Brain ; physiology ; History, 20th Century ; Humans ; Sleep ; physiology ; Sleep Medicine Specialty ; history ; Sleep, REM ; physiology

After more than 30 years of development, noninvasive positive pressure ventilation (NPPV) has become one of the main treatments of sleep-disordered breathing (SDB) in the world. It is the wide application of this technology that makes breakthrough in SDB treatment, and has given rise to a new interdisciplinary area sleep medicine. In China, sleep medicine started in late of 1980's, in recent years, with the development of economy and the improvement of recognization, the application of NPPV in Chinese market has become one of the fastest growing in the world. NPPV technology also extends gradually to the treatments of patients with respiratory failure due to different causes, such as severe acute respiratory syndrome and COPD.
China ; Humans ; Positive-Pressure Respiration ; Respiratory Insufficiency ; Sleep Apnea Syndromes ; therapy ; Sleep Medicine Specialty ; trends

PURPOSE: This study was performed to investigate the relationship between sleep bruxism (SB) and pulpal calcifications in young women. MATERIALS AND METHODS: A total of 100 female participants between 20 and 31 years of age who were referred to our radiology clinic for a dental check-up, including 59 SB and 41 non-SB patients, were sampled for the analysis. SB was diagnosed based on the American Academy of Sleep Medicine criteria. All teeth were evaluated on digital panoramic radiographs to detect pulpal calcifications, except third molars, teeth with root canal treatment, and teeth with root resorption. Binary logistic regression analysis was used to determine the risk factors for pulpal calcifications. The Spearman correlation coefficient was applied and the Pearson chi-square test was used for categorical variables. To test intra-examiner reproducibility, Cohen kappa analysis was applied. P values < .05 were considered to indicate statistical significance. RESULTS: A total of 2800 teeth were evaluated (1652 teeth from SB patients and 1148 from non-SB patients), and 61% of patients had at least 1 dental pulpal calcification. No statistically significant relationship was found between SB and pulpal calcifications (P>0.05). In SB patients, the total number of pulpal calcifications was 129, while in non-SB patients, it was 84. Binary logistic analysis showed that SB was not a risk factor for the presence of pulpal calcifications (odds ratio, 1.19; 95% CI, 0.52–2.69, P>.05). CONCLUSION: No relationship was found between SB and pulpal calcifications.
Dental Pulp ; Dental Pulp Calcification ; Dental Pulp Cavity ; Female ; Humans ; Logistic Models ; Molar, Third ; Radiography, Panoramic ; Risk Factors ; Root Resorption ; Sleep Bruxism ; Sleep Medicine Specialty ; Tooth