Toothache is “Waja ‘ al-Asnan”. Its causes include one or more of
Impairment of the hot temperament, gum inflammation
Impairment of the cold temperament of the tooth and/or nerve.
Inflammation of the blood temperament
Phlegmatic gases
Excess Yellow Bile
Lack of oral hygiene
Indigestion
Gout
Excessive use of sweet and sour foods,
Pregnancy
Accumulation of putrefied humours in the stomach.
Treatment, based on diagnosis, is usually with the opposite.