BPA Contamination and Investigations

Dental sealants make grade with CPS

Dental sealants make grade with CPS

At the Nathan Davis Elementary School library on a recent Wednesday, Angela Worth, a dental hygienist, brushed cloudy white goo onto a second-grader's molars. Twenty seconds under a bright blue light and the cavity-preventing substance — called a dental sealant — hardened like nail polish.

Worth was there as part of a Chicago Public Schools-based oral health program working to combat the consequences of untreated dental decay in students. Key to that success is providing dental sealants — coatings on healthy molars — to students, especially to poor ones who might not otherwise get much preventive dental care.

Although Illinois has had middling success connecting students...