<prompt> NUVA SEAL is:UV activated sealantSelf-cure sealantLight cure sealantFlouride releasing sealant  <response>: First Generation Sealants:Polymerized with UV light at a wavelength of 365 nm cyanoacrylate based material.Classified as accepted by ADA in 1976.Eg: Alpha seal, Nuva SealFailed due to:Excessively absorbed UV light-prevented complete polymerization of sealant at its depth.Inconsistency of wavelength from the UV light source.The potential for retinal damaged with long term exposure to UV light. 