Simple introduction of temporomandibular joint (TMJ) - 謝明吉、姜厚任 顎顏面 美學 重建 專科診所-風華整形聯合診所
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Physiology and pathology of the TMJ
Simple introduction of temporomandibular joint (TMJ)
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Simple introduction of temporomandibular joint (TMJ)

Temporomandibular joint (TMJ) is one of the smallest and most complicated joints in the human body.

Temporomandibular joint (TMJ) is one of the smallest and most complicated joints in the human body, where the craniosacral bone connects to the lower jaw (mandible). The TMJ rotates and slides to complete the mouth opening and closing, chewing, swallowing and speaking movements.

TMJ is composed of mandibular condyle and mandibular fossa; the relationship between the two is like pestle and mortar. TMJ is divided into upper and lower part by a fibrocartilage articular disc that prevents the upper and lower bone directly contacting or rubbing each other during joint movement. The whole joint (incl. articular disc) is covered by articular ligaments that form the articular cavity and function as static stabilizer of the joint to absorb stress during movement. The articular cavity is filled with synovial fluid secreted by synovial membrane. The synovial fluid provides nutrient and waste transport as well as lubricating function. TMJ is a synovial joint.
 

Temporomandibular joint (TMJ) is part of the masticatory system.
 


Temporomandibular joint (TMJ) is part of the masticatory system, a functional unit consisting of facial and jaw bones, joint, ligaments, muscles and dento-osseous structures, controlled by complicated nerve system involving in chewing, speaking and breathing functions. Clinicians shall be aware that any disorders or diseases related to TMJ should be evaluated under comprehensive examination of the whole masticatory system. Focusing on certain single anatomical parts would be improper and may easily overlook the underlying problems.

 

 

Results of surgery vary among patients. Please consult your doctor.
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Copyright © 2007-2017 

All Written Contents and Pictures Created by Dr. Adrian M. Hsieh and Dr. Scott H. Jiang

 

 

 

 

Results of surgery vary among patients. Please consult your doctor.