Predictors and Reasons of Permanent Tooth Extraction Among High School Children: A National Cross Sectional study

Abstract

Background: Tooth loss is a major dental health concern that has adverse consequences on the remaining dentition and on the patients’ general wellbeing. The present study aimed to assess predictors and causes of permanent tooth extraction among school students. Methods: This national cross- sectional study included school children and spanned from September 2012 to January 2016. Demographic, social, and medical history recorded. Periodontal and dental examinations were performed. Multivariable logistic regression was used to determine predictors of tooth loss among the sample. Results: A total of 2435 school children were included in the study. Twenty-four percent of the students had extraction of at least one permanent tooth. Almost 27% of the female students had a permanent tooth extraction compared to only 21.7% of the male students, which was statistically significant. Students who visited dentists regularly had significantly more tooth extraction (39%) than student who did not (20.6%). Multivariate logistic regression analysis showed significant predictors for permanent tooth extraction were age, regular dental visits and mean probing depth (PD). Caries (15%) followed by orthodontic treatment (6%) were the main reason for permanent tooth extraction among the sample. Conclusion: Caries was responsible for majority of tooth loss among the study population. Significant predictors for permanent tooth extraction were age, regular dental visits and mean probing depth. There is a need for intensified oral health education and awareness programs in the population with emphasis on prevention of dental caries.