Browsing by Author "Lodhi, Tariq Abbas"

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    Surface hardness of different shades and types of resin composite cured with a high power led light curing unit
    (University of the Western Cape, 2006) Lodhi, Tariq Abbas; Strydom, C.; Osman, Yusuf I.; Dept. of Restorative Dentistry; Faculty of Dentistry
    Light-emitting diode (LED) curing lights were introduced to the dental market promising a higher curing efficiency than halogen-based lights. The earlier generation curing lights, however, proved not to be as effective as halogen lights. As a result 3M ESPE introduced a new high-powered LED curing light, the Elipar FreeLight 2, that delivers a greater irradiance. and threfore greater energy density than its precursor. Due to these changes, the light's manufacturer claims that the FreeLight 2 can cure resin composites at half of their recommended curing time. The aim of this study was to compare the effectiveness of cure when a FreeLight 2 was used to sure composite samples at 100% and at 50% of the recommended curing time.