Palpation

A palpation test is performed with the forefinger applying slight pressure to the gingival and mucosal tissues overlying the root. Palpation is done in order to find increased sensitivity (tenderness), soft or hard swelling, and crepitus. As with other tests, several teeth must be inspected for comparison and reference.

Increased sensitivity to palpation at the tooth apex is a sign of apical inflammation, but a negative result does not rule out the possibility of inflammation. In most cases of apical periodontitis the palpation test is negative or only vaguely positive.