Mouth ulcers Mouth ulcers are painful round or oval sores that form in the mouth, most often on the inside of the cheeks or lips. They're usually white, red, yellow or grey in colour and are inflamed (red and swollen) around the edge.
Dry mouth It's normal to occasionally have a dry mouth if you’re dehydrated or feeling nervous, but a persistently dry mouth can be a sign of an underlying problem. You should see your dentist or GP if you have an unusually dry mouth (known as xerostomia) so they can try to determine the cause.
Dentures (false teeth) Dentures are removable false teeth made of acrylic (plastic), nylon or metal. They fit snugly over the gums to replace missing teeth and eliminate potential problems caused by gaps. Gaps left by missing teeth can cause problems with eating and speech, and teeth either side of the gap may grow into the space at an angle.
Gum disease Gum disease is a very common condition where the gums become swollen, sore or infected. It's estimated to affect more than half of all adults in the UK to some degree and most people experience it at least once. It is much less common in children.