dental applications: polymeric drug-releasing materials, polymeric and metallic nanoparticles, polymeric biocides and antimicrobial peptides. With modifications to improve cytotoxicity and mechanical properties, contact-killing and anti-adhesion materials show potential for incorporation into dental materials for long-term clinical use as opposed to short-lived antimicrobial release-based coatings. However, extended durations of biocompatibility testing, and adjustment of essential biomaterial features to enhance material longevity in the oral cavity require further investigations to confirm suitability and safety of these materials in the clinical setting. The continuous exposure of dental restorative and regenerative materials to pathogenic microbes necessitates the implementation of antimicrobial and antifouling materials to either replace antibiotics or improve its rational use, especially in the day and age of the ever-increasing problem of antimicrobial resistance.
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Affiliation(s)
- Poornima Ramburrun
- School of Pharmacy, Faculty of Natural Sciences, University of the Western Cape, Cape Town 7535, South Africa
| | - Nadine A Pringle
- School of Pharmacy, Faculty of Natural Sciences, University of the Western Cape, Cape Town 7535, South Africa
| | - Admire Dube
- School of Pharmacy, Faculty of Natural Sciences, University of the Western Cape, Cape Town 7535, South Africa
| | - Razia Z Adam
- Department of Restorative Dentistry, Faculty of Dentistry, University of the Western Cape, Cape Town 7505, South Africa
| | - Sarah D'Souza
- School of Pharmacy, Faculty of Natural Sciences, University of the Western Cape, Cape Town 7535, South Africa
| | - Marique Aucamp
- School of Pharmacy, Faculty of Natural Sciences, University of the Western Cape, Cape Town 7535, South Africa
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de Campos MR, Botelho AL, dos Reis AC. Nanostructured silver vanadate decorated with silver particles and their applicability in dental materials: A scope review. Heliyon 2021; 7:e07168. [PMID: 34141929 PMCID: PMC8188363 DOI: 10.1016/j.heliyon.2021.e07168] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 04/25/2021] [Accepted: 05/26/2021] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVES The present study aims to evaluate which studies evaluated the effectiveness of incorporating silver vanadate into dental materials and to analyze the influence of this incorporation on antimicrobial activity and material properties. DATA This review was led by the Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR) Checklist and the JBI Briggs Reviewers Manual to answer the following question:Does the nanostructured silver vanadate decorate with silver particles present anti-microbial activity when incorporated into dental materials without altering its mechanical properties? SOURCE An electronic search without restriction on the dates or languages was performed in PubMed/MEDLINE, Web of Science, Lilacs, Scopus, and Embase up until 2020. The search was specified and limited to the use of the words "nanostructured silver vanadate" in double quotation marks. STUDY SELECTION The initial search resulted in 55 articles. After an initial assessment and careful reading, 15 studies published between 2014 and 2020 were included in this review. CONCLUSIONS With the present scope review, it was possible to observe the good interaction between AgVO3 and dental materials and have a clarity that it is possible to use them in different types of materials in order to reduce the probability of infections resulting from the biofilm that is installed in them.
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Affiliation(s)
- Murilo Rodrigues de Campos
- Department of Dental Materials and Prosthodontics, Ribeirão Preto Dental School, University of São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - André Luís Botelho
- Department of Dental Materials and Prosthodontics, Ribeirão Preto Dental School, University of São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Andréa Cândido dos Reis
- Department of Dental Materials and Prosthodontics, Ribeirão Preto Dental School, University of São Paulo (USP), Ribeirão Preto, SP, Brazil
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Mangal U, Kwon JS, Choi SH. Bio-Interactive Zwitterionic Dental Biomaterials for Improving Biofilm Resistance: Characteristics and Applications. Int J Mol Sci 2020; 21:E9087. [PMID: 33260367 PMCID: PMC7730019 DOI: 10.3390/ijms21239087] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 11/27/2020] [Accepted: 11/27/2020] [Indexed: 02/07/2023] Open
Abstract
Biofilms are formed on surfaces inside the oral cavity covered by the acquired pellicle and develop into a complex, dynamic, microbial environment. Oral biofilm is a causative factor of dental and periodontal diseases. Accordingly, novel materials that can resist biofilm formation have attracted significant attention. Zwitterionic polymers (ZPs) have unique features that resist protein adhesion and prevent biofilm formation while maintaining biocompatibility. Recent literature has reflected a rapid increase in the application of ZPs as coatings and additives with promising outcomes. In this review, we briefly introduce ZPs and their mechanism of antifouling action, properties of human oral biofilms, and present trends in anti-biofouling, zwitterionic, dental materials. Furthermore, we highlight the existing challenges in the standardization of biofilm research and the future of antifouling, zwitterated, dental materials.
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Affiliation(s)
- Utkarsh Mangal
- Department of Orthodontics, Institute of Craniofacial Deformity, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea;
| | - Jae-Sung Kwon
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul 03722, Korea;
- BK21 FOUR Project, Yonsei University College of Dentistry, Seoul 03722, Korea
| | - Sung-Hwan Choi
- Department of Orthodontics, Institute of Craniofacial Deformity, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea;
- BK21 FOUR Project, Yonsei University College of Dentistry, Seoul 03722, Korea
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Antibacterial Properties of Nano-Ag Coating on Healing Abutment: An In Vitro and Clinical Study. Antibiotics (Basel) 2020; 9:antibiotics9060347. [PMID: 32575552 PMCID: PMC7345643 DOI: 10.3390/antibiotics9060347] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/10/2020] [Accepted: 06/17/2020] [Indexed: 12/16/2022] Open
Abstract
Peri-implantitis is an inflammatory disease with a relevant focus on the long-term success of dental implants and implant-supported prostheses. The present study focuses on the antibacterial effect of the silver nanoparticle and investigated the suppression of dental plaque adhesion on implant abutment and/or superstructure by micro-wave assistant nanosilver coating in vivo and in vitro. Nanosilver coating on pure titanium was prepared by microwave-assisted synthesis, and characterized by scanning electron microscopy and energy-dispersive X-ray spectroscopy. In vitro studies were conducted to analyze biocompatibility using MTS assay and fluorescence microscopy with human gingival fibroblasts to evaluate antibacterial activity. During the in vivo study, nanosilver coating was applied to the healing abutments, and the prevention of plaque accumulation on nanosilver coating was confirmed by a split-mouth randomized clinical trial. The aggregation of nano-sized particles was found on the titanium surface with an antibacterial effect. The coating had no cytotoxic effect on human gingival fibroblasts. The result of the clinical trial showed that the coating suppressed the dental plaque adhesion on the healing abutments. Nanosilver coating is a promising material with antibacterial properties and can be used for implant abutments and prostheses for preventing peri-implantitis.
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Fujiwara N, Murakami K, Yoshida K, Sakurai S, Kudo Y, Ozaki K, Hirota K, Fujii H, Suzuki M, Miyake Y, Yumoto H. Suppressive effects of 2-methacryloyloxyethyl phosphorylcholine (MPC)-polymer on the adherence of Candida species and MRSA to acrylic denture resin. Heliyon 2020; 6:e04211. [PMID: 32577575 PMCID: PMC7303995 DOI: 10.1016/j.heliyon.2020.e04211] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 05/19/2020] [Accepted: 06/09/2020] [Indexed: 02/06/2023] Open
Abstract
Objectives The effects of 2-methacryloyloxyethyl phosphorylcholine (MPC)-polymer on the adherence of microorganisms such as non-Candida albicans Candida (NCAC) and methicillin-resistant Staphylococcus aureus (MRSA), frequently detected in oral infections in immunocompromised and/or elderly people, to denture resin material, are still unclear. Here, we report the effects of MPC-polymer on the adherence of C. albicans, NCAC, and MRSA to acrylic denture resin. Methods Sixteen strains of C. albicans, seven strains of C. glabrata, two strains of C. tropicalis, one strain of C. parapsilosis, and six strains of MRSA were used. We cultured the fungal/bacterial strains and examined the cell growth and adherence of fungi/bacteria to mucin-coated acrylic denture resin plates (ADRP) with or without MPC-polymer coating, by scanning electron microscopy. The cell surface hydrophobicity of the fungal/bacterial strains was measured by the adsorption to hydrocarbons. Results MPC-polymer did not affect the growth of all strains of Candida species and MRSA, but significantly suppressed adherence to ADRP in most strains of C. albicans and all strains of NCAC and MRSA. A significant positive correlation was found between cell hydrophobicity and the reduction rates of microbial adherence to ADRP treated with 5% of MPC-polymer. Conclusions MPC-polymer treatment for acrylic resin material suppresses the adherence of C. albicans, NCAC and MRSA via their hydrophilicity interaction. Clinical significance The application of MPC-polymer for denture hygiene is potent to prevent oral candidiasis, denture stomatitis and opportunistic infection, caused by Candida species and MRSA, via suppressing the adherence of those fungus/bacteria.
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Affiliation(s)
- Natsumi Fujiwara
- Department of Oral Health Care Promotion, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto, Tokushima 770-8504, Japan
- Department of Oral Biology and Diagnostic Sciences, The Dental College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, United States
- Corresponding author.
| | - Keiji Murakami
- Department of Oral Microbiology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto, Tokushima 770-8504, Japan
| | - Kaya Yoshida
- Department of Oral Health Care Education, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto, Tokushima 770-8504, Japan
| | - Shunsuke Sakurai
- Life Science Products Division, NOF Corporation, 4-20-3 Ebisu, Shibuya, Tokyo 150-6019, Japan
| | - Yasusei Kudo
- Department of Oral Molecular Pathology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto, Tokushima 770-8504, Japan
| | - Kazumi Ozaki
- Department of Oral Health Care Promotion, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto, Tokushima 770-8504, Japan
| | - Katsuhiko Hirota
- Department of Medical Hygiene, Dental Hygiene Course, Kochi Gakuen College, 292-26 Asahi tenjin, Kochi 780-0955, Japan
| | - Hideki Fujii
- Department of Oral Microbiology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto, Tokushima 770-8504, Japan
| | - Maiko Suzuki
- Department of Oral Biology and Diagnostic Sciences, The Dental College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, United States
| | - Yoichiro Miyake
- Department of Oral Health Sciences, Faculty of Health and Welfare, Tokushima Bunri University, 180 Nishihama-Boji, Yamashiro, Tokushima 770-8514, Japan
| | - Hiromichi Yumoto
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto, Tokushima 770-8504, Japan
- Corresponding author.
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15
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A New Antibacterial Agent-Releasing Polydimethylsiloxane Coating for Polymethyl Methacrylate Dental Restorations. J Clin Med 2019; 8:jcm8111831. [PMID: 31683956 PMCID: PMC6912282 DOI: 10.3390/jcm8111831] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 10/29/2019] [Accepted: 10/29/2019] [Indexed: 12/14/2022] Open
Abstract
Chlorhexidine (CHX) has been incorporated into the composition of polymethyl methacrylate (PMMA) dental restorations to enhance their antimicrobial performance. However, the controlled delivery of CHX remains a challenge. Although previous findings with pure silica or polymer coatings demonstrated the resistance to bacterial adhesion, they did not provide antibacterial activity beyond the coated surface. Polydimethylsiloxane (PDMS) and mesoporous silica nanoparticles (MSNs) are widely used in biomedical science as a transfer medium in drug delivery systems. Here, the MSNs are used to encapsulate CHX, and the combination is added to PDMS. A thin coating film is formed on the PMMA, using oxygen plasma and thermal treatment. The liquid chromatography analysis shows that the coating film has high encapsulation efficiency and loading capacity, with a slow and stable release rate of CHX. The cytotoxicity tests also show that the coating does not affect the proinflammatory cytokines, cellular mitotic activity, or apoptotic cell death. The ability of the coating to release CHX indicates that the coating may even be effective against bacteria that are not directly in contact with the surface. This antibacterial protective film is expected to be a novel method to inhibit bacterial activity distal to the coated surfaces of PMMA restorations.
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16
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Chen DW, Yu HH, Luo LJ, Rajesh Kumar S, Chen CH, Lin TY, Lai JY, Jessie Lue S. Osteoblast Biocompatibility and Antibacterial Effects Using 2-Methacryloyloxyethyl Phosphocholine-Grafted Stainless-Steel Composite for Implant Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E939. [PMID: 31261737 PMCID: PMC6669514 DOI: 10.3390/nano9070939] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 06/23/2019] [Accepted: 06/26/2019] [Indexed: 11/17/2022]
Abstract
Poor osteogenesis and bacterial infections lead to an implant failure, so the enhanced osteogenic and antimicrobial activity of the implantable device is of great importance in orthopedic applications. In this study, 2-methacryloyloxyethyl phosphocholine (MPC) was grafted onto 316L stainless steel (SS) using a facile photo-induced radical graft polymerization method via a benzophenone (BP) photo initiator. Atomic force microscopy (AFM) was employed to determine the nanoscale morphological changes on the surface. The grafted BP-MPC layer was estimated to be tens of nanometers thick. The SS-BP-MPC composite was more hydrophilic and smoother than the untreated and BP-treated SS samples. Staphylococcus aureus (S. aureus) bacteria binding onto the SS-BP-MPC composite film surface was significantly reduced compared with the pristine SS and SS-BP samples. Mouse pre-osteoblast (MC3T3-E1) cells showed good adhesion on the MPC-modified samples and better proliferation and metabolic activity (73% higher) than the pristine SS sample. Biological studies revealed that grafting MPC onto the SS substrate enhanced the antibacterial efficiency and also retained osteoblast biocompatibility. This proposed procedure is promising for use with other implant materials.
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Affiliation(s)
- Dave W Chen
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Keelung City 401, Taiwan
- College of Medicine, Chang Gung University, Guishan District, Taoyuan City 333, Taiwan
| | - Hsin-Hsin Yu
- Department of Chemical and Materials Engineering and Green Technology Research Center, Chang Gung University, Guishan District, Taoyuan City 333, Taiwan
| | - Li-Jyuan Luo
- Graduate institute of Biomedical Engineering, Chang Gung University, Guishan District, Taoyuan City 333, Taiwan
| | - Selvaraj Rajesh Kumar
- Department of Chemical and Materials Engineering and Green Technology Research Center, Chang Gung University, Guishan District, Taoyuan City 333, Taiwan
| | - Chien-Hao Chen
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Keelung City 401, Taiwan
- College of Medicine, Chang Gung University, Guishan District, Taoyuan City 333, Taiwan
| | - Tung-Yi Lin
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Keelung City 401, Taiwan
- College of Medicine, Chang Gung University, Guishan District, Taoyuan City 333, Taiwan
| | - Jui-Yang Lai
- Graduate institute of Biomedical Engineering, Chang Gung University, Guishan District, Taoyuan City 333, Taiwan.
| | - Shingjiang Jessie Lue
- Department of Chemical and Materials Engineering and Green Technology Research Center, Chang Gung University, Guishan District, Taoyuan City 333, Taiwan.
- Department of Radiation Oncology, Chang Gung Memorial Hospital, Guishan District, Taoyuan City 333, Taiwan.
- Department of Safety, Health and Environment Engineering, Ming Chi University of Technology, Taishan District, New Taipei City 243, Taiwan.
- R&D Center for Membrane Technology, Chung Yuan Christian University, Chung Li District, Taoyuan City 320, Taiwan.
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17
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Koyama J, Fukazawa K, Ishihara K, Mori Y. In situ surface modification on dental composite resin using 2-methacryloyloxyethyl phosphorylcholine polymer for controlling plaque formation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 104:109916. [PMID: 31499946 DOI: 10.1016/j.msec.2019.109916] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 06/11/2019] [Accepted: 06/24/2019] [Indexed: 12/13/2022]
Abstract
Composite resins (CRs) are widely used as dental restorative materials for caries treatment. They cause problems of secondary caries since Streptococcus mutans stays in the dental plaque, which the surface exists and produces acidic compounds during metabolism. The dental plaque depositions are induced by the protein adsorption on the surface. Therefore, suppression of protein adsorption on the surface of the CRs is important for inhibiting the formation of plaque and secondary caries. In this study we developed a surface treatment to provide an antibiofouling nature to the CRs by chemical reaction with 2-methacryloyloxyethyl phosphorylcholine (MPC) polymers in the oral cavity during dental treatment. To carry out the photochemical reaction on the remaining polymerizable groups of CRs, we synthesized the MPC polymer with a polymerizable group in the side chain. The MPC polymer could bind on the surfaces of the CRs chemically under dental treatment procedures. The treated surface showed significant resistance to oral protein adsorption and bacterial adhesion even when the surface was brushed with a toothbrush. Thus, we concluded that the photochemical reaction of the MPC polymer with the CRs in the oral cavity was good for making an antibiofouling surface and preventing secondary caries.
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Affiliation(s)
- Jun Koyama
- Department of Dentistry, Oral and Maxillofacial Surgery, Jichi Medical University, 3311-1 Yakushiji, Simotsuke, Tochigi 329-0498, Japan; Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo 113-8656, Japan
| | - Kyoko Fukazawa
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo 113-8656, Japan
| | - Kazuhiko Ishihara
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo 113-8656, Japan.
| | - Yoshiyuki Mori
- Department of Dentistry, Oral and Maxillofacial Surgery, Jichi Medical University, 3311-1 Yakushiji, Simotsuke, Tochigi 329-0498, Japan
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18
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Ishihara K. Revolutionary advances in 2‐methacryloyloxyethyl phosphorylcholine polymers as biomaterials. J Biomed Mater Res A 2019; 107:933-943. [DOI: 10.1002/jbm.a.36635] [Citation(s) in RCA: 124] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 01/24/2019] [Indexed: 12/19/2022]
Affiliation(s)
- Kazuhiko Ishihara
- Department of Materials Engineering The University of Tokyo 7‐3‐1 Hongo, Bunkyo‐ku, Tokyo 113‐8656 Japan
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19
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Cao L, Xie X, Wang B, Weir MD, Oates TW, Xu HHK, Zhang N, Bai Y. Protein-repellent and antibacterial effects of a novel polymethyl methacrylate resin. J Dent 2018; 79:39-45. [PMID: 30248381 DOI: 10.1016/j.jdent.2018.09.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 09/13/2018] [Accepted: 09/20/2018] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVES Heat-cured resins are commonly used in orthodontics; however, there is a high incidence of caries, periodontal diseases and denture-induced stomatitis. The objectives of this study were to: (1) develop a new bioactive polymethyl methacrylate (PMMA) resin containing 2-methacryloyloxyethyl phosphorylcholine (MPC) and quaternary ammonium dimethylaminohexadecyl methacrylate (DMAHDM), and (2) investigate the effects on mechanical properties, protein-repellency and antibacterial properties. METHODS MPC and DMAHDM were mixed into a commercial acrylic resin (Nature Cryl™ MC). Mechanical properties were measured in three-point flexure. Surface roughness was assessed using atomic force microscopy (AFM). Protein adsorption onto the PMMA resin was measured using a micro bicinchoninic acid (BCA) method. A human saliva microcosm model was used to investigate the live/dead staining and metabolic activity of the biofilms. RESULTS Incorporation of 3% MPC and 1.5% DMAHDM into PMMA resin achieved protein repellent and antibacterial capabilities, without compromising the mechanical properties. PMMA resin with 3% MPC + 1.5% DMAHDM had protein adsorption that was 1/6 that of a commercial control (p < 0.05). The PMMA resin with 3% MPC + 1.5% DMAHDM had much greater reduction in biofilm growth than using MPC or DMAHDM alone (p < 0.05). CONCLUSIONS A bioactive PMMA resin with a combination of strong protein-repellent and antibacterial capabilities was developed for the first time. The new resin greatly reduced the biofilm growth and metabolic activity, without compromising its mechanical properties. SIGNIFICANCE Novel PMMA resin is promising for applications in orthodontic retainers and orthodontic appliances to reduce biofilm activity and protein adsorption around the resin.
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Affiliation(s)
- Li Cao
- 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
| | - Bo Wang
- Department of Orthodontics, School of Stomatology, Capital Medical University, Beijing, 100050, China; Department of Orthodontics, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, 116011, China
| | - Michael D Weir
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD 21201, USA
| | - Thomas W Oates
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD 21201, USA
| | - Hockin H K Xu
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD 21201, USA; Center for Stem Cell Biology & Regenerative Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Ning 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.
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20
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de Castro DT, do Nascimento C, Alves OL, de Souza Santos E, Agnelli JAM, Dos Reis AC. Analysis of the oral microbiome on the surface of modified dental polymers. Arch Oral Biol 2018; 93:107-114. [PMID: 29890443 DOI: 10.1016/j.archoralbio.2018.06.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 04/23/2018] [Accepted: 06/03/2018] [Indexed: 12/12/2022]
Abstract
OBJECTIVES This study characterized the microbial diversity of formed biofilm on the surface of acrylic resins modified with nanostructured silver vanadate decorated with silver nanoparticles (AgVO3) after incubation in human saliva. DESIGN Resin specimens prepared with AgVO3 at concentrations 0%, 1%, 2.5%, and 5% by either vacuum mixing or polymer solubilization were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). After 24 h and 7 days of saliva incubation, biofilm samples were collected from the surface of the specimens. The 16S rDNA genes were amplified, sequenced with the 454-Roche next-generation sequencing platform and analyzed to identify the Operational Taxonomic Units at the genus or higher level. RESULTS Significant differences in the dispersion pattern of the nanoparticles were observed among the two different methods of AgVO3 incorporation. In the microbiological analysis, a total of 103 genera and 7 more inclusive taxa, representing the phyla Bacteroidetes, Firmicutes and Proteobacteria were identified colonizing resin surfaces. The incorporation method of the AgVO3 had little to no significant effect on the microbiota of samples. Significant time and concentration-dependent responses to AgVO3 caused changes in the taxonomic profile at the phylum and genus level. CONCLUSIONS The results show differences in relation to the microbial diversity of modified resins during the initial phase of biofilm maturation. The incorporation of AgVO3 seems to significantly affect the colonizing microbiota.
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Affiliation(s)
- Denise Tornavoi de Castro
- School of Dentistry of Uberaba, Department of Biomaterials, University of Uberaba, Av. Nenê Sabino, 1801, Bairro Universitário, Uberaba, Minas Gerais, 38055-500, Brazil
| | - Cássio do Nascimento
- School of Dentistry of Ribeirão Preto, Department of Dental Materials and Prosthodontics, University of São Paulo, Av. Café s/no, Monte Alegre, Ribeirão Preto, São Paulo, 14040-904, Brazil
| | - Oswaldo Luiz Alves
- State University of Campinas (UNICAMP), Laboratory of Solid State Chemistry, Cidade Universitária Zeferino Vaz - Barão Geraldo, Campinas, São Paulo, 13083-859, Brazil
| | - Emerson de Souza Santos
- School of Pharmaceutical Sciences of Ribeirão Preto, Department of Clinical Toxicological and Bromatologic Analysis, University of São Paulo, Av. Café s/no, Monte Alegre, Ribeirão Preto, São Paulo, 14040-903, Brazil
| | - José Augusto Marcondes Agnelli
- Federal University of São Carlos (UFSCAR), Department of Materials Engineering, CP 676, São Carlos, São Paulo, 13565-905, Brazil
| | - Andréa Cândido Dos Reis
- School of Dentistry of Ribeirão Preto, Department of Dental Materials and Prosthodontics, University of São Paulo, Av. Café s/no, Monte Alegre, Ribeirão Preto, São Paulo, 14040-904, Brazil.
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21
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Ishihara K, Fukazawa K, Inoue Y, Koyama J, Mori Y, Kinoshita T, Hiranuma K, Yasuda N. Reliable surface modification of dental plastic substrates to reduce biofouling with a photoreactive phospholipid polymer. J Appl Polym Sci 2018. [DOI: 10.1002/app.46512] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Kazuhiko Ishihara
- Department of Materials Engineering; University of Tokyo; 7-3-1 Hongo Bunkyo-Ku Tokyo 113-8656 Japan
| | - Kyoko Fukazawa
- Department of Materials Engineering; University of Tokyo; 7-3-1 Hongo Bunkyo-Ku Tokyo 113-8656 Japan
| | - Yuuki Inoue
- Department of Materials Engineering; University of Tokyo; 7-3-1 Hongo Bunkyo-Ku Tokyo 113-8656 Japan
| | - Jun Koyama
- Department of Dentistry and Oral and Maxillofacial Surgery; Jichi Medical University; 3311-1 Yakusiji, Simotsuke 329-0498 Japan
| | - Yoshiyuki Mori
- Department of Dentistry and Oral and Maxillofacial Surgery; Jichi Medical University; 3311-1 Yakusiji, Simotsuke 329-0498 Japan
| | - Toru Kinoshita
- Kinoshita Dental Clinic; 3-12-7 Nishiogi-Kita Suginami 167-0042 Tokyo Japan
| | - Katsumi Hiranuma
- Department of Dentistry and Oral and Maxillofacial Surgery; Jichi Medical University; 3311-1 Yakusiji, Simotsuke 329-0498 Japan
- Kinoshita Dental Clinic; 3-12-7 Nishiogi-Kita Suginami 167-0042 Tokyo Japan
| | - Noboru Yasuda
- Kinoshita Dental Clinic; 3-12-7 Nishiogi-Kita Suginami 167-0042 Tokyo Japan
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