Journal of Maxillofacial and Oral Surgery

, Volume 11, Issue 3, pp 271–275 | Cite as

Distribution of Third Molar Impactions Among Rural and Urban Dwellers in the Age Group of 22–30 years in South India: A Comparative Study

  • K. Venu Gopal ReddyEmail author
Original Paper



(1) To collect the data related to distribution of third molar impactions among rural population by clinical and radiological examinations. (2) To collect the information on distribution of third molar impactions among urban population by clinical and radiological examinations. (3) To compare the patterns of distribution of third molar impactions among rural and urban residents with respect to type of impaction, arch, gender and age.


A cross-sectional study was conducted in Dharwad district of Karnataka state located in South India involving 630 rural and 270 urban subjects as per demographic profile of India. A two stage sampling procedure was adopted in the selection of the sample.

Statistical Analysis

Data was analyzed using STATISTICA-6.0. χ2 test was used to explore the association between different variables and third molar impactions. A P ≤ 0.05 was considered statistically significant.


14.92% of rural subjects and 27.40% urban subjects were reported to be suffering from third molar impactions.


The overall prevalence of third molar impactions among the study subjects was found to be 18.67%. A significant association was noticed between the ‘different arches’ and distribution of third molar impactions in both rural and urban population. Subjects with vertical impactions were found to be most common in both the groups.


Third molar impaction Cross-sectional study Demographic profile Rural Urban Vertical impaction 



I thank Dr. S. B. Javali, Statistician, SDM. College of dental sciences, Dharwad for helping in the statistical analysis.


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Copyright information

© Association of Oral and Maxillofacial Surgeons of India 2011

Authors and Affiliations

  1. 1.Department of Public health dentistryPeople’s college of dental sciences & Research centreBhopalIndia

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