Assuming your question is about receding gums. There are many causes for receding gums. Depending on the severity, the treatment might vary, in case of very minor cases only a deep cleaning might allow the gums to its normal position, in case of moderate and severe cases you might need a minor surgical procedure.
Next Steps
Maintain good oral hygiene.
Health Tips
Consult a periodontist ( gum specialist ) for further opinion and management.