Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons
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J. Oral Maxillofac. Surg. · Jan 1996
Blood loss and transfusion requirements in orthognatic surgery.
This study quantified the blood loss and transfusion requirements in orthognathic surgery. ⋯ Transfusion is not necessary for single-jaw surgery unless a bicoronal flap or iliac bone harvest are required. Although only 27% of bimaxillary osteotomy patients required transfusion of 1 to 2 units, this group was not predictable based on the type of procedure involved, and a further subgroup (4% of the 291 patients) required a larger transfusion.
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J. Oral Maxillofac. Surg. · Jan 1996
The relationship of the buccal branch of the facial nerve to the parotid duct.
This cadaver dissection studied the relationship of the buccal branch of the facial nerve to the parotid duct and its relevance to surgical procedures in this area. ⋯ The buccal branch of the facial nerve has a close relationship with the parotid gland for over 2.5 cm after it emerges from the parotid gland; it normally lies inferior to the duct. This relationship is of importance in performing parotid gland surgery, parotid duct surgery, and some facial cosmetic surgery.
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This study investigated the effect of force on drill speed and measured the energy consumed during the drilling process. ⋯ The decrease in energy suggests that drilling at high speed and with a large force may be desirable because bone temperature is reduced.