You have to get checked by your dentist, whether you have a high frenal attachment or not. If you do, first you have to get it corrected, and then you have to go for orthodontic treatment. If you don't have one, you can directly go for orthodontic treatment. Also, we can do composite filling in between the 2 teeth. But we have to check first whether that is a viable option or not, depending on the size and proportion of the surrounding teeth.
Next Steps
Consult with your dentist