Objectives To describe multilevel recruitment strategies for an ongoing clinical trial in pediatric primary care settings, and assess adoption and reach of these strategies via the RE-AIM framework. Methods This study is part of a larger pragmatic cluster randomized clinical trial focused on the effectiveness of interventions on the practice, provider, and caregiver levels on dental utilization for Medicaid-enrolled 3–6 year old children. Pediatric practices were recruited according to the proportion of Medicaid-eligible children, geographic region, and County. In accordance with the RE-AIM framework, providers reached were those approached directly and consented, and those who participated in the intervention training adopted to deliver the intervention. Caregivers reached were those approached and consented at their child's well-child visit to participate in the trial. Results Recruitment goals were met over a 21 month period, with an overall enrollment of 18 practices, 62 providers, and 1024 caregivers-child dyads. The majority of practices enrolled were small, suburban, and located in an urban county. The participation rates among approached providers and caregivers was 93% and 84% respectively. Enablers for recruitment was the one-on-one interaction with the provider and caregivers. Barriers to recruitment for caregivers included no-shows and cancellations at well-child visits. Adoption of intervention among providers was high, and caregiver reached were representative of the eligible target population. Conclusions Active approaches to recruitment, such as utilizing opinion leaders, in-person recruitment, and building relationships with practice staff, can result in successful enrollment and imp lementation of a multi-level intervention in pediatric primary care settings.

Objectives: The objectives of this study are to determine the overall and racial differences in the extent of caries experience and to examine the association between child and parent/caregiver characteristics and caries among 3-6-yearold Medicaid-enrolled children. Methods: This study reports baseline cross-sectional data from a larger pragmatic clinical trial in pediatric primary care practices. Child-level clinical dental exams included decayed and filled teeth (dft) using ICDAS criteria and parent/ caregiver questionnaire collected information on socio-demographics, child oral health behaviors, oral health related quality of life (OHQoL), and food environment. Results: A total of 1,024 parent/caregiver-child dyads participated in the study. The overall caries experience (dft) was 49 percent and untreated decay was 42 percent. Children who were Black had 1.3 and 1.2 times significantly higher frequency of untreated primary decay and caries experience compared to non-Black children. An overall logistic regression model predicted that race, increased age, receiving dental care in the past 12 months for a cavity/toothache, and lower caregiver OHQoL was significantly associated with increased odds of the child having caries. Non-Black caregivers with less education, whose child was older, and lower child OHQoL had increased odds of having a child with caries, but these same variables were not predictive for the Black children. Conclusions: Racial disparities exist with respect to caries experience and untreated decay within a Medicaid-enrolled population of young children attending well-child visits. Pediatric primary care offices are well-positioned to provide dental surveillance and preventive care and could play an important role in decreasing oral health inequities.