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Zhu D, Wagner P, Xiao P. Terthiophene Derivative-Based Photoinitiating Systems for Free Radical and Cationic Polymerization under Blue LEDs. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c00743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Di Zhu
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Pawel Wagner
- ARC Centre of Excellence for Electromaterials Science and the Intelligent Polymer Research Institute, Australian Institute for Innovative Materials, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - Pu Xiao
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory 2601, Australia
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Pérez-Mondragón AA, Cuevas-Suárez CE, González-López JA, Trejo-Carbajal N, Herrera-González AM. Evaluation of new coinitiators of camphorquinone useful in the radical photopolymerization of dental monomers. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112844] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Topa M, Ortyl J. Moving Towards a Finer Way of Light-Cured Resin-Based Restorative Dental Materials: Recent Advances in Photoinitiating Systems Based on Iodonium Salts. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4093. [PMID: 32942676 PMCID: PMC7560344 DOI: 10.3390/ma13184093] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/03/2020] [Accepted: 09/10/2020] [Indexed: 02/06/2023]
Abstract
The photoinduced polymerization of monomers is currently an essential tool in various industries. The photopolymerization process plays an increasingly important role in biomedical applications. It is especially used in the production of dental composites. It also exhibits unique properties, such as a short time of polymerization of composites (up to a few seconds), low energy consumption, and spatial resolution (polymerization only in irradiated areas). This paper describes a short overview of the history and classification of different typical monomers and photoinitiating systems such as bimolecular photoinitiator system containing camphorquinone and aromatic amine, 1-phenyl-1,2-propanedione, phosphine derivatives, germanium derivatives, hexaarylbiimidazole derivatives, silane-based derivatives and thioxanthone derivatives used in the production of dental composites with their limitations and disadvantages. Moreover, this article represents the challenges faced when using the latest inventions in the field of dental materials, with a particular focus on photoinitiating systems based on iodonium salts. The beneficial properties of dental composites cured using initiation systems based on iodonium salts have been demonstrated.
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Affiliation(s)
- Monika Topa
- Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland
| | - Joanna Ortyl
- Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland
- Photo HiTech Ltd., Bobrzyńskiego 14, 30-348 Cracow, Poland
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Wang J, Yang J, Atif M, Bongiovanni R, Li G, Xue Z, Yang X. One-component photoinitiator based on benzophenone and sesamol. POLYM ADVAN TECHNOL 2018. [DOI: 10.1002/pat.4337] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jing Wang
- State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 China
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering; Beijing University of Chemical Technology; Beijing 100029 China
| | - Jinliang Yang
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beijing 100029 China
| | - Muhammad Atif
- University of Education Lahore; College Road Lahore Pakistan
| | - Roberta Bongiovanni
- Department of Applied Sciences and Technology; Politecnico di Torino; Corso Duca Degli Abruzzi-24 10129 Torino Italy
| | - Gang Li
- State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 China
| | - Zhongmin Xue
- Sinoma Science & Technology Co. Ltd; Beijing 100097 China
| | - Xiaoping Yang
- State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 China
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Jian K, Nie J, Li D, Yang J. A one-component photoinitiator based on 4-methylbenzophenone and morpholine. POLYMER SCIENCE SERIES B 2016. [DOI: 10.1134/s1560090416060099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Eren TN, Okte N, Morlet-Savary F, Fouassier JP, Lalevee J, Avci D. One-component thioxanthone-based polymeric photoinitiators. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28227] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Tugce Nur Eren
- Department of Chemistry; Bogazici University; 34342 Bebek Istanbul Turkey
| | - Neren Okte
- Department of Chemistry; Bogazici University; 34342 Bebek Istanbul Turkey
| | - Fabrice Morlet-Savary
- Institut De Science Des Matériaux De Mulhouse IS2M, UMR CNRS 7361, UHA; 15, Rue Jean Starcky Mulhouse Cedex 68057 France
| | | | - Jacques Lalevee
- Institut De Science Des Matériaux De Mulhouse IS2M, UMR CNRS 7361, UHA; 15, Rue Jean Starcky Mulhouse Cedex 68057 France
| | - Duygu Avci
- Department of Chemistry; Bogazici University; 34342 Bebek Istanbul Turkey
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Tris(trimethylsilyl)silane as a co-initiator for dental adhesive: Photo-polymerization kinetics and dynamic mechanical property. Dent Mater 2015; 32:102-13. [PMID: 26616688 DOI: 10.1016/j.dental.2015.10.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Revised: 09/15/2015] [Accepted: 10/29/2015] [Indexed: 11/22/2022]
Abstract
OBJECTIVES The purpose of this study was to evaluate the polymerization behavior of a model dentin adhesive with tris(trimethylsilyl)silane (TTMSS) as a co-initiator, and to investigate the polymerization kinetics and mechanical properties of copolymers in dry and wet conditions. METHODS A co-monomer mixture based on HEMA/BisGMA (45/55, w/w) was used as a model dentin adhesive. The photoinitiator system included camphorquinone (CQ) as the photosensitizer and the co-initiator was ethyl-4-(dimethylamino) benzoate (EDMAB) or TTMSS. Iodonium salt, diphenyliodonium hexafluorophosphate (DPIHP) serving as a catalyst, was selectively added into the adhesive formulations. The control and the experimental formulations were characterized with regard to the degree of conversion (DC) and dynamic mechanical properties under dry and wet conditions. RESULTS In two-component photoinitiator system (CQ/TTMSS), with an increase of TTMSS concentration, the polymerization rate and DC of CC double bond increased, and showed a dependence on the irradiation time and curing light intensity. The copolymers that contained the three-component photoinitiator system (CQ/TTMSS/DPIHP) showed similar dynamic mechanical properties, under both dry and wet conditions, to the EDMAB-containing system. SIGNIFICANCE The DC of formulations using TTMSS as co-initiator showed a strong dependence on irradiation time. With the addition of TTMSS, the maximum polymerization rate can be adjusted and the network structure became more homogenous. The results indicated that the TTMSS could be used as a substitute for amine-type co-initiator in visible-light induced free radical polymerization of methacrylate-based dentin adhesives.
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Alves GC, Sobral APV. Evaluation of Biocompatibility of an Etch-and-Rinse Adhesive System Based in Tertiary Butanol Applied in Deep Cavity. Open Dent J 2015; 9:168-73. [PMID: 26140062 PMCID: PMC4484345 DOI: 10.2174/1874210601509010168] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Revised: 03/10/2015] [Accepted: 03/24/2015] [Indexed: 11/22/2022] Open
Abstract
The aim of this study was to evaluate biocompatibility of an etch-and-rinse adhesive system based in tertiary butanol applied in deep cavity human teeth with approximately 1 mm of remaining dentin by observing histological changes of the pulp tissue of humans at intervals of 01, 07, 14 and 21 days. Twenty third molars with indication for xtraction from patients of both sexes, presenting no systemic alterations were used. Class I cavity was made deeper and then, XP BOND adhesive system and resin Filtek Z250 were applied. The sample was divided into four groups according to the time intervals between the application of adhesive system and extraction. Morphologic criteria analysed considered the presence of hyperemia, type of inflammatory cell response, organization of odontoblast cells layer, organization of pulp tissue and the presence or absence of bacteria. Data were submitted to Fisher Exact Test p> 0.05. We observed mild inflammatory infiltrate, preserved pulp tissue morphology, disorganization of the odontoblast layer in most specimens, as well as absence of bacteria at the intervals of 01, 07, 14 and 21 days. In some cases there was pulp hyperemia. The etchand- rinse adhesive system based in tertiary butanol showed satisfactory behavior in the conditions studied.
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Affiliation(s)
- Gilvanely Cardoso Alves
- Department of Restorative Dentistry, Faculty of Dentistry, University of Pernambuco, Camaragibe, 1650, Pernambuco, Brazil
| | - Ana Paula Veras Sobral
- Department of Oral Pathology, Faculty of Dentistry, University of Pernambuco, Camaragibe, 1650, Pernambuco, Brazil
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Yang J, Shi S, Nie J. Reasons for the yellowness of photocured samples by the benzophenone/1,3-benzodioxole photoinitiating system. NEW J CHEM 2015. [DOI: 10.1039/c5nj00575b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reasons for the yellowness in samples photocured by benzophenone/1,3-benzodioxole.
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Affiliation(s)
- Jinliang Yang
- Changzhou Institute of Advanced Materials
- Beijing University of Chemical Technology
- Changzhou
- P. R. China
- State Key Laboratory of Chemical Resource Engineering & Beijing Laboratory of Biomedical Materials
| | - Suqing Shi
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education and Department of Chemistry
- Northwest University
- Xi'an 710069
- P. R. China
| | - Jun Nie
- Changzhou Institute of Advanced Materials
- Beijing University of Chemical Technology
- Changzhou
- P. R. China
- State Key Laboratory of Chemical Resource Engineering & Beijing Laboratory of Biomedical Materials
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Song G, Jiang C, Wang N, Jiang M, Nie J, Ma G. Visible light photopolymerization induced by triazine derivative. POLYMER SCIENCE SERIES B 2014. [DOI: 10.1134/s1560090414050145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Cheng J, Jiang S, Gao Y, Wang J, Sun F, Du H. Hydrosoluble hybrid and multifunctional polysiloxane-based photoinitiators for initiating gradient photopolymerization of acrylamide aqueous solution. RSC Adv 2014. [DOI: 10.1039/c4ra02623c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Ortega Í, Deshpande P, Gill AA, MacNeil S, Claeyssens F. Development of a microfabricated artificial limbus with micropockets for cell delivery to the cornea. Biofabrication 2013; 5:025008. [DOI: 10.1088/1758-5082/5/2/025008] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Ji L, Chang W, Cui M, Nie J. Photopolymerization kinetics and volume shrinkage of 1,6-hexanediol diacrylate at different temperature. J Photochem Photobiol A Chem 2013. [DOI: 10.1016/j.jphotochem.2012.12.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Yang J, Shi S, Xu F, Nie J. Synthesis and photopolymerization kinetics of benzophenonesesamol one-component photoinitiator. Photochem Photobiol Sci 2013; 12:323-9. [DOI: 10.1039/c2pp25241d] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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He J, Liu F, Luo Y, Jia D. Properties of 2,2-Bis[p-(2′-hydroxy-3′-methacryloxy propoxy)phenyl]propane/Isobornyl (Meth)acrylate copolymers. J Appl Polym Sci 2012. [DOI: 10.1002/app.36629] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Cramer N, Stansbury J, Bowman C. Recent advances and developments in composite dental restorative materials. J Dent Res 2011; 90:402-16. [PMID: 20924063 PMCID: PMC3144137 DOI: 10.1177/0022034510381263] [Citation(s) in RCA: 364] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2010] [Revised: 07/01/2010] [Accepted: 07/15/2010] [Indexed: 11/16/2022] Open
Abstract
Composite dental restorations represent a unique class of biomaterials with severe restrictions on biocompatibility, curing behavior, esthetics, and ultimate material properties. These materials are presently limited by shrinkage and polymerization-induced shrinkage stress, limited toughness, the presence of unreacted monomer that remains following the polymerization, and several other factors. Fortunately, these materials have been the focus of a great deal of research in recent years with the goal of improving restoration performance by changing the initiation system, monomers, and fillers and their coupling agents, and by developing novel polymerization strategies. Here, we review the general characteristics of the polymerization reaction and recent approaches that have been taken to improve composite restorative performance.
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Affiliation(s)
- N.B. Cramer
- Dept. of Chemical & Biological Engineering, University of Colorado, UCB 424, Boulder, CO 80309, USA
| | - J.W. Stansbury
- Dept. of Chemical & Biological Engineering, University of Colorado, UCB 424, Boulder, CO 80309, USA
- Dept. of Craniofacial Biology, School of Dental Medicine, University of Colorado Denver, Aurora, CO 80045, USA
| | - C.N. Bowman
- Dept. of Chemical & Biological Engineering, University of Colorado, UCB 424, Boulder, CO 80309, USA
- Dept. of Craniofacial Biology, School of Dental Medicine, University of Colorado Denver, Aurora, CO 80045, USA
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Influence of chemical structures of benzodioxole-based coinitiators on the properties of the unfilled dental resin. Acta Biomater 2010; 6:3067-71. [PMID: 20170761 DOI: 10.1016/j.actbio.2010.02.022] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2009] [Revised: 12/23/2009] [Accepted: 02/11/2010] [Indexed: 11/22/2022]
Abstract
To investigate the influence of chemical structures of benzodioxole-based coinitiator on the initiating reactivity and the mechanical properties of cured samples for the unfilled dental resin, a mixture of 2,2-bis[4-(2-hydroxy-3-methacryloxyprop-1-oxy)phenyl]propane (bis-GMA) and triethylene glycol dimethacrylate (TEGDMA) (70/30 wt.%) was photoinduced by combinations of camphorquinone (CQ) and benzodioxole derivatives. 2-(N,N-Dimethylamino)ethyl methacrylate (DMEM) was used as control. The kinetics was monitored by a real-time Fourier transformation infrared spectroscopy (FTIR) and the dynamic mechanical analysis was performed on a dynamic mechanical analyzer (DMA). The cytotoxicity property of the cured samples was evaluated by MTT assay in vitro using VERO as reference cell lines. The results indicated that the 4-position phenyl ring substituents of the benzodioxole-based coinitiator had great influence on the initiating reactivity. Incorporating substituents with pi electron acceptors in the 4-position of phenyl ring led to the decrease of the rate of polymerization (R(p)) of the CQ/benzodioxole derivatives. However, the electron-donating substituents were useful to increase the reactivity. When compared with CQ/amine initiating systems, the combination of CQ and benzodioxole compounds caused lower R(p) but the comparable final double bond conversion. All the cured films initiated by CQ/benzodioxole derivatives had almost the same glass transition temperature (T(g)) and storage modulus. Indirect cytotoxicity assessment indicated low cytotoxicity of benzodioxole derivatives. These results were very useful for the design of benzodioxole derivatives with satisfactory reactivity and biocompatibility, and are very important for clinical applications.
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Wang K, Yang D, Xiao M, Chen X, Lu F, Nie J. Sesamin as a co-initiator for unfilled dental restorations. Acta Biomater 2009; 5:2508-17. [PMID: 19349221 DOI: 10.1016/j.actbio.2009.03.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2008] [Revised: 03/08/2009] [Accepted: 03/09/2009] [Indexed: 11/15/2022]
Abstract
A natural component, sesamin (SA), was used to replace conventional amine as co-initiator for dental composite. A combination of camphorquinone (CQ) and SA was employed to initiate the photopolymerization of 2-2-bis[4-(2-hydroxy-3-methacryloxyprop-1-oxy)phenyl] propane/triethylene glycol dimethacrylate (70/30wt.%). The kinetics was recorded by real-time Fourier transform infrared spectroscopy. The mechanical properties were measured by dynamic mechanical analysis, the cell toxicity was investigated by MTT assay and a mixture of CQ and ethyl 4-N,N-dimethylaminobenzoate (EDMAB) was used as control in the same photocuring condition. The results indicated that the addition of SA as co-initiator greatly improved the rate of polymerization and final double-bond conversion (DC) when compared with the system initiated by CQ alone. Compared with EDMAB, the final DC of the CQ/SA system (71%) was slightly lower than that of CQ/EDMAB (76%); SA resulted in approximately the same storage modulus at around 37 degrees C, but a slightly higher glass transition temperature. SA produced lower yellowing effect and good in vitro biocompatibility. The water sorption and solubility for two mixtures were very close and within the range of the ISO 4049 specification. These results suggest that SA is an effective alternative co-initiator to conventional amine. The natural compound characteristics of SA make it more promising than amine in dental resin formulations.
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Affiliation(s)
- Kemin Wang
- State Key Laboratory of Chemical Resource Engineering, Key Lab of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China
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Wang K, Yin R, Zhang X, Shi S, Nie J. Synthesis and photopolymerization of piperonylamine derivatives as a polymerizable cyclic acetals co-initiator for light-cured unfilled dental resins. POLYM ADVAN TECHNOL 2009. [DOI: 10.1002/pat.1469] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Hou G, Shi S, Liu S, Nie J. Synthesis and Evaluation of 4-Benzophenone Methoxyl Methacrylate As a Polymerizable Photoinitiator. Polym J 2008. [DOI: 10.1295/polymj.pj2007012] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Xu H, Wu G, Nie J. Synthesis and photopolymerization characteristics of amine coinitiator. J Photochem Photobiol A Chem 2008. [DOI: 10.1016/j.jphotochem.2007.07.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Liu S, Shi S, Hou G, Nie J. Benzodioxole derivative as coinitiator for dental resin. Acta Odontol Scand 2007; 65:313-8. [PMID: 18071954 DOI: 10.1080/00016350701742349] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE The aim of this work was to examine whether it was possible to substitute benzodioxole derivatives for amine as coinitiators for dental application. MATERIAL AND METHODS A mixture of urethane dimethacrylate (UDMA)/triethylene glycol dimethacrylate (TEGDMA) (70/30 wt%), camphorquinone (CQ) and coinitiators was photocured. Real time Fourier Transform Infrared Spectroscopy with a horizontal sample holder was used to monitor the extent of polymerization. Dynamic mechanical analysis was performed over a temperature range from -50 degrees C to 200(o)C, with a ramping rate of 5(o)C per minute, using extension mode. RESULTS Benzodioxole derivatives as coinitiator improved the rate of polymerization and final double bond conversion of the dental resin. The cured samples showed similar properties, e.g. modulus, glass transition temperature, water sorption and solubility. CONCLUSION The results indicate that two benzodioxole derivatives, piperonyl alcohol (PAL) and benzodioxole (BDO), are viable alternatives to conventional amines as coinitiator. The biocompatibility of benzodioxole derivatives makes them more promising than amine in dental resin formulations.
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Shi S, Nie J. Investigation of 3,4-methylenedioxybenzene methoxyl methacrylate as coinitiator and comonomer for dental application. J Biomed Mater Res B Appl Biomater 2007; 82:487-93. [PMID: 17285604 DOI: 10.1002/jbm.b.30754] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In this study, 3,4-methylenedioxybenzene methoxyl methacrylate (MDBMM) was synthesized for the purpose of replacing both triethylene glycol dimethacrylate (TEGDMA) and tertiary amine, which was usually used as a comonomer and coinitiator for dental resin, respectively. Urethane dimethacrylate (UDMA) was chosen as a monomer. Real time near Fourier transform infrared (FTIR) with a horizontal sample holder and dynamic mechanical analyzer (DMA) were used to study the kinetics and mechanical properties, respectively. The results showed that the addition of MDBMM as a coinitiator in UDMA/TEGDMA/CQ (70/30/0.5 wt %) system led to the increase of the rate of polymerization. When compared with the commercial polymerizable amine, 2-(N,N-dimethyl amino)ethyl methacrylate (DMEM), MDBMM showed comparable initiating reactivity and led to higher modulus around human body temperature (37 degrees C). MDBMM as a comonomer resulted in slightly higher final double bond conversion than that of TEGDMA, which brought higher modulus around 37 degrees C. Therefore, MDBMM can be used as both potential coinitiator and comonomer for dental application.
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Affiliation(s)
- Suqing Shi
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, People's Republic of China
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Shi S, Nie J. A natural component as coinitiator for unfilled dental resin composites. J Biomed Mater Res B Appl Biomater 2007; 82:44-50. [PMID: 17245738 DOI: 10.1002/jbm.b.30703] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A natural component, 1,3-benzodioxole (BDO), was used for the purpose of replacing the conventional amine for dental composite. Camphorquinone (CQ)/BDO was used to initiate the photopolymerization of urethane dimethacrylate (UDMA)/triethylene glycol dimethacrylate (TEGDMA) (70/30 wt %). The kinetics was recorded by real-time Fourier transformation infrared spectroscopy (FTIR). The mechanical properties were measured by dynamic mechanical analyzer (DMA), and CQ/ethyl 4-N,N-dimethylaminobenzoate (EDMAB) mixture was used as control in the same photocuring condition. The results indicated that, the addition of BDO as coinitiator greatly improved the rate of polymerization and final double bond conversion (DC), when compared with the system initiated by CQ alone. BDO and EDMAB were found to reach almost the same final DC (75%), though the kinetics of two systems was different. Comparing with EDMAB, BDO brought approximately the same glass transition temperature (Tg), but slightly higher storage modulus around 37 degrees C. The water sorption and solubility for two mixtures were almost the same and within the range of the ISO 4049's standards. These results suggested that BDO was an effective alternative to conventional amine for coinitiator. And the human diet characteristics of BDO made it more promising than amine in the dental resin formulations.
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Affiliation(s)
- Suqing Shi
- Department of Chemistry, Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Wuhan 430072, People's Republic of China
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Van Landuyt KL, Snauwaert J, De Munck J, Peumans M, Yoshida Y, Poitevin A, Coutinho E, Suzuki K, Lambrechts P, Van Meerbeek B. Systematic review of the chemical composition of contemporary dental adhesives. Biomaterials 2007; 28:3757-85. [PMID: 17543382 DOI: 10.1016/j.biomaterials.2007.04.044] [Citation(s) in RCA: 729] [Impact Index Per Article: 42.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2007] [Accepted: 04/26/2007] [Indexed: 11/22/2022]
Abstract
Dental adhesives are designed to bond composite resins to enamel and dentin. Their chemical formulation determines to a large extent their adhesive performance in clinic. Irrespective of the number of bottles, an adhesive system typically contains resin monomers, curing initiators, inhibitors or stabilizers, solvents and sometimes inorganic filler. Each one of these components has a specific function. The aim of this article is to systematically review the ingredients commonly used in current dental adhesives as well as the properties of these ingredients. This paper includes an extensive table with the chemical formulation of contemporary dental adhesives.
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Affiliation(s)
- Kirsten L Van Landuyt
- Leuven BIOMAT Research Cluster, Department of Conservative Dentistry, School of Dentistry, Oral Pathology and Maxillo-Facial Surgery, Catholic University of Leuven, Kapucijnenvoer 7, B 3000 Leuven, Belgium
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Wu G, Shi S, Xiao P, Nie J. Synthesis and characterization of aliphatic amine co-initiator with different chain length for photopolymerization of dimethacrylate. J Photochem Photobiol A Chem 2007. [DOI: 10.1016/j.jphotochem.2006.12.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Lu B, Xiao P, Sun M, Nie J. Reducing volume shrinkage by low-temperature photopolymerization. J Appl Polym Sci 2007. [DOI: 10.1002/app.25758] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Sun F, Jiang SL, Du HG. The photosensitive properties of polysiloxane acrylate resin containing tertiary amine groups. J Appl Polym Sci 2007. [DOI: 10.1002/app.27492] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Synthesis and evaluation of N,N-dimethyl-N′,N′-di[2-(methylacryloyl)-ethoxycarbnylethyl] propyldiamine as a coinitiator. J Photochem Photobiol A Chem 2006. [DOI: 10.1016/j.jphotochem.2006.03.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Feng L, Suh BI. The Noise in Measurements of Degree of Conversion of (Meth)Acrylates by FTIR-ATR. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2006. [DOI: 10.1080/10236660600630418] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Li Feng
- a Bisco, Inc. , Schaumburg , Illinois , USA
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Wu G, Nie J. Synthesis and evaluation of ethylene glycol 3-diethylamino-propionate methacrylate as a polymerizable amine coinitiator for dental application. Dent Mater 2006; 23:623-9. [PMID: 16797689 DOI: 10.1016/j.dental.2006.03.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2005] [Revised: 03/07/2006] [Accepted: 03/09/2006] [Indexed: 11/22/2022]
Abstract
OBJECTIVE The primary objective of this study was to synthesize and characterize ethylene glycol 3-diethylamino-propionate methacrylate (EGDPM) as a polymerizable coinitiator to replace the commercial amine coinitiator. The 2,2-bis[4-(2-hydroxy-3-methacryloxypropoxy)phenyl]-propane (Bis-GMA) and triethylene glycol dimethylacrylate (TEGDMA) resin mixture was polymerized by camphorquinone/EGDPM initiator system under visible light irradiation. The mechanical properties, water sorption and solubility of cured samples were also evaluated. METHODS EGDPM was synthesized via Michael-Addition reaction and characterized using FTIR and 1H NMR spectroscopy. Photopolymerization kinetics of the dental resin mixtures were monitored by real-time IR (RTIR). The mechanical properties of cured samples were recorded by dynamic mechanical analyzer (DMA). And the water sorption and solubility of cured samples were detected according to ISO 4049. RESULTS Both the double bond conversion and the rate of polymerization of the resin mixtures increased as increasing the concentration of EGDPM but were lower than that of ethyl-4-dimethylaminobenzoate (EDMAB) and 2-(dimethylamine)ethyl methacrylate (DMEM) as a coinitiator at some concentration. When it served as diluent, the final double bond conversion was comparable to that of EDMAB, and the rate of polymerization was higher than that of DMEM. The modulus and T(g) of the cured samples were very close. Water sorption and solubility of the samples were almost the same except that of EGDPM as diluent. CONCLUSIONS EGDPM was synthesized by Michael-Addition reaction. It could be used as a potential coinitiator but not suitable as diluent for dental composite.
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Affiliation(s)
- Gangqiang Wu
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, PR China
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Wu GQ, Shi SQ, Xiao P, Nie J. Synthesis and photopolymerization of ethylene glycol 3-morpholine-propionate methacrylate for potential dental composite application. J Appl Polym Sci 2006. [DOI: 10.1002/app.25057] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Ropponen J, Tuuttila T, Lahtinen M, Nummelin S, Rissanen K. Thermal and X-ray powder diffraction studies of aliphatic polyester dendrimers. ACTA ACUST UNITED AC 2004. [DOI: 10.1002/pola.20367] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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