Hello,
This gap is because of the infection of gums & the supporting structure called periodontium .
Next Steps
visit dentist for oral prophylaxis if. e professional cleaning by the dentist under antibiotic coverage, if possible. Otherwise you can consult online through Practo for the same.
Health Tips
maintenance of oral hygiene is important by following proper brushing technique with toothpaste & ultrasoft toothbrush twice daily on a regular basis.
Thanks!