The Tattletooth program is a new dental health curriculum in which the students learn in the classroom to care for their teeth through brushing, flossing, and proper diet; and they receive needed support and encouragement to form good dental habits from their parents, dentists, and from community groups. Classroom materials for the Tattletooth curriculum impart an activity-oriented, humorous, positive approach to the teaching of preventive dental care. Separate lesson plan kits have been developed for each of nine grade levels: kindergarten, six elementary grades, junior high school, and senior high school. Tattletooth consists of a number of components in addition to the curriculum package. This report makes six conclusions: (1) teacher training was satisfactory; (2) curriculum materials were generally successful, and educational progress was made in all grade levels; (3) in all cases the field test groups made better dental progress than the respective control groups; (4) teachers used the curriculum materials with their own augmentations; (5) teachers liked the program; and (6) much regional variability was found. Recommendations in keeping with theses conclusions are made. The report includes examination instruments, educational and dental procedural instructions, and educational statistics in appendices. (Author/RC)