Temporal search persistence, certainty, and source preference in dentistry: Results from the National Dental PBRN.

OBJECTIVES: The primary goal of this paper was to investigate an old question in a new way: what are the search patterns that professionals demonstrate when faced with a specific knowledge gap? METHODS: We examine data from a cascading survey question design that captures details about searching for information to answer a self-nominated clinical question from 1027 dental professionals enrolled in the National Dental Practice Based Research Network. Descriptive and conditional logistical regression analysis techniques were used. RESULTS: 61% of professionals in our sample choose informal sources of information, with only about 11% looking to formal peer reviewed evidence. The numbers of professionals turning to general internet searches is more than twice as high as any other information source other than professional colleagues. Dentists with advanced training and specialists are significantly more likely to consult peer-reviewed sources, and women in the sample were more likely than men to continue searching past a first source. CONCLUSIONS: Speed/availability of information may be just as, or in some cases, more important than credibility for professionals' search behavior. Additionally, our findings suggest that more insights are needed into how various categories of professionals within a profession seek information differently.

Widespread use of National Academies consensus reports by the American public.

In seeking to understand how to protect the public information sphere from corruption, researchers understandably focus on dysfunction. However, parts of the public information ecosystem function very well, and understanding this as well will help in protecting and developing existing strengths. Here, we address this gap, focusing on public engagement with high-quality science-based information, consensus reports of the National Academies of Science, Engineering, and Medicine (NASEM). Attending to public use is important to justify public investment in producing and making freely available high-quality, scientifically based reports. We deploy Bidirectional Encoder Representations from Transformers (BERT), a high-performing, supervised machine learning model, to classify 1.6 million comments left by US downloaders of National Academies reports responding to a prompt asking how they intended to use the report. The results provide detailed, nationwide evidence of how the public uses open access scientifically based information. We find half of reported use to be academic-research, teaching, or studying. The other half reveals adults across the country seeking the highest-quality information to improve how they do their job, to help family members, to satisfy their curiosity, and to learn. Our results establish the existence of demand for high-quality information by the public and that such knowledge is widely deployed to improve provision of services. Knowing the importance of such information, policy makers can be encouraged to protect it.

The association between professional stratification and use of online sources: Evidence from the National Dental Practice-Based Research Network.

The use of online information sources in most professions is widespread, and well researched. Less understood is how the use of these sources vary across the strata within a single profession, and how question context affects search behaviour. Using the dental profession as a case of a highly stratified discipline, we examine search preferences for sources by professional strata among dentists in a practice-based network. Results show that variation exists in information search behaviour across professional strata of dental clinicians. This study highlights the importance of addressing information literacy across different levels of a profession. Findings also underscore that search behaviour and source preference vary with perceived question relevance.

Comparison of the accuracy of CBCT effective radiation dose information in peer-reviewed journals and dental media.

Accessible sources of clinical information have proliferated over the past decade. Although these new sources that contextualize information for practice are user friendly, there are questions about their accuracy because much of the material is not peer reviewed. On the other hand, traditional peer-reviewed material can be somewhat removed from the needs of practicing dentists, and recently questions have been raised about the accuracy of journals. This study assessed the accuracy of cone beam computed tomography (CBCT) radiation safety information in both professional media and peer-reviewed journals. Articles introducing CBCT technology to dentists and published in peer-reviewed journals were compared to articles appearing in professional magazines, clinically oriented news sites, and blogs written by clinicians for clinicians. The reported radiation doses of CBCT and conventional dental radiographs were recorded, as were conclusions about the comparative doses of these 2 imaging modalities. The proportion of articles reporting CBCT dose to be greater than, equal to, or less than that of conventional dental radiographs was not different between the peer-reviewed and professional media articles during the period 2003-2016. There is weak evidence that the conclusions of peer-reviewed journal articles, but not professional media sources, became more conservative after the 2010 publication of an article in The New York Times that was critical of misinformation concerning the safety and efficacy of CBCT in dentistry. Professional media articles that were not peer reviewed were as accurate as peer-reviewed journals for this topic and during the time period assessed. However, the method used here necessitated a narrow focus, and more studies are needed to broaden understanding.

Preferences for peer-reviewed versus other publication sources: a survey of general dentists in the National Dental PBRN.

BACKGROUND: Medical professionals have access to a broad range of resources to address clinical information needs. While much attention is given to new sources of data such as those available on the internet, it is less clear how clinicians choose between peer-reviewed research literature and other publication-based sources. This analysis distinguishes between possible drivers of publication type preference (namely, practice setting, advanced training, professional development experiences). Dentists enrolled in the National Dental Practice-Based Research Network (PBRN) are the population for this study. Theories of human and intellectual capital and institutional logics theory are used to understand how advanced training and other clinical experiences may explain the choices that dentists make when faced with clinical questions. METHODS: An online questionnaire was implemented with general dentists in the US National Dental PBRN. A series of logistic and Ordinary Least Squares (OLS) regression models were used to explain the use of peer-reviewed and other publications. Measures of knowledge-based human capital distinctions (advanced clinical training and research engagement, advanced professional status, personal motivation for professional advancement) were used to explain preferences for research literature as a clinical resource. RESULTS: General dentists with advanced training, as well as those with a skill advancement motivation, show a preference for peer-reviewed materials. General dentists who have been practicing longer tend to favor other dental publications, preferring those sources as a resource when faced with clinical challenges. Human capital and professional motivation distinguish the information preferences among general dentists. Further, these factors explain more variance in use of peer-reviewed materials than practice setting does. Few differences by demographic groups were evident. CONCLUSIONS: Results point to a distinct variation in the general dentistry professional community. Advanced training among general dentists, as well as the types of procedures typically conducted in their practice, distinguishes their information preferences from other general dentists, including those with more years of clinical experience.

A characterization of professional media and its links to research.

The publishing industry is a vast system whose elements form a metaphorical ecosystem with knowledge flowing through connections between heterogeneous elements. In this paper we seek a more robust understanding of different types of literature, and whether and how they support one another in the diffusion of knowledge. We analyze a corpus comprising professional electronic media in US dentistry and its relation to the peer reviewed journal literature. Our corpus includes full text from magazines, news sites and blogs that provide information to clinicians. We find links to research are made through several mechanisms: articles describing new clinical guidelines, referencing, summaries of recently published journal articles and crossover authoring. There is little to no apparent time lag in the diffusion of information from research literature to professional media.

Missed Opportunities for Detecting Alternative Nicotine Product Use in Youth: Data From the National Dental Practice-Based Research Network.

PURPOSE: With growing rates of youth e-cigarette and hookah use, and the fact that use of these products is difficult to detect, surveillance and early detection efforts need to be reassessed. Physicians and pediatricians both report that their level of knowledge about these products is low. Given that over 80% of youth have had dental visits in the past year and that the effects of nicotine use are visible early in routine dental examinations, it is likely that dental professionals are well positioned to play a critical role in detection. Currently, the knowledge about alternative nicotine among practicing dental clinicians is unknown. METHODS: One thousand seven hundred and twenty-two dental professionals in community practice in the United States National Dental Practice-Based Research Network responded to a survey in the summer/fall of 2016. These data were supplemented with network membership enrollment data, and the American Community Survey, and were analyzed using descriptive statistics, measures of association, and logistic regression. RESULTS: Only 25%-36% of dental professionals feel knowledgeable about the most common types of alternative nicotine products, including e-cigarettes and hookahs. Thirty-eight percent of respondents reported not screening at all for e-cigarettes. CONCLUSIONS: A substantial percentage of dental professionals do not have a working understanding of alternative nicotine products, nor are aware of their patients' use rates. Better access to information and training on alternative nicotine products could provide an opportunity to improve surveillance for early use of these products in youth populations.

The unbearable emptiness of tweeting-About journal articles.

Enthusiasm for using Twitter as a source of data in the social sciences extends to measuring the impact of research with Twitter data being a key component in the new altmetrics approach. In this paper, we examine tweets containing links to research articles in the field of dentistry to assess the extent to which tweeting about scientific papers signifies engagement with, attention to, or consumption of scientific literature. The main goal is to better comprehend the role Twitter plays in scholarly communication and the potential value of tweet counts as traces of broader engagement with scientific literature. In particular, the pattern of tweeting to the top ten most tweeted scientific dental articles and of tweeting by accounts is examined. The ideal that tweeting about scholarly articles represents curating and informing about state-of-the-art appears not to be realized in practice. We see much presumably human tweeting almost entirely mechanical and devoid of original thought, no evidence of conversation, tweets generated by monomania, duplicate tweeting from many accounts under centralized professional management and tweets generated by bots. Some accounts exemplify the ideal, but they represent less than 10% of tweets. Therefore, any conclusions drawn from twitter data is swamped by the mechanical nature of the bulk of tweeting behavior. In light of these results, we discuss the compatibility of Twitter with the research enterprise as well as some of the financial incentives behind these patterns.

Dental Blogs, Podcasts, and Associated Social Media: Descriptive Mapping and Analysis.

BACKGROUND: Studies of social media in both medicine and dentistry have largely focused on the value of social media for marketing to and communicating with patients and for clinical education. There is limited evidence of how dental clinicians contribute to and use social media to disseminate and access information relevant to clinical care. OBJECTIVE: The purpose of this study was to inventory and assess the entry, growth, sources, and content of clinically relevant social media in dentistry. METHODS: We developed an inventory of blogs, podcasts, videos, and associated social media disseminating clinical information to dentists. We assessed hosts' media activity in terms of their combinations of modalities, entry and exit dates, frequency of posting, types of content posted, and size of audience. RESULTS: Our study showed that clinically relevant information is posted by dentists and hygienists on social media. Clinically relevant information was provided in 89 blogs and podcasts, and topic analysis showed motives for blogging by host type: 55% (49 hosts) were practicing dentists or hygienists, followed by consultants (27 hosts, 30%), media including publishers and discussion board hosts (8 hosts, 9%), and professional organizations and corporations. CONCLUSIONS: We demonstrated the participation of and potential for practicing dentists and hygienists to use social media to share clinical and other information with practicing colleagues. There is a clear audience for these social media sites, suggesting a changing mode of information diffusion in dentistry. This study was a first effort to fill the gap in understanding the nature and potential role of social media in clinical dentistry.

Making Homes Healthy: International Code Council Processes and Patterns.

CONTEXT: Americans spend more than 90% of their time indoors, so it is important that homes are healthy environments. Yet many homes contribute to preventable illnesses via poor air quality, pests, safety hazards, and others. Efforts have been made to promote healthy housing through code changes, but results have been mixed. In support of such efforts, we analyzed International Code Council's (ICC) building code change process to uncover patterns of content and context that may contribute to successful adoptions of model codes. OBJECTIVE: Discover patterns of facilitators and barriers to code amendments proposals. DESIGN: Mixed methods study of ICC records of past code change proposals. N = 2660. SETTING: N/A. PARTICIPANTS: N/A. MAIN OUTCOME MEASURE(S): There were 4 possible outcomes for each code proposal studied: accepted as submitted, accepted as modified, accepted as modified by public comment, and denied. RESULTS: We found numerous correlates for final adoption of model codes proposed to the ICC. The number of proponents listed on a proposal was inversely correlated with success. Organizations that submitted more than 15 proposals had a higher chance of success than those that submitted fewer than 15. Proposals submitted by federal agencies correlated with a higher chance of success. Public comments in favor of a proposal correlated with an increased chance of success, while negative public comment had an even stronger negative correlation. CONCLUSIONS: To increase the chance of success, public health officials should submit their code changes through internal ICC committees or a federal agency, limit the number of cosponsors of the proposal, work with (or become) an active proposal submitter, and encourage public comment in favor of passage through their broader coalition.

Science communication. Comment on "Quantifying long-term scientific impact".

Wang et al. (Reports, 4 October 2013, p. 127) claimed high prediction power for their model of citation dynamics. We replicate their analysis but find discouraging results: 14.75% papers are estimated with unreasonably large µ (>5) and λ (>10) and correspondingly enormous prediction errors. The prediction power is even worse than simply using short-term citations to approximate long-term citations.