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Tang C, Mercelis B, Zhang F, Mocquot C, Nakanishi K, Yoshihara K, Peumans M, Van Meerbeek B. Filler Mixed Into Adhesives Does Not Necessarily Improve Their Mechanical Properties. Oper Dent 2024; 49:311-324. [PMID: 38632849 DOI: 10.2341/23-106-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/15/2023] [Indexed: 04/19/2024]
Abstract
OBJECTIVES To investigate the influence of filler type/loading on the micro-tensile fracture strength (μTFS) of adhesive resins, as measured 'immediately' upon preparation and after 1-week water storage ('water-stored'). METHODS The morphology and particle-size distribution of three filler particles, referred to as 'Glass-S' (Esschem Europe), 'BioUnion' (GC), and 'CPC_Mont', were correlatively characterized by SEM, TEM, and particle-size analysis. These filler particles were incorporated into an unfilled adhesive resin ('BZF-29unfilled', GC) in different concentrations to measure the 'immediate' μTFS. After 1-week water storage, the 'water-stored' μTFS of the experimental particle-filled adhesive resins with the most optimum filler loading, specific for each filler type, was measured. In addition, the immediate and water-stored μTFS of the adhesive resins of three experimental two-step universal adhesives based on the same resin matrix but varying for filler type/loading, coded as 'BZF-21' (containing silica and bioglass), 'BZF-29' (containing solely silica), and 'BZF-29_hv' (highly viscous with a higher silica loading than BZF-29), and of the adhesive resins of the gold-standard adhesives OptiBond FL ('Opti-FL', Kerr) and Clearfil SE Bond 2 ('C-SE2', Kuraray Noritake) was measured along with that of BZF-29unfilled (GC) serving as control/reference. Statistics involved one-way and two-way ANOVA followed by post-hoc multiple comparisons (α<0.05). RESULTS Glass-S, BioUnion, and CPC_Mont represent irregular fillers with an average particle size of 8.5-9.9 μm. Adding filler to BZF-29unfilled decreased μTFS regardless of filler type/loading. One-week water storage reduced μTFS of all adhesive resins except BZF-21, with the largest reduction in μTFS recorded for BZF-29unfilled. Among the three filler types, the μTFS of the 30 wt% Glass-S and 20 wt% BioUnion filled adhesive resin was not significantly different from the μTFS of BZF-29unfilled upon water storage. CONCLUSIONS Adding filler particles into adhesive resin did not enhance its micro-tensile fracture strength but appeared to render it less sensitive to water storage as compared to the unfilled adhesive resin investigated.
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Affiliation(s)
- C Tang
- Chuliang Tang, KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT, Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium
| | - B Mercelis
- Ben Mercelis, KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT, Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium
| | - F Zhang
- Fei Zhang, KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT, Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium; KU Leuven (University of Leuven), Department of Materials Engineering, Leuven, Belgium; 3Université Lyon 1, Laboratoire des Multimatériaux et Interfaces, Villeurbanne, France
| | - C Mocquot
- Caroline Mocquot, Université Lyon 1, Laboratoire des Multimatériaux et Interfaces, Villeurbanne, France; Université Paris Cité, Faculté dentaire, Hôpital Rothschild, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - K Nakanishi
- Ko Nakanishi, KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT, Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium; Hokkaido University, Faculty of Dental Medicine, Department of Biomaterials and Bioengineering, Sapporo, Japan
| | - K Yoshihara
- Kumiko Yoshihara, National Institute of Advanced Industrial Science and Technology (AIST), Health and Medical Research Institute, Kagawa, Japan; Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Department of Pathology & Experimental Medicine, Okayama, Japan
| | - M Peumans
- Marleen Peumans, KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT, Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium
| | - B Van Meerbeek
- *Bart Van Meerbeek, KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT, Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium
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Zhang S, Wang X, Yang J, Chen H, Jiang X. Micromechanical interlocking structure at the filler/resin interface for dental composites: a review. Int J Oral Sci 2023; 15:21. [PMID: 37258568 DOI: 10.1038/s41368-023-00226-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 04/18/2023] [Accepted: 04/19/2023] [Indexed: 06/02/2023] Open
Abstract
Dental resin composites (DRCs) are popular materials for repairing caries or dental defect, requiring excellent properties to cope with the complex oral environment. Filler/resin interface interaction has a significant impact on the physicochemical/biological properties and service life of DRCs. Various chemical and physical modification methods on filler/resin interface have been introduced and studied, and the physical micromechanical interlocking caused by the modification of fillers morphology and structure is a promising method. This paper firstly introduces the composition and development of DRCs, then reviews the chemical and physical modification methods of the filler/resin interface, mainly discusses the interface micromechanical interlocking structures and their enhancement mechanism for DRCs, finally give a summary on the existing problems and development potential.
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Affiliation(s)
- Shuning Zhang
- Department of Prosthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; Shanghai Engineering Research Center of Advanced Dental Technology and Materials; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology; Shanghai Research Institute of Stomatology, Shanghai, China
| | - Xiao Wang
- Department of Prosthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; Shanghai Engineering Research Center of Advanced Dental Technology and Materials; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology; Shanghai Research Institute of Stomatology, Shanghai, China
| | - Jiawei Yang
- Department of Prosthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; Shanghai Engineering Research Center of Advanced Dental Technology and Materials; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology; Shanghai Research Institute of Stomatology, Shanghai, China
| | - Hongyan Chen
- Department of Prosthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; Shanghai Engineering Research Center of Advanced Dental Technology and Materials; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology; Shanghai Research Institute of Stomatology, Shanghai, China.
| | - Xinquan Jiang
- Department of Prosthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; Shanghai Engineering Research Center of Advanced Dental Technology and Materials; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology; Shanghai Research Institute of Stomatology, Shanghai, China.
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López-Ruiz M, Navas F, Fernández-García P, Martínez-Erro S, Fuentes MV, Giráldez I, Ceballos L, Ferrer-Luque CM, Ruiz-Linares M, Morales V, Sanz R, García-Muñoz RA. L-arginine-containing mesoporous silica nanoparticles embedded in dental adhesive (Arg@MSN@DAdh) for targeting cariogenic bacteria. J Nanobiotechnology 2022; 20:502. [PMID: 36457046 PMCID: PMC9714087 DOI: 10.1186/s12951-022-01714-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 11/16/2022] [Indexed: 12/03/2022] Open
Abstract
Dental caries is the major biofilm-mediated oral disease in the world. The main treatment to restore caries lesions consists of the use of adhesive resin composites due to their good properties. However, the progressive degradation of the adhesive in the medium term makes possible the proliferation of cariogenic bacteria allowing secondary caries to emerge. In this study, a dental adhesive incorporating a drug delivery system based on L-arginine-containing mesoporous silica nanoparticles (MSNs) was used to release this essential amino acid as a source of basicity to neutralize the harmful acidic conditions that mediate the development of dental secondary caries. The in vitro and bacterial culture experiments proved that L-arginine was released in a sustained way from MSNs and diffused out from the dental adhesive, effectively contributing to the reduction of the bacterial strains Streptococcus mutans and Lactobacillus casei. Furthermore, the mechanical and bonding properties of the dental adhesive did not change significantly after the incorporation of L-arginine-containing MSNs. These results are yielding glimmers of promise for the cost-effective prevention of secondary caries.
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Affiliation(s)
- Marta López-Ruiz
- grid.28479.300000 0001 2206 5938Faculty of Health Sciences, IDIBO Research Group, Rey Juan Carlos University, Madrid, Spain
| | - Francisco Navas
- grid.28479.300000 0001 2206 5938Department of Chemical and Environmental Technology, Rey Juan Carlos University, C/ Tulipán S/N Móstoles, 28933 Madrid, Spain
| | - Paloma Fernández-García
- grid.28479.300000 0001 2206 5938Department of Chemical and Environmental Technology, Rey Juan Carlos University, C/ Tulipán S/N Móstoles, 28933 Madrid, Spain
| | - Samuel Martínez-Erro
- grid.28479.300000 0001 2206 5938Department of Chemical and Environmental Technology, Rey Juan Carlos University, C/ Tulipán S/N Móstoles, 28933 Madrid, Spain
| | - Mª Victoria Fuentes
- grid.28479.300000 0001 2206 5938Faculty of Health Sciences, IDIBO Research Group, Rey Juan Carlos University, Madrid, Spain
| | - Isabel Giráldez
- grid.28479.300000 0001 2206 5938Faculty of Health Sciences, IDIBO Research Group, Rey Juan Carlos University, Madrid, Spain
| | - Laura Ceballos
- grid.28479.300000 0001 2206 5938Faculty of Health Sciences, IDIBO Research Group, Rey Juan Carlos University, Madrid, Spain
| | - Carmen Mª Ferrer-Luque
- grid.4489.10000000121678994Department of Stomatology, School of Dentistry, University of Granada, Campus de Cartuja, Colegio Máximo S/N, 18071 Granada, Spain
| | - Matilde Ruiz-Linares
- grid.4489.10000000121678994Department of Stomatology, School of Dentistry, University of Granada, Campus de Cartuja, Colegio Máximo S/N, 18071 Granada, Spain
| | - Victoria Morales
- grid.28479.300000 0001 2206 5938Department of Chemical and Environmental Technology, Rey Juan Carlos University, C/ Tulipán S/N Móstoles, 28933 Madrid, Spain
| | - Raúl Sanz
- grid.28479.300000 0001 2206 5938Department of Chemical and Environmental Technology, Rey Juan Carlos University, C/ Tulipán S/N Móstoles, 28933 Madrid, Spain
| | - Rafael A. García-Muñoz
- grid.28479.300000 0001 2206 5938Department of Chemical and Environmental Technology, Rey Juan Carlos University, C/ Tulipán S/N Móstoles, 28933 Madrid, Spain
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Ritto FP, da Silva EM, Borges ALS, Borges MAP, Sampaio-Filho HR. Fabrication and characterization of low-shrinkage dental composites containing montmorillonite nanoclay. Odontology 2021; 110:35-43. [PMID: 34156565 DOI: 10.1007/s10266-021-00629-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 06/14/2021] [Indexed: 11/25/2022]
Abstract
Dental composites are aesthetic materials widely used in Dentistry for replacing hard dental tissues lost due to caries or traumas. The aim of this study was to fabricate low-shrinkage dental composite charged with nanoclay fillers (montmorillonite Cloisite®-MMT) and evaluate their cytotoxicity and physicomechanical properties. Four dental composites were produced from the same organic matrix: Bis-GMA/TEGDMA (30 wt.%). The filler system was constituted of BaSi, SiO2, and MMT in the following concentrations (wt.%): 93.8/6.2/0, 89.1/5.9/5, 86.7/5.8/7.5, and 84.4/5.6/10 (E0: 0; E5: 5%; E7.5: 7.5%; E10: 10% of MMT nanoclays). The following properties were tested: in vitro cytotoxicity, flexural strength, elastic modulus, volumetric shrinkage, water sorption, water solubility, and hygroscopic expansion. Scanning electron microscopy was used to characterize composites' topography. Data were analyzed by one-way ANOVA and Tukey's HSD post hoc test (p < 0.05). MMT nanoclays did not affect the cytotoxicity. E5 and E7.5 groups showed a significant decrease in polymerization shrinkage while maintained the overall physicomechanical properties. The inclusion of 5 and 7.5 wt.% of MMT nanoclays allowed the fabrication of dental composites with low cytotoxicity and low polymerization shrinkage, without jeopardizing the overall behaviour of their physicomechanical properties (flexural strength, elastic modulus, water sorption, water solubility, and hygroscopic expansion). These aspects suggest that the usage of MMT nanoclays could be an effective strategy to formulate new dental composites with clinical applicability.
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Affiliation(s)
- Fernanda Pitta Ritto
- Department of Operative Dentistry, College of Dentistry, Oklahoma University, Oklahoma, USA
| | - Eduardo Moreira da Silva
- Analytical Laboratory of Restorative Biomaterials-LABiom-R, Faculdade de Odontologia, Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil
| | - Alexandre Luiz Souto Borges
- Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University-UNESP, São Jose Dos Campos, SP, Brazil
| | - Márcio Antônio Paraizo Borges
- Department of Operative Dentistry, IOPUC, Rua Marquês de São Vicente, 389-Gávea, Rio de Janeiro, RJ, 22451-047, Brazil.
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Almutairi B, Kattan HF, BinMahfooz AM, Qutub OA, Basunbul G, ArRejaie AS, Farooq I, Vohra F, Abduljabbar T. Synergistic effect of graphene oxide/calcium phosphate nanofiller in a dentin adhesive on its dentin bond integrity and degree of conversion. A scanning electron microscopy, energy dispersive X-ray spectroscopy, Fourier transform infrared, micro-Raman, and bond strength study. Microsc Res Tech 2021; 84:2082-2094. [PMID: 33913221 DOI: 10.1002/jemt.23764] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 02/06/2021] [Accepted: 03/19/2021] [Indexed: 12/20/2022]
Abstract
The objective was to formulate and analyze a dentin adhesive incorporated with graphene oxide (GO) nanoparticle and calcium phosphate (CaP) composite. Methods comprising of scanning electron microscopy (SEM)-energy dispersive X-ray spectroscopy (EDX), micro-Raman spectroscopy, shear bond strength (SBS), and Fourier transform infrared (FTIR) spectroscopy were used to characterize nanoparticle composite, dentin bond toughness, degree of conversion (DC), and adhesive-dentin interaction. Postsynthesis of GO nanoparticles, they were functionalized with CaP using standard process. The GO-CaP composite was not added to experimental adhesive (negative control group, GO-CaP-0%), and added at 2.5 and 5 wt% to yield GO-CaP-2.5% and GO-CaP 5% groups, respectively. Teeth were set to form bonded samples utilizing adhesives in three groups for SBS testing, with and without thermocycling. The homogenous diffusion of GO-CaP composite was verified in the adhesive. Resin tags having standard penetrations were observed on SEM micrographs. The EDX analysis confirmed the occurrence of calcium, phosphorus, and carbon ions in the composite containing adhesives. The SBS test revealed highest mean values for GO-CaP-5% followed by GO-CaP-2.5%. The FTIR spectra verified the presence of apatite peaks and the micro-Raman spectra showed characteristic D and G bands for GO nanoparticles. GO-CaP composite in dentin adhesive may improve its bond strength. The addition of 5 wt% resulted in a bond strength that was superior to all other groups. GO-CaP-5% group demonstrated lower DC (to control), uniform distribution of GO and CaP composite within adhesive, appropriate dentin interaction, and resin tag formation.
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Affiliation(s)
- Basil Almutairi
- Department of Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Hiba F Kattan
- Preventive Dental Science Department, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Abdulelah M BinMahfooz
- Department of Oral and Maxillofacial Prosthodontics, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Osama A Qutub
- Department of Oral and Maxillofacial Prosthodontics, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ghadeer Basunbul
- Department of Oral and Maxillofacial Prosthodontics, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Aws S ArRejaie
- Department of Prosthetic Dental Science, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Imran Farooq
- Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada
| | - Fahim Vohra
- Department of Prosthetic Dental Science, College of Dentistry, King Saud University; Research Chair for Biological Research in Dental Health, Riyadh, Saudi Arabia
| | - Tariq Abduljabbar
- Department of Prosthetic Dental Science, College of Dentistry, King Saud University; Research Chair for Biological Research in Dental Health, Riyadh, Saudi Arabia
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On the properties of nanosilicate-based filled dental adhesives: Synthesis, characterization, and optimized formulation. J Mech Behav Biomed Mater 2021; 119:104498. [PMID: 33839538 DOI: 10.1016/j.jmbbm.2021.104498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 03/21/2021] [Accepted: 03/23/2021] [Indexed: 11/21/2022]
Abstract
OBJECTIVE In this study, we incorporated hybrid nanoparticles (poly (acrylic acid)-grafted nanoclay/nanosilica, respectively, with platelet and spherical morphologies, abbreviated as PAA-g-NC-Sil) in different concentrations (0, 0.2, 0.5, 1, 2 and 5 wt%) to an experimental dentin bonding system and investigated the physical properties of the filled adhesive and its shear bond strength (μ-SBS) to dentin. We subsequently compared the properties of the adhesives containing PAA-g-NC-Sil with previously studied adhesives containing poly (methacrylic acid)-g-nanoclay (PMA-g-NC) (Solhi et al., 2012a), poly (acrylic acid)-g-nanoclay (PAA-g-NC) (Solhi et al., 2012b), and the hybrid poly (methacrylic acid)-grafted-nanoclay-nanosilica (PMA-g-NC-Sil) (Solhi et al., 2020). MATERIALS AND METHODS In a set of previous publications and the present paper, we grafted poly (acrylic acid) (PAA) or poly (methacrylic acid) (PMA) onto the surface of pristine Na-MMT nanoclay (Cloisite® Na+) through free radical polymerization of monomer in an aqueous media in the presence or absence of nanosilica particles. We characterized the resulting modified nanoparticles (PMA-g-NC, PAA-g-NC, PMA-g-NC-Sil and PAA-g-NC-Sil) using GPC, FTIR, TGA, and XRD. We then incorporated the modified particles as functionalized fillers to experimental dentin adhesives in different concentrations and studied the stability of modified fillers dispersion by separation analysis. We also studied the properties of the photo-cured adhesive matrices using FTIR, TEM, SEM, EDXA, and XRD. We examined the shear bond strength of the adhesives (containing different contents of each modified filler, separately) to human premolar teeth. The results were analysed and compared statistically. RESULTS The results confirmed that the polymers have been grafted onto the surface of nanoclay. An exfoliated structure for the nanoclay platelets in the photo-cured adhesive containing PAA-g-NC-Sil was observed. Addition of 0.5 wt% of PAA-g-NC-Sil to the experimental adhesive increased the shear bond strength and the dispersion stability in comparison to unfilled adhesive. The same trend was also observed for adhesives containing PMA-g-NC, PAA-g-NC, and PMA-g-NC-Sil. The adhesive containing PAA-g-NC-Sil showed the best dispersion stability and subsequently the highest shear bond strength in the optimal concentration among adhesives containing the four available fillers (PMA-g-NC, PAA-g-NC, PMA-g-NC-Sil and PAA-g-NC-Sil). SIGNIFICANCE Addition of poly (acrylic acid) modified nanoparticles to the experimental dentin adhesives resulted in higher shear bond strength due to the potential interactions between the carboxylic acid functional groups on the surface of the modified particles and the dentin structure. Between the poly (acrylic acid) and poly (methacrylic acid), the former acid with higher PKa performed better. Addition of the spherical nanosilica particles to the adhesives containing platelet nanoclay helped to better exfoliate the platelets resulting in improved μ-SBS and dispersion stability.
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Bastos NA, Bitencourt SB, Martins EA, De Souza GM. Review of nano-technology applications in resin-based restorative materials. J ESTHET RESTOR DENT 2020; 33:567-582. [PMID: 33368974 DOI: 10.1111/jerd.12699] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 12/09/2020] [Accepted: 12/14/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Nanotechnology has progressed significantly and particles as small as 3 nm are being employed in resin-based restorative materials to improve clinical performance. The goal of this review is to report the progress of nanotechnology in Restorative Dentistry by reviewing the advantages, limitations, and applications of resin-based restorative materials with nanoparticles. MATERIALS AND METHODS A literature review was conducted using PubMed/Medline, Scopus and Embase databases. In vitro, in vivo and in situ research studies published in English between 1999 and 2020, and which focused on the analysis of resin-based restorative materials containing nanoparticles were included. RESULTS A total of 140 studies were included in this review. Studies reported the effect of incorporating different types of nanoparticles on adhesive systems or resin composites. Mechanical, physical, and anti-bacterial properties were described. The clinical performance of resin-based restorative materials with nanoparticles was also reported. CONCLUSIONS The high surface area of nanoparticles exponentially increases the bioactivity of materials using bioactive nanofillers. However, the tendency of nanoparticles to agglomerate, the chemical instability of the developed materials and the decline of rheological properties when high ratios of nanoparticles are employed are some of the obstacles to overcome in the near future. CLINICAL SIGNIFICANCE In spite of the recent advancements of nanotechnology in resin-based restorative materials, some challenges need to be overcome before new nano-based restorative materials are considered permanent solutions to clinical problems.
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Affiliation(s)
- Natalia Almeida Bastos
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
| | - Sandro Basso Bitencourt
- Department of Dental Materials and Prosthodontics, Sao Paulo State University (UNESP), Araçatuba, Brazil
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Dentin Bond Integrity of Hydroxyapatite Containing Resin Adhesive Enhanced with Graphene Oxide Nano-Particles-An SEM, EDX, Micro-Raman, and Microtensile Bond Strength Study. Polymers (Basel) 2020; 12:polym12122978. [PMID: 33327410 PMCID: PMC7764838 DOI: 10.3390/polym12122978] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/06/2020] [Accepted: 12/07/2020] [Indexed: 12/13/2022] Open
Abstract
The aim was to synthesize and characterize an adhesive incorporating HA and GO nanoparticles. Techniques including scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX), micro-tensile bond strength (μTBS), and micro-Raman spectroscopy were employed to investigate bond durability, presence of nanoparticles inside adhesive, and dentin interaction. Control experimental adhesive (CEA) was synthesized with 5 wt% HA. GO particles were fabricated and added to CEA at 0.5 wt% (HA-GO-0.5%) and 2 wt% GO (HA-GO-2%). Teeth were prepared to produce bonded specimens using the three adhesive bonding agents for assessment of μTBS, with and without thermocycling (TC). The adhesives were applied twice on the dentin with a micro-brush followed by air thinning and photo-polymerization. The HA and GO nanoparticles demonstrated uniform dispersion inside adhesive. Resin tags with varying depths were observed on SEM micrographs. The EDX mapping revealed the presence of carbon (C), calcium (Ca), and phosphorus (P) in the two GO adhesives. For both TC and NTC samples, HA-GO-2% had higher μTBS and durability, followed by HA-GO-0.5%. The representative micro-Raman spectra demonstrated D and G bands for nano-GO particles containing adhesives. HA-GO-2% group demonstrated uniform diffusion in adhesive, higher μTBS, adequate durability, and comparable resin tag development to controls.
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Al-Hamdan RS, Almutairi B, Kattan HF, Alsuwailem NA, Farooq I, Vohra F, Abduljabbar T. Influence of Hydroxyapatite Nanospheres in Dentin Adhesive on the Dentin Bond Integrity and Degree of Conversion: A Scanning Electron Microscopy (SEM), Raman, Fourier Transform-Infrared (FTIR), and Microtensile Study. Polymers (Basel) 2020; 12:E2948. [PMID: 33321699 PMCID: PMC7764663 DOI: 10.3390/polym12122948] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/01/2020] [Accepted: 12/04/2020] [Indexed: 12/18/2022] Open
Abstract
An experimental adhesive incorporated with different nano-hydroxyapatite (n-HA) particle concentrations was synthesized and analyzed for dentin interaction, micro-tensile bond strength (μTBS), and degree of conversion (DC). n-HA powder (5 wt % and 10 wt %) were added in adhesive to yield three groups; gp-1: control experimental adhesive (CEA, 0 wt % HA), gp-2: 5 wt % n-HA (HAA-5%), and gp-3: 10 wt % n-HA (HAA-10%). The morphology of n-HA spheres was evaluated using Scanning Electron Microscopy (SEM). Their interaction in the adhesives was identified with SEM, Energy-Dispersive X-ray (EDX), and Micro-Raman spectroscopy. Teeth were sectioned, divided in study groups, and assessed for μTBS and failure mode. Employing Fourier Transform-Infrared (FTIR) spectroscopy, the DC of the adhesives was assessed. EDX mapping revealed the occurrence of oxygen, calcium, and phosphorus in the HAA-5% and HAA-10% groups. HAA-5% had the greatest μTBS values followed by HAA-10%. The presence of apatite was shown by FTIR spectra and Micro-Raman demonstrated phosphate and carbonate groups for n-HA spheres. The highest DC was observed for the CEA group followed by HAA-5%. n-HA spheres exhibited dentin interaction and formed a hybrid layer with resin tags. HAA-5% demonstrated superior μTBS compared with HAA-10% and control adhesive. The DC for HAA-5% was comparable to control adhesive.
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Affiliation(s)
- Rana S Al-Hamdan
- Department of Restorative Dental Sciences, College of Dentistry, King Saud University, 60169, Riyadh 11545, Saudi Arabia; (R.SA.-H.); (B.A.)
| | - Basil Almutairi
- Department of Restorative Dental Sciences, College of Dentistry, King Saud University, 60169, Riyadh 11545, Saudi Arabia; (R.SA.-H.); (B.A.)
| | - Hiba F Kattan
- Preventive Dental Science Department, Princess Nourah bint Abdulrahman University, Riyadh 11545, Saudi Arabia;
| | | | - Imran Farooq
- Faculty of Dentistry, University of Toronto, Toronto, ON M5S 1A1, Canada;
| | - Fahim Vohra
- Department of Prosthetic Dental Science, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia;
- Research Chair for Biological Research in Dental Health, College of Dentistry, Riyadh 11545, Saudi Arabia
| | - Tariq Abduljabbar
- Department of Prosthetic Dental Science, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia;
- Research Chair for Biological Research in Dental Health, College of Dentistry, Riyadh 11545, Saudi Arabia
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Mazloom-Jalali A, Taromi FA, Atai M, Solhi L. Dual modified nanosilica particles as reinforcing fillers for dental adhesives: Synthesis, characterization, and properties. J Mech Behav Biomed Mater 2020; 110:103904. [PMID: 32957210 DOI: 10.1016/j.jmbbm.2020.103904] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/28/2020] [Accepted: 05/31/2020] [Indexed: 12/31/2022]
Abstract
A facile procedure has been devised to develop a novel dentin bonding system containing poly (acrylic acid)-grafted-silanized fumed silica particles as reinforcing filler, with high stability of nanoparticle dispersion and enhanced bond strength and mechanical properties. In the first step, the silanization of fumed silica nanoparticles was performed in the following conditions: (i) ethanol-water solution with a pH of 5 and (ii) cyclohexane with a pH of 9 using trimethoxysilylpropyl methacrylate (γ-MPS) as a reactive silane coupling agent. FTIR and TGA analyses confirmed the presence of silane in the resultant structure and enhanced dispersion stability of modified particles was proved by a separation analyzer and also zeta potential analyses. In the second step, free radical polymerization of acrylic acid monomers in the presence of silanized nanoparticles was carried out and poly (acrylic acid) -grafted- silanized fumed silica were acquired. The flexural strength and fracture toughness of the adhesive containing 0.2 wt.% of the dual modified filler reached maximum of 70.4 MPa and 1.34 MPa m1/2, respectively, showing average improvements of 74% and 179%, respectively, in comparison with the adhesive without filler. Flexural modulus values did not significantly change with increasing the filler content except the adhesive containing 5 wt.% having the lowest flexural modulus. The highest microtensile bond strength was also observed at 0.2 wt.% filler content showing the average improvements of 197% as compared with the neat adhesive. Energy dispersive X-ray (EDX) mapping confirmed a homogenous and uniform distribution of the fillers in the adhesive matrix containing 0.2 wt.% and 0.5 wt.% of filler while incorporation of 5 wt.% led to large particle aggregates. SEM images of the fracture surface of the adhesive with different filler contents subjected to fracture toughness test showed rougher surface and longer crack path by increasing filler concentration. The adhesive containing 0.2 wt.% of filler perfectly penetrated into the dentin tubules proved by the SEM micrographs in microtensile bond strength test.
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Affiliation(s)
| | | | - Mohammad Atai
- Iran Polymer and Petrochemical Institute (IPPI), P.O. Box 14965/115, Tehran, Iran.
| | - Laleh Solhi
- Iran Polymer and Petrochemical Institute (IPPI), P.O. Box 14965/115, Tehran, Iran; Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, FI-00076, Aalto, Finland
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Solhi L, Atai M, Nodehi A, Imani M. Poly (methacrylic acid) modified spherical and platelet hybrid nanoparticles as reinforcing fillers for dentin bonding systems: Synthesis and properties. J Mech Behav Biomed Mater 2020; 109:103840. [PMID: 32543405 DOI: 10.1016/j.jmbbm.2020.103840] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 04/26/2020] [Accepted: 04/27/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVE In this study the mechanical and adhesion properties of an experimental methacrylate based dentin bonding system containing a combination of spherical and layered platelet nanoparticles were investigated. The nanoparticles were first modified through surface graft polymerization of methacrylic acid in order to make the particles surface compatible with the bonding matrix resin. MATERIALS AND METHODS Graft free radical polymerization in aqueous media was performed to attach Poly (methacrylic acid) (PMA) chains onto the surface of Na-MMT nanoclay (Cloisite® Na+) and silica nanoparticles (Aerosil® 200). The hybrid PMA grafted nanoparticles (PMA-g-NC-Sil) were characterized using GPC, FTIR, TGA, and X-ray diffraction (XRD). Dentin adhesives containing different amounts of the hybrid modified nanoparticles were photopolymerized and their characteristics were studied using FTIR, TEM, SEM, EDXA, and XRD techniques. The adhesives containing different amounts of PMA-g-NC-Sil were applied to the conditioned human premolar dentin to bond a dental composite to the teeth. The bond strength was then measured by microshear bond strength testing method. The results were analyzed and compared statistically. The stability of PMA-g-NC-Sil dispersion in the dentin adhesive was investigated using separation analysis (LUMi Reader) techniques. RESULTS The grafting of PMA chains onto the surface of nanoclay was confirmed by FTIR and TGA analytical techniques. The intercalated-exfoliated structure for the nanoclay platelets in the photo-cured adhesive was observed using XRD and TEM. The surface modification of the nanoparticles significantly increased the dispersion stability of the fillers in the adhesive solution. The microshear test results indicated that the incorporation of the PMA-g-NC-Sil nanoparticles significantly enhanced the bond strength to dentin with the highest shear bond strength observed at 0.5 wt%. SIGNIFICANCE The incorporation of the PMA modified hybrid nanofillers into the dentin adhesive resulted in a dentin bonding agent with enhanced shear bond strength through reinforcing the adhesive matrix and potential interactions between their carboxylic acid groups and the tooth structure. The dispersion stability of the nanoparticles was also dramatically improved by the surface modification of the nanoparticles.
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Affiliation(s)
- Laleh Solhi
- -Iran Polymer and Petrochemical Institute (IPPI), P.O. Box 14965/115, Tehran, Iran; -Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, FI-00076, Aalto, Finland
| | - Mohammad Atai
- -Iran Polymer and Petrochemical Institute (IPPI), P.O. Box 14965/115, Tehran, Iran.
| | - Azizollah Nodehi
- -Iran Polymer and Petrochemical Institute (IPPI), P.O. Box 14965/115, Tehran, Iran
| | - Mohammad Imani
- -Iran Polymer and Petrochemical Institute (IPPI), P.O. Box 14965/115, Tehran, Iran
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PMMA/double-modified organoclay nanocomposites as fillers for denture base materials with improved mechanical properties. J Mech Behav Biomed Mater 2019; 90:11-19. [DOI: 10.1016/j.jmbbm.2018.09.033] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Revised: 09/18/2018] [Accepted: 09/24/2018] [Indexed: 11/22/2022]
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Azad E, Atai M, Zandi M, Shokrollahi P, Solhi L. Structure–properties relationships in dental adhesives: Effect of initiator, matrix monomer structure, and nano-filler incorporation. Dent Mater 2018; 34:1263-1270. [DOI: 10.1016/j.dental.2018.05.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 04/24/2018] [Accepted: 05/09/2018] [Indexed: 11/16/2022]
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Deying C, Ge H, Chuanjian Z, Jianhua G, Junling W. [Antibacterial dental adhesive containing nanoantibacterial inorganic fillers]. HUA XI KOU QIANG YI XUE ZA ZHI = HUAXI KOUQIANG YIXUE ZAZHI = WEST CHINA JOURNAL OF STOMATOLOGY 2018; 36:46-51. [PMID: 29594995 PMCID: PMC7030171 DOI: 10.7518/hxkq.2018.01.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Revised: 09/28/2017] [Indexed: 11/21/2022]
Abstract
OBJECTIVE This investigation aimed to develop a novel antibacterial dental adhesive containing nanoantibacterial inorganic fillers and measure the dentin bonding strength, mechanical properties, and antibacterial property of the novel adhesive in vitro. METHODS Novel nanoantibacterial inorganic fillers containing quaternary ammonium salt with long chain alkyl were synthesized on the basis of previous research. These novel nanoantibacterial inorganic fillers were added into the dental adhesive to prepare novel nanoantibacterial dental resin composite at mass fractions of 0%, 2.5%, 5.0%, 7.5%, and 10%; 0% was used as control. Dentin shear bonding test was used to evaluate the bonding strength. Flexural test was utilized to measure the novel resin composite flexural strength and elastic modulus. A dental plaque microcosm biofilm model with human saliva as inoculum was formed. Colony forming unit, lactic acid production, and live/dead assay of the biofilm on novel dental adhesive were calculated to assess the effect of novel dental adhesive on human dental plaque microcosm biofilm. RESULTS The dentin shear bond strength, flexural strength, and elastic modulus were 28.9 MPa, 86.6 MPa, and 4.2 GPa, respectively, when the nanoantibacterial inorganic filler mass fraction in the dental adhesive reached approximately 5.0%. Consequently, the dentin shear bond strength and mechanical properties significantly increased. Addition of 2.5% nanoantibacterial inorganic fillers into the dental adhesive exerted no adverse effect on the mechanical properties significantly (P>0.05). Dental adhesive containing 5% or more nanoantibacterial inorganic fillers inhibited the metabolic activity of the dental plaque microcosm biofilm significantly, thereby displaying a strong antibacterial potency (P<0.05). CONCLUSIONS This novel antibacterial dental adhesive, which contained 5.0% nanoantibacterial inorganic filler, exhibited promising bonding strength, mechanical property, and antibacterial ability. Hence, this adhesive can be potentially used in caries inhibition in dental application.
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Affiliation(s)
- Chen Deying
- Dept. of Prosthodontics, School of Stomatology, Shandong University, Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, China
| | - Hu Ge
- Dept. of Prosthodontics, School of Stomatology, Shandong University, Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, China
| | - Zhou Chuanjian
- Research Institute of Polymer Materials, School of Materials Science and Engineering, Shandong University, Jinan 250061, China
| | - Ge Jianhua
- Research Institute of Polymer Materials, School of Materials Science and Engineering, Shandong University, Jinan 250061, China
| | - Wu Junling
- Dept. of Prosthodontics, School of Stomatology, Shandong University, Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, China
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Isoda K, Nagata R, Hasegawa T, Taira Y, Taira I, Shimizu Y, Isama K, Nishimura T, Ishida I. Hepatotoxicity and Drug/Chemical Interaction Toxicity of Nanoclay Particles in Mice. NANOSCALE RESEARCH LETTERS 2017; 12:199. [PMID: 28314361 PMCID: PMC5355403 DOI: 10.1186/s11671-017-1956-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 02/24/2017] [Indexed: 06/06/2023]
Abstract
Nanomaterials are relatively new and unconventional materials with many useful properties, but their effects on biological systems are poorly understood. Nanoclay is a general term for layered mineral silicate nanoparticles that are ideally suited for use in clay-based nanocomposites. The potential biological hazards of nanoclays have not been addressed, however. Therefore, we investigated the in vivo effects and drug interactions of nanoclays. In mice, administration of nanoclay particles via the tail vein led to acute liver injury. Co-administration of nanoclay and carbon tetrachloride, paraquat, or cisplatin resulted in both liver and kidney injury. Our findings thus indicate that nanoclay particles are potentially hepato- and nephrotoxic.
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Affiliation(s)
- Katsuhiro Isoda
- Faculty of Pharmaceutical Sciences, Teikyo Heisei University, 4-21-2 Nakano-ku, Tokyo, 164-8530, Japan.
| | - Ryutaro Nagata
- Faculty of Pharmaceutical Sciences, Teikyo Heisei University, 4-21-2 Nakano-ku, Tokyo, 164-8530, Japan
| | - Tomoya Hasegawa
- Faculty of Pharmaceutical Sciences, Teikyo Heisei University, 4-21-2 Nakano-ku, Tokyo, 164-8530, Japan
| | - Yuichiro Taira
- Faculty of Pharmaceutical Sciences, Teikyo Heisei University, 4-21-2 Nakano-ku, Tokyo, 164-8530, Japan
| | - Ikuko Taira
- Faculty of Pharmaceutical Sciences, Teikyo Heisei University, 4-21-2 Nakano-ku, Tokyo, 164-8530, Japan
| | - Yoshimi Shimizu
- Faculty of Pharmaceutical Sciences, Teikyo Heisei University, 4-21-2 Nakano-ku, Tokyo, 164-8530, Japan
| | - Kazuo Isama
- Faculty of Pharmaceutical Sciences, Teikyo Heisei University, 4-21-2 Nakano-ku, Tokyo, 164-8530, Japan
| | - Tetsuji Nishimura
- Faculty of Pharmaceutical Sciences, Teikyo Heisei University, 4-21-2 Nakano-ku, Tokyo, 164-8530, Japan
| | - Isao Ishida
- Faculty of Pharmaceutical Sciences, Teikyo Heisei University, 4-21-2 Nakano-ku, Tokyo, 164-8530, Japan
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ZnCl 2 Incorporated into Experimental Adhesives: Selected Physicochemical Properties and Resin-Dentin Bonding Stability. BIOMED RESEARCH INTERNATIONAL 2017; 2017:5940479. [PMID: 29270433 PMCID: PMC5706081 DOI: 10.1155/2017/5940479] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 08/17/2017] [Accepted: 08/30/2017] [Indexed: 02/03/2023]
Abstract
The aim of this study was to evaluate the degree of conversion (DC%), water sorption (WS), solubility (SO), and resin-dentin bonding stability of experimental adhesive systems containing ZnCl2. Different concentrations (wt.%) of ZnCl2 were added to a model etch-and-rinse adhesive system consisting of BISGMA, HEMA, UDMA, GDMA, water, and ethanol: Zn0 (0%-control group); Zn2 (2%); Zn3.5 (3.5%); and Zn5 (5%). Adper Single Bond 2 (SB) was used as commercial reference. The samples were light cured for 20s using a quartz-tungsten-halogen unit (650 mW/cm2). DC% (n = 5) was measured using FT-IR spectroscopy, and WS and SO (n = 5) were calculated based on ISO4049. Microtensile bond strength (μTBS) and nanoleakage (NL) were measured after 24 h and 12 months of water storage (n = 10). Data were analyzed using ANOVA and Tukey's HSD test (5%). Zn5 presented the lowest DC% and the highest WS and SO (p < 0.05). Zn0 and Zn2 presented statistically similar DC%, WS, SO, and immediate μTBS. All adhesives containing ZnCl2 maintained a μTBS stability after 12 months, but only Zn2 and Zn3.5 did not suffer an increase in NL. SB presented the highest immediate μTBS but the greatest reduction after 12 months (p < 0.05). The addition of 2 wt.% of ZnCl2 in adhesive formulations seems to be a promising way to improve the resin-dentin bonding stability. Higher concentrations than 2 wt.% could impair some physicochemical properties.
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Fallahzadeh F, Safarzadeh-Khosroshahi S, Atai M. Dentin bonding agent with improved bond strength to dentin through incorporation of sepiolite nanoparticles. J Clin Exp Dent 2017. [PMID: 28638548 PMCID: PMC5474327 DOI: 10.4317/jced.53722] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Background The study aims to investigate the effect of incorporation of sepiolite nanoparticles on the microtensile bond strength of an experimental dentin bonding to the human dentin. Material and Methods The sepiolite nanoparticles were incorporated into an experimental methacrylate-based dentin bonding system in concentrations of 0.0, 0.2, 1.0, 2.0, and 5.0 weight percents. The specimens were then ultrasonicated to finely disperse the nanoparticles in the adhesive matrix. The coronal enamel of 30 intact human premolars was cut to expose dentin. Having etched, rinsed, and blot dried the experimental bonding agents were applied to dentin surface. Adper Single Bond was used as control group according to the manufactor’s instruction. Then all the teeth were built up by composite and sectioned in stick form for microtensile test. The fracture surface was observed using SEM. The data were analyzed by ANOVA and Tukey’s post-Hoc test. Results The results indicated that the incorporation of the nanofiller, improved the bond strength to dentin with the highest values obtained at 1 w% sepiolite nanoparticle content. Conclusions Sepiolite nanoparticles can be considered as novel fillers to improve the mechanical properties of dentin bonding agents. Key words:Dentin bonding agent, nanoparticles, bond strength, sepiolite, microtensile test.
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Affiliation(s)
- Farnoosh Fallahzadeh
- Assistant Professor of Operative Dentistry, Dental Caries Prevention Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Shadab Safarzadeh-Khosroshahi
- Assistant Professor of Operative Dentistry, Dental Caries Prevention Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Mohammad Atai
- Professor, Department of Polymer Science, Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran
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Effect of nanoclay addition on physical, chemical, optical and biological properties of experimental dental resin composites. Dent Mater 2017; 33:271-279. [DOI: 10.1016/j.dental.2016.11.016] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 11/23/2016] [Accepted: 11/30/2016] [Indexed: 11/18/2022]
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Barcellos DC, Fonseca BM, Pucci CR, Cavalcanti BDN, Persici EDS, Gonçalves SEDP. Zn-doped etch-and-rinse model dentin adhesives: Dentin bond integrity, biocompatibility, and properties. Dent Mater 2016; 32:940-50. [DOI: 10.1016/j.dental.2016.04.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 04/15/2016] [Accepted: 04/23/2016] [Indexed: 11/25/2022]
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Lučić Škorić M, Milosavljević N, Radetić M, Šaponjić Z, Radoičić M, Kalagasidis Krušić M. Synthesis and characterization of interpenetrating polymer network based on sodium alginate and methacrylic acid and potential application for immobilization of TiO2
nanoparticles. POLYM ENG SCI 2015. [DOI: 10.1002/pen.24141] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Marija Lučić Škorić
- Department of Organic Chemical Technology, University of Belgrade, Faculty of Technology and Metallurgy; University of Belgrade; Karnegijeva 4 11120 Belgrade Serbia
| | - Nedeljko Milosavljević
- Department of Organic Chemical Technology, University of Belgrade, Faculty of Technology and Metallurgy; University of Belgrade; Karnegijeva 4 11120 Belgrade Serbia
| | - Maja Radetić
- Department of Textile Engineering, University of Belgrade, Faculty of Technology and Metallurgy; University of Belgrade; Karnegijeva 4 11120 Belgrade Serbia
| | - Zoran Šaponjić
- University of Belgrade, “Vinča” Institute of Nuclear Sciences; P.O. Box 522 11001 Belgrade Serbia
| | - Marija Radoičić
- University of Belgrade, “Vinča” Institute of Nuclear Sciences; P.O. Box 522 11001 Belgrade Serbia
| | - Melina Kalagasidis Krušić
- Department of Organic Chemical Technology, University of Belgrade, Faculty of Technology and Metallurgy; University of Belgrade; Karnegijeva 4 11120 Belgrade Serbia
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Halloysite nanotube incorporation into adhesive systems—effect on bond strength to human dentin. Clin Oral Investig 2015; 19:1905-12. [DOI: 10.1007/s00784-015-1413-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Accepted: 01/21/2015] [Indexed: 11/26/2022]
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de Paiva Campos LM, Lugão AB, Vasconcelos MR, Parra DF. Polymerization shrinkage evaluation on nanoscale-layered silicates: Bis-GMA/TEGMA nanocomposites, in photo-activated polymeric matrices. J Appl Polym Sci 2014. [DOI: 10.1002/app.40010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Luiza Mello de Paiva Campos
- Center of Chemistry and Environment; Institute of Nuclear and Energy Research, University of São Paulo; São Paulo Brazil
| | - Ademar Benévolo Lugão
- Center of Chemistry and Environment; Institute of Nuclear and Energy Research, University of São Paulo; São Paulo Brazil
| | | | - Duclerc Fernandes Parra
- Center of Chemistry and Environment; Institute of Nuclear and Energy Research, University of São Paulo; São Paulo Brazil
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Advanced progress of microencapsulation technologies: In vivo and in vitro models for studying oral and transdermal drug deliveries. J Control Release 2014; 178:25-45. [DOI: 10.1016/j.jconrel.2013.12.028] [Citation(s) in RCA: 126] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Revised: 12/10/2013] [Accepted: 12/17/2013] [Indexed: 11/20/2022]
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Lučić M, Milosavljević N, Radetić M, Šaponjić Z, Radoičić M, Kalagasidis Krušić M. The potential application of TiO2/hydrogel nanocomposite for removal of various textile azo dyes. Sep Purif Technol 2014. [DOI: 10.1016/j.seppur.2013.11.002] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Wei QB, Fu F, Zhang YQ, Tang L. Preparation, characterization, and antibacterial properties of pH-responsive P(MMA-co-MAA)/silver nanocomposite hydrogels. JOURNAL OF POLYMER RESEARCH 2014. [DOI: 10.1007/s10965-013-0349-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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28
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KGM and PMAA based pH-sensitive interpenetrating polymer network hydrogel for controlled drug release. Carbohydr Polym 2013; 97:565-70. [DOI: 10.1016/j.carbpol.2013.05.007] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2013] [Revised: 05/01/2013] [Accepted: 05/07/2013] [Indexed: 11/22/2022]
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Fadaie P, Atai M, Imani M, Karkhaneh A, Ghasaban S. Cyanoacrylate–POSS nanocomposites: Novel adhesives with improved properties for dental applications. Dent Mater 2013; 29:e61-9. [DOI: 10.1016/j.dental.2013.03.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Revised: 01/31/2013] [Accepted: 03/04/2013] [Indexed: 01/17/2023]
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