<<Disclaimer: Verify this information before applying it to your situation.>> Rana. I have a crown that fell out. A dentist charged me $100 to glue it back in with that temporary glue, and it fell out again 2 days later ("Well, we did say it was temporary," they said) so I'm holding mine in with a denture glue, Cushion Grip. The ingredients appear to be gluten free, and I've had no reaction to it. I do wonder about denture wearers and the gf-ness of those pastes though... Linda Blanchard [log in to unmask] Midland TX USA