“…In this method, the IR beam penetrates the overlying ceramic block and the resin cement layer. However, it is well known that ceramic does not alter the infrared spectrum, although it does reduce the intensity, 30 and we could not find any disturbance of the IR spectrum by the ceramic interposition compared with the background spectrum.…”
For both conventional and self-adhesive dual-cure resin cements, insufficient light exposure (20 seconds of light-curing time) through thick ceramic restoration (4 mm thick) resulted in a DC even lower than that of self-curing alone.
“…In this method, the IR beam penetrates the overlying ceramic block and the resin cement layer. However, it is well known that ceramic does not alter the infrared spectrum, although it does reduce the intensity, 30 and we could not find any disturbance of the IR spectrum by the ceramic interposition compared with the background spectrum.…”
For both conventional and self-adhesive dual-cure resin cements, insufficient light exposure (20 seconds of light-curing time) through thick ceramic restoration (4 mm thick) resulted in a DC even lower than that of self-curing alone.
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