you need to consult a dentist. he will check for any decayed tooth. if yes, it will need to be treated or removed as per the case. if the swelling still persists, you need to consult a neurophysician.
Yes and no.
The tooth ache may be related if its a severe dentoalveolar abscess putting pressure on your mandibular nerve (assuming its your lower posterior tooth).
The nerve compression can cause pain and swelling sometimes paraesthesia.
Secondly it could not be related .
More importantly tooth ache cannot cause any brain numbness.
Check with your doctor if u are suffering from Trigeminal Neuralgia.
Better to hurry and not wait till symptoms worsen.
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