Can Er,Cr:YSGG Assist with Removing an All-ceramic Veneer for Replacement?｜證據鏈

This article cites only studies of all-ceramic veneer removal that explicitly identify Er,Cr:YSGG. The principle is that Er,Cr:YSGG energy at 2,780–2,790 nm passes through certain ceramics and interacts with water-containing and resin components, making the bonding interface easier to separate. Its effects are influenced by the ceramic type, thickness, translucency, adhesive, output, pulse, water setting and scanning method. All 5 core sources currently available are in vitro studies, commonly using bovine incisors, sectioned ceramic specimens and laboratory thermocouples. In a study of 57 bovine incisors, for example, mean debonding times for 0.7 mm feldspathic porcelain and medium-opacity (MO) and high-translucency (HT) lithium disilicate groups were approximately 104, 107 and 104 seconds, with no significant difference between groups. The measured rise in pulp-chamber temperature was below 1°C in every group. This can support research into mechanisms and parameters, but cannot directly promise a particular time, damage-free removal or pulpal safety in the human mouth.