Cytotoxic effects of halogen- and light-emitting diode-cured compomers on human pulp fibroblasts.
OBJECTIVE
The aim of this study was to determine the cytotoxic effects of three different compomers (Dyract AP, Compoglass, and Hytac) cured using a halogen light-curing unit (LCU) and a light-emitting diode (LED) LCU on human pulp fibroblasts.


METHODS
Specimens of three compomers were added to human pulp fibroblast cultures. Cytotoxicity was evaluated over 96 h using the agar overlay method.


RESULTS
All three compomers tested were found to be moderately cytotoxic to human pulp fibroblasts, regardless of whether they were cured using halogen or LED LCUs. The decolorization zone of Hytac was significantly larger than those of the other compomers tested (P < 0.05). Dyract AP and Compoglass specimens showed greater decolorization when cured with LED than with halogen LCUs (P < 0.05).


CONCLUSIONS
Compomers are potentially toxic to human pulp fibroblasts, and the type of curing unit may affect compomer toxicity.
Tunç
Emine Sen
ES
Department of Pediatric Dentistry, Faculty of Dentistry, University of Ondokuz Mayis, Samsun, Turkey. etunc@omu.edu.tr
Ozer
Levent
L
Sari
Saziye
S
Cetiner
Serap
S
D018929:Cell Culture Techniques; D002470:Cell Survival; D002478:Cells, Cultured; D004396:Coloring Agents; D020770:Compomers / Q000528:radiation effects / Q000633:toxicity*; D003188:Composite Resins / Q000528:radiation effects / Q000633:toxicity; D055117:Curing Lights, Dental / Q000145:classification*; D003764:Dental Materials / Q000528:radiation effects / Q000633:toxicity*; D005347:Fibroblasts / Q000187:drug effects*; D005840:Gentian Violet; D005899:Glass Ionomer Cements / Q000528:radiation effects / Q000633:toxicity; D006801:Humans; D008422:Materials Testing; D013997:Time Factors
D004396:Coloring Agents; C105428:Compoglass; D020770:Compomers; D003188:Composite Resins; D003764:Dental Materials; C088486:Dyract; D005899:Glass Ionomer Cements; C105429:hytac; D005840:Gentian Violet