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dc.creatorDurey, K.
dc.creatorSantini, Ario
dc.creatorMiletić, Vesna
dc.date.accessioned2020-07-02T12:17:01Z
dc.date.available2020-07-02T12:17:01Z
dc.date.issued2008
dc.identifier.issn1355-7610
dc.identifier.urihttp://smile.stomf.bg.ac.rs/handle/123456789/1382
dc.description.abstractAIMS: The purpose of the present study was to measure the intrapulpal temperature rise occurring during polymerisation of different shades of resin-based composites (RBCs), and two light-emitting diode (LED) units. METHODS: Seventy non-carious permanent molars, that had been extracted for orthodontic purposes and stored in 2% thymol for not more than four months, were selected. Patient age range was 11-18 years. Standard cavity preparation with standardised remaining dentine thickness and placement of thermocouples (TCs) was prepared using a novel split-tooth technique. Cavities were filled with one of two shades of RBC (A2 and C4, Filtek Z250, 3M ESPE, Seefeld, Germany), and cured with two LED high-intensity units (Elipar Freelight2, 3M ESPE, Seefeld, Germany; Bluephase, Ivoclar Vivadent, Schaan, Liechtenstein) and a conventional halogen light-curing unit (LCU) (Prismetics Lite 2, Dentsply, Weybridge, Surrey, UK) as a control. RESULTS: Pulp temperature rises during bonding [A2 results: H;2.67/0.48:E;5.24/1.32;B;5.99/1.61] were always greater than during RBC curing [A2 results: 2.44/0.63;E3.34/0.70;B3.38/0.60], and these were significant for both LED lights but not for the halogen control, irrespective of shade (Mann-Whitney test: 95% confidence limits). Temperature rises were at times in excess of the values normally quoted as causing irreversible pulp damage. Pulp temperature rises during bonding were higher with the LED lights than with the halogen control. There was no significant difference in temperature rise between the two LED lights when bonding but there was a significant difference between the two LED lights and the halogen control LCUs (Kruskal-Wallis Test: 95% confidence limits). CONCLUSIONS: The results support the view that there is a potential risk for heat-induced pulpal injury when light-curing RBCs. The risk is greater during bonding and with high energy, as compared to low-energy output systems. As the extent of tolerable thermal trauma by the pulp tissues is unknown, care and consideration should be given to the choice of LCU and the exposure time when curing RBCs, and especially during bonding.en
dc.rightsrestrictedAccess
dc.sourcePrimary Dental Care : Journal of the Faculty of General Dental Practitioners (UK)
dc.titlePulp chamber temperature rise during curing of resin-based composites with different light-curing unitsen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractСантини, Aрио; Дуреy, К.; Милетић, Весна;
dc.citation.volume15
dc.citation.issue1
dc.citation.spage33
dc.citation.epage38
dc.citation.other15(1): 33-38
dc.identifier.doi10.1308/135576108783328409
dc.identifier.pmid18198059
dc.identifier.scopus2-s2.0-40949101909
dc.identifier.rcubconv_3767
dc.type.versionpublishedVersion


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