Your gums shouldn’t look like they’re straining to get away from your teeth. If more and more tooth is visible from smile to smile, see a dentist about your receding or swollen, reddish gums since this may be a sign of gingivitis or gum disease.

Sores

Unusually frequent sores can be a sign of serious oral problems like oral cancer, or even the digestive condition Crohn's disease,

A canker sore usually doesn’t merit worry. Neither does a blister on the roof of your mouth that came from eating hot pizza too fast. However, you should be concerned if any sores or blisters seem unusually or conspicuously frequent.

Blisters on your cheek and painful spots on your tongue may also be a sign of Temperomandibular Jaw disorder, or TMJ, described below.

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Neck or Jaw Pain and Numbness

Pain or numbness in your neck, especially at the base of the skull, and around the jaw can also be TMJ symptoms.

TMJ can be caused by arthritis, injury, or other misalignment of the jaw bone. Usual symptoms include pain or discomfort around the neck and jaw area, while some experience discomfort in the shoulders and even the back.