Faculty Bibliography

Over fifteen percent of the global population experiences dental fear, and although evidence-based treatments exist, adoption of these treatments is almost non-existent. Informed by our prior research examining barriers to adopting face-to-face behavioral treatments in dental operatories, this study examined dentists' responses to three stepped-care Cognitive Behavioral Therapy for Dental Fear (CBT-DF) formats that use technology. All approaches offer an automated component as the first step (a mobile app) and either an in-person, virtual reality (VR), or video telehealth session as the second step. This study aims to understand which of these approaches would most likely be adopted by private practice dentists and why. Eight focus groups/solo interviews with a total of 13 private practice dentists were conducted with the aim to assess barriers and facilitators to implementing three stepped-care approaches of CBT-DF. The qualitative data obtained from these interviews was coded and analyzed according to Rogers' framework of innovation (relative advantage, compatibility, complexity, trialability, and observability). The results indicated that participants acknowledged the value of interventions to address dental fear, as they had personal experiences with fearful patients that impacted their practices. Participants responded positively to the automated component of treatment (the app) and were more wary of treatment options requiring office space and staff time (in-person VR and in-person mental health provider). The telehealth option received the most favorable response, although some doubts were expressed regarding relative efficacy and patient accountability. Thus, dissemination of an app-telehealth treatment model that allows dentists to serve as referral partners is promising, given dentists' incentives to decrease patient fear while avoiding opportunity cost (e.g., occupied chairs and staff time).

BACKGROUND/UNASSIGNED:With an estimated global prevalence rate of over 30%, dental fear is a ubiquitous public health phenomenon. Dental fear's adverse effects on patient oral health and quality of life are well established; the stresses and financial repercussions it can pose to providers are increasingly recognized. Although dental fear is highly treatable, a disseminable intervention that satisfies the needs of patients and dental care providers has yet to be realized. OBJECTIVES/UNASSIGNED:We sought to understand allied dental professionals' experiences treating patients with dental fear and their impressions of, and receptivity to, a stepped-care approach, including perceived barriers and facilitators to its adoption. METHODS/UNASSIGNED:= 49) were conducted. Focus group discussions were recorded, transcribed, and thematically analyzed. RESULTS/UNASSIGNED:Participant responses supported the need for innovation in managing dental fear in practices, and supported hygienists as likely facilitators of any new behavioral approach. Overall, participants were receptive to the idea of a stepped-care treatment approach but identified several factors (e.g., accessibility, costs, treatment credibility) that would need to be addressed for its adoption by patients and dental professionals. CONCLUSION/UNASSIGNED:A stepped-care approach to dental fear treatment has promise to meet the needs of patients and dental professionals. Potential barriers and facilitators to adoption provide a roadmap for future intervention refinement and efficacy testing.

OBJECTIVES/OBJECTIVE:Although several brief cognitive behavior therapy (CBT)-based treatments for dental fear have proven efficacious, these interventions remain largely unavailable outside of the specialty clinics in which they were developed. Leveraging technology, we sought to increase access to treatment for individuals with dental fear through the development of a mobile application (Dental FearLess). MATERIALS AND METHODS/METHODS:To assess the resonance of our app as an avenue for dental fear treatment, we conducted a study assessing the usability, feasibility, and acceptability of the beta app. Participants with moderate to severe dental fear (N = 80) completed the app and reported on the perceived usability of the mobile interface (Systems Usability Scale, SUS; α = .82) and credibility of the intervention (Credibility and Expectancy Questionnaire, CEQ; α = .88). A sub-sample of participants naïve to the app (n = 10) completed the app during a think-aloud procedure, sharing their candid thoughts and reactions while using the app, prior to reporting on usability and credibility metrics. RESULTS:Overall usability (M = 78.5, SD = 17.7) and credibility (M = 21.7, SD = 5.5) of the beta version of the app were good. The think-aloud data further corroborated the app's acceptability, while highlighting several areas for user improvement (i.e., aesthetics, navigation, engagement). CONCLUSIONS:Usability and acceptability results are promising for the viability of an accessible, feasible, self-administered intervention for dental fear. Refinements made based on user feedback have produced a clinical-trial-ready mobile application. App refinement decisions, informed by user feedback, are representative of the larger literature-that is, of the ubiquitous negotiations m-health developers must make across treatment fidelity, usability, and engagement. Implications for future research are discussed.

OBJECTIVES/OBJECTIVE:To investigate the impacts of speed and high-speed sintering on the densification, microstructure, phase composition, translucency, and flexural strength of yttria-stabilized zirconia (YSZ). METHODS:A total of 162 disc-shaped specimens (n = 18) were cold-isostatically pressed from 3YSZ (Zpex), 4YSZ (Zpex 4), and 5YSZ (Zpex Smile) powders (Tosoh Corporation) and sintered according to the following protocols: conventional (control, ∼12 h), speed (∼28 min for 3YSZ; ∼60 min for 4YSZ and 5YSZ), and high-speed (∼18 min) sintering. Dimensions of zirconia specimens after sintering and polishing (1-μm diamond grit finish) were Ø13.75 × 1 mm. Density, microstructure, phase content, translucency parameter, and biaxial flexural strength were evaluated using Archimedes', SEM, XRD, spectrophotometric, and piston-on-3-ball methods, respectively. Data were analyzed with either one-way ANOVA and Tukey's test or Kruskal-Wallis with Dunn's test (α = 0.05). RESULTS:For all YSZ compositions, conventional sintering yielded the highest density followed by speed then high-speed sintering. All sintering protocols resulted in similar strength values; however, speed and high-speed sintering protocols afforded significantly lower translucency relative to conventional sintering. XRD analysis revealed similar spectra for YSZs sintered by various protocols. The speed sintered specimens had the smallest grain size whereas the high-speed sintered 5YSZ possessed the largest grain size among all groups. SEM examination of all YSZ compositions revealed that the average pore size was an order of magnitude smaller than the average grain size. SIGNIFICANCE/CONCLUSIONS:Speed and high-speed sintering of YSZs yield similar strength but diminished density and translucency relative to their conventionally sintered counterparts.

OBJECTIVES/OBJECTIVE:U.S. and global estimates indicate that over 30% of adults fear receiving dental care, including over 20% who have visited a dentist in the last year, leading to avoidance and degraded oral and systemic health. Although evidence-based cognitive-behavioral treatments for dental fear (CBT-DF) exist, they have little impact on the millions who seek dental care annually because they are not disseminable (6 h of in-chair time, delivered only in person at a few sites). We developed a disseminable CBT-DF stepped-care treatment comprising (Step 1) a mobile-health application and, for those who remain fearful, (Step 2) a 1-h, one-on-one psychological treatment session that allows practice during exposure to the patient's most-feared stimuli. We hypothesized that the treatment would (a) be rated highly on usability and credibility and (b) result in clinically consequential (i.e., lowering fear into the 0-3 "no/low fear" zone) and statistically significant changes in global dental fear. METHOD/METHODS:Racially/ethnically diverse patients (N = 48) with moderate to severe dental fear were recruited; all completed Step 1, and n = 16 completed Step 2. RESULTS:As hypothesized, users found the stepped-care treatment highly usable, credible, and helpful. Critically, this stepped-care approach produced reductions in patients' dental fear that were both clinically consequential (with half no longer fearful) and statistically significant (d = 1.11). CONCLUSIONS:This usable, credible, stepped-care approach to dental fear treatment holds promise for liberating evidence-based CBT-DF from specialty clinics, allowing broad dissemination.

PURPOSE/OBJECTIVES/OBJECTIVE:A patient-centered care (PCC) paradigm undergirds modern dental education. PCC is particularly relevant in the management of patient dental fear. The aims of this study were three-fold: (a) to examine the preliminary psychometric properties of an author-designed survey administered to explore dental fear knowledge and perceptions, (b) to assess how 4th-year dental students regard dental fear, (c) and to investigate the relationship between students' knowledge and perceptions of dental fear and their clinical behavior. METHODS:In 2022, 4th-year dental students (N = 453) participated in a cross-sectional study. Participants completed a 16-item survey that assessed (a) knowledge and perceptions about dental fear, (b) common biases in patient fear assessment, and (c) patient management behaviors when fear is encountered. Exploratory factor analysis, descriptive statistics, and logistic regressions were run to address the study's aims. RESULTS:Exploratory factor analysis revealed three factors, with the two strongest factors pertaining to beliefs about the importance of dental fear (α = 0.87) and self-efficacy in managing fear (α = 0.74). Participants indicated that it is important to assess for dental fear and rated their self-efficacy in ability managing it as high. Ratings on both factors slightly increased the odds of engaging in routine patient screening for dental fear. Students also displayed assessment biases commonly seen among practicing dentists. CONCLUSION(S)/CONCLUSIONS:Results indicate educational gaps within the current behavioral-science training for dental students. Changes to improve advanced dental students' appreciation of their patients' dental fear are warranted.

INTRODUCTION:Beverage taxes are associated with declines in sugar-sweetened beverage sales and consumption, but few studies have evaluated the associations of these taxes with health outcomes. This study analyzed changes in dental decay after the implementation of the Philadelphia sweetened beverage tax. METHODS:Electronic dental record data were obtained on 83,260 patients living in Philadelphia and control areas from 2014 to 2019. Difference-in-differences analyses compared the number of new Decayed, Missing, and Filled Teeth with that of new Decayed, Missing, and Filled Surfaces before (January 2014-December 2016) and after (January 2019-December 2019) tax implementation in Philadelphia and control patients. Analyses were conducted in older children/adults (aged ≥15 years) and younger children (aged <15 years). Subgroup analyses stratified by Medicaid status. Analyses were conducted in 2022. RESULTS:The number of new Decayed, Missing, and Filled Teeth did not change after tax implementation in Philadelphia in panel analyses of older children/adults (difference-in-differences= -0.02, 95% CI= -0.08, 0.03) or younger children (difference-in-differences=0.07, 95% CI= -0.08, 0.23). There were similarly no post-tax changes in the number of new Decayed, Missing, and Filled Surfaces. However, in cross-sectional samples of patients on Medicaid, the number of new Decayed, Missing, and Filled Teeth was lower after tax implementation in older children/adults (difference-in-differences= -0.18, 95% CI= -0.34, -0.03; -22% decline) and younger children (difference-in-differences= -0.22, 95% CI= -0.46, 0.01; -30% decline), with similar results for number of new Decayed, Missing, and Filled Surfaces. CONCLUSIONS:The Philadelphia beverage tax was not associated with reduced tooth decay in the general population, but it was associated with reduced tooth decay in adults and children on Medicaid, suggesting potential health benefits for low-income populations.

Dental implants have become a routine component of daily dental practice and the demand for dental implants is expected to increase significantly in the future. Despite the high success rates of dental implants, failures do occur, resulting in discomfort, rampant destruction of the oral health, or painful and costly surgical replacement of a failed implant. Peri-implant diseases are inflammatory conditions affecting the soft/hard tissues surrounding a functional dental implant. Plenty of experimental evidence indicates that the accumulation of dental plaque at the soft tissue-implant interface and the subsequent local inflammatory response seems to be key in the pathogenesis of the peri-implant mucositis. Such peri-implant-soft tissue interface is less effective than natural teeth in resisting bacterial invasion, enhancing vulnerability to subsequent peri-implant disease. Furthermore, in certain individuals, it will progress to peri-implantitis, resulting in alveolar bone loss and implant failure. Although early diagnosis and accurate identification of risk factors are extremely important to effectively prevent peri-implant diseases, current systematic reviews revealed that a uniform classification and diagnostic methodology for peri-implantitis are lacking. Recent progress on fluorescence-based technology enabled rapid diagnosis of the disease and effective removal of plaques. Here, we briefly review biofilm-associated peri-implant diseases and propose a fluorescence-based approach for more accurate and objective diagnoses. A fluorescence-based diagnosis tool through headlights combined with special-filtered dental loupes may serve as a hands-free solution for both precise diagnosis and effective removal of plaque-biofilms.

BACKGROUND:Workplace violence toward health care professionals is both widespread and widely overlooked. Only 4 studies of aggression toward dentists have been published-none in the United States-with the prevalence of aggression ranging from 29% through 80%. The purpose of this study was to provide an initial estimate of rates of patient aggression in dental practices in the United States. METHODS:The authors surveyed 98 dentists recruited from the faculty and alumni network of a college of dentistry. Participants completed a confidential online survey assessing whether they had experienced any of 21 specific types of aggressive behaviors from their patients. RESULTS:Past-year aggression prevalence was 22.2%, 55.0%, and 44.4% for physical, verbal, and reputational aggression, respectively. Career prevalence was 45.5%, 74.0%, and 68.7% for physical, verbal, and reputational aggression, respectively. Rates did not differ by sex, race, ethnicity, specialty, age, years practicing, or average number of patients treated per day. CONCLUSIONS:Participants reported levels of physical, verbal, and reputational aggression at rates comparable with those of other health care professionals in the United States and abroad. Additional research with larger representative samples of dentists in the United States is necessary to confirm these prevalence estimates. Future research should also investigate predictors and outcomes of patient aggression and prevention and intervention strategies. PRACTICAL IMPLICATIONS/CONCLUSIONS:Substantial rates of patient aggression highlight the need to address this problem in dental practices. The authors discuss implications for the dental profession, including proactive steps that could be taken to reduce patient aggression in dental offices.