The Effect of Dental Caries Incidence Rate (DMF-T), Dental and Oral Hygiene Status (OHI-S) on Adolescent Tooth Brushing Behavior based on the area of residence on the River Coast and Highlands in Tayan Hilir District in 2023

Concerning oral health in Sanggau District is still quite high, the results of an initial survey in Tayan Hilir District on MTsN3 children used a questionnaire on 42 respondents. The results obtained are as follows, knowledge about dental and oral health is good (54.8%, and moderate (45.2%). This study aims to describe and analyze the influence of the incidence of dental caries (DMF-T), the status of dental and oral hygiene ( OHI-S) on tooth brushing behavior of young men based on their area of residence on the river coast and highlands in Tayan Hilir District, Sanggau Regency.The tools used were a questionnaire with Cross Sectional, Correlate Spearman and Kendall's test and Regression, with Univariate, Bivariate analysis, Multivariate The results showed that the incidence of dental caries (DMF-T) was 32.3%, oral hygiene status (OHI-s) was 48%. river (54.5%), types of food consumed on average non-cariogenic types every day (61.1%), the age of most respondents aged 13 years (40.4%), the incidence of caries (DMF-T) is influenced by status dental and oral hygiene (OHI-s) by (R=15.7%), influenced by tooth brushing behavior by (R=15%), influenced by living area by (R=8.8%), influenced by type of food ( R=6.3%), and influenced by age (R=6.5%). Dental and oral hygiene status (OHI-s) affected the incidence of dental caries (DMF-T) by (R=16.4%), influenced tooth brushing behavior by (R=15%), affected area of residence (R=9, 9%), affecting the type of food consumed every day non cariogenic type (R = 9%), as well as influencing age (R = 21.3%). Overall the incidence of dental caries (DMF-T) is influenced by oral hygiene status (OHI-s), and vice versa, including the type of food consumed daily and age. The significance value is 0.00 <0.05 with the number (r) close to 1, so it can be concluded that the effect is perfect. Keywords: DMF-T, OHI-S, Toothbrushing Behaviour, Place of Residence