<![CDATA[Introduction: Communication barriers make it difficult for deaf children to receive information about oral hygiene, resulting in poor oral hygiene being a common health issue among them. This is evident from the average debris index score of 1.9, which falls into the poor category. One educational tool that can be used in oral hygiene education is the flipchart, as it effectively conveys information through simple images, colors, and text. Purpose: this study aims to measure oral hygiene knowledge before and after the use of flipcharts at SLB-B Dharma Wanita Sidoarjo. Method this study employed a pre-experimental design using a one-group pretest-posttest approach. The study sample consisted of 30 respondents selected using purposive sampling. Data were collected using a dental and oral hygiene knowledge questionnaire administered before and after the educational session, which utilized a flipchart. The data were analyzed using the Wilcoxon Signed-Rank Test. Result: of the study indicate an increase in oral hygiene knowledge following education using flipcharts. The average knowledge score after the intervention was higher than before the intervention, with a significance level of p value = 0,000 (p < 0.05). Flipcharts were found to be effective in helping deaf children understand oral hygiene material because the information was presented in a more visual, engaging, and easy-to-understand manner. Conclusion: The use of flipcharts has an impact on improving knowledge of dental and oral hygiene among deaf children at SLB-B Dharma Wanita Sidoarjo.]]>
