Edmund M. Kosmahl, PT, EdD

 GONIOMETRY WEB SITE


TEMPEROMANDIBULAR JOINT OPENING

Ruler Method

 TMJ opening goniometry picture

Alternate Method


TMJ Open Fingers Picture

Test Position

  • Subject sitting
  • Stabilize cervical spine
  • Open Mouth

Normal Range

  • 35 to 50 mm (Magee)
  • two and 1/2 flexed PIPs (Friedman and Weisberg)

Ruler Alignment

  • Use a ruler to measure the distance between the upper and lower incisors
  • Alternate method - have the subject flex the proximal interphalangeal joints (PIPs) of the fingers and assess how many PIPs can fit between the teeth

Normal End Feel

  • Capsular or ligamentous

copyright 1999 E. Kosmahl