Hi. Please rinse your mouth properly after eating anything particularly soft foods because there is a deposition of an invisible transparent layer on the tooth surface which is known as plaque and it needs to be cleaned regularly.
Brush twice daily. Brushing at night time before going to bed is a must.
Visit a dentist
for Scaling / Cleaning. Scaling will remove tartar.
Do Saline Warm water rinses.
Use a mouth wash Ocassionally, don't use regularly as it will cause dry mouth
which will cause bad breath