title: Intraligamentary--intraosseous anesthesia. A radiographic demonstration.
abstract: Intraligamentary dental anesthesia has become a widely accepted technique. The periodontal ligament seems to provide easy access to the tooth apex. In the present study, radiopaque material was injected into baboon monkeys. Serial radiographs during incremental injections showed clouding of the crestal bone. The material was seen gradually advancing through the alveolar bone crest, apically. The spread was noticed through the marrow spaces, unexpectedly avoiding the PDL route.
mesh_terms: D000539:Alveolar Process / Q000000981:diagnostic imaging* / Q000378:metabolism; D000766:Anesthesia, Dental / Q000379:methods*; D000772:Anesthesia, Local / Q000379:methods*; D000818:Animals; D001853:Bone Marrow / Q000378:metabolism; D003287:Contrast Media / Q000008:administration & dosage / Q000378:metabolism; D010215:Papio; D010513:Periodontal Ligament / Q000000981:diagnostic imaging* / Q000378:metabolism; D011859:Radiography
chemical_list: D003287:Contrast Media