Objective: To evaluate the use of autogenous maxillary bone for the repair of orbital floor defects secondary to blunt facial trauma.Design: Retrospective case series of 41 patients with a mean follow-up of 1.7 years.Setting: Major metropolitan teaching hospital.Patients: Forty-one consecutive patients who underwent repair of orbital floor fractures with maxillary antral wall bone grafts.Main Outcome Measures: Presence of diplopia, orbital dystopia, implant extrusion, enophthalmos, infection, and donor site complications.Results: On follow-up clinical examinations, none of the 41 patients presented with any evidence of orbital dystopia or complications relative to the implant or donor site. Two patients had persistent enophthalmos, and 4 had persistent infraorbital nerve paresthesia. Postoperative computed tomographic scans in 12 patients revealed an adequate maintenance of orbital volume without any evidence of resorption of the graft.
Conclusion:The use of maxillary antral wall bone for the repair of orbital floor fractures is a highly reliable technique that carries minimal morbidity.
We conducted a study to quantitatively determine the pres sure perception thresholds in the oral cavity and oropharynx of a normal population with the Pressure-Specifying Sensory Device (PSSD) . The PSSD measur ed pressure perception thresholds for both static and movin g one-and two-point discrimination moda lities at a variety ofsites in the oral cavity and oropharynx as well as in the forearm of11 adults. We also evaluated the ability ofthe PSSD to enhance sensory discrimination infour of these subjects by the pro cess of sensory re-education for 11 days over a 1S-day period. We f ound that the buccal mucosa and the tongue tip were the most sensitiv e sites in the oral cavity and oropharynx and that the flo or of the mouth and the soft palate were the least sensitiv e. Sensory discrimination in the oral cavity was enhanced in allfour subjects who underwent sensory re-education , although it returned to baseline levels over time after re-education was discontinued. The degree of intra-and intertester variability was minimal. Our data can be used as an aid in the developm ent of techniqu es to surgically restore sensation in the oral cavity and oropharynx.
Intro ductionThe normal anatomy and function of the oral cavity and oropharynx are severely compromised following ablative
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