These are the most common toothache causes:
Toothache cause — Dental caries
Also called tooth decay. It represents the destruction of the outer surface (enamel) of a tooth. Decay results from th READ MORE http://worldental.org/teeth/most-common-toothache-causes/
Toothache occurs from inflammation of the central portion of the tooth called pulp. The pulp contains nerve endings that are very sensitive to pain. Inflammation to the pulp or pulpitis may be caused READ MORE http://www.emedicinehealth.com/toothache/page2_em.htm
A common cause of toothache could originate from a number sources, but mainly from any of the following: dental cavities, gum disease, tooth root sensitivities, cracked tooth syndrome, impaction and e READ MORE http://www.tackling-toothache.com/Cause-of-Toothache.html