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Degree of conversion and monomer elution of CQ/amine and TPO adhesives
dc.creator | Pongprueksa, Pong | |
dc.creator | Miletić, Vesna | |
dc.creator | Janssens, Henriette | |
dc.creator | Van Landuyt, Kirsten L. | |
dc.creator | de Munck, Jan | |
dc.creator | Godderis, Lode | |
dc.creator | Van Meerbeek, Bart | |
dc.date.accessioned | 2020-07-02T12:48:35Z | |
dc.date.available | 2020-07-02T12:48:35Z | |
dc.date.issued | 2014 | |
dc.identifier.issn | 0109-5641 | |
dc.identifier.uri | https://smile.stomf.bg.ac.rs/handle/123456789/1861 | |
dc.description.abstract | Objective. To evaluate the effect of photo-initiator on the degree of conversion (DC) and elution of Bis-GMA and HEMA for 8 one-step adhesive formulations. Methods. We used Scotchbond Universal ('SBU-CQ/amine 4.0', 3M ESPE), containing about 2 wt% camphorquinone (CQ) and 2 wt% ethyl-4-dimethylamino benzoate( EDMAB), an experimental 'SBU-TPO 2.1' version, containing 2.1 wt% diphenyl(2,4,6-trimethylbenzoyl) phosphine oxide (TPO), and 6 experimental LUB adhesives (Kuraray Noritake), namely 'LUB-CQ/amine 0.7', 'LUB-CQ/amine 1.4', 'LUB-CQ/amine 4.0', 'LUBTPO 0.35', 'LUB-TPO 0.7' and 'LUB-TPO 2.0', respectively containing 0.35 wt% CQ and 0.35 wt% EDMAB, 0.7 wt% CQ and 0.7 wt% EDMAB, 2.0 wt% CQ and 2.0 wt% EDMAB, 0.35 wt% TPO, 0.7 wt% TPO, and 2.0 wt% TPO. DC was measured using micro-Raman spectroscopy. Additional specimens were immersed in ethanol for 24 h to determine the elution of Bis-GMA and HEMA using HPLC. Results. DC of the respective SBU and LUB adhesives was alike at high photo-initiator concentration. At low concentration, TPO was significantly more efficient than CQ/amine (LUB adhesives only). A statistically significant positive photo-initiator concentration effect on DC was noted for both CQ/amine and TPO (LUB adhesives only). A statistically significant inversephoto-initiator concentration effect on HEMA elution was noted for both the CQ/amine and TPO-containing LUB adhesives. A significantly strong correlation was found between DC and Bis-GMA elution (R-2 = 0.744, p = 0.026), and between DC and HEMA elution (R-2 = 0.913, p = 0.002) for the LUB adhesives. Significance. The photo-initiator kind and concentration affect DC and the Bis-GMA/HEMAelution. TPO can be used as an alternative photo-initiator for CQ/amine. | en |
dc.publisher | Elsevier Sci Ltd, Oxford | |
dc.relation | Research Foundation-Flanders (FWO)FWO [G.0496.10] | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172007/RS// | |
dc.rights | restrictedAccess | |
dc.source | Dental Materials | |
dc.subject | CQ/amine | en |
dc.subject | TPO | en |
dc.subject | Degree of conversion | en |
dc.subject | Monomer elution | en |
dc.subject | Bis-GMA | en |
dc.subject | HEMA | en |
dc.title | Degree of conversion and monomer elution of CQ/amine and TPO adhesives | en |
dc.type | article | |
dc.rights.license | ARR | |
dcterms.abstract | Годдерис, Лоде; де Мунцк, Јан; Ван Меербеек, Барт; Понгпруекса, Понг; Милетић, Весна; Ван Ландуyт, Кирстен Л.; Јанссенс, Хенриетте; | |
dc.citation.volume | 30 | |
dc.citation.issue | 6 | |
dc.citation.spage | 695 | |
dc.citation.epage | 701 | |
dc.citation.other | 30(6): 695-701 | |
dc.citation.rank | aM21 | |
dc.identifier.wos | 000335924300013 | |
dc.identifier.doi | 10.1016/j.dental.2014.03.007 | |
dc.identifier.pmid | 24735999 | |
dc.identifier.scopus | 2-s2.0-84900812507 | |
dc.type.version | publishedVersion |