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Poster Presentation

New crosslinking diluents for dental materials

Sunday (01.01.2040)
00:00 - 08:22
Part of:
Line-Up:
- Poster Presentation The European user access program nanoscience foundries and fine analysis (NFFA) 0 Dr.-Ing. Thomas F. Keller
- Poster Presentation Sarcoma osteogenic-like Saos-2 cells on the silica nanofibres coated with nanodiamond 1 Marie Steinerova
- Poster Presentation Sputtered, micro structured freestanding FeMn foils as biodegradable material 0 Till Jurgeleit
- Poster Presentation Exploring the effects of organic components on the degradation of magnesium in vitro under physiological conditions 1 Ph.D. Ruiqing Hou
- Poster Presentation Influence of laser treatment on the corrosion behavior of Mg-1Zn-1Ca and Mg-3Zn-0.3Ca alloys 1 Ph.D. Nuria Pulido González
- Poster Presentation PLA based CaCO3 composite fibers for textile scaffolds in hard tissue regeneration 1 Dr.-Ing. Claudia Hinüber
- Poster Presentation Functionalization of polymer fibers with heparan sulfate as a representative of the extracellular matrix 1 Inga Wille
- Poster Presentation Development and Characterization of Hybrid Hydrogel Based on Oxidized Alginate and Keratin for Tissue Engineering Applications 0 Supachai Reakasame
- Poster Presentation Nir Laser-responsive Folate-targeted Gold Nanorods As Efficient theranostic tool for Osteosarcoma Treatment 1 Ph.D. Nicol? Mauro
- Poster Presentation Mechanical properties of recent CAD/CAM polymer materials 1 Sebastian Spintzyk
- Poster Presentation Multilayers of Nanoparticles with Alginate, Chondroitin sulfate and Hyaluronic acid for graded implants 1 Steffen Sydow
- Poster Presentation Design of drug eluting ophthalmic lenses through a multi-layer approach 1 Dr. Ana Topete
- Poster Presentation Drug loaded silicon based soft contact lenses: effect of terminal sterilization methods on their performance 1 Andreia Sofia Oliveira
- Poster Presentation Investigating the compressibility of spray dried alumina-zirconia granules for use in orthopaedics - an easy to use and fast method 1 Dr. Ranko Adjiski
- Poster Presentation Biochemical modification of extruded protein nanofibers 1 Karsten Stapelfeldt
- Poster Presentation Microfibers and Nanoparticles with Controlled Dimensions of a Hyaluronic Acid Derivative 1 Ph.D. Calogero Fiorica
- Poster Presentation Modeling the Viscosity of Silicone Rubber During High-Speed Infrared Curing 1 Jan Stieghorst
- Poster Presentation Effect of the pH of bleaching H2O2 solutions in the enamel morphology, hardness and color 1 Dr. Ana Topete
- Poster Presentation New crosslinking diluents for dental materials 1 Prof. Dr. Norbert Moszner
- Poster Presentation Microstructure and Properties of Plasma Sprayed Bioactive Glass Ceramics Coatings 1 Annamária Dobrádi
- Poster Presentation Impact of chloride ions on apatite mineralisation on Bioglass® 45S5 0 Juliane Brandt-Slowik
- Poster Presentation In vivo performance of polymeric photodynamic active biomaterials for periodontal regeneration 1 Dr. Stefan Kranz
- Poster Presentation Adjusted material-cell interaction using engineered spider silk proteins 1 Vanessa Trossmann
- Poster Presentation Cellular interactions with extruded protein nanofibers 1 Naiana Suter
- Poster Presentation Antimicrobial efficacy of strontium and zinc glasses and glass ionomer cements against clinically relevant bacteria 0 Hawshan Mustafa
- Poster Presentation Mechanical properties of water-soluble polyvinyl alcohol parts fabricated by fused deposition modelling 1 Jochen Kuttig
- Poster Presentation Corrosion behavior of dental CoCr alloys made by different digital workflow processes compared to cast CoCr alloys 0 Christine Schille
- Poster Presentation Mechanical properties of biocompatible polymer-based resin for dental applications fabricated by stereolithography 1 Phan Hai-Binh Bui

Session P.2: Poster Session 2
Belongs to:
Topic P: Postersession


Tooth-shaded dental restorations are becoming more and more popular. Currently used dental restorative materials are visible-light curing hybrid materials consisting of a resin matrix, which is a mixture of various free radical crosslinking dimethacrylates such as Bis-GMA (2,2-bis[4-(2-hydroxy-3-methacryloyloxypropyl)phenyl]propane) and TEGDMA (triethylene glycol dimethacrylate) as diluent. TEGDMA shows a relative high cytotoxicity and water solubility, and may cause dose-dependent mutagenic effects in mammalian cell cultures.

In this context, we synthesized new crosslinking monomers, which may substitute diluent TEGDMA in dental resins or composites. The new synthesized monomers were characterized by spectroscopic methods. The photopolymerization behavior of the new monomers was investigated by photo-DSC using the monomolecular Ge-based photoinitiator Ivocerin® (bis-(4-methoxybenzoyl)diethylgerma¬nium). Furthermore, the synthesized crosslinker were tested in experimental dental resin or composite formulations to determine their influence on selected mechanical properties and polymerization shrinkage. Finally, the toxicological properties of the monomers were investigated.

The new synthesized monomers are colorless liquids of relatively low viscosity. Particularly, the urethane unit containing crosslinkers showed a high reactivity in the free radical photopolymerization, which is probably, caused by hydrogen bridge linkages between the urethane monomers. All new monomers formed insoluble highly crosslinked polymer networks and can be used as reactive diluent for the preparation of dental resins or composites.

 

Speaker:
Prof. Dr. Norbert Moszner
Ivoclar Vivadent AG
Additional Authors:
  • Dr. Jörg Angermann
    Ivoclar Vivadent AG
  • Urs Fischer
    Ivoclar Vivadent AG