Materials and methods: The purpose of this study is to Analyze the Effect of Empowerment of teachers in the maintenance of teeth and mouth of mentally disabled children on the decrease in index debris. The type of research used is quasi-experimental analytics. The targets in this study were all BC Optimal SLB (Sekolah Luar Biasa, School for Disabled Students) teachers. The data collection method used questionnaires and observations. The data analysis technique used the T-Test and all variables were tested together with Manova Test

Result: The results of the study that maintenance of dental and oral hygiene in mentally disabled children can be obtained through empowerment efforts involving SLB teachers. In this study, teacher empowerment is able to improve the knowledge, attitudes and skills of teachers in terms of maintenance of dental and oral hygiene of mentally disabled children

Conclusion: An increase in the knowledge, attitudes and skills of teachers in the maintenance of dental and oral hygiene of mentally disabled children has not shown a decrease in the value of the index debris in mentally disabled children.