High-performance photoinitiating systems for new generation dental fillings
Authors:
- Monika Topa-Skwarczyńska,
- Magdalena Jankowska,
- Alicja Gruchała-Hałat,
- Filip Petko,
- Mariusz Galek,
- Joanna Ortyl
Abstract
Objectives: To obtain new generation dental composites with improved performance properties compared to currently available dental fillings on the market and to determine the influence of new initiating systems on final product parameters such as degree of cure, hardness, color, and shrinkage. Methods: In order to verify the effectiveness of the developed initiating systems, typical spectroscopic, electrochemical, and kinetic studies using the real-time FT-IR method were shown. Moreover, paste dental fillings were prepared, the compositions were irradiated with the dental lamp, and the degrees of cross-linking were measured by Raman spectroscopy. The polymerization shrinkage was also determined using the rheometer. In addition, their hardness was examined on the Shore scale. Finally, the color analysis of the composites in the L*a*b* color space was compared with the VITA CLASSIC colorant. Results: It was shown that, due to their excellent spectroscopic and electrochemical properties, new quinazolin2-one can act as co-initiators in cationic and radical photopolymerization. It was demonstrated that the most effective composite containing the initiator system in the form of 3-SCH3Ph-Q, IOD, MDEA, and an inorganic filler as nanometric silica and a bonding agent is cured more than 90% after just 1 cycle of dental lamp exposure (30 s), the hardness of the composite after curing on the Shor Scale is 82 ± 4, and the polymerization shrinkage is less than 2.8%. Significance: The article demonstrates effective new initiator systems as an alternative to CQ/amine for obtaining new-generation dental composites. The developed dental composites are a big competition to the currently used dental fillings on the market.
- Record ID
- CUTedb02e4320084f39bbe8f1e549195d27
- Publication categories
- ;
- Author
- Journal series
- Dental Materials, ISSN 0109-5641, e-ISSN 1879-0097
- Issue year
- 2023
- Vol
- 39
- No
- 8
- Pages
- 729-742
- Other elements of collation
- fot.; rys.; tab.; wykr.; Bibliografia (na s.) - 741-742; Bibliografia (liczba pozycji) - 73; Oznaczenie streszczenia - Abstr.; Data udostępnienia on-line - 2023-06-30; Numeracja w czasopiśmie - Vol. 39, Iss. 8
- Keywords in English
- photosensitizer, cationic photopolymerization, free-radical photopolymerization, functional polymer composites, dental materials, shrinkage, visible LEDs
- ASJC Classification
- ; ;
- DOI
- DOI:10.1016/j.dental.2023.06.003 Opening in a new tab
- URL
- https://www.sciencedirect.com/science/article/pii/S0109564123001318 Opening in a new tab
- Related project
- Synteza i badania właściwości aplikacyjnych nowych wysokowydajnych systemów fotoinicjujących dedykowanych do fotoutwardzalnych kompozytów stomatologicznych nowej generacji. . Project leader at PK: , ,
Projekty finansowane przez MNiSW - Opracowanie i ocena właściwości fizykochemicznych i mechanicznych nowych fotoutwardzalnych w świetle widzialnym kompozytów polimerowych charakteryzujących się redukcją skurczu polimeryzacyjnego. . Project leader at PK: , ,
- Synteza i badania właściwości aplikacyjnych nowych wysokowydajnych systemów fotoinicjujących dedykowanych do fotoutwardzalnych kompozytów stomatologicznych nowej generacji. . Project leader at PK: , ,
- Language
- eng (en) English
- Score (nominal)
- 140
- Score source
- journalList
- Score
- Publication indicators
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTedb02e4320084f39bbe8f1e549195d27/
- URN
urn:pkr-prod:CUTedb02e4320084f39bbe8f1e549195d27
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.