Examining the Association Between Social Needs and Care Gap Closure Among Older Adults Receiving Dental Care.

Introduction: The authors of this study sought to (1) describe the prevalence of social needs and (2) determine whether social needs were associated with closure of care gaps among patients aged ≥65 years seeking dental care. Methods: In this retrospective cross-sectional study, the authors identified 754 Kaiser Permanente Northwest patients aged ≥65 years who completed an index dental visit; had at least 1 of 23 preventive care gaps (e.g., flu vaccination) or disease management care gaps (e.g., diabetes HbA1c screening test) documented in their medical record; and had completed a social needs assessment through survey evaluating financial strain, food insecurity, housing needs, social isolation, and transportation needs. The authors described the prevalence of social needs at the index visit and then used logistic regression to evaluate the association between the number of social needs (0, 1, ≥2) and closure of all care gaps over the following 60 days (yes versus no), adjusting for patient characteristics. Identification and closure of care gap were assessed through Kaiser Permanente Northwest's Panel Support Tool. Results: Approximately 28% of patients reported ≥1 social needs. The prevalence of social needs was as follows: social isolation, 13.7%; financial strain, 11.3%; food insecurity, 7.7%; transportation needs, 5.4%; and housing needs, 3.3%. Those with 1 social need were more likely to close care gaps than those with no social needs (OR=1.82, 95% CI=1.17, 2.85). No significant association was found with care gap closure among those with ≥2 versus zero social needs. Conclusions: The prevalence of social needs was nearly 30% among patients aged ≥65 years with dental and medical coverage. Patients with 1 social need were more likely than those with no social needs to close all care gaps after their visit.

Utilizing deliberative engagement for identifying implementation strategy priorities: lessons learned from an online deliberative forum with dental professionals.

BACKGROUND: Selecting effective implementation strategies to support guideline-concordant dental care is a complex process. We are drawing on data collected during the DISGO study to reflect on barriers we encountered in implementing a deliberative engagement process for discussing implementation strategies relevant to the evidence-based guideline targeted in this intervention. The goal is to identify factors that may influence the success of deliberative engagement as a technique to involve healthcare staff in identifying priorities for implementation strategies. METHODS: We drew on online chat transcripts from the deliberative engagement forums collected during the DISGO study. The chat transcripts were automatically generated for each discussion and captured the written exchanges between participants and moderators in all participating dental clinics. Chat transcripts were analyzed following a content analysis approach. RESULTS: Our findings revealed barriers to the successful implementation of deliberative engagement in the context of the DISGO study. Participants were not familiar with the materials that had been prepared for the forum and lacked familiarity with the topic of deliberation. Participants also did not share divergent viewpoints and reinforced existing ideas rather than introducing new ideas. CONCLUSIONS: In order to ensure that obstacles that were encountered in this study are not repeated, it is important to carefully consider how staff can effectively be prepared for the deliberations. Participants must be familiar with the content of the guideline, and most questions about the content and evidence should be answered before the deliberative engagement sessions. If perspectives among staff on a guideline are homogenous, briefing materials should introduce perspectives that complement existing views among staff. It is also necessary to create an environment in which staff are comfortable introducing opinions that may not be held by the majority of colleagues. TRIAL REGISTRATION: This project is registered at ClinicalTrials.gov with ID NCT04682730. The trial was first registered on 12/18/2020. https://clinicaltrials.gov/ct2/show/NCT04682730 .

Sharing voice during deliberative engagement to improve guideline adherence in dental clinics: findings from a qualitative evaluation of an online deliberative forum discussion.

OBJECTIVES: Selecting effective implementation strategies to support guideline-concordant dental care is a complex process. For this research project, an online deliberative forum brought together staff from dental clinics to discuss the strengths and weaknesses of implementation strategies and barriers to implementation of a component of a dental (pit-and-fissure) guideline. The goal was to determine whether deliberative engagement enabled participants' sharing of promotive and prohibitive voice about implementation strategies to promote guideline-concordant care. DESIGN: Qualitative analysis of online chat transcripts of facilitated deliberations from 31 small group sessions. SETTING: Kaiser Permanente Dental (KP Dental) in the USA. PARTICIPANTS: All staff from 16 dental offices. RESULTS: The directed content analysis revealed that participants shared prohibitive and promotive voice when offering critique of the barriers and the implementation strategies suggested by the researchers. The analysis also revealed that the focus of the deliberations often was not on the aspect of the pit-and-fissure guideline intended by the research team for deliberation. CONCLUSIONS: The deliberative forum discussions were a productive venue to ask staff in dental clinics to share their perspectives on strategies to promote guideline-concordant care as well as barriers. Participants demonstrated prohibitive voice and engaged critically with the materials the research team had put together. An important limitation of the deliberation was that the discussion often centred around an aspect of the pit-and-fissure guideline that already was implemented well. To ensure a deliberation oriented towards resolving challenging aspects of the pit-and-fissure guideline, greater familiarity with the guideline would have been important, as well as more intimate knowledge of the current discrepancies in guideline-concordant care. TRIAL REGISTRATION NUMBER: This project is registered at ClinicalTrials.gov with ID NCT04682730. The trial was first registered on 18 December 2020. https://clinicaltrials.gov/ct2/show/NCT04682730.

Testing a Deliberative Democracy Engagement Intervention to Increase Guideline-Concordance Among Oral Health Providers: Results from the DISGO Cluster-Randomized, Stepped-Wedge Trial.

Background: Dental caries affects billions worldwide and in the U.S. is among the most prevalent noncommunicable diseases in both children and adults. Early in the caries process, it can be arrested by dental sealants, which are non-invasive and thus tooth sparing, however, few dentists have adopted this approach. Deliberative engagement processes enable participants to engage with diverse perspectives on a policy issue and develop and share with policy makers informed opinions about the policy issue. We examined the effects of a deliberative engagement process on the ability of oral health providers to endorse implementation interventions and to apply dental sealants. Methods: Using a stepped wedge design, 16 dental clinics were cluster randomized, and 680 providers and staff were exposed to a deliberative engagement process that included an introductory session, workbook, facilitated small group deliberative forum, and post-forum survey. Forum participants were assigned to forums to ensure diverse role representation. Mechanisms of action examined included sharing voice and diversity of opinion. Three months after each clinic's forum, the clinic manager was interviewed about implementation interventions deployed. There were 98 clinic-months in the non-intervention period and 101 clinic-months in the intervention period. Results: Compared with providers and staff in small clinics, providers and staff in medium and large clinics more strongly agreed that their clinic should adopt two of the three proposed implementation interventions targeting the first barrier and one of the two proposed implementation interventions targeting the second barrier. Compared with the non-intervention period, in the intervention period providers did not place more sealants on occlusal non-cavitated carious lesions. Survey respondents reported sharing both promotive and prohibitive voice. From the beginning to the end of the forums, most forum participants did not change their opinions about the possible implementation interventions. At the end of the forums, there was no significant within-group variability in implementation interventions endorsed. Conclusions: Deliberative engagement intervention may help clinic leadership identify implementation interventions when there is a challenging problem, a network of semi-autonomous clinics, and autonomous providers within those clinics. It remains to be determined whether there is a range of perspectives within clinics. Trial Registration: This project is registered at ClinicalTrials.gov with ID NCT04682730. The trial was first registered on 12/18/2020. https://clinicaltrials.gov/ct2/show/NCT04682730.

Dental providers' perceptions of the feasibility and acceptability of implementing vaccine administration programs in dental settings: A qualitative study.

OBJECTIVES: Involving dental offices in routine vaccinations could have a positive impact on public health. In this study, we assessed dental providers' attitudes and perceptions regarding implementing vaccination in dental settings. METHODS: We performed semi-structured interviews with 31 dental providers (25 dentists and 6 dental hygienists) enrolled in the Western region of the National Dental Practice-Based Research Network as of June 28, 2021. Interviews were recorded and transcribed. We analyzed transcripts using deductive and inductive coding approaches. RESULTS: We identified three main themes that captured the perceptions of dental practitioners regarding the feasibility of implementing vaccine administration in a dental setting: (1) dental practitioners perceive contributing to the public health mission of disease prevention as having high value, (2) dental practitioners face considerable complexity when deciding whether to implement vaccine administration, and (3) dental practitioners do not understand current laws and associated reimbursement models related to vaccine administration. CONCLUSIONS: To make vaccination commonplace in dental practices, legal changes to allow dental practitioners to administer vaccines should be followed by concrete guidance and relevant trainings to help interested dental practitioners successfully implement vaccination programs in their clinical settings.

Study protocol: A stepped-wedge, cluster-randomized trial of the effectiveness of a deliberative loop in identifying implementation strategies for the adoption of a dental sealant guideline in dental clinics.

BACKGROUND: The American Dental Association (ADA) recommends dental providers apply dental sealants to the occlusal surfaces of permanent molars for the prevention or treatment of non-cavitated dental caries. Despite the evidence-based support for this guideline, adherence among general dentists is low, ranging from less than 5 to 38.5%. Thus, an evidence-to-practice gap exists, and it is unclear which implementation strategies would best support providers in adopting and implementing the evidence-based practice. One potential approach to selecting and tailoring implementation strategies is a deliberative loop process, a stakeholder-engaged approach to decision-making. This trial aims to test the acceptability, feasibility, and effectiveness of using a deliberative loop intervention with stakeholders (i.e., providers and staff) to enable managers to select implementation strategies that facilitate the adoption of an evidence-based dental practice. METHODS: Sixteen dental clinics within Kaiser Permanente Northwest Dental will be cluster randomized to determine the timing of receiving the intervention in this stepped-wedge trial. In the three-part deliberative loop intervention, clinic stakeholders engage in the following activities: (1) receive background information, (2) participate in facilitated small-group discussions designed to promote learning from each other's lived experiences and develop informed opinions about effective clinic-level implementation strategies, and (3) share their informed opinions with clinic leaders, who may then choose to select and deploy implementation strategies based on the stakeholders' informed opinions. The primary outcome of Reach will be defined as patient-level receipt of guideline-concordant care. Secondary outcomes will include the cost-effectiveness, acceptability, and feasibility of the deliberative loop process. Implementation strategies deployed will be catalogued over time. DISCUSSION: These results will establish the extent to which the deliberative loop process can help leaders select and tailor implementation strategies with the goal of improving guideline-concordant dental care. TRIAL REGISTRATION: This project is registered at ClinicalTrials.gov with ID NCT04682730. The trial was first registered on 12/18/2020. https://clinicaltrials.gov/ct2/show/NCT04682730.

Examining the association of medical-dental integration with closure of medical care gaps among the elderly population.

BACKGROUND: The integration of medical and dental care in the dental setting offers a unique opportunity to close medical care gaps, such as providing immunizations and laboratory-based tests, compared with traditional nonintegrated settings. METHODS: We used a matched cohort study design among patients 65 years or older (n = 2,578) with an index dental visit to the Kaiser Permanente Northwest medical-dental integration (MDI) program from June 1, 2018, through December 31, 2019. MDI patients were matched 1:1 to non-MDI controls (n = 2,578) on 14 characteristics. The Kaiser Permanente Northwest MDI program focuses on closing 23 preventive (for example, flu vaccines) and disease management care gaps (for example, glycated hemoglobin testing) within the dental setting. The closure of all care gaps (yes versus no) was the outcome for the analysis. Multivariable logistic regression was used to evaluate the association between exposure to the MDI program and level of office integration (least, moderate, and most integration) with closure of care gaps. All data were obtained through Kaiser Permanente Northwest's electronic health record. RESULTS: MDI patients had significantly higher odds (odds ratio [OR], 1.46, 95% confidence interval [CI], 1.29 to 1.65) of closing all medical care gaps than non-MDI patients. Greater MDI integration was associated with significantly higher odds of gap closure compared with non-MDI (least integration: OR, 1.18, 95% CI, 1.02 to 1.37; moderate integration: OR, 1.70, 95% CI, 1.36 to 2.12; most integration: OR, 2.08, 95% CI, 1.73 to 2.50). CONCLUSIONS: Patients receiving dental care in an MDI program had higher odds of closing medical care gaps compared with similar patients receiving dental care in a non-MDI program. PRACTICAL IMPLICATIONS: MDI is effective at facilitating delivery of preventive and disease management medical services.

Evaluating the Effectiveness of Medical-Dental Integration to Close Preventive and Disease Management Care Gaps.

Background: The integration of medical care into the dental setting has been shown to facilitate the closure of care gaps among patients with unmet needs. However, little is known about whether program effectiveness varies depending on whether the care gap is related to preventive care or disease management. Materials and Methods: We used a matched cohort study design to compare closure of care gaps between patients aged 65+ who received care at a Kaiser Permanente Northwest (KPNW) Medical-Dental Integration (MDI) clinic or a non-MDI dental clinic between June 1, 2018, and December 31, 2019. The KPNW MDI program focuses on closing 12 preventive (e.g., flu vaccines) and 11 disease management care gaps (e.g., HbA1c testing) within the dental setting. Using the multivariable logistic regression, we separately analyzed care gap closure rates (yes vs. no) for patients who were overdue for: (1) preventive services only (n = 1,611), (2) disease management services only (n = 538), or (3) both types of services (n = 429), analyzing closure of each care gap type separately. All data were obtained through the electronic health record of KPNW. Results: The MDI patients had significantly higher odds of closing preventive care gaps (OR = 1.51, 95% CI = 1.30-1.75) and disease management care gaps (OR = 1.65, 95% CI = 1.27-2.15) than the non-MDI patients when they only had care gaps of one type or the other. However, no significant association was found between MDI and care gap closure when patients were overdue for both care gap types. Conclusions: Patients with care gaps related to either preventive care or disease management who received dental care in an MDI clinic had higher odds of closing these care gaps, but we found no evidence that MDI was helpful for those with both types of care gaps. Practical Implications: MDI may be an effective model for facilitating the delivery of preventive and disease management services, mainly when patients are overdue for one type of these services. Future research should examine the impact of MDI on long-term health outcomes.

Oral cancer examinations and lesion discovery as reported by U.S. general dentists: Findings from the National Dental Practice-Based Research Network.

General dentists (GDs) have the opportunity to examine their patients for oral premalignancy/malignancy. We estimated the annualized per dentist number of oral lesions suspicious for premalignancy/malignancy discovered by United States (U.S.) general dentists and the annualized per dentist number of histologically-confirmed cancers subsequently diagnosed. Eligible participants were licensed, clinically-active U.S. GDs who were members of the U.S. National Dental Practice-Based Research Network. An a priori sample size of 900 was determined; 2000 GDs were invited to participate; 1,073 completed the study. Self-reported, cross-sectional data were obtained via an online questionnaire during 4/12/2017-8/31/2017 and analyzed. The reported numbers of suspicious oral lesions and histologically-confirmed oral cancer cases diagnosed over the previous six months were quantified. Potential outcome predictors were evaluated as covariates in multivariable analyses. Crude and adjusted statistics were produced by regressing each outcome on each independent variable while assuming a Poisson distribution, log link and utilizing robust standard errors. Eighty-seven percent of dentists reported discovering 1+ lesion suspicious for oral premalignancy/malignancy during the preceding six months. The mean number of suspicious lesions/dentist/year was 9.5; adjusted mean: 9.6. Fifteen percent of participants reported discovering 1+ lesion confirmed as cancer during the same period, 213 confirmed cancer cases/6 months or 426/year. Crude and adjusted mean numbers of histologically-confirmed oral cancers were both 0.4 cancers/dentist/year. Our findings suggest that many U.S. general dentists are actively identifying oral lesions suspicious for premalignancy/malignancy, thereby aiding in the discovery of oral malignancies and representing an important component in the frontline against cancer.

Observable characteristics coincident with internal cracks in teeth: Findings from The National Dental Practice-Based Research Network.

BACKGROUND: This study determined if there are observable patient-, tooth- and crack-level characteristics markedly associated with whether a tooth with an external crack also has an internal crack. METHODS: Two hundred nine dentists in The National Dental Practice-Based Research Network enrolled 2,858 adults with a vital permanent posterior tooth having at least 1 observed external crack. Presence and characteristics of internal cracks were recorded for 435 cracked teeth that were treated. Generalized estimating equations were used to identify significant (P < .05) independent odds ratios associated with the tooth having internal cracks. RESULTS: Overall, 389 teeth (89%) had at least 1 internal crack, with 46% of these teeth having 2 or more internal cracks. Sixty-nine percent of treated cracked teeth were associated with 1 or more types of pain assessed before treatment; 53% were associated with cold testing, 37% with bite testing, and 26% with spontaneous pain. In the final model, biting pain, having an external crack that connected with a restoration, or an external crack that extended onto the root was each associated with more than a 2-fold increased odds of having an internal crack. CONCLUSIONS: Essentially 9 of 10 teeth that had at least 1 external crack also had at least 1 internal crack. PRACTICAL IMPLICATIONS: The external cracks that a dental practitioner should be most concerned about, because they are most likely to be associated with internal cracks in the tooth, are those in which the patient experiences biting pain, is connected with a restoration of some type, or extends onto the root.

Barriers to sealant guideline implementation within a multi-site managed care dental practice.

BACKGROUND: The purpose of this study was to identify barriers frequently endorsed by dentists in a large, multi-site dental practice to implementing the American Dental Association's recommendation for sealing noncavitated occlusal carious lesions as established in their 2016 pit-and-fissure sealant clinical practice guideline. Although previous research has identified barriers to using sealants perceived by dentists in private practice, barriers frequently endorsed by dentists in large, multi-site dental practices have yet to be identified. Identifying barriers for these dentists is important, because it is expected that in the future, the multi-site group practice configuration will comprise more dental practices. METHODS: We anonymously surveyed the 110 general and pediatric dentists at a multi-site dental practice in the U.S. The survey assessed potential barriers in three domains: practice environment, prevailing opinion, and knowledge and attitudes. Results were summarized using descriptive statistics. RESULTS: The response rate to the survey was 62%. The principal barrier characterizing the practice environment was concern regarding liability; endorsed by 33% of the dentists. Many barriers of prevailing opinion were frequently endorsed. These included misunderstanding the standard of practice (59%), being unaware of the expectations of opinion leaders (56%) including being unaware of the guideline itself (67%), and being unaware of what is currently being taught in dental schools (58%). Finally, barriers of knowledge and attitudes were frequently endorsed. These included having suboptimal skill in applying sealants (23% - 47%) and lacking knowledge regarding the relative efficacy of the different ways to manage noncavitated occlusal carious lesions (50%). CONCLUSIONS: We identified barriers frequently endorsed by dentists in a large, multi-site dental practice relating to the practice environment, prevailing opinion, and knowledge and attitudes. All the barriers we identified have the potential to be addressed by implementation strategies. Future studies should devise and test implementation strategies to target these barriers.

Influence of 2 caries-detecting devices on clinical decision making and lesion depth for suspicious occlusal lesions: A randomized trial from The National Dental Practice-Based Research Network.

BACKGROUND: A suspicious occlusal carious lesion (SOCL) can be defined as a lesion with no cavitation and no radiographic radiolucency but for which caries is suspected. The authors evaluated whether using a device changed the percentage of SOCLs that were opened surgically and, among those SOCLs that were opened, the proportion that had penetrated into dentin. METHODS: Eighty-two dentists participated. In phase 1 of the study, dentists identified approximately 20 SOCLs, obtained patient consent, and recorded information about the lesion, treatment or treatments, and depth, if opened. Dentists were then randomly assigned into 1 of 3 groups: no device, DIAGNOdent (KaVo), and Spectra (Air Techniques). In phase 2, dentists enrolled approximately 20 additional patients and recorded the same phase 1 information while using the assigned device to help make their treatment decisions. A mixed-model logistic regression was used to determine any differences after randomization in the proportion of lesions opened and, if opened, the proportion of lesions that penetrated into dentin. RESULTS: A total of 1,500 SOCLs were enrolled in each phase. No statistically significant difference was found in the change in proportion of lesions receiving invasive treatment from phase 1 to phase 2 across the 3 groups (P = .33) or in the change in proportion of percentage of opened lesions that extended into dentin (P = .31). CONCLUSION: Caries-detecting devices in the study did not change substantially dentists' decisions to intervene or the accuracy of the intervention decision in predicting lesion penetration into dentin. PRACTICAL IMPLICATIONS: The caries-detecting devices tested may not improve dentists' clinical decision making for SOCLs.

Dentists' decision strategies for suspicious occlusal caries lesions in a National Dental PBRN study.

OBJECTIVE: Case presentations (vignettes) were completed by dentists in the National Dental Practice-Based Research Network study "Decision Aids for the Management of Suspicious Occlusal Caries Lesions (SOCLs)". The objective was to determine dentists' decision strategies for SOCLs. METHODS: 107 dentists viewed a series of 16 vignettes that represented all combinations of 4 clinical cues: color, luster, lesion roughness, and patient-level caries risk. Each vignette included a patient description and a photograph of a tooth presenting the 4 cues. Dentists were asked to decide the likelihood that a suspected lesion extended into dentin. A lens model analysis was used to examine how dentists use these cues in making their decisions. RESULTS: 86% of dentists had a consistent pattern of cue use that defined their decision strategy. On average, 70% of the variance in their decisions was accounted for by their use of the 4 cues. However, there was considerable variability in the individual cues used by each dentist. The percentages of dentists who used the different cues consistently were: luster (58%), color (48%), roughness (36%), and risk (35%). 14% of dentists reliably used only color, 7% used only luster, 4% used only roughness, and 1% used only risk when making SOCL decisions. CONCLUSIONS: The online vignette system suggests that clinical SOCL decision strategies are highly individualized and dentists do not use all cues available to them to make these decisions. CLINICAL SIGNIFICANCE: Prior to this study, there has been little evidence about how dentists use these cues (either individually or in combination) when judging the extent of caries progression. Such knowledge would be valuable when designing interventions to help dentists maximize the likelihood of appropriate treatment decisions.

Dental provider practices and perceptions regarding adolescent vaccination.

OBJECTIVE: To assess dental providers' clinical practices and perceptions regarding adolescent vaccinations. METHODS: We surveyed 234 dental providers in an integrated health care setting in Portland, Oregon, in March-April 2015. We assessed participants' knowledge of adolescent vaccines, barriers to recommending vaccines, and their perceived role in the promotion of vaccination and preventive medical care. RESULTS: Over 80 percent of respondents correctly identified influenza, tetanus-diphtheria-acellular pertussis, and human papillomavirus as vaccinations recommended for adolescents; 60 percent correctly identified meningococcal conjugate. Forty-four percent of providers reported previously discussing vaccination with their adolescent patients. Lack of knowledge (66 percent), uncertainty about whether patients would accept recommendations (62 percent), and lack of time (61 percent) were commonly reported barriers. While few providers expressed personal concerns about the safety (13 percent) and effectiveness (10 percent) of adolescent vaccines, most believed parents had concerns about safety (70 percent) and effectiveness (60 percent). Although 80 percent endorsed the premise that providers should discuss preventive medical care with their patients, only 54 percent said they should discuss vaccinations specifically. CONCLUSIONS: Dental providers reported several barriers to recommending vaccines. While comfortable with discussing preventive medical care in general, providers are less comfortable making vaccine recommendations to their patients. Vaccine recommendations are not a traditional practice among dental providers and may require additional education and communication tools.

Surface characteristics and lesion depth and activity of suspicious occlusal carious lesions: Findings from The National Dental Practice-Based Research Network.

BACKGROUND: A lesion on an occlusal tooth surface with no cavitation and no radiographic radiolucency but in which caries is suspected owing to surface roughness, opacities, or staining can be defined as a suspicious occlusal carious lesion (SOCL). The authors' objective was to quantify the characteristics of SOCLs and their relationship to lesion depth and activity after these lesions were opened surgically. METHODS: Ninety-three dentists participated in the study. When a consenting patient had an SOCL, information was recorded about the tooth, lesion, treatment provided, and, if the SOCL was opened surgically, its lesion depth. The Rao-Scott cluster-adjusted χ2 test was used to evaluate associations between lesion depth and color, roughness, patient risk, and luster. RESULTS: The authors analyzed 1,593 SOCLs. Lesion color varied from yellow/light brown (40%) to dark brown/black (47%), with 13% other colors. Most (69%) of SOCLs had a rough surface when examined with an explorer. Over one-third of the SOCLs (39%) were treated surgically. Of the 585 surgically treated SOCLs, 61% had dentinal caries. There were statistically significant associations between lesion depth and color (P = .03), luster (P = .04), and roughness (P = .01). The authors classified 52% of the patients as being at elevated caries risk. The authors found no significant associations between lesion depth and patient risk (P = .07). CONCLUSIONS: Although statistically significant, the clinical characteristics studied do not provide accurate guidance for making definitive treatment decisions and result in high rates of false positives. PRACTICAL IMPLICATIONS: Given that 39% of the opened lesions did not have dentinal caries or were inactive, evidence-based preventive management is an appropriate alternative to surgical intervention.

Dentist material selection for single-unit crowns: Findings from the National Dental Practice-Based Research Network.

OBJECTIVES: Dentists enrolled in the National Dental Practice-Based Research Network completed a study questionnaire about techniques and materials used for single-unit crowns and an enrollment questionnaire about dentist/practice characteristics. The objectives were to quantify dentists' material recommendations and test the hypothesis that dentist's and practice's characteristics are significantly associated with these recommendations. METHODS: Surveyed dentists responded to a contextual scenario asking what material they would use for a single-unit crown on an anterior and posterior tooth. Material choices included: full metal, porcelain-fused-to-metal (PFM), all-zirconia, layered zirconia, lithium disilicate, leucite-reinforced ceramic, or other. RESULTS: 1777 of 2132 eligible dentists responded (83%). The top 3 choices for anterior crowns were lithium disilicate (54%), layered zirconia (17%), and leucite-reinforced glass ceramic (13%). There were significant differences (p<0.05) by dentist's gender, race, years since graduation, practice type, region, practice busyness, hours worked/week, and location type. The top 3 choices for posterior crowns were all-zirconia (32%), PFM (31%), and lithium disilicate (21%). There were significant differences (p<0.05) by dentist's gender, practice type, region, practice busyness, insurance coverage, hours worked/week, and location type. CONCLUSIONS: Network dentists use a broad range of materials for single-unit crowns for anterior and posterior teeth, adopting newer materials into their practices as they become available. Material choices are significantly associated with dentist's and practice's characteristics. CLINICAL SIGNIFICANCE: Decisions for crown material may be influenced by factors unrelated to tooth and patient variables. Dentists should be cognizant of this when developing an evidence-based approach to selecting crown material.

A Comprehensive Health Group Practice Model.

Permanente Dental Associates includes 17 offices in the Pacific Northwest. Among the distinguishing characteristics of this model are a predominantly HMO structure and integration of care in a general medical program. Staff dentists are on salary and are largely relieved of the business details of practice. Ultimate control of the system is vested in a group of shareholders--the dentists who practice chairside. One of the shareholder-practitioners discusses his perspective on this system.

Dentist and practice characteristics associated with restorative treatment of enamel caries in permanent teeth: multiple-regression modeling of observational clinical data from the National Dental PBRN.

PURPOSE: Current evidence in dentistry recommends non-surgical treatment to manage enamel caries lesions. However, surveyed practitioners report they would restore enamel lesions that are confined to the enamel. Actual clinical data were used to evaluate patient, dentist, and practice characteristics associated with restoration of enamel caries, while accounting for other factors. METHODS: Data from a National Dental Practice-Based Research Network observational study of consecutive restorations placed in previously unrestored permanent tooth surfaces and practice/demographic data from 229 participating network dentists were combined. ANOVA and logistic regression, using generalized estimating equations (GEE) and variable selection within blocks, were used to test the hypothesis that patient, dentist, and practice characteristics were associated with variations in enamel restorations of occlusal and proximal caries compared to dentin lesions, accounting for dentist and patient clustering. RESULTS: Network dentists from five regions placed 6,891 restorations involving occlusal and/or proximal caries lesions. Enamel restorations accounted for 16% of enrolled occlusal caries lesions and 6% of enrolled proximal caries lesions. Enamel occlusal restorations varied significantly (P < 0.05) by patient age and race/ethnicity, dentists' use of caries risk assessment, network region, and practice type. Enamel proximal restorations varied significantly (P < 0.05) by dentist race/ethnicity, network region, and practice type.

Concordance between clinical practice and published evidence: findings from The National Dental Practice-Based Research Network.

BACKGROUND: Documenting the gap between what is occurring in clinical practice and what published research findings suggest should be happening is an important step toward improving care. The authors conducted a study to quantify the concordance between clinical practice and published evidence across preventive, diagnostic and treatment procedures among a sample of dentists in The National Dental Practice-Based Research Network ("the network"). METHODS: Network dentists completed one questionnaire about their demographic characteristics and another about how they treat patients across 12 scenarios/clinical practice behaviors. The authors coded responses to each scenario/clinical practice behavior as consistent ("1") or inconsistent ("0") with published evidence, summed the coded responses and divided the sum by the number of total responses to create an overall concordance score. The overall concordance score was calculated as the mean percentage of responses that were consistent with published evidence. RESULTS: The authors limited analyses to participants in the United States (N = 591). The study results show a mean concordance at the practitioner level of 62 percent (SD = 18 percent); procedure-specific concordance ranged from 8 to 100 percent. Affiliation with a large group practice, being a female practitioner and having received a dental degree before 1990 were independently associated with high concordance (≥ 75 percent). CONCLUSION: Dentists reported a medium-range concordance between practice and published evidence. PRACTICAL IMPLICATIONS: Efforts to bring research findings into routine practice are needed.

Rubber dam use during routine operative dentistry procedures: findings from the dental PBRN.

Rubber dam use during operative dentistry procedures has been quantified based on questionnaires completed by dentists. However, based on the knowledge of the authors of the current study, there are no reports based on use during actual clinical procedures other than in dental materials studies and none based on routine care. The objectives of the current study were to: 1) quantify how commonly the rubber dam is used during operative dentistry procedures; 2) test the hypothesis that certain dentist, restoration and patient-level factors are associated with its use. A total of 229 dentist practitioner-investigators in The Dental Practice-Based Research Network (DPBRN) participated. DPBRN comprises 5 regions: Alabama/Mississippi, Florida/Georgia, Minnesota, Permanente Dental Associates; and Scandinavia. Practitioner-investigators collected data on 9,890 consecutive restorations done in previously unrestored tooth surfaces from 5,810 patients. Most dentists (63%) did not use a rubber dam for any restoration in this study. A rubber dam was used for only 12% of restorations, 83% of which were used in 1 DPBRN region. With regions accounted for, no other dentist characteristics were significant. A multi-level multiple logistic regression of rubber dam use was done with restoration and patient-level variables modeled simultaneously. In this multi-variable context, these restoration-level characteristics were statistically significant: tooth-arch type, restoration classification and reason for placing the restoration. These patient-level characteristics were statistically significant: ethnicity, dental insurance, and age. These results, obtained fromactual clinical procedures rather than questionnaires, document a low prevalence of usage of the rubber dam during operative dentistry procedures. Usage varied with certain dentist, restoration, and patient level characteristics.