You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is NUVA SEAL is: and explain in detail?
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.