Gaps are increasing due to lack of oral hygiene maintainance or due to habits (eg.: tongue thrusting)
Maintain good oral hygiene. Visit dentist for ultrasonic scaling every six months.
Avoid habits if any. Use habit correction appliances if required.
Removal of wisdom tooth depends upon angle of wisdom tooth and space availability.
Next Steps
Visit dentist for clinical examination and x rays.
Health Tips
"10 Dental Commandments for Happy Teeth!" by Dr.Rashmi Bamane - https://www.practo.com/healthfeed/10-dental-commandments-for-happy-teeth-40426/post