Prevalence of Dental Erosive Wear and Possible Risk Factors among Adolescents and Adults in Poland - A National Survey.

Purpose: To investigate the prevalence and severity of erosive tooth wear (ETW) and evaluate the determinants of ETW among adolescents and adults in Poland.

Materials And Methods: The study covered three age groups of patients: 15 years old, 18 years old, and adults aged 35-44 years. Calibrated examiners measured ETW according to the Basic Erosive Wear Examination (BEWE) scoring system in 6091 patients.

Theory cracks old data: Rovibrational energy levels of H-CO derived from experiment.

Measurements of rovibrational spectra of clusters provide physical insight only if spectral lines can be assigned to pairs of quantum states, and further insight is obtained if one can deduce the quantitative energy-level pattern. Both steps can be so difficult that some measured spectra remain unassigned, one example is H-CO. To extend the scope of spectroscopic insights, we propose to use theoretical information in interpretation of spectra.

New Steroidal Selenides as Proapoptotic Factors.

Cytostatic and pro-apoptotic effects of selenium steroid derivatives against HeLa cells were determined. The highest cytostatic activity was shown by derivative (GI 25.0 µM, almost complete growth inhibition after three days of culture, and over 97% of apoptotic and dead cells at 200 µM).

The association between erosive tooth wear and diet, hygiene habits and health awareness in adolescents aged 15 in Poland.

Purpose: The aim of the study was to assess the prevalence of erosive tooth wear (ETW) and risk indicators in the population of adolescents aged 15 in Poland.

Methods: Erosive tooth wear in 2639 participants was determined by calibrated examiners according to the BEWE scoring system, and the prevalence of risk factors was assessed on the basis of a survey.

Results: Erosive tooth wear was reported in 24.