Pain gum back of mouth
Pain behind the last molar can come from an erupting wisdom tooth, inflamed gum, trapped food, decay, or infection in a nearby tooth.
What is the direct answer?
Pain behind the last molar can come from an erupting wisdom tooth, inflamed gum, trapped food, decay, or infection in a nearby tooth.
What does this question mean?
The gum behind the last molar can partly cover a wisdom tooth and collect plaque and food. This inflammation is called pericoronitis, but a cracked molar, cavity, abscess, or cheek trauma can feel similar.
What can you do next?
Brush the area gently and rinse with warm salt water without forcing anything under the gum. Do not squeeze swelling; use pain medicine only when suitable and according to its label.
When should you seek dental care?
Get urgent care for spreading swelling, fever, pus, difficulty opening the mouth, swallowing, or breathing. Arrange an examination soon if pain persists, recurs, or causes a bad taste.
What should you ask the dentist?
Is the wisdom tooth, adjacent molar, gum flap, or tooth root causing the pain, and would an X-ray alter treatment?
Frequently asked questions
Can symptoms alone confirm the cause?
No. Several dental conditions overlap, so diagnosis uses the history, examination, and imaging when indicated.
What treatment might be needed?
Brush the area gently and rinse with warm salt water without forcing anything under the gum. Do not squeeze swelling; use pain medicine only when suitable and according to its label.