Root resorption .

  • Tooth root resorption is multifactorial, leading to progressive destruction and eventual loss of tooth root dentin and cement.
  • There are internal and external types of root resorption, each having its variety.
  • The most significant etiological factors for external root resorption are: trauma, pressure from impacted teeth or slow-growing tumors or cysts and orthodontic treatment.
  • Internal root resorption is a pathological phenomenon that can be characterized by loss of dentin due to osteoclasts. The most significant etiological factor is pulpal inflammation.

Case 1

External cervical invasive root resorption in 26

Case 2

External root resorption caused by impacted premolar. Images showing intimate relationship between the premolar and molar. Severe root resorption in the molar and destruction of the buccal cortex.

Case 3

External cervical root resorption in tooth 11

Case 4

Internal root resorption

Case 5

Root resorption after orthodontic treatment

Case 6

Central incisor showing external root resorption caused by impacted canine.

Case 7

Root resorption associated with orthodontic treatment.

Case 8

Male 16 years old.
In the upper jaw, 1st right premolar (14) is impacted and located in the position of the canine 13 (Transposition). Extensive internal resorption at the palatal surface of the root of the impacted premolar is observed (arrows).