Biomedical subjects
Publications and source records attributed to S E Farish.
A case of acetaminophen overdose in a patient presenting with a mandible fracture is presented to illustrate the clinical scenario, pathophysiology, and treatment of acute toxicity with this commonly used over-the-counter medication.
Explore the source record for details and available documents.
According to the American College of Surgeons, complex oral surgical procedures, including the transoral placement of endosseous implants, are of the type that may require prophylactic antibiotics. However, the routine use of prophylactic antibiotics in the field of dental implantology continues to be controversial, and their utilization varies widely. No data from a randomized prospective clinical study of the prophylactic use of antibiotics in implant surgery have been previously published. As part of the comprehensive Dental Implant Clinical Research Group clinical implant study, the preoperative or postoperative use of antibiotics, the type used, and the duration of coverage was left to the discretion of the surgeon. These data were recorded and correlated with failure of osseointegration during healing (stage I) and at stage II surgery (uncovering). The results showed that significantly fewer failures occurred when preoperative antibiotics were used.
Failure rates at second-stage surgery were reported for the ongoing Dental Implant Clinical Research Group studies of the Spectra-System (Core-Vent Corporation, Las Vegas, NV) implants. As of May 1995, 69 implants failed out of 2,633 placed and uncovered. The overall failure rate was 2.6%, with 3.6% in bone quality 1 (BQ-1), 2.4% in BQ-2, 2.5% in BQ-3, and 3.1% in BQ-4. HA-coated cylinders had the lowest number of failures and titanium alloy baskets the highest. The basket design failed more often in the posterior jaw areas; 9 of 32 clinical centers (28%) accounted for 72% of these failures.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
A mass removed from a 68-year-old patient was misdiagnosed as a benign squamous epithelial cyst. The lesion actually represented an odontogenic keratocyst. The patient had no sign of the basal cell nevus syndrome. After 12 months, there has been no recurrence.
Explore the source record for details and available documents.
Peripheral ameloblastoma (PA) is a rare odontogenic tumor. Previously, only 39 cases of PA had been reported in the English literature. In this article 11 additional cases of PA are presented. Concordance with previous cases was evident with regard to race, clinical appearance, and site of predilection. However, differences were observed with regard to age, sex distribution, and predominant histologic pattern. The average age in the current cases is younger, there is no male bias, and the most common histologic pattern is plexiform rather than follicular or acanthomatous. Recurrence following simple excision is rare, but has been reported. Long-term postoperative follow-up is recommended.
A case of thromboangiitis obliterans (Buerger's disease) showing vascular lesions in the oral cavity is presented. To our knowledge, this is the first report of involvement of branches of the external carotid artery with this disease. The clinical, radiographic, plethysmographic, and histologic features of Buerger's disease are presented. Etiologic factors, pathogenesis, and treatment modalities are discussed.
A case is reported in which mandibular swelling and lower lip numbness were the first signs of a metastatic adenocarcinoma of the lung. The development of paresthesia, with or without other oral symptoms, requires that a diagnosis of malignancy be considered until confirmed or ruled out by tissue biopsy. A thorough head and neck examination in all patients, especially in those whose history or habits may indicate increased risk of malignancy is necessary.
Iatrogenic problems may occur in the treatment of implant patients. Hopefully implant screws can be placed parallel to each other, but there are situations where they are not, because of operator error or the configuration of the alveolar ridge. The technique presented will assist in the prosthetic management of unparallel screw implants.
Several modifications of instrumentation and technique are offered to improve the ease of application of TPS screws and enhance the success of the technique.
Stretching of 25-gauge stainless steel wire causes alterations in the physical properties of the wire. The yield strength and ultimate tensile strength are increased and the elasticity is decreased. These alterations make stretched wire more satisfactory for maxillofacial surgical applications than unstretched wire.
Explore the source record for details and available documents.