口腔颌面外科学（中山大学）08级7年制--第二学期A卷答案.docxVIP

Part One1-10 BCDAD DCBCC 11-20 BBAAC BCEBDPart TwoBlock anesthesiainsensibility of a part induced by interrupting the sensory nerve conductivity of that region of the body; it may be produced by injection of anesthetics close to the appropriate nerve.Dento-maxillofacial deformitiesa congenital anomaly in which the cerebellum and medulla oblongata protrude down into the cervical spinal canal through the foramen magnum; it is almost always associated with meningomyelocele and hydrocephalus.Dry socketA painful inflamed condition at the site of extraction of a tooth that occurs when a blood clot fails to form properly or is dislodged. The most common site of dry socket is the third molar of mandible.Induction chemotherapyThe use of drug therapy as the initial treatment for patients presenting with advanced cancer that cannot be treated by other means.Le Fort II fracturePyramidal/subzygomatic fracture that produce dissociation of the central midface from the orbitozygomatic complex.It involves most of the nasal bones, the maxillary bones, the palatine bones, the lower two-thirds of the nasal septum, the dentoalveolus, and the pterygoid plates.Preprosthetic surgeryPreprosthetic surgery involves operations aiming toeliminate certain lesions or abnormalities of the hardand soft tissues of the jaws, so that the subsequentplacement of prosthetic appliances is successful.Trigeminal neuralgiaSudden severe pains of unknown cause along the path of one or more branches of the trigeminal nerve.Part ThreeAO principle of management of oral and maxillofacial fracture: a. Accurate anatomic reductionb. Atraumatic operative technique preserving the vitality of bone and soft tissuesc. Functionally stable fixation that produces a mechanically stable skeletal unitd. Avoidance of soft tissue damage and “fracture disease” by allowing early, active, pain-free mobilization of the skeletal unit Clinical manifestations of zygomatic fracturesPeriorbital, buccal, and conjunct