PMID- 20046478 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20110714 LR - 20211020 IS - 1305-7464 (Electronic) IS - 1305-7456 (Print) VI - 4 IP - 1 DP - 2010 Jan TI - Monomer Release from Resin Based Dental Materials Cured With LED and Halogen Lights. PG - 34-40 AB - OBJECTIVES: To measure the release of TEGDMA and BisGMA from two commercially available composite resins; Filtek Z 250 (3M ESPE, Germany), Leaddent (Leaddent, Germany) and two fissure sealants; Helioseal F (3M ESPE, Germany) Enamel Loc (Premiere Rev, USA) over 1, 3 and 7 days after polymerization with standard quartz-tungsten halogen Coltolux II (QHL) (Coltene Switzerland) and a standard blue light emitting diode Elipar Freelight 2 (3M ESPE, Germany). METHODS: 9 samples of each material were placed in disc shaped specimens in 1 mm of thickness and 10 mm in diameter (n=36). Each material was polymerized using LED for 20 s (n=12), 40 s (n=12) and halogen for 40 s (n=12), respectively. High Performance Liquid Chromatography (HPLC) was used to measure the amount of monomers released over 1, 3 and 7 days. Data was analyzed using one way ANOVA and Bonferroni test for multiple comparisons with a significance level of .05. RESULTS: LED 20 sec group showed the highest release of monomers at 1, 3 and 7 days in sealant groups. Halogen 40 sec group resulted highest release of monomers for Leaddent at all time intervals (P<.05) CONCLUSIONS: Efficiency of the curing unit and applying the recommended curing time of the light activated resin based dental materials is very important to protect the patient from potential hazards of residual monomers. FAU - Ak, Asli Topaloglu AU - Ak AT AD - Research Assistant, Ege University, School of Dentistry, Department of Paediatric Dentistry, Izmir, Turkey. FAU - Alpoz, A Riza AU - Alpoz AR FAU - Bayraktar, Oguz AU - Bayraktar O FAU - Ertugrul, Fahinur AU - Ertugrul F LA - eng PT - Journal Article PL - Germany TA - Eur J Dent JT - European journal of dentistry JID - 101303672 PMC - PMC2798788 OTO - NOTNLM OT - BisGMA OT - Composite resin OT - Fissure sealant OT - Residual monomer OT - TEGDMA EDAT- 2010/01/05 06:00 MHDA- 2010/01/05 06:01 PMCR- 2010/01/01 CRDT- 2010/01/05 06:00 PHST- 2010/01/05 06:00 [entrez] PHST- 2010/01/05 06:00 [pubmed] PHST- 2010/01/05 06:01 [medline] PHST- 2010/01/01 00:00 [pmc-release] AID - dent04_p0034 [pii] PST - ppublish SO - Eur J Dent. 2010 Jan;4(1):34-40.