The objective of the present study was to determine the optimal doses of ozone therapy producing the readily apparent effect on the microflora obtained from of the alveolar sockets of the extracted teeth in the patients presenting with alveolitis and focal jaw osteomyelitis. The study was carried out with the use of an ultraviolet ozone generator. The source of the ultraviolet light for this device was the BOP-01/27 apparatus. Ozone concentration at the outlet of the generator was determined with the use of a 302 PR chemiluminescent ozone analyzer (Russia) which is actually an automated continuous-action gas analyzer designed for the measurement of ozone mass concentration in the air. The performance of the ozone generator was evaluated with the help of a rotameter (an instrument for determining the volumetric flow rate of the air-ozone mixture per unit time). The cultures of microorganisms were placed on the surface of the freshly prepared agar in Petri dishes at a concentration of 1 mln cells/ml (based on the turbidity standard) using a sterile spreading rod to form the uniformly seeded bacterial lawn. The ozone current was applied to the central part of the Petri dish during 1. 2, and 3 minutes, and the effect was evaluated within 7 days after the onset of incubation of the Petri dishes in the anaerostat at a temperature of 37 degrees Celsius. A total of 51 studies were carried out. It was shown that the air-ozone mixture exerts the well-apparent antibacterial action (giving rise to growth retardation zones over 10 mm in size) on the majority of the pathogenic species of microflora from the alveolar sockets even after the exposure for only 1 minute. It is concluded that the described ozone generator makes it possible to produce ozone from the air at a concentration of 0.000261 mg/l free from nitric oxides by using the short-wavelength ultraviolet radiation. The working capacity of the generator is 2 liters of the air-ozone mixture per minute.