Like all light-curable dental liners NeoLINER LC contains a light-cure resin component. According to AAPD guidelines, a biocompatible radiopaque material that is resin-free should be used for direct placement on the pulp since any uncured resin in direct contact with the pulp may be an irritant and can cause inflammation of the pulp. A resin-free MTA product such as NeoPUTTY or NeoMTA 2 is recommended for direct placement on the pulp due to its exceptional bioactivity and biocompatibility which is well tolerated by the pulp.