Floss is helpful in removing the food particles stuck in the tooth contacts (i.e. on the sides)
However, if there are hard deposits on the teeth, cleaning either superficial or deep will be required.
Based on your oral hygiene, cleaning can be done every 6 months or once a year
Next Steps
consult the dentist online or offline with pictures
Health Tips
proper brushing technique needs to be followed.
along with brushing twice daily and change of toothbrush every 3 months, max usage upto 6 months only if the bristles haven't frayed.