Back gums inflamed
Inflammation behind the last molar can come from plaque, a partially erupted wisdom tooth, or an infection that needs examination.
The short answer
Inflammation behind the last molar can come from plaque, a partially erupted wisdom tooth, or an infection that needs examination. Food trapped under a gum flap can irritate the tissue and allow bacteria to multiply.
What is the direct answer?
What does this question mean?
The tissue behind a back tooth may be the attached gum, the movable gum over a wisdom tooth, or the lining around a periodontal pocket. Redness, swelling, tenderness, bleeding, bad taste, and reduced mouth opening help distinguish local irritation from a spreading dental infection.
What can you do next?
Gently clean the area with a soft brush and rinse with warm salt water while arranging an examination. Do not cut the gum flap, squeeze swelling, or place aspirin directly on the tissue; a dentist may irrigate the area, remove trapped debris, treat decay, or assess the wisdom tooth.
When should you seek dental care?
Arrange dental care if swelling persists, recurs, bleeds easily, or produces pus or a bad taste. Seek urgent help for facial swelling, fever, worsening pain, difficulty opening the mouth, swallowing, or breathing.
What should you ask the dentist?
Ask whether the inflammation is caused by a wisdom tooth, gum disease, decay, or an abscess, and whether an X-ray is needed. Ask which cleaning method is suitable and whether the tooth needs monitoring, restoration, gum treatment, or removal.
Frequently asked questions
Can an inflamed back gum heal by itself?
Mild irritation may settle after careful cleaning, but repeated or worsening swelling can indicate a tooth or gum problem that needs treatment.
Why does the gum behind my wisdom tooth swell?
A gum flap over a partly erupted tooth can trap food and bacteria, causing localized inflammation known as pericoronitis.