Relationship between battery level and irradiance of light-curing units and their effects on the hardness of a bulk-fill composite resin.
Fernanda Harumi Oku ProchnowPatricia Valéria Manozzo KunzGisele Maria Correr NolascoMarina da Rosa KaizerCarla Castiglia GonzagaPublished in: Restorative dentistry & endodontics (2022)
Although the irradiance was different among LCUs, it decreased in half of the devices along with a reduction in battery level. In addition, the composite resin effectiveness of curing, measured by the hardness ratio, was reduced when the LCUs' battery was discharged.