Prevalence and Distribution of Unerupted/Impacted Teeth Among Individuals 18-25 Years of Age Visiting Outpatient Department of Private Dental College and Hospital in Chennai, India

Abstract

The term unerupted / impacted teeth defines a failure of the tooth to erupt within the expected time into the
dental arch. Impaction is a common dental anomaly where the tooth has not erupted beyond the eruption
period. The incidence of unerupted / impacted teeth differs among different populations and in different
ethnic groups. The aim of this study was to assess the prevalence of unerupted/ impacted teeth among
patients of 18-25 years of age visiting Private Dental college and hospital, Chennai. This is a descriptive
study which is performed under a university setting where all the patients reported to Private Dental college
and hospital, chennai. The data was collected by reviewing patients records and analysed the data of 86000
patients who underwent extraction between June 2019 to March 2020. The population size of the study was
found to be n=296 .Data was collected , tabulated ,statistical analysis was done by SPSS – IBM.( Statistical
Package for Social Studies ). From the statistical analysis, it is observed that the total number of extraction
done between 18-25 years was found to be n=7339 (96%) out of which only n= 295 (4%) was found with an
incidence of impaction. The overall prevalence of unerupted/ impacted teeth were higher in males(55.74%)
predominantly between the age groups of 24 years (18.8%) and was commonly reported to third molars
(41.9%). Within the limitation of the current study, it is found that unerupted / impacted teeth are more
common among 24 years of age with male predilection with higher incidence of mandibular molars.