Tattletooth was designed to help alleviate the physical, psychological and social problems associated with dental disease by teaching proper dental hygiene techniques and by stressing the importance of good dental health to the social and psychological well-being of the whole person. The program provided for the entire community with the provision of supportive information packages specially prepared for specific community groups. Children received support in their efforts to form good dental habits from teachers, parents, dentists, and hygienists, and local suppliers of toothbrushes, dental floss, and disclosing wafers. In the pilot test, curriculum was designed by teams of teachers, dentists, curriculum designers, and evaluators. Four sets of 19 lessons each were prepared, covering grades K-2, 3-6, Jr. High School, and Sr. High School. These were pilot tested in 111 classrooms in Texas in the Spring of 1975, and this report covered the evaluation strategy, instruments, and results. This report concluded that the materials were quite successful, particularly in the early grades. It was found that the humanistic approach was generally well received and that the entire model for presenting this subject might be equally useful for many other courses. (Author/BJG)