Background: The coronavirus disease (COVID-19) pandemic led to substantial public discussion. Understanding these discussions can help institutions, governments, and individuals navigate the pandemic. Objective: The aim of this study is to analyze discussions on Twitter related to COVID-19 and to investigate the sentiments toward COVID-19. Methods: This study applied machine learning methods in the field of artificial intelligence to analyze data collected from Twitter. Using tweets originating exclusively in the United States and written in English during the 1-month period from March 20 to April 19, 2020, the study examined COVID-19–related discussions. Social network and sentiment analyses were also conducted to determine the social network of dominant topics and whether the tweets expressed positive, neutral, or negative sentiments. Geographic analysis of the tweets was also conducted. Results: There were a total of 14,180,603 likes, 863,411 replies, 3,087,812 retweets, and 641,381 mentions in tweets during the study timeframe. Out of 902,138 tweets analyzed, sentiment analysis classified 434,254 (48.2%) tweets as having a positive sentiment, 187,042 (20.7%) as neutral, and 280,842 (31.1%) as negative. The study identified 5 dominant themes among COVID-19–related tweets: health care environment, emotional support, business economy, social change, and psychological stress. Alaska, Wyoming, New Mexico, Pennsylvania, and Florida were the states expressing the most negative sentiment while Vermont, North Dakota, Utah, Colorado, Tennessee, and North Carolina conveyed the most positive sentiment. Conclusions: This study identified 5 prevalent themes of COVID-19 discussion with sentiments ranging from positive to negative. These themes and sentiments can clarify the public’s response to COVID-19 and help officials navigate the pandemic.

This study used a national database to update and examine current differences in men's and women's oral health and oral health behaviours in the United States. Data from the National Health and Nutrition Examination Survey for the 2017-2018 cycle were used to explore the relationship between males and females and their oral health. Multivariate analyses assessed for gender differences in oral health behaviors between genders after controlling for sample demographic characteristics. The final sample consisted of 4,741 participants. Males tended to have fewer dental visits, worse perception of their gum and tooth health, poorer flossing habits, and more root caries. Females were more proactive in visiting dentists and displayed a greater awareness of oral health. Females were less likely to report discussing oral cancer screening with their dentist even though they were screened more often. On examination, males were more often advised to seek urgent dental care than females. All these differences were statistically significant at p<0.05, although the effect size for examination variables was small (Phi <0.1). Oral health and oral health behaviours demonstrate gender differences with men reporting poorer oral health, poorer oral hygiene habits, and fewer dental visits. These findings suggest gender-targeted strategies have the potential to improve oral health and reduce gender-related disparities. This study found that women exhibit better oral health practices and behaviours. These differences may cause a disproportionate burden of oral disease in men and highlight the need for dentists, hygienists, and those interested in dental public health to develop gender-specific strategies to address these inequalities.

By examining 2013 County Health Rankings and Roadmaps data from the University of Wisconsin and the Robert Wood Johnson Foundation, this paper seeks to add to the available literature on health variances between United States residents living in rural and non-rural areas. We believe this is the first study to use the Rankings data to measure rural and urban health differences across the United States and therefore highlights the national need to address shortfalls in rural healthcare and overall health. The data indicates that U.S. residents living in rural counties are generally in poorer health than their urban counterparts. We used 2013 County Health Rankings data to evaluate differences across the six domains of interest (mortality, morbidity, health behaviors, clinical care, social and economic factors, and physical environment) for rural and non-rural U.S. counties. This is a cross-sectional study employing chi-square analysis and logit regression. We found that residents living in rural U.S. counties are more likely to have poorer health outcomes along a variety of measurements that comprise the County Health Rankings’ indexed domains of health quality. These populations have statistically significantly (p ≤ 0.05) lower scores in such areas as health behavior, morbidity factors, clinical care, and the physical environment. We attribute the differences to a variety of factors including limitations in infrastructure, socioeconomic differences, insurance coverage deficiencies, and higher rates of traffic fatalities and accidents. The largest differences between rural and non-rural counties were in the indexed domains of mortality and clinical care. Our analysis revealed differences in health outcomes in the County Health Rankings’ indexed domains between rural and non-rural U.S. counties. We also describe limitations and offer commentary on the need for more uniform measurements in the classification of the terms rural and non-rural. These results can influence practitioners and policy makers in guiding future research and when deciding on funding allocation.

Purpose/Objectives: The coronavirus disease 2019 (COVID‐19) pandemic arguably represents the worst public health crisis of the 21^st century. However, no empirical study currently exists in the literature that examines the impact of the COVID‐19 pandemic on dental education. This study evaluated the impact of COVID‐19 on dental education and dental students’ experience.Methods: An anonymous online survey was administrated to professional dental students that focused on their experiences related to COVID‐19. The survey included questions about student demographics, protocols for school reopening and student perceptions of institutional responses, student concerns, and psychological impacts.Results: Among the 145 respondents, 92.4% were pre‐doctoral dental students and 7.6% were orthodontic residents; 48.2% were female and 12.6% students lived alone during the school closure due to the pandemic. Students’ age ranged from 23 to 39 years. Younger students expressed more concerns about their emotional health (P = 0.01). In terms of the school's overall response to COVID‐19, 73.1% students thought it was effective. The majority (83%) of students believed that social distancing in school can minimize the development of COVID‐19. In general, students felt that clinical education suffered after transitioning to online but responded more positively about adjustments to other online curricular components.Conclusions: The COVID‐19 pandemic significantly impacted dental education. Our findings indicate that students are experiencing increased levels of stress and feel their clinical education has suffered. Most students appear comfortable with technology adaptations for didactic curriculum and favor masks, social distancing, and liberal use of sanitizers.

Specialty board certification status is often used as a standard of excellence, but no systematic review has examined the link between certification and clinical outcomes. The authors evaluated published studies tracking clinical outcomes and certification status. Data sources consisted of studies cited between 1966 and July 1999 in OVID-Medline, psychological abstracts (PsycLit), and the Educational Research Information Clearinghouse (ERIC). Screening criteria included: only U.S. patients and physicians used as subjects; verified specialty board certification status by an American Board of Medical Specialties' (ABMS') member board using the ABMS database or derivative sources; described selection criteria for patients and physicians; selected nationally recognized standards of care for outcomes; and nested patient data by individual physician. The computerized searches that were conducted in 1999 identified 1,204 papers; one author and a research assistant selected 237 papers based on subject relevance, and reduced the list to 56 based on study quality. The authors independently applied inclusion and exclusion criteria to identify 13 of the 56 papers containing 33 separable relevant findings. Of the 33 findings, 16 demonstrated a significant positive association between certification status and positive clinical outcomes, three revealed worse outcomes for certified physicians, and 14 showed no association. Three negative findings and one finding of no association were identified in two papers with insufficient case-mix adjustments in the analyses. Meta-analytic statistics were not feasible due to variability in outcome measures across studies. Few published studies (5%) used research methods appropriate for the research question, and among the screened studies more than half support an association between board certification status and positive clinical outcomes.

Oral health’s association with general health, morbidity, and mortality in older adults highlights its importance for healthy aging. Poor oral health is not an inevitable consequence of aging, and a proactive, multidisciplinary approach to early recognition and treatment of common pathologies increases the likelihood of maintaining good oral health. Some individuals may not have regular access to a dentist, and opportunities to improve oral health may be lost if health professionals fail to appreciate the importance of oral health on overall well-being and quality of life. The authors of this narrative review examined government websites, the American Dental Association Aging and Dental Health website, and the Healthy People 2030 oral objectives and identified xerostomia, edentulism, caries, periodontitis, and oral cancer as five key topics for the non-dental provider. These conditions are associated with nutritional deficiencies, poorer quality of life, increased risk of disease development and poorer outcomes for cardiovascular disease, diabetes, and other systemic conditions prevalent among older adults. It is important to note that there is a bi-directional dimension to oral health and chronic diseases, underscoring the value of a multidisciplinary approach to maintaining oral health in older adults.