page image
page image Start Page page image Index page image Glossary of Terms page image Performance Tools page image
page image
Cranial Nerve V
page image
page image page image page image page image
page image page image
page image
page image
Testing Procedures - Jaw Reflex

The clinician gently holds the patient’s chin against the radial side of their second digit from below and against their ventral thumb from the front. The examiner's thumb should be placed over the middle of the chin with the distal phalanx positioned in the skin crease between the lip and tip of the chin, as pictured below. In this position, the clinician asks the patient to slightly open his or her mouth, and with the patient's jaw relaxed, the clinician taps his or her thumb using the reflex hammer, rather than tapping directly on the patient's chin. Document normal or abnormal responses.

 

 

Special Instructions or Considerations

  • The reflex is both palpated and visually observed by the examiner
  • The test should be repeated several times
page image
Section: Cranial Nerve V
page image
Page 5 of 10
page image