Dear Sir/Madam,
a few days ago at a party someone accidentally hit me in the mouth with an elbow, so my gum split above the upper incisors and the tooth became very loose. I had swelling and a swollen gum. The right incisor hurt so much that I did not eat for 3 days, and now it has begun to be very sensitive, especially when I drink colder water. The whole tooth hurts with any change in temperature. The tooth itself is not damaged and looks exactly as it did before. Is it possible that the pain comes from the injured gum if the wound is deep enough? Five days have already passed, but the pain remains. Please give me advice as soon as possible.
Thank you

Dear Sir/Madam!

The injury you described is not insignificant, so you will most likely need a dentist's help. Tooth mobility after an injury suggests several possible diagnoses:
-fracture of the tooth root in the middle or cervical third
-tooth subluxation and severe injury to the periodontal ligament, the membrane that anchors the root in the bone.
-fracture of the alveolar bone together with injury to the periodontal ligament.
In all of these cases, necrosis (death) of the dental pulp will probably occur, followed later by gangrene when bacteria colonise the dead tissue. The problem requires root canal treatment (removal of the dental pulp) and filling of the root canal with thermoplastic materials. Injury to the periodontal ligament requires immobilisation (attaching the tooth to neighbouring teeth for a period of time so that the attachment ligaments can recover or be replaced by scar tissue; the tooth becomes firm again). A root fracture in the middle third of the tooth will most likely be fatal for the tooth. Sensitivity of the tooth a few days after the injury actually gives hope that the tooth is still vital and may remain so, but it still needs to be immobilised and root canal treatment postponed until the tooth loses vitality. In this case, we recommend periodic vitality testing of the tooth and, if the pain increases, immediate root canal treatment. An X-ray will also facilitate diagnosis.
Visit a dentist.

Have a nice day.