Over time, plaque can harden into tartar, which cannot be brushed away at home. A professional clean removes it from the surfaces of your teeth and along the gumline.
The visit usually starts with a quick look at your teeth and gums. The clinician then cleans away plaque and tartar and finishes with a polish, which leaves your teeth feeling smooth.
Some people notice mild sensitivity afterwards. If you have concerns about sensitivity or bleeding gums, mention them at the start of your appointment so your dentist can advise you.