Gap in my lower teeth. Image attached. How to fix this?

[Du_deleted]

Hi all,
I recently see a gap in my lower tooth(front left). I never had that before. How to fix this?
I had few fillings 8 months back and I have some issues in that still. Is that issue cause any gap in the other teeth? Please help.
How do I fix this gap?

 

[stefenmoore]

You can go for Braces or Invisalign accordingly. According to me Aligners are the best option as they can fix widely spaced or over crowded teeth easily. Moreover these are invisible, have no diet restrictions and are easy to maintain.