What can i do to be sure i'm brushing my teeth properly?

Proper brushing and.: See your dentist who can see exactly how you brush and floss. You can demonstrate your technique in front of him\her or a dental hygienist. Your dentist can also examine your teeth and gums and know how well you have or haven't been exercising proper oral hygiene techniques.

Ask to "disclose": 1) make an appointment to see a dentist ; hygienist. 2) brush and floss as well as you can do before going to the dentist. 3) ask if your hygienist/dentist can "disclose plaque" on your teeth. This is a bright pink liquid (painted on teeth), or may come in a tablet form, which you chew ; dissolve to coat your teeth. After rinsing, see the "missed spots". 4) brush/floss the missed spots everyday!