Chemical stability of orthodontic adhesives based on polymer network depending on external environment’s temperature
In the present study the authors assessed chemical stability of four light-cured orthodontic adhesives: Contec LC, Transbond XT, Transbond Plus, Resilience, with respect to temperature of the external environment. Polymerized samples of orthodontic adhesives were treated with pH 7 phosphate-citrate...
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| Format: | Article |
| Language: | English |
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Industrial Chemistry Institute
2019-02-01
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| Series: | Polimery |
| Subjects: | |
| Online Access: | https://ichp.vot.pl/index.php/p/article/view/110/98 |
| _version_ | 1797258473433464832 |
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| author | Dorota Kuśmierczyk Jadwiga Turło Piotr Podsadni Konrad Małkiewicz |
| author_facet | Dorota Kuśmierczyk Jadwiga Turło Piotr Podsadni Konrad Małkiewicz |
| author_sort | Dorota Kuśmierczyk |
| collection | DOAJ |
| description | In the present study the authors assessed chemical stability of four light-cured orthodontic adhesives: Contec LC, Transbond XT, Transbond Plus, Resilience, with respect to temperature of the external environment. Polymerized samples of orthodontic adhesives were treated with pH 7 phosphate-citrate buffer solutions based on HPLC-grade water at 20, 36 and 50 °C. After 1 hour, 24 hours and 7 days of sample incubation, the obtained eluates were analyzed using the high performance liquid chromatography method (HPLC) which confirmed the presence of triethylene glycol dimethacrylate (TEGDMA) monomer in solutions obtained after incubation of Contec LC, Resilience and Transbond XT samples. The presence of ethylene glycol dimethacrylate (EGDMA) monomer was also detected in eluates obtained from the Resilience adhesive. The eluates obtained after storage of Transbond Plus adhesive system were free of the sought substances. TEGDMA monomer concentrations were highest in the eluates obtained after 1 hour of incubation, the lowest after 7 days of storage of orthodontic adhesive samples, regardless of the temperature of the phosphate-citrate buffer. In addition, there were statistically significant differences in concentrations of monomers depending on the tested adhesive system. The rate of degradation of orthodontic adhesives based on a polymer network may also be adversely affected by an increase in ambient temperature. |
| first_indexed | 2024-04-24T22:54:06Z |
| format | Article |
| id | doaj.art-c33691ab548b434db81deeccf4d6e0f8 |
| institution | Directory Open Access Journal |
| issn | 0032-2725 |
| language | English |
| last_indexed | 2024-04-24T22:54:06Z |
| publishDate | 2019-02-01 |
| publisher | Industrial Chemistry Institute |
| record_format | Article |
| series | Polimery |
| spelling | doaj.art-c33691ab548b434db81deeccf4d6e0f82024-03-18T10:18:09ZengIndustrial Chemistry InstitutePolimery0032-27252019-02-01642111118dx.doi.org/10.14314/polimery.2019.2.4Chemical stability of orthodontic adhesives based on polymer network depending on external environment’s temperatureDorota Kuśmierczyk0https://orcid.org/0000-0003-3880-6045Jadwiga Turło1https://orcid.org/0000-0003-3575-8631Piotr Podsadni2https://orcid.org/0000-0003-4377-202XKonrad Małkiewicz3https://orcid.org/0000-0002-1831-0491Medical University of Warsaw, Department of Orthodontics, Nowogrodzka 59, 02-006 Warsaw, PolandMedical University of Warsaw, Department of Drug Technology of Pharmaceutical Biotechnology, Banacha 1, 02-097 Warsaw, PolandMedical University of Warsaw, Department of Drug Technology of Pharmaceutical Biotechnology, Banacha 1, 02-097 Warsaw, PolandMedical University of Lodz, Department of Orthodontics, Pomorska 251, 92-213 Łódź, Poland In the present study the authors assessed chemical stability of four light-cured orthodontic adhesives: Contec LC, Transbond XT, Transbond Plus, Resilience, with respect to temperature of the external environment. Polymerized samples of orthodontic adhesives were treated with pH 7 phosphate-citrate buffer solutions based on HPLC-grade water at 20, 36 and 50 °C. After 1 hour, 24 hours and 7 days of sample incubation, the obtained eluates were analyzed using the high performance liquid chromatography method (HPLC) which confirmed the presence of triethylene glycol dimethacrylate (TEGDMA) monomer in solutions obtained after incubation of Contec LC, Resilience and Transbond XT samples. The presence of ethylene glycol dimethacrylate (EGDMA) monomer was also detected in eluates obtained from the Resilience adhesive. The eluates obtained after storage of Transbond Plus adhesive system were free of the sought substances. TEGDMA monomer concentrations were highest in the eluates obtained after 1 hour of incubation, the lowest after 7 days of storage of orthodontic adhesive samples, regardless of the temperature of the phosphate-citrate buffer. In addition, there were statistically significant differences in concentrations of monomers depending on the tested adhesive system. The rate of degradation of orthodontic adhesives based on a polymer network may also be adversely affected by an increase in ambient temperature.https://ichp.vot.pl/index.php/p/article/view/110/98orthodontic adhesive systemshplcchemical stabilitymonomerstemperature |
| spellingShingle | Dorota Kuśmierczyk Jadwiga Turło Piotr Podsadni Konrad Małkiewicz Chemical stability of orthodontic adhesives based on polymer network depending on external environment’s temperature Polimery orthodontic adhesive systems hplc chemical stability monomers temperature |
| title | Chemical stability of orthodontic adhesives based on polymer network depending on external environment’s temperature |
| title_full | Chemical stability of orthodontic adhesives based on polymer network depending on external environment’s temperature |
| title_fullStr | Chemical stability of orthodontic adhesives based on polymer network depending on external environment’s temperature |
| title_full_unstemmed | Chemical stability of orthodontic adhesives based on polymer network depending on external environment’s temperature |
| title_short | Chemical stability of orthodontic adhesives based on polymer network depending on external environment’s temperature |
| title_sort | chemical stability of orthodontic adhesives based on polymer network depending on external environment s temperature |
| topic | orthodontic adhesive systems hplc chemical stability monomers temperature |
| url | https://ichp.vot.pl/index.php/p/article/view/110/98 |
| work_keys_str_mv | AT dorotakusmierczyk chemicalstabilityoforthodonticadhesivesbasedonpolymernetworkdependingonexternalenvironmentstemperature AT jadwigaturło chemicalstabilityoforthodonticadhesivesbasedonpolymernetworkdependingonexternalenvironmentstemperature AT piotrpodsadni chemicalstabilityoforthodonticadhesivesbasedonpolymernetworkdependingonexternalenvironmentstemperature AT konradmałkiewicz chemicalstabilityoforthodonticadhesivesbasedonpolymernetworkdependingonexternalenvironmentstemperature |