Abstract Objectives This study compared the oral health status between elderly individuals with and without cognitive impairment and explored the association of oral health and activities of daily living (ADL) with cognitive impairment. Methods We conducted convenience sampling on patients aged more than 65 years and analysed data from 630 participants. Data were collected and analysed via a survey evaluating general characteristics, oral health behaviour, subjective oral health status, Oral Health Impact Profile (OHIP‐14), Geriatric Oral Health Assessment Index (GOHAI) and ADL. Results The path analysis and regression analysis of the association of oral health and ADL with cognitive impairment showed that the OHIP‐14 was not significantly associated with cognitive impairment, whereas the GOHAI and ADL had significant associations with cognitive impairment. A 1‐point increase in the GOHAI was associated with a 0.024‐point increase in the cognitive impairment score, and a 1‐point increase in the ADL was associated with a 0.006‐point decrease in the cognitive impairment score (normal = 0, cognitive impairment = 1). Conclusions Poor oral health and ADL were associated with cognitive impairment. Therefore, oral hygiene management is important in maintaining oral health in elderly individuals with cognitive impairment.
We investigated the use of thermally treated polydimethylsiloxane (PDMS) for chemically-resistant microchannels. When the PDMS underwent the thermal treatment at 300 °C, swelling was reduced and the surface of the PDMS microfluidic channel endured well in the extracting media such as dichloromethane. Furthermore, despite the small decrease in size after thermal treatment, both the channel shape and transparency were maintained without showing fluid leakage. The thermally treated PDMS had more hydrophilic properties compared to the untreated PDMS. A single step post-casting process described in this work does not require complex chemical treatments or introduction of foreign materials to the host PDMS substrate, thus expanding the application area of PDMS-based microfluidics.
We aimed to develop a dental radiation protection guideline for patients and dental personnel through a questionnaire on safety management in dentists, radiological technologists and dental hygienists at dental institutions. The survey of dental institutions was conducted and statistically assessed. In the image receptor system of intraoral radiograph, film-based type (11.3%), DR type (34.9%), and panoramic radiograph of film-based type (8.3%) and DR type (22.1%) were included. Genital protector (92.9%), thyroid gland protector (65.4%), lead gloves and lead glasses (95.4%), and shielding devices (0.7%) were not used. Based on the results of the study, exposure protection apparatus, patient’s image acquisition by licensed radiologists, and reduction of exposure levels by dental personnel are needed, in order to achieve safety in dental examinations. Radiation protection and safety management at dental institutions was insufficient, and dental personnel should utilize current radiation safety management guideline and continuing education to enable dose management.
Objectives : The purpose of this study was to investigate influential factors for the use of oral hygiene supplies with a view to give the right directions for related oral health education. Methods : Subjects were recruited in dental clinics in Seoul and Gyeonggi Province. Questionnaire data were carried out from June 1 to August 31, 2012. Results : 1. The awareness towards oral hygiene supplies revealed a mean of $5.46{\pm}3.87$ out of 14 points. Familiarity with the oral hygiene supplies was $2.62{\pm}2.66$ and that of oral hygiene supplies was $2.63{\pm}1.48$. 2. A regression analysis showed that by selecting the use of oral hygiene supplies as a dependent variable and the model turned out to make an 8.1% prediction. Among the selected independent variables, familiarity with the use of oral hygiene supplies revealed a statistically significant influence on the use of oral hygiene supplies that was a dependent variable(p<0.000). Conclusions : Awareness of oral hygiene supplies didn't have a lot of impact on the use of the supplies. It is important to motivate learners to make use of oral hygiene supplies in case of oral health education.
Abstract Background Using the database of the National Health Insurance Service–National Sample Cohort (NHIS–NSC), we aimed to assess the relationship between the prevalence of rheumatoid arthritis (RA) and periodontitis. Methods Participants aged ≥19 years with a previous health check‐up at the NHIS between 2009 and 2015 were selected. In total, 559,280 participants were included after implementing appropriate exclusion criteria. The Chi‐squared test was used to compare the general and health‐related characteristics of participants with and without RA or periodontitis. Univariate and multivariate logistic regression analyses with consecutive adjustment for confounders, were used to assess the association between the prevalence of rheumatoid arthritis and periodontitis. Results The prevalence of rheumatoid arthritis in patients with and without periodontitis was 6.2% and 5.2%, respectively. The prevalence of periodontitis in patients with and without rheumatoid arthritis was 19.6% and 16.6%, respectively. The possibility of having rheumatoid arthritis was greater in patients with periodontitis than in individuals without periodontitis (odds ratio [OR]; 1.22, P <0.001), and remained high (OR; 1.07, P <0.001) after adjusting for confounders. Conclusion Our results revealed a significant association between the prevalence of rheumatoid arthritis and periodontitis.
Objectives : The purpose of this study was to examine what image dental hygiene students had about a dental hygienist during clinical practice and what factors affected their image of dental hygienist. Methods : The subjects in this study were the dental hygiene students at three different colleges. After a survey was conducted, the answer sheets from 427 respondents were analyzed. Results : The dental hygiene students who had engaged in clinical practice had a higher self-esteem than those who hadn't in general(p<0.01). A statistically significantly stronger achievement motivation was found among the dental hygiene students who had engaged in clinical practice than those who hadn't(p<0.01). The dental hygiene students who had engaged in clinical practice had a statistically significantly worse image of a dental hygienist than the others who hadn't(p<0.01). Whether the self-efficacy, self-esteem and achievement motivation of the dental hygiene students had any impact on their image of a dental hygienist was analyzed in consideration of their clinical practice experience. As a result, the dental hygiene students who had engaged in clinical practice had a more positive image of a dental hygienist when they had a higher self-esteem(p<0.05) and a stronger achievement motivation(p<0.001), and those who hadn't engaged in clinical practice had a more positive image of a dental hygienist when they had a higher self-esteem(p<0.01). Conclusions : Given the above-mentioned findings, a wide variety of programs should be developed to bolster the self-esteem and achievement motivation of students and improve their image of a dental hygienist, as self-esteem and achievement motivation are the variables that exert the largest influence on one's image of a dental hygienist.
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