I have a gummy smile. How long do I need to notice any change?

 It will likely take 5 to 7 days before your Botox starts working, don't pass any judgment on its final effect until at least 14 days. 

It can take up to two weeks to see your final result from Botox injections. Most patients begin to see some effect five to seven days after treatment. The effects will gradually wear off typically over three to four months.

Botox
does not work immediately. It will take 3-5 days for it to start working
and it will have max effect 7 days after injection.  It is normal that you do not appreciate a change at this time. I hope this helps.

Thank you for your
question in regards to botox and your gummy smile. Botox can take up to 7-10 days for full correction. After this point is i best to have a follow up appointment with the provider who performed your botox injections to assess if more botox is needed. To be sure, see two
or more board-certified providers in your area for a complete evaluation to
make sure you are a good candidate and that it is safe for you to have
treatment.

I hope this helps.

Typically Botox will take 1-2 days to show an effect, and you will experience the complete effect in 1 week.  By the end of this week you should notice that your gums do not show as much while you smile.  It is always possible to add a little additional dosage at that point as needed to titrate the effect.