Participants should be aware of the following financial/non-financial relationships: . Chukwuebuka E. Ogwo, n/a: I do not have any relevant financial / non-financial relationships with any proprietary interests.. Steven M. Levy, n/a: I do not have any relevant financial / non-financial relationships with any proprietary interests.. John J. Warren, DDS, MS: I do not have any relevant financial / non-financial relationships with any proprietary interests.. Daniel Caplan, n/a: I do not have any relevant financial / non-financial relationships with any proprietary interests.. George Wehby, n/a: I do not have any relevant financial / non-financial relationships with any proprietary interests.. Grant Brown, n/a: I do not have any relevant financial / non-financial relationships with any proprietary interests.
Abstract: Objectives: To assess the caries incidence from late adolescence to early adulthood and to identify the factors associated with caries incidence during this period. Methods: This is a secondary analysis of longitudinal caries data of young adults aged 17 to 23 from the Iowa Fluoride Study cohort. The inclusion criteria required completion of dental exams at both ages 17 and 23, and having cumulative exposure (AUC) variables data for at least 8 out of the 11 time periods between age 17 and 23. Mean imputation was used to handle the missing explanatory variable data. Negative binomial regression was used to assess the effects of sociodemographic and behavioral/dietary variables on the age 17 to 23 net cavitated caries (D2+MFS) increment (NCI17 to 23). The final model was selected based on the Akaike Information Criterion (AIC) using backward selection and the net effects calculated. Results: Forty-six percent of participants had a positive NCI17 to 23. The mean NCI17 to 23 was 1.70 surfaces. The net effect (main effect plus interactions) of higher composite SES, higher combined daily fluoride intake, higher frequency of milk intake, higher amount of sugar-sweetened beverages intake, lower 100% juice intake and lower age 17 dental caries counts were associated with lower age 17 to 23 NCI count. Conclusion: The incidence of caries from age 17 to 23 was moderate. This study shows the need to explore new caries preventive strategies beyond fluoride use, like encouraging milk intake and discouraging too much 100% juice intake.
Source of Funding: The IFS was supported in part by National Institutes of Health grants R03-DE023784, R01-DE12101, R01-DE09551, UL1-RR024979, UL1-TR000442, UL1-TR001013, and M01-RR00059; The Roy J. Carver Charitable Trust; and the Delta Dental of Iowa Foundation. The analysis for the dissertation was supported by the University of Iowa College of Dentistry’s Wefel award and the University of Iowa Graduate College’s Post-Comprehensive Graduate Research award.
Affiliations: Affiliations: Temple University (I am currently a faculty at Temple University, but this work was done in partial fulfilment of PhD at the University of Iowa)
