Intraosseous injection for profound anesthesia of the lower molar.

The endodontic treatment of mandibular molars is complicated when block anesthesia is less than tolally effective. Supplemental anesthesia by infiltration gives little or no additional effect because of the thickness of the buccal or lingual bone in this area. Other methods for obtaining profound anesthesia must be attempted, unless the patient and the dentist agree to the unpleasantness of a painful treatment. In the autbor's hands, the most successful technique for obtaining supplemental anesthesia in such cases has been the intraosseous injection technique. Experience over the past six years has shown that this technique is easily learned, that the instruments are readily obtained and easy to use, and that both the patient and the operator benefit from the results.