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.

Third molar impaction prevalence and pattern: a panoramic radiography investigation

“…It was discovered to be predominate in the 21-30 age group; impaction of the third molar was also observed to be 25.2% and 12.2% in the 31-40 and 41-50 age groups, respectively. In other studies, such as Yuvashree C et al 5 at the age of 24 years, Ishwarkumar et al 2 at the age of 20-25 years, and Al-Ramil et al 6 at the age of 23-29 years, similar findings regarding the link between age and the occurrence of impacted third molars were also observed. It is evident that impacted third molars are less common as people mature.…”

“…Researchers generally concur that females have a higher frequency of third molar impaction due to the tendency for third molar in the mandible to erupt roughly three to six months earlier in males than in females. According to studies by Qassadi T et al, 1 , Yuvashree C and Ramani P, 5 and Soh N et al 4 , males are more likely than females to have impacted third molars, and this difference is statistically significant. The location of the healthcare facilities that provided the data and the quantity of participants in their study may both contribute to this variance.…”

“…Prenatal variables like genetics, postnatal factors including anemia, congenital syphilis, malnutrition, and endocrine dysfunction, as well as uncommon diseases such cleidocranial dysplasia and cleft palate, are examples of systemic influences. [3][4][5] Depending on the age group, method of measurement, and variance within the sample population, the prevalence of impacted teeth differs among various groups. According to reports, the prevalence of impacted teeth varies between 16.7 and 68.6% worldwide.…”

“…The location, type, and severity of the impaction are the parameters that are most frequently taken into account. 3,5,6 One of the examination methods that can be used to help diagnose impacted teeth is panoramic radiographs. Panoramic radiograph (2D) is the modality most commonly used clinically as the main diagnostic radiograph to determine the location of impacted teeth and other adjacent structures, assess tooth angulation, determine treatment plans and evaluate treatment outcomes.…”