Abstract: A dental instrument comprising a metal shaft having a resilient extension at one end and a further functionally closely related instrument such as a periodontal probe or mirror at the other end. The resilient extension has two deformable surfaces which can be pressed against a tooth to test its mobility. The periodontal probe is color-coded, so that the depth to which the projection has been inserted into the gingival sulcus and any existing periodontal pocket is readily apparent to the dentist. The dental instrument can include a percussive hammer adjacent the resilient section.