Photon undulatory non-linear conversion diagnostic method for caries detection: a pilot study.

Objective: The objective of this study was to evaluate a new optical method - photon undulatory non-linear conversion (PNC)--for use in different stages of caries detection.

Background Data: Caries should be considered an infectious disease managed by risk assessment, early detection, and preventive therapies, rather than simply "drilling and filling."

Material And Methods: Fluorescence emission spectroscopy was performed in vitro on 90 extracted teeth, with intact occlusal surfaces.

[Municipal sewage treatment plants as sources of environmental air pollution].

Municipal sewage works as sources of ambient air pollution were studied. Mechanical cleaning catch frames, primary settlers, aero-tanks, and sludge sites are the major air pollution sources. The most important air pollutants are ammonia and hydrogen sulfide.

[Problem in the diagnosis of anaerobic infections and dysbacteriosis in clinical dentistry].

The fluorescence technique was proposed for rapid diagnosis of anaerobic infection. It determines the microbiocenosis of a wound, the gastrointestinal tract, maxillofacial region, and other pathologically changed organs and tissues. The technique allows one to follow the time course of changes in the microflora and in the pathological process during the treatment and follow-up of a patient.

[Current possibilities and prospects of using gas lasers in medicine. Laser therapy].

Local laser radiation of human organism for therapeutical purposes can be looked upon as an efficient and controlled method of normalization of functioning of a number of organs. Laser units designed on the basis of industrial gas lasers are used on a large scale for treatment of vascular diseases and related ischemias in various parts of the human body.