Biomedical subjects
Publications and source records attributed to S D Garland.
Mock dentures were stabilized in six monkeys by means of polyethylene tubings passed through surgically created buccolingual peralveolar channels. Macroscopic, radiographic, and microscopic examinations demonstrated that the dentures were stabilized and the tubings well tolerated throughout the 120-day study period.
The similarities between the various conditions described are remarkable. The orbital or frontal bruit and pulsating exophthalmos are common only to the carotid-cavernous fistula. A recent history of dental treatment, of facial infection with an elevated white blood cell count, and leukocytosis suggests cavernous sinus thrombosis. The superior orbital fissure syndrome and orbital apex syndrome occur most frequently in conjuction with Le Fort II and III fractures, which can involve the optic foramen and superior orbital fissure, therefore disrupting the sensory and motor innervation to the orbit and adjacent structures (Fig 4). Direct orbital trauma without evidence of fracture and with all symptoms mentioned, except infection, bruit, and pulsating exophthalmos, suggests orbital hematoma. A thorough differential diagnosis with complete data is essential for a correct diagnosis, thereby reducing morbidity by institution of the appropriate treatment. Treatments for carotid cavernous fistula have varied over the years--all aiming toward abolition of the fistula. Currently, the preferred treatment is the supraclinoid clamping of the internal carotid artery, followed by muscle embolization of the internal carotid artery distal to the bifurcation, and clamping of the internal carotid artery in the neck.
Triamcinolone acetonide was injected into the mucobuccal fold adjacent to the surgical site where a vestibuloplasty with mucosal grafting had been performed. Macroscopically, the mucobuccal folds of the experimental group were both softer than those of the control animals and exhibited less tendency toward regression in the depth of the vestibule. Microscopic examination revealed qualitative rather than quantitative changes in collagen formation.
Intact and fenestrated full-thickness palatal mucosal grafts were placed following immediate vestibuloplasty in ten dogs of mixed breed. Macrscopic and microscopic findings indicated that the fenestrated grafts were as effective as the intact grafts in long-term maintenance of bestibular depth.