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Biomedical subjects

R Koczorowski

Publications and source records attributed to R Koczorowski.

12 recordsLinked to original sources
PubMed2006

Impairment of the oral stereognosis in the partial anterior open bite.

The study was performed in 20 children with partial anterior open bite and in 20 children of a control group. Stereognosis was evaluated on the basis of correct recognition responses to silicone pieces of the different shapes. Pieces were put on the dorsal surface of the tongue close to its apex. It was evident that the stereognostic ability was impaired in children with anterior open bite. This ability also decreased after infiltration anaesthesia of the tongue. The study indicated that the tongue plays an important role in oral stereognosis.

Adolescent↗
PubMed1999

Evaluation of wear of selected prosthetic materials in contact with enamel and dentin.

STATEMENT OF PROBLEM: The proper choice of prosthetic materials for restoration of occlusal surfaces is important for the protection of the hard tissue of the opposing teeth and for regular functioning of the stomatognathic system. PURPOSE: This study evaluated the resistance to wear of gold, Palliag M, Dentacolor, Chromasit, and Stellon materials and the enamel and dentin of natural teeth during functional contacts in an artificial oral environment with and without an abrasion material (Al2 O3 ). MATERIAL AND METHODS: The 5 nonceramic prosthetic materials used in the restoration of occlusal surfaces of fixed partial dentures were examined in contact with enamel and dentin during a simulated masticatory process in 2 environments (with and without abrasion). Wear was evaluated by means of a special device designed for wear examination. RESULTS: The findings highlighted that the wear of nonceramic prosthetic materials in contact with enamel or dentin was similar. Dentin showed greater wear when in contact with these materials than with the enamel surface. CONCLUSION: Artificial environmental factors significantly influenced the wear of the hard tissue of teeth, especially when in contact with materials having low microhardness.

Dental Enamel↗
PubMed1997

[Nipple dysplasia and androgen syndrome].

Among 1500 patients in the reproductive age of Clinical Department of Endocrinological Gynecology in State Hospital in Warszawa, Poland estimated the correlations between the onset of benign breast disease (BBD) and the incidence of androgenic syndrome. Symptoms of the androgenic syndrome stated in cases of 191 women; 51 of them had also benign lesions of the breasts. It makes 26.9 percent women with the symptoms of androgenicity. Clinical studies have correlated mean age patients with acne, hirsutism, menstrual cycle disturbances, gain of weight (androgenic syndrome) and mean age women who have suffered both androgenicity and BBD.

Adolescent↗