[Halitosis--Part 2: Diagnosis and therapy].

Halitosis may be diagnosed organoleptically or instrumentally. The latter method employs gas chromatography, sulphide monitors or electronic noses. Therapy is strictly cause-related. Non-oral causes must be examined by a specialist in accordance with the diagnosed syndrome. Where oral causes prevail, the therapy focuses on a reduction of microorganisms and the bacterial nutrient supply as well as the conversion of VSC into non-volatile sulphur compounds and, if required, the additional application of oral cosmetics.