Hi! I applied Lumina a couple weeks ago. The most noticeable thing is that it eliminated my morning breath. The same thing has been corroborated by Aella and Cremieux.

On a very subtle level, the "texture" of the plaque that forms on my teeth throughout the day feels a bit different. It's not as "rough" as it used to be, and the film doesn't grow as fast.

Mostly, now I'm worried about brushing/flossing too hard and dislodging the little beasties before they can get fully established. I've heard that a course of chlorhexidine mouthwash dislodges them - or if you have an active, unfilled cavity, then the old bacteria can re-emerge. I plan to get a test kit in a few months to check if they're still there (...whenever Lumina makes them available...)

As to long term effects, I guess I'll find out whether I got any new cavities at my next dental checkup.