C Concern is a factor associated with knowledge to keep dental and oral health. The research was conducted on parents of students of SDN 02 Cinagara Bogor, using a Likert scale, with the data test using a computer software named SPSS (Statistical Program for Social Science) with a Perason Product Moment correlation test. Validity and reliability test of concer questionnaires carried out at the first stage and submitted to 30 respondents, contains 48 statement about concern. Based on the result of validity test, from 48 statements, 7 statements is confirmed not valid, so that the\alid items claims totaled 41 statements with the coefficient (r) of the valid items range between 0,257 - 0,693, wheras the value obtained from the reliability test Cronbach Alpha (a) = 0,893 which showed that respondents answers of the statements that are used to measure each concept is considered to be consistent and the measurement is reliable. Data analysis performed on the second stage of the questionnaire results on 128 samples with 46 questions about dental and oral health knowledge, and 41 statements about concern. The data was analyzed using Pearson correlation test. Based on the Pearson correlation test, the results showed there is a positive correlation between concern and knowledge, with Pearson correlation coefficient= 0,222 with a number of significant (p-value) = 0,05 which means that the correlation between the two variables are significant.