Hello mam....   There is so many treatment option for gap closure....   If the gap is less than 2 mm then you need to go for cosmetic fillings like composites, crowns and veneers.... If the gap is more thn 2 mm then orthodontic braces treatment can be done.... Lingual braces, invisalign can also be done which is more esthetic......

Invisalign is an ideal option in your case as it has the advantage of being virtually invisible! What's more - it's also happens to be speedy, very predictable and a permanent long term solution to your problem. Analysing the cause of the problem is extremely important so as to be able to address it correctly.

Consult a dentist to first diagnose the cause of the gaps. Treatment varies from braces or Invisalign or cosmetic treatments like veneers etc