NUVA SEAL is:

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 Seal Failed 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.