In Indonesia town people are being increased almost two fold. Puskesmas is given toothache for low income people specially for anxious people to toothache. The percentage of toothache, pulpitis and periapical membrane disease for people took the fourth rank from nine non contagious diseases at Penjaringan are 2,9%. The objective of the research were to determine the relation of knowledge attitude and behavior aspects about dental cries with DMF-T index and to determine the classification of slum and non-slum areas regarding the above mention on the elementary school students.