Intraosseous and extraosseous calcifying odontogenic cyst (Gorlin cyst).

This retrospective study of 15 central and five peripheral calcifying odontogenic cysts (COCs) was undertaken to compare the characteristics of these two lesions. The data reveal that the central COCs were more common than peripheral lesions by a 3:1 ratio and that they were usually diagnosed in the second decade of life, whereas the peripheral ones were usually noted after the age of 50. Seven of the 15 central COCs (47%) were associated with odontomas, and three (20%) with dentigerous cysts.

Assessment of recovery from injury to inferior alveolar and mental nerves.

Thirty-four patients had surgery near but not transecting either the inferior alveolar nerve or mental nerve. Thermal tests revealed that between 62% and 81% of the nerves that were evaluated had sensory deficits. Sixty-seven percent of patients had abnormal intraoral and extraoral responses to fine tactile testing.

Analysis of preoperative laboratory values prior to outpatient dental anesthesia.

A retrospective study of 672 ASA Class I patients undergoing outpatient general anesthesia for oral surgical procedures was performed to evaluate the significance and incidence of abnormal preoperative serum glucose and hematocrit levels. There was an 11% overall incidence of "abnormal" values. Specifically, 6% of the patients had serum glucose levels below 60 g/dl and 5% had hematocritis less than 35 mg/dl.

Analysis of cardiovascular changes and arterial blood gases in patients resistant to methohexital anesthesia.

Two studies were done to evaluate the patient who appears to be clinically resistant to incremental methohexital infusion for general anesthesia. A retrospective study revealed that 9% of the 513 patients developed resistance to methohexital maintenance and required a volatile inhalation anesthetic supplement. The cardiovascular and arterial blood gas analysis in a prospective study failed to disclose any gross changes that would explain the physiology associated with patients resistant to methohexital anesthesia.