Tooth resorption

Root resorption
Post traumatic External tooth resorption 9
Specialty	Dentistry
Symptoms	Dark tooth discoloration, swollen gums, chip tooth
Complications	Tooth loss, infection[1]
Types	External (most common), internal[2]
Causes	Trauma, idiopathic
Risk factors	Trauma, orthodontics[3]
Diagnostic method	Dental examination, X-rays
Treatment	Dental crowns, tooth extraction, gum surgery

Resorption of the root of the tooth, or root resorption, is the progressive loss of dentin and cementum by the action of odontoclasts.^[4] Root resorption is a normal physiological process that occurs in the exfoliation of the primary dentition. However, pathological root resorption occurs in the permanent or secondary dentition and sometimes in the primary dentition.