PROBAR LC is a light-curing, passively adhesive resin barrier designed to protect and isolate gingival tissue exposed to the risk of irritation during clinical procedures (e.g. endodontic treatment, outpatient tooth whitening). It isolates tissues adjacent to the teeth during whitening procedures. PROBAR LC reflects polymerization light, minimizing tissue sensitivity during curing. It can be easily removed after the procedure and is colored blue for easier recognition.