Yes. There are a few options to fix a "gummy smile" and it depends on the cause. If the cause is simply extra gum tissue that covers a couple of teeth, the dentist can reshape the gum line to allow more teeth to show. Other treatments include botox and lip repositioning.
For more involved procedures like crown lengthening, your dentist may refer you to a periodontist. Talk to our cosmetic dentist for more information about "gummy smile" treatments.