The number of low-income Connecticut children receiving dental sealants, a treatment to prevent tooth decay, has grown in recent years and the state’s participation rate outpaces the nation. In 2016, 44,497 (19.6 percent) of the 226,111 children ages 5 to 16 enrolled in the Connecticut Dental Health Partnership had sealants placed on molars, up 9 percent from 2011, according to the state Department of Social Services. Nationally, in the 2015 fiscal year, 14.9 percent of eligible children – 2.7 million out of more than 17 million – received sealants, according to the Centers for Medicare and Medicaid Services. State officials and dental providers make a concerted effort to educate families about the importance of sealants, said Donna Balaski, director of dental services at DSS. “Sealants are shown to be an effective treatment for preventing disease,” she said, and is part of a broader DSS strategy to teach families about overall dental health.