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[Principles and methods of rehabilitation of patients with occupational voice disorders].

During recent years, voice disorders continued to hold the first position on the list of occupational diseases in Poland. Teachers constitute the largest group of persons whose profession is associated with a strong vocal effort. In 2003, 1100 new cases of voice disorders were diagnosed (approx. 25% of all occupational diseases), reflecting the poor health status of persons with a voice-dependent profession (Data of the Institute of Occupational Medicine in Łódź). Due to specific conditions of work in the education sector, voice emission deteriorates after several or more years as teacher. The situation differs in singers, who rarely suffer from voice disorders thanks to special properties of their voice organ, as well as to many years of training and perfecting of voice emission techniques.