Pre–Post Changes in Dental Knowledge, Attitudes, Skills, and Oral Hygiene Behaviors After a Five-Week Community Health Worker Intervention

Objective: This study evaluates the pre–post changes in dental knowledge, attitudes, skills, and behaviors following a community health worker (CHW)-led intervention. Methods: Adult caregivers from migrant worker families living near the United States–Mexico border participated in the five-week, in-person, CHW-led intervention program. The two-hour once/week interactive sessions were held in Spanish and included oral health education, skill-building, and goal-setting. Participants completed pre- and post-surveys about dental knowledge, attitudes, skills, and oral hygiene behaviors (N = 117). Participants self-reported frequency of brushing and flossing in the prior week, which was dichotomized to reflect meeting the American Dental Association (ADA) guidelines of brushing twice/day and flossing once/day. Mean group comparisons and paired t-tests were conducted to assess pre- and post-intervention differences. Intervention feedback was also evaluated. Results: Pre-intervention, most adults met hygiene guidelines, and in the overall sample, there were no significant differences post-intervention. However, there were meaningful behavior change differences observed among subgroups not meeting ADA guidelines at baseline. Among the 32% of adults who did not meet ADA brushing guidelines and the 61% that did not meet ADA flossing guidelines at baseline, there were significant improvements post-intervention and increased weekly frequency for brushing (p < 0.001) and flossing (p < 0.001). Pre-intervention, 30% reported not being taught to properly brush or floss; post-intervention, only 3% reported not being taught this skill (p < 0.001). Knowledge (p < 0.001) and some attitudes, including self-efficacy (p < 0.001), significantly increased post-intervention. Program feedback from participants and CHWs was positive, and 81% of participants shared materials. Conclusions: After the CHW-led intervention, there were increases in the adults’ self-reported dental knowledge, some attitudes, and hygiene skills. Toothbrushing and flossing frequency increased post-intervention among the subgroups of adults that were not already meeting ADA guidelines at baseline.