DAVIS THOMAS, BDS,DDS,MSD
    Practice in General Dentistry and Orofacial Pain Management

Norwood Dental Associates
200 Norwood Avenue, Oakhurst, NJ 07755

Phone: (732) 663-1200
Fax: (732) 663-1222


Silver Ridge Dental
569 Lakehurst Road, Toms River, NJ 08755

Phone: (732) 914-0500        
Fax: (732) 914-8788
 

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TMJ ANATOMY

The temporomandibular joint or TMJ is a “loose-fitting”, rotating and sliding joint with a fibrocartilage covered, football shaped ball (condyle), fibrous pad (disc), fibrocartilage lined socket (fossa), ligaments, tendons, blood vessels and nerves.  The disc functions as a moving shock absorber and stabilizer between the condyle and fossa.  As the jaw opens, normally the condyle first rotates and then slides forward within the fossa with the disc between the condyle and the fossa.

NORMAL TMJ - MOUTH CLOSED

OPEN MOUTH

NORMAL TMJ - OPEN MOUTH

THE MUSCLES OF MASTICATION (jaw muscles) attach to the mandible (lower jaw), maxilla (upper jaw), skull and neck.  The muscles of mastication open, close, protrude and laterally move the jaw, enabling you to talk, chew, and swallow.  The supporting muscles of mastication (neck and shoulder girdle muscles) stabilize the skull on the neck during jaw function.

 

This page was updated on July 19, 2011


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