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Ma Z, Chen Y, Wang R, Zhu M. Synthesis of polymerizable betulin maleic diester derivative for dental restorative resins with antibacterial activity. Dent Mater 2024; 40:941-950. [PMID: 38719709 DOI: 10.1016/j.dental.2024.04.007] [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: 12/05/2023] [Revised: 04/29/2024] [Accepted: 04/30/2024] [Indexed: 06/15/2024]
Abstract
OBJECTIVE Bisphenol A glycidyl methacrylate (Bis-GMA) is of great importance for dental materials as the preferred monomer. However, the presence of bisphenol-A (BPA) core in Bis-GMA structure causes potential concerns since it is associated with endocrine diseases, developmental abnormalities, and cancer lesions. Therefore, it is desirable to develop an alternative replacement for Bis-GMA and explore the intrinsic relationship between monomer structure and resin properties. METHODS Here, the betulin maleic diester derivative (MABet) was synthesized by a facile esterification reaction using plant-derived betulin and maleic anhydride as raw materials. Its chemical structure was confirmed by 1H and 13C NMR spectra, FT-IR spectra, and HR-MS, respectively. The as-synthesized MABet was then used as polymerizable comonomer to partially or completely substitute Bis-GMA in a 50:50 Bis-GMA: TEGDMA resin (5B5T) to formulate dental restorative resins. These were then determined for the viscosity behavior, light transmittance, real-time degree of conversion, residual monomers, mechanical performance, cytotoxicity, and antibacterial activity against Streptococcus mutans (S. mutans) in detail. RESULTS Among all experimental resins, increasing the MABet concentration to 50 wt% made the resultant 5MABet5T resin have a maximum in viscosity and appear dark yellowish after polymerization. In contrast, the 1MABet4B5T resin with 10 wt% MABet possessed comparable shear viscosity and polymerization conversion (46.6 ± 1.0% in 60 s), higher flexural and compressive strength (89.7 ± 7.8 MPa; 345.5 ± 14.4 MPa) to those of the 5B5T control (48.5 ± 0.6%; 65.7 ± 6.7 MPa; 223.8 ± 57.1 MPa). This optimal resin also had significantly lower S. mutans colony counts (0.35 ×108 CFU/mL) than 5B5T (7.6 ×108 CFU/mL) without affecting cytocompatibility. SIGNIFICANCE Introducing plant-derived polymerizable MABet monomer into dental restorative resins is an effective strategy for producing antibacterial dental materials with superior physicochemical property.
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Affiliation(s)
- Zhiyuan Ma
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Yifan Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Ruili Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Meifang Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
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Seo JH, Kim KM, Kwon JS. Antibacterial and Physicochemical Properties of Orthodontic Resin Cement Containing ZnO-Loaded Halloysite Nanotubes. Polymers (Basel) 2023; 15:polym15092045. [PMID: 37177192 PMCID: PMC10180918 DOI: 10.3390/polym15092045] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 04/19/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023] Open
Abstract
Demineralized white lesions are a common problem when using orthodontic resin cement, which can be prevented with the addition of antibacterial substances. However, the addition of antibacterial substances such as zinc oxide alone may result in the deterioration of the resin cement's functions. Halloysite nanotubes (HNTs) are known to be biocompatible without adversely affecting the mechanical properties of the material while having the ability to load different substances. The purpose of this study was to prepare orthodontic resin cement containing HNT fillers loaded with ZnO (ZnO/HNTs) and to investigate its mechanical, physical, chemical, and antibacterial properties. A group without filler was used as a control. Three groups containing 5 wt.% of HNTs, ZnO, and ZnO/HNTs were prepared. TEM and EDS measurements were carried out to confirm the morphological structure of the HNTs and the successful loading of ZnO onto the HNTs. The mechanical, physical, chemical, and antibacterial properties of the prepared orthodontic resin cement were considered. The ZnO group had high flexural strength and water absorption but a low depth of cure (p < 0.05). The ZnO/HNTs group showed the highest shear bond strength and film thickness (p < 0.05). In the antibacterial test, the ZnO/HNTs group resulted in a significant decrease in the biofilm's metabolic activity compared to the other groups (p < 0.05). ZnO/HNTs did not affect cell viability. In addition, ZnO was cytotoxic at a concentration of 100% in the extract. The nanocomposite developed in this study exhibited antimicrobial activity against S. mutans while maintaining the mechanical, physical, and chemical properties of orthodontic resin cement. Therefore, it has the potential to be used as an orthodontic resin cement that can prevent DWLs.
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Affiliation(s)
- Jeong-Hye Seo
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul 03722, Republic of Korea
- BK21 PLUS Project, Yonsei University College of Dentistry, Seoul 03722, Republic of Korea
| | - Kwang-Mahn Kim
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul 03722, Republic of Korea
| | - Jae-Sung Kwon
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul 03722, Republic of Korea
- BK21 PLUS Project, Yonsei University College of Dentistry, Seoul 03722, Republic of Korea
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He J, Lassila L, Garoushi S, Vallittu P. Tailoring the monomers to overcome the shortcomings of current dental resin composites - review. Biomater Investig Dent 2023; 10:2191621. [PMID: 37090482 PMCID: PMC10120559 DOI: 10.1080/26415275.2023.2191621] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023] Open
Abstract
Dental resin composites (DRCs) have become the first choice among different restorative materials for direct anterior and posterior restorations in the clinic. Though the properties of DRCs have been improved greatly in recent years, they still have several shortcomings, such as volumetric shrinkage and shrinkage stress, biofilm development, lack of radio-opacity for some specific DRCs, and estrogenicity, which need to be overcome. The resin matrix, composed of different monomers, constitutes the continuous phase and determine the performance of DRCs. Thus, the chemical structure of the monomers plays an important role in modifying the properties of DRCs. Numerous researchers have taken to design and develop novel monomers with specific functions for the purpose of fulfilling the needs in dentistry. In this review, the development of monomers in DRCs were highlighted, especially focusing on strategies aimed at reducing volumetric shrinkage and shrinkage stress, endowing bacteriocidal and antibacterial adhesion activities as well as protein-repelling activity, increasing radio-opacity, and replacing Bis-GMA. The influences of these novel monomers on the properties of DRCs were also discussed.
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Affiliation(s)
- Jingwei He
- College of Materials Science and Engineering, South China University of Technology, Guangzhou, China
- Department of Biomaterials Science and Turku Clinical Biomaterials Center-TCBC, Institute of Dentistry, University of Turku, Turku, Finland
- CONTACT Jingwei He College of Materials Science and Engineering, South China University of Technology, Guangzhou, China
| | - Lippo Lassila
- Department of Biomaterials Science and Turku Clinical Biomaterials Center-TCBC, Institute of Dentistry, University of Turku, Turku, Finland
| | - Sufyan Garoushi
- Department of Biomaterials Science and Turku Clinical Biomaterials Center-TCBC, Institute of Dentistry, University of Turku, Turku, Finland
| | - Pekka Vallittu
- Department of Biomaterials Science and Turku Clinical Biomaterials Center-TCBC, Institute of Dentistry, University of Turku, Turku, Finland
- Wellbeing Services County of South-West Finland, Turku, Finland
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Lopes-Rocha L, Hernandez C, Gonçalves V, Pinho T, Tiritan ME. Analytical Methods for Determination of BPA Released from Dental Resin Composites and Related Materials: A Systematic Review. Crit Rev Anal Chem 2022; 54:653-668. [PMID: 35776702 DOI: 10.1080/10408347.2022.2093097] [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: 10/17/2022]
Abstract
Knowing the impacts of bisphenol A (BPA) on human health, this systematic review aimed to gather the analytical methods for the quantification of BPA release of BPA in dental materials in in vitro and in vivo (biological fluids) studies. A brief critical discussion of the impacts of BPA on human health and the possible association with BPA in dental materials was also presented. The research was carried out by three independent researchers, (according to PRISMA guidelines) in PUBMED and SCOPUS databases, by searching for specific keywords and articles published between January 2011 and February 2022. Seventeen articles met the eligibility criteria and were included in this systematic review: 10 in vitro and 7 in vivo. In in vitro studies, the highest amounts of BPA released were from flowable to conventional resins, followed by resin-modified glass ionomer. In contrast, the smallest amount was released from "BPA-free" composites and CAD-CAM blocks. Regarding in vivo studies, a higher concentration of BPA were found in saliva than urine or blood. The best analytical method for trace quantifying BPA is LC-MS/MS (Liquid Chromatography with Tandem Mass Spectrometry) due to its selectivity, low quantification limits, and the unequivocal identification. However, further studies are required to develop faster and more sensitive methods, in order to obtain more reliable results.
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Affiliation(s)
- Lígia Lopes-Rocha
- UNIPRO-Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), CESPU, Gandra, Portugal
| | - Clara Hernandez
- UNIPRO-Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), CESPU, Gandra, Portugal
| | - Virgínia Gonçalves
- UNIPRO-Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), CESPU, Gandra, Portugal
- TOXRUN-Toxicology Research Unit, University Institute of Health Sciences (IUCS), CESPU, Gandra, Portugal
| | - Teresa Pinho
- UNIPRO-Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), CESPU, Gandra, Portugal
- IBMC-Institute of Molecular and Cellular Biology, i3S-Institute of Innovation and Research in Health, Oporto University, Porto, Portugal
| | - Maria Elizabeth Tiritan
- TOXRUN-Toxicology Research Unit, University Institute of Health Sciences (IUCS), CESPU, Gandra, Portugal
- Faculty of Pharmacy, University of Porto (FFUP), Portugal. Interdisciplinary Center of Marine and Environmental Research (CIIMAR), University of Porto, Edifício do Terminal de Cruzeiros do Porto de Leixões, Matosinhos, Portugal
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia da, Universidade do Porto, Porto, Portugal
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Yadav R, Meena A, Patnaik A. Biomaterials for dental composite applications: A comprehensive review of physical, chemical, mechanical, thermal, tribological, and biological properties. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5648] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ramkumar Yadav
- Department of Mechanical Engineering Malaviya National Institute of Technology Jaipur Rajasthan India
| | - Anoj Meena
- Department of Mechanical Engineering Malaviya National Institute of Technology Jaipur Rajasthan India
| | - Amar Patnaik
- Department of Mechanical Engineering Malaviya National Institute of Technology Jaipur Rajasthan India
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Sun Y, Zhou Z, Jiang H, Duan Y, Li J, Liu X, Hong L, Zhao C. Preparation and evaluation of novel bio-based Bis-GMA-free dental composites with low estrogenic activity. Dent Mater 2021; 38:281-293. [PMID: 34955233 DOI: 10.1016/j.dental.2021.12.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 11/07/2021] [Accepted: 12/08/2021] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Although bisphenol Aglycidyl methacrylate (Bis-GMA) are widely used in the dental composite, its raw materials include the petroleum-based product bisphenol A (BPA) with high estrogenic activity (EA). In this study, two new BPA-free dimethacrylate monomers from bio-based material creosol were synthesized and evaluated. METHODS The renewable bisphenol monomer 5, 5'-methylenedicreosol (BCF) was prepared from bio-based material creosol. By the human breast cancer cells (MCF-7 cells) proliferation assay, a risk assessment of BCF was performed to determine if BCF possessed reduced EA in comparison to BPA. Then, the novel monomers 5, 5'-methylenedicreosol diglycidyl ether diacrylate (BCF-EA) and 5, 5'-methylenedicreosol diglycidyl ether dimethacrylate (BCF-GMA) were synthesized from BCF with epichlorohydrin and (meth)acrylate. All products were investigated by 1H NMR and FT-IR spectra. The control resin was a mixture based on Bis-GMA and tri(ethyleneglycol) dimethacrylate (TEGDMA) with a weight ratio of 5:5 (5B5T). Similarly, experimental resin matrix was a mixture based on BCF-EA/TEGDMA (5E5T) and BCF-GMA/TEGDMA (5G5T). And their corresponding composites were then prepared with corresponding resin matrices and hybrid SiO2 (5E5TC, 5G5TC and 5B5TC). The properties of these composites were investigated according to the standard or referenced methods. Each sample was evaluated for double bond conversion (DC), shrinkage stress (SS) and volumetric polymerization shrinkage (VS). Water sorption (WS), water solubility (SL), mechanical properties and cytotoxicity were also measured. RESULTS 1H NMR and FT-IR spectra confirmed the chemical structure of each monomer. EA test revealed that bio-based bisphenol monomer BCF as the precursor of BCF-EA and BCF-GMA showed lower EA than BPA. Cured resin matrix: Both 5E5T and 5G5T had nearly the same DC (p < 0.05), which was higher than 5B5T (p < 0.05); 5E5T and 5G5T had lower VS, SL and cytotoxicity than 5B5T (p < 0.05); mechanical properties of 5E5T and 5G5T were all better than those of 5B5T (p < 0.05). Cured composite: There was no significant difference in conversion (p < 0.05); 5E5TC and 5G5TC had significantly lower VS (p < 0.05); WS of 5E5TC and 5G5TC were similar (p < 0.05), but higher compared to 5B5TC (p < 0.05); 5E5TC and 5G5TC had the deeper depth of cure (p > 0.05); before water immersion, there was no significant difference in flexural strength between 5E5TC and 5G5TC (p > 0.05), and higher than 5B5TC (p < 0.05); 5E5TC and 5G5TC showed less cytotoxicity than 5B5TC (p < 0.05). SIGNIFICANCE The new BPA-free di(meth)acrylates are promising photocurable dental monomers owning to bio-based raw material, high degree of conversion coupled with low curing shrinkage and good mechanical properties. Therefore, BCF-EA and BCF-GMA has a potential to be used as the substitution for Bis-GMA to prepare Bis-GMA-free dental composite.
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Affiliation(s)
- Yinan Sun
- College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Zeying Zhou
- Department of Prosthodontic Dentistry, Hospital of Stomatology, Jilin University, Changchun 130012, PR China
| | - Hao Jiang
- College of Materials Science and Engineering, Jilin University, Changchun 130022, PR China
| | - Yuting Duan
- College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Jialin Li
- College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Xiaoqiu Liu
- Department of Prosthodontic Dentistry, Hospital of Stomatology, Jilin University, Changchun 130012, PR China
| | - Lihua Hong
- Endodontics Department of Stomatological Hospital, Jilin University, Changchun 130021, PR China.
| | - Chengji Zhao
- College of Chemistry, Jilin University, Changchun 130012, PR China.
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Hatipoğlu Ö, Turumtay EA, Saygın AG, Hatipoğlu FP. Evaluation of Color Stability of Experimental Dental Composite Resins Prepared from Bis-EFMA, A Novel Monomer System. J PHOTOPOLYM SCI TEC 2021. [DOI: 10.2494/photopolymer.34.297] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ömer Hatipoğlu
- Department of Restorative Dentistry, Niğde Ömer Halisdemir University
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Yang Y, Xu Z, Guo Y, Zhang H, Qiu Y, Li J, Ma D, Li Z, Zhen P, Liu B, Fan Z. Novel core-shell CHX/ACP nanoparticles effectively improve the mechanical, antibacterial and remineralized properties of the dental resin composite. Dent Mater 2021; 37:636-647. [PMID: 33579529 DOI: 10.1016/j.dental.2021.01.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 01/10/2021] [Accepted: 01/18/2021] [Indexed: 10/22/2022]
Abstract
OBJECTIVE The core-shell chlorhexidine/amorphous calcium phosphate (CHX/ACP) nanoparticles were synthesized and used to modify the dental resin composite, aiming to improve its remineralized and antibacterial properties. METHODS The core-shell CHX/ACP nanoparticles were synthesized by vesicle-templating technology and characterized, and their sustained release and antibacterial properties were also evaluated. Subsequently, the synthesized nanoparticles were incorporated into the dental resin composite at 1 wt.%, 5 wt.% or 10 wt.% to obtain different experimental groups. The physical properties, including curing depth, double bond conversion rate, water absorption and solubility, the sustained-release effects, and mechanical properties of the modified resin composite were evaluated. The remineralization ability was also measured by SEM. The antibacterial experiment of the modified resin composite with fresh preparation or aging in water for 28 days was carried out by a plate count method. RESULTS The physical and chemical characterizations showed that the synthesized nanoparticles presented a core-shell structure, and their diameter was about 98.5 nm. The shell was composed of ACP with the core full of CHX. These nanoparticles had a release effect on calcium, phosphate ions, and CHX. The nanoparticles could effectively inhibit the growth of S. mutan at a lower concentration (≥50 μg/mL). The curing depth, the double bond conversion, the water absorption, the solubility, the flexural strength, the flexural modulus, and the compressive strength of the modified resin composite were 3.86-4.88 mm, 62.32-73.61%, 1.47-2.84%, 0.21-0.48%, 45.83-109.46 MPa, 2.57-4.91 GPa, and 66.43-160.38 MPa, respectively. The modified resin composite containing 5 wt.% and above CHX/ACP nanoparticles could effectively inhibit the growth of S. mutans regardless of aging in water, with immediate and aging antibacterial rate of more than 92%. In addition, the modified resin composite had a certain remineralization property in the SBF solution verified by SEM. SIGNIFICANCE The core-shell CHX/ACP nanoparticles were successfully prepared and used to modify the resin composite. The modified dental resin composite with 5 wt.% CHX/ACP nanoparticles had excellent mechanical, antibacterial, and remineralization properties. It is expected to be an ideal restorative filling material for clinical application.
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Affiliation(s)
- Yanwei Yang
- Department of Stomatology, The 940th Hospital of Joint Logistic Support Force of the Chinese People's Liberation Army, Lanzhou, 730050, PR China
| | - Zexian Xu
- School of Stomatology, Lanzhou University, Lanzhou, 730000, PR China
| | - Yuqing Guo
- School of Stomatology, Lanzhou University, Lanzhou, 730000, PR China
| | - Hongchen Zhang
- School of Nursing, Lanzhou University, Lanzhou, 730000, PR China
| | - Yinong Qiu
- Department of Stomatology, The 940th Hospital of Joint Logistic Support Force of the Chinese People's Liberation Army, Lanzhou, 730050, PR China
| | - Jianxue Li
- Department of Stomatology, The 940th Hospital of Joint Logistic Support Force of the Chinese People's Liberation Army, Lanzhou, 730050, PR China
| | - Dongyang Ma
- Department of Stomatology, The 940th Hospital of Joint Logistic Support Force of the Chinese People's Liberation Army, Lanzhou, 730050, PR China
| | - Zhiqiang Li
- Key Lab of Stomatology of State Ethnic Affairs Commission, Key Lab of Oral Diseases of Gansu Province, School of Stomatology, Northwest Minzu University, Lanzhou, 730030, PR China
| | - Ping Zhen
- Orthopedic Center, The 940th Hospital of Joint Logistic Support Force of the Chinese People's Liberation Army, Lanzhou 730050, PR China.
| | - Bin Liu
- School of Stomatology, Lanzhou University, Lanzhou, 730000, PR China.
| | - Zengjie Fan
- School of Stomatology, Lanzhou University, Lanzhou, 730000, PR China.
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Yang J, Liao M, Hong G, Dai S, Shen J, Xie H, Chen C. Effect of APTES- or MPTS-Conditioned Nanozirconia Fillers on Mechanical Properties of Bis-GMA-Based Resin Composites. ACS OMEGA 2020; 5:32540-32550. [PMID: 33376891 PMCID: PMC7758951 DOI: 10.1021/acsomega.0c04762] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 11/25/2020] [Indexed: 06/12/2023]
Abstract
To investigate the effects of 3-aminopropyltriethoxysilane (APTES)- or (3-mercaptopropyl)trimethoxysilane (MPTS)-conditioned nanozirconia fillers on the mechanical properties of Bis-GMA-based resin composites. The conditioned fillers were characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and thermodynamic calculations. They were then used to prepare Bis-GMA-based resin composites, whose flexural strength and elastic modulus were evaluated. The Cell Counting Kit-8 (CCK-8) assessed the composites' cytotoxicity. The FTIR spectra of the conditioned fillers showed new absorption bands at 1569 and 1100 cm-1, indicating successful grafting of APTES or MPTS onto nanozirconia. XPS confirmed the Zr-O-Si bonds in the APTES- or MPTS-conditioned fillers at contents of 2.02 and 6.98%, respectively. Thermodynamic calculations reaffirmed the chemical binding between the two silanes and nanozirconia fillers. Composites containing the conditioned nanozirconia fillers had significantly greater flexural strengths (APTES, 121.02 ± 8.31 MPa; MPTS, 132.80 ± 15.80 MPa; control, 94.84 ± 9.28 MPa) and elastic moduli (8.76 ± 0.52, 9.24 ± 0.60, and 7.44 ± 0.83 GPa, respectively) than a control with untreated fillers. The cytotoxicity assay identified no significant cytotoxicity by composites containing the conditioned fillers. Silanes were previously considered to be unable to chemically condition zirconia to bond with resin. Inclusion of APTES- or MPTS-conditioned nanozirconia fillers can improve the mechanical properties of Bis-GMA-based resin composites without obvious cytotoxicity in this study.
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Affiliation(s)
- Jiaxue Yang
- Jiangsu
Key Laboratory of Oral Diseases, Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - Mengyuan Liao
- Jiangsu
Key Laboratory of Oral Diseases, Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - Gaoying Hong
- Jiangsu
Key Laboratory of Oral Diseases, Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - Shiqi Dai
- Jiangsu
Key Laboratory of Oral Diseases, Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - Jiadi Shen
- Jiangsu
Key Laboratory of Oral Diseases, Department of Endodontics, Affiliated
Hospital of Stomatology, Nanjing Medical
University, Nanjing 210029, China
| | - Haifeng Xie
- Jiangsu
Key Laboratory of Oral Diseases, Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - Chen Chen
- Jiangsu
Key Laboratory of Oral Diseases, Department of Endodontics, Affiliated
Hospital of Stomatology, Nanjing Medical
University, Nanjing 210029, China
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Wang T, Matinlinna JP, He J, Ahmed KE, Burrow MF. Biomechanical and biological evaluations of novel BPA-free fibre-reinforced composites for biomedical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 117:111309. [PMID: 32919670 DOI: 10.1016/j.msec.2020.111309] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 07/10/2020] [Accepted: 07/19/2020] [Indexed: 11/16/2022]
Abstract
This aim was to assess the biomechanical and biocompatibility properties of novel glass fibre-reinforced composites (FRCs) with a fluorinated urethane dimethacrylate (FUDMA) resin. Three ratios of FUDMA/TEGDMA (30/70 wt%, 50/50 wt%, 70/30 wt%) and two ratios of control FRCs with bis-GMA/TEGDMA (50/50 wt% and 70/30 wt%) containing long silanized E-glass fibres were prepared. Despite 70 wt% bis-GMA-FRC showed a significantly higher flexural strength (p < 0.05), 50 wt% FUDMA- and bis-GMA-FRCs were not differ from each other. The greatest surface hardness and weight increase after water storage were found in 70 wt% and 30 wt% FUDMA-FRCs, respectively. No significant difference was found in water sorption and solubility among all groups. Average surface roughness was 1.80 ± 0.05 μm, while 70 wt% FUDMA-FRC exhibited the greatest contact angle (p > 0.05). Viabilities and ALP activities of MC3TC-E1 cells in all FUDMA-FRCs were higher than bis-GMA-FRCs after 5 days. To conclude, the novel FUDMA-FRCs are potential substitutes that exhibited superior cytocompatibility properties but comparable biomechanical properties to bis-GMA-FRCs.
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Affiliation(s)
- Ting Wang
- Prosthodontics, Division of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong, SAR, China; Dental Materials Science, Division of Applied Oral Sciences and Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong, SAR, China.
| | - Jukka P Matinlinna
- Dental Materials Science, Division of Applied Oral Sciences and Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong, SAR, China.
| | - Jingwei He
- College of Materials Science and Engineering, Department of Polymer Materials Science and Engineering, South China University of Technology, China.
| | - Khaled E Ahmed
- Prosthodontics Discipline, School of Dentistry and Oral Health, Griffith University, Gold Coast, Australia.
| | - Michael F Burrow
- Prosthodontics, Division of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong, SAR, China.
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11
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Aminoroaya A, Esmaeely Neisiany R, Nouri Khorasani S, Panahi P, Das O, Ramakrishna S. A Review of Dental Composites: Methods of Characterizations. ACS Biomater Sci Eng 2020; 6:3713-3744. [DOI: 10.1021/acsbiomaterials.0c00051] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alireza Aminoroaya
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Rasoul Esmaeely Neisiany
- Department of Materials and Polymer Engineering, Faculty of Engineering, Hakim Sabzevari University, Sabzevar 9617976487, Iran
| | - Saied Nouri Khorasani
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Parisa Panahi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Oisik Das
- Material Science Division, Department of Engineering Sciences and Mathematics, Luleå University of Technology, Luleå 97187, Sweden
| | - Seeram Ramakrishna
- Centre for Nanofibers and Nanotechnology, Department of Mechanical Engineering, National University of Singapore, Singapore 117575, Singapore
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Luo S, Liu F, Yu B, He J. Preparation of low shrinkage stress Bis-GMA free dental resin composites with a synthesized urethane dimethacrylate monomer. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 30:137-149. [PMID: 30518312 DOI: 10.1080/09205063.2018.1556853] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A new urethane dimethacrylate TMA was synthesized through a typical urethane reaction. TMA was used to replace 1,6-bis(methacryloxy-2-ethoxycarbonyl- amino)-2,4,4- trimethylhexane (UDMA) in UDMA based composite partially or totally to prepare TMA containing composites. Critical properties of TMA containing composites were investigated. 2,2-bis[4(2-hydroxy-3-methacryloy- propyloy)phenyl]propane (Bis-GMA) based and UDMA based composites were used as references. FT-IR and 1H-NMR confirmed the structure of TMA. All of experimental dental resin composites had the similar double bond conversion (p > 0.05). With a certain amount of TMA, TMA containing composites could have lower volumetric shrinkage (p < 0.05) and shrinkage stress (p < 0.05) than control groups. Water sorption, solubility, flexural strength and modulus of TMA containing composites were not worse than those of control groups. All of TMA containing composites and UDMA based composite had the same fracture toughness (p > 0.05), which was higher than that of Bis-GMA based composite (p < 0.05). TMA has potential as Bis-GMA substitute to prepare Bis-GMA free dental resin composites with low shrinkage stress.
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Affiliation(s)
- Shuzhen Luo
- a College of Materials Science and Engineering, South China University of Technology , Guangzhou , China
| | - Fang Liu
- a College of Materials Science and Engineering, South China University of Technology , Guangzhou , China
| | - Biao Yu
- b Institution for Advanced Materials, Lingnan Normal University , Zhanjiang , China
| | - Jingwei He
- a College of Materials Science and Engineering, South China University of Technology , Guangzhou , China
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13
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Preparation and characterization of Bis-GMA-free dental composites with dimethacrylate monomer derived from 9,9-Bis[4-(2-hydroxyethoxy)phenyl]fluorene. Dent Mater 2018; 34:1003-1013. [DOI: 10.1016/j.dental.2018.03.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Revised: 03/16/2018] [Accepted: 03/23/2018] [Indexed: 01/22/2023]
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14
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Yang YW, Yu F, Zhang HC, Dong Y, Qiu YN, Jiao Y, Xing XD, Tian M, Huang L, Chen JH. Physicochemical properties and cytotoxicity of an experimental resin-based pulp capping material containing the quaternary ammonium salt and Portland cement. Int Endod J 2017; 51:26-40. [PMID: 28375561 DOI: 10.1111/iej.12777] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 03/29/2017] [Indexed: 11/26/2022]
Abstract
AIM To evaluate in vitro the physicochemical properties, cytotoxicity and calcium phosphate nucleation of an experimental light-curable pulp capping material composed of a resin with antibacterial monomer (MAE-DB) and Portland cement (PC). METHODOLOGY The experimental material was prepared by mixing PC with a resin containing MAE-DB at a 2 : 1 ratio. Cured pure resin containing MAE-DB served as control resin. ProRoot MTA and Dycal served as commercial controls. The depth of cure, degree of monomer conversion, water absorption and solubility of dry samples, calcium release, alkalinizing activity, calcium phosphate nucleation and the cytotoxicity of materials were evaluated. Statistical analysis was carried out using anova followed by Tukey's HSD test (equal variance assumed) or Tamhane test (equal variance not assumed) and independent-samples t-tests. RESULTS The experimental material had a cure depth of 1.19 mm, and the mean degree of monomer conversion was 70.93% immediately post-cure and 88.75% at 24 h post-cure. The water absorption of the experimental material was between those of MTA and Dycal, and its solubility was significantly less (P < 0.05) than that of Dycal and higher than that of MTA. The experimental material exhibited continuous calcium release and an alkalinizing power between those of MTA and Dycal throughout the test period. Freshly set experimental material, control resin and all 24-h set materials had acceptable cytotoxicity. The experimental material, MTA and Dycal all exhibited the formation of apatite precipitates after immersion in phosphate-buffered saline. CONCLUSIONS The experimental material possessed adequate physicochemical properties, low cytotoxicity and good calcium phosphate nucleation.
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Affiliation(s)
- Y W Yang
- Department of Stomatology, Lanzhou General Hospital, Lanzhou Military Area Command of Chinese PLA, Lanzhou, Gansu, China.,State Key Laboratory of Military Stomatology & National Clinical Research Centre for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - F Yu
- State Key Laboratory of Military Stomatology & National Clinical Research Centre for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - H C Zhang
- Department of Clinical Nursing, School of Nursing, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Y Dong
- State Key Laboratory of Military Stomatology & National Clinical Research Centre for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Y N Qiu
- Department of Stomatology, Lanzhou General Hospital, Lanzhou Military Area Command of Chinese PLA, Lanzhou, Gansu, China
| | - Y Jiao
- Department of Stomatology, PLA Army General Hospital, Beijing, China
| | - X D Xing
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, China
| | - M Tian
- State Key Laboratory of Military Stomatology & National Clinical Research Centre for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - L Huang
- State Key Laboratory of Military Stomatology & National Clinical Research Centre for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Department of General Dentistry and Emergency, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - J H Chen
- State Key Laboratory of Military Stomatology & National Clinical Research Centre for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
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15
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Preparation of a Bis-GMA-Free Dental Resin System with Synthesized Fluorinated Dimethacrylate Monomers. Int J Mol Sci 2016; 17:ijms17122014. [PMID: 27916947 PMCID: PMC5187814 DOI: 10.3390/ijms17122014] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 11/21/2016] [Accepted: 11/22/2016] [Indexed: 11/17/2022] Open
Abstract
With the aim of reducing human exposure to Bisphenol A (BPA) derivatives in dentistry, a fluorinated dimethacrylate monomer was synthesized to replace 2,2-bis[4-(2-hydroxy-3-methacryloy-loxypropyl)-phenyl]propane (Bis-GMA) as the base monomer of dental resin. After mixing with reactive diluent triethyleneglycol dimethacrylate (TEGDMA), fluorinated dimethacrylate (FDMA)/TEGDMA was prepared and compared with Bis-GMA/TEGDMA in physicochemical properties, such as double bond conversion (DC), volumetric shrinkage (VS), water sorption (WS) and solubility (WSL), flexural strength (FS) and modulus (FM). The results showed that, when compared with Bis-GMA based resin, FDMA-based resin had several advantages, such as higher DC, lower VS, lower WS, and higher FS after water immersion. All of these revealed that FDMA had potential to be used as a substitute for Bis-GMA. Of course, many more studies, such as biocompatibility testing, should be undertaken to prove whether FDMA could be applied in clinic.
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16
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DING YUFEI, LI BAOJUN, WANG MINGHUI, LIU FANG, HE JINGWEI. Bis-GMA Free Dental Materials Based on UDMA/SR833s Dental Resin System. ADVANCES IN POLYMER TECHNOLOGY 2016. [DOI: 10.1002/adv.21564] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- YUFEI DING
- College of Materials Science and Engineering; South China University of Technology; Guangzhou 510641 People's Republic of China
| | - BAOJUN LI
- College of Materials Science and Engineering; South China University of Technology; Guangzhou 510641 People's Republic of China
- School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - MINGHUI WANG
- College of Materials Science and Engineering; South China University of Technology; Guangzhou 510641 People's Republic of China
- School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - FANG LIU
- College of Materials Science and Engineering; South China University of Technology; Guangzhou 510641 People's Republic of China
| | - JINGWEI HE
- College of Materials Science and Engineering; South China University of Technology; Guangzhou 510641 People's Republic of China
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17
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Lima MA, Bastos IN, Cella N. Quartz crystal microbalance and photoacoustic measurements in dental photocuring. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2016; 87:093903. [PMID: 27782581 DOI: 10.1063/1.4963309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Photocured dental resins are used extensively in restorative procedures in dentistry. Inadequate curing reduces the lifetime of the dental restoration, and consequently it is essential to precisely measure the polymerisation kinetics. In this study, two techniques, Quartz Crystal Microbalance (QCM) and Photoacoustic Spectroscopy (PAS), were used to monitor the real-time cure and to obtain the optical absorption spectra of resins, respectively. From the PAS measurements, the precise peaks of absorption were identified, and were used as the appropriate wavelength of the photocuring light in the QCM monitoring. The combined use of these techniques allows reliable determination of the duration of the phases of physical and chemical changes that occur during photocuring. Two commercial dental resins were tested, and the results confirmed the advantages of using PAS and QCM to study polymerisation kinetics.
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Affiliation(s)
- Marcenilda A Lima
- Instituto Politécnico, IPRJ, Universidade do Estado do Rio de Janeiro, UERJ, P.O. Box 97282, 28.625-570 Nova Friburgo, Rio de Janeiro, Brazil
| | - Ivan N Bastos
- Instituto Politécnico, IPRJ, Universidade do Estado do Rio de Janeiro, UERJ, P.O. Box 97282, 28.625-570 Nova Friburgo, Rio de Janeiro, Brazil
| | - Norberto Cella
- Instituto Politécnico, IPRJ, Universidade do Estado do Rio de Janeiro, UERJ, P.O. Box 97282, 28.625-570 Nova Friburgo, Rio de Janeiro, Brazil
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Gianordoli-Neto R, Padovani GC, Mondelli J, de Lima Navarro MF, Mendonça JS, Santiago SL. Two-year clinical evaluation of resin composite in posterior teeth: A randomized controlled study. J Conserv Dent 2016; 19:306-10. [PMID: 27563176 PMCID: PMC4979274 DOI: 10.4103/0972-0707.186446] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Clinical evaluations as fundamental method to prove the efficiency of restorative materials. AIM This study evaluated the clinical performance of restorative systems during 2 years of clinical service. MATERIALS AND METHODS This study assessed the clinical performance of restorative systems (Filtek Z250 and P60), during 2 years of clinical service, using the US Public Health Service system. The randomized and double-blind study comprising thirty volunteers. The restorations were evaluated at baseline, 6, 12, and 24 months. It was used the following criteria: marginal discoloration (MD), marginal integrity (MI), superficial texture (ST), wear (W), postoperative sensitivity (PS) and recurrent caries (RC). RESULTS Statistic analysis was performed using Fisher's and McNemar's exact tests and Pearsons's Chi-square in a significance level of 5%. The results at baseline and 24 months for Group I were: MD - 100, 100%; MI - 100, 88.6%; ST - 100, 94.3%; W - 100, 94.3%; PS - 100, 100%; RC - 100, 100%, of alpha scores; Group II: MD - 100, 97.1%; MI - 100, 91.4%; ST - 100, 94.3%; W - 100, 91.4%; PS - 100, 100%; RC - 100, 100%, of alpha scores. It was observed no statistical difference in the evaluated criteria and period. CONCLUSIONS After 24 months of evaluation, both restorative systems exhibited acceptable clinical performance.
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Affiliation(s)
- Ranulfo Gianordoli-Neto
- Department of Prosthetic Dentistry, Federal University of Espírito Santo, Vitória, ES, Brazil
| | | | - José Mondelli
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Maria Fidela de Lima Navarro
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | | | - Sérgio Lima Santiago
- Department of Operative Dentistry, Federal University of Ceará, Fortaleza, CE, Brazil
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Jaymand M, Lotfi M, Lotfi R. Functional dendritic compounds: potential prospective candidates for dental restorative materials and in situ re-mineralization of human tooth enamel. RSC Adv 2016. [DOI: 10.1039/c6ra05722e] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This review provides a snapshot of recent progress in the synthesis and application of dendritic compounds as potential prospective candidates for dental restorative materials andin siture-mineralization of human tooth enamel.
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Affiliation(s)
- Mehdi Jaymand
- Research Center for Pharmaceutical Nanotechnology
- Tabriz University of Medical Sciences
- Tabriz
- Iran
| | - Meherdad Lotfi
- Research Center for Pharmaceutical Nanotechnology
- Tabriz University of Medical Sciences
- Tabriz
- Iran
- Department of Endodontics
| | - Rana Lotfi
- Faculty of Health
- York University
- Toronto
- Canada
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20
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Yin M, Liu F, He J. Preparation and characterization of Bis-GMA free dental resin system with synthesized dimethacrylate monomer TDDMMA derived from tricyclo[5.2.1.0(2,6)]-decanedimethanol. J Mech Behav Biomed Mater 2015; 57:157-63. [PMID: 26717250 DOI: 10.1016/j.jmbbm.2015.11.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 11/22/2015] [Accepted: 11/25/2015] [Indexed: 10/22/2022]
Abstract
As a substitute for 2,2-bis[4-(2-hydroxy-3- methacryloxypropoxy)phenyl] propane (Bis-GMA) in dental materials, a new dimethacrylate monomer TDDMMA without bisphenol-A structure was synthesized through the reaction between tricyclo[5.2.1.0(2,6)]- decanedimethanol and 2-isocyanatoethyl methacrylate. The TDDMMA was mixed with triethylene glycol dimethacrylate (TEGDMA) to prepare Bis-GMA free dental resin. Physicochemical properties, such as double bond conversion (DC), polymerization shrinkage (VS), water sorption (WS) and solubility (SL), flexural strength (FS) and modulus (FM) and fracture energy of TDDMMA/TEGDMA resin system were investigated. Bis-GMA/TEGDMA resin system was used as a control. The results showed that, compared with Bis-GMA/TEGDMA resin system, TDDMMA/TEGDMA resin system had comparable VS and several advantages like higher DC, lower SL and better mechanical properties after water immersion.
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Affiliation(s)
- Mei Yin
- College of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Fang Liu
- College of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Jingwei He
- College of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China.
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21
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Vaidyanathan TK, Vaidyanathan J. Visible light cure characteristics of a cycloaliphatic polyester dimethacrylate alternative oligomer to bisGMA. ACTA BIOMATERIALIA ODONTOLOGICA SCANDINAVICA 2015. [PMID: 28642902 PMCID: PMC5433180 DOI: 10.3109/23337931.2015.1085806] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Objective: The goal of this study was to characterize the light curing characteristics of a new oligomer PEM-665 designed to be used as an alternative monomer to BisGMA. Materials and methods: PEM-665 (P) and BisGMA (B) solutions were prepared with triethylene glycol dimethacrylate (T) diluent in different weight proportions (70/30 and 50/50). Solutions containing 70% P and 30% T were designated as 70PT, 70%B and 30%T as 70BT, 50%P and 50%T as 50PT and 50%B and 50%T as 50BT. The initiators were CQ (EDMAB was used as amine accelerator for CQ) and DPO in 1% concentration. Eight solutions were prepared in a factorial design: 70PT/DPO; 70PT/CQ; 50PT/DPO; 50PT/CQ; 70BT/DPO; 70BT/CQ; 50BT/DPO; 50BT/CQ. BISCO VIP visible light was used to cure the monomer solutions using 30 s exposure time and 400 W power setting. TA Instruments Differential Scanning Calorimeter (DSC 2910) was used to determine the heat of cure (J/g) during polymerization at 37 °C, from which molar heat of cure (kJ/mole) and %Conversion values were estimated. Results: Range of mean values as a function monomer selections were: heat of cure (J/g): 161.7 for 70PT/DPO system to 198.6 for 50BT/CQ system; molar heat of cure (kJ/mole): 67.3 for 70BT/DPO to 78.86 for 50PT/CQ; % conversion: 59.9 for 70BT/DPO to 70.3 for 50PT/CQ. Analysis of variance and Tukey HSD pairwise contrast showed statistically significant differences between % conversion means of PEM and BisGMA mixtures, with PEM mixtures showing significantly higher mean values. Conclusions: The results suggest that PEM-665 is a promising candidate material for dental polymer applications.
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Yin M, Guo S, Liu F, He J. Synthesis of fluorinated dimethacrylate monomer and its application in preparing Bis-GMA free dental resin. J Mech Behav Biomed Mater 2015; 51:337-44. [PMID: 26282076 DOI: 10.1016/j.jmbbm.2015.07.025] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2015] [Revised: 07/19/2015] [Accepted: 07/23/2015] [Indexed: 11/18/2022]
Abstract
With the aim to reduce human exposure to Bis-phenol A derivatives, a novel fluorinated dimethacrylate monomer FUDMA was synthesized and mixed with triethyleneglycol dimethacrylate (TEGDMA) to prepare 2,2-bis[4-(2-hydroxy-3-methacryloy- loxypropyl)phenyl]propane (Bis-GMA) free dental resin system. Physicochemical properties, such as double bond conversion (DC), polymerization shrinkage (VS), water sorption (WS) and solubility (SL), flexural strength (FS) and modulus (FM), and fracture energy of FUDMA/TEGDMA resin system were investigated. Bis-GMA/TEGDMA resin system was used as a control. The results showed that, compared with Bis-GMA/TEGDMA resin system, FUDMA/TEGDMA had advantages like higher DC, lower VS, and higher fracture energy, but had no disadvantages. Therefore, FUDMA/TEGDMA resin system had better comprehensive physicochemical properties than Bis-GMA/TEGDMA resin system, and FUDMA had potential to be used as a substitute for Bis-GMA.
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Affiliation(s)
- Mei Yin
- College of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510641, China
| | - Sen Guo
- College of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510641, China
| | - Fang Liu
- College of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510641, China
| | - Jingwei He
- College of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510641, China.
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Yu B, Liu F, He J, He Y, Lin Z. Preparation of Bis-GMA-Free Dental Restorative Composites with Dendritic Macromer (G-IEMA). ADVANCES IN POLYMER TECHNOLOGY 2015. [DOI: 10.1002/adv.21519] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Biao Yu
- College of Materials Science and Engineering; South China University of Technology; Guangzhou 510641 People's Republic of China
| | - Fang Liu
- College of Materials Science and Engineering; South China University of Technology; Guangzhou 510641 People's Republic of China
| | - Jingwei He
- College of Materials Science and Engineering; South China University of Technology; Guangzhou 510641 People's Republic of China
| | - Yingcong He
- Department of Conservative Dentistry and Endodontics; Guanghua School of Stomatology; Hospital of Stomatology; Sun Yat-Sen University; Guangzhou 510055 People's Republic of China
- Guangdong Provincial Key Laboratory of Stomatology; Guangzhou 510055 People's Republic of China
| | - Zhengmei Lin
- Department of Conservative Dentistry and Endodontics; Guanghua School of Stomatology; Hospital of Stomatology; Sun Yat-Sen University; Guangzhou 510055 People's Republic of China
- Guangdong Provincial Key Laboratory of Stomatology; Guangzhou 510055 People's Republic of China
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Yuan S, Liu F, He J. Preparation and Characterization of Low Polymerization Shrinkage and Bis-GMA-Free Dental Resin System. ADVANCES IN POLYMER TECHNOLOGY 2015. [DOI: 10.1002/adv.21503] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shuang Yuan
- College of Materials Science and Engineering; South China University of Technology; Guangzhou 510641 People's Republic of China
| | - Fang Liu
- College of Materials Science and Engineering; South China University of Technology; Guangzhou 510641 People's Republic of China
| | - Jingwei He
- College of Materials Science and Engineering; South China University of Technology; Guangzhou 510641 People's Republic of China
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