domingo, 2 de agosto de 2020

Diagnosis of temporomandibular joint (TMJ) ankylosis in children


Temporomandibular joint (TMJ) ankylosis is a disabling condition of mastication in which the condylar movement is limited by a mechanical problem in the joint (true ankylosis) or a mechanical cause not related to the joint components (false ankylosis).

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In children, trauma is identifi ed as the main cause of TMJ ankylosis (57-63%). The other etiological factors are infections, rheumatoid arthritis, hypoparathyroidism, psoriasis, and burns.


Ankylosis in children can have a tremendous effect on physical and psychological well-being due to restricted mouth opening, inability to chew food, and poor oral hygiene. Due to growth deformity, the child may become shy and reclusive and have a low self-esteem. Trauma to TMJ in early childhood can affect the growth potential of the mandible.


Any traumatic injury to the joint, if left unnoticed and untreated immediately can cause loss of growth and function resulting in muscle and bone atrophy and subsequently micrognathia, microgenia, and retrognathia.

Shetty, Priya & Thomas, Ann & Sowmya, Bhykani. (2014). Diagnosis of temporomandibular joint (TMJ) ankylosis in children. Journal of the Indian Society of Pedodontics and Preventive Dentistry. 32. 266-70. 10.4103/0970-4388.135848.

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