Culler CS, et al. - In this study, the researchers described the evaluation of a school-based dental program operating in Chelsea, a city north of Boston, with a low-income and largely minority population, by comparing participants' oral health to a Massachusetts oral health assessment. They suggested that school-based prevention programs can lead to increased prevalence of dental sealants among high-risk populations. In addition, results provide support for the establishment of full-service school-based programs in similar communities.