[The use of CO2 laser in the treatment of leukoplakia of the oral cavity]. / Zastosowanie lasera CO2 w leczeniu leukoplakii jamy ustnej.

During the period from 1992 to 1996 in the Otolaryngological Clinic of the Medical Academy in Bydgoszcz 20 patients with leucoplakia of the oral cavity were hospitalized. The treatment with the CO2 laser was used. Depending on the kind of lesion single or continuous ray of the power 6-15 W were applied. The patients were divided into 3 groups according to the kind of leucoplakia: patients with simple leucoplakia, patients with nodular leucoplakia, Patients with verrucous leucoplakia. According to the size of the leucoplakia area: lesions of 1 cm diameter, lesions of 2 cm diameter, lesions of over 2 cm diameter were differentiated. In the case of simple leucoplakia the laser ray of 5-6 W power was applied, in nodular leucoplakia 6-10 W, and in verrucous leucoplakia the power was 10-15 W. In this work the results of the 5 years observation are presented.

[Epidemiology of malignant neoplasms of the upper respiratory tract and oral cavity in the Bydgoszcz region]. / Epidemiologia nowotworów zlosliwych górnych dróg oddechowych i jamy ustnej w województwie bydgoskim.

The authors performed epidemiological analysis of malignant neoplasms of the nose, paranasal sinuses, throat, tongue, larynx and salivary glands in Bydgoszcz area. All the patients were treated in the Otolaryngological Clinic of Medical Academy in Bydgoszcz. Patient's sex, age, profession, living and environmental conditions as well as histopathological diagnosis were taken into analysis. The data were referred to various regions of Bydgoszcz province, which were elucidated on the basis of microclimate conditions, industry, soil conditions, density of the forest area, and cultivated agriculture plants. Correlations between occurrence of oral cavity and the upper respiratory tract malignant neoplasms and living conditions as well as kind of profession in different parts of Bydgoszcz province were estimated.