Distribution of Third Molar Impactions Among Rural and Urban Dwellers in the Age Group of 22–30 years in South India: A Comparative Study
- 91 Downloads
(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.
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.
KeywordsThird 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.
- 1.Prabhu SR, Wilson DF, Daftary DK, Johnson NN (1992) Anthropological aspects of dental morphology with special reference to tropical populations. In: Oral diseases in the Tropics. Oxford university press, Oxford, pp 45–55Google Scholar
- 2.Olasoji HO, Odusanya SA (2000) Comparative study of third molar impaction in rural and urban areas of South Western Nigeria. J Odonto Stomatol Trop 23(90):25–28Google Scholar
- 3.Rajdan D (1996) A study of third molar teeth. J Ind Dent Assoc 67:6–11Google Scholar
- 4.Census of India (2001) Available on link http://censusindia.gov.in/. Accessed on 20 Aug 2011
- 5.Ash M, Nelson SJ (2003) Development and eruption of the teeth. In: Wheelers dental anatomy, physiology and occlusion, 8th edn, pp 53Google Scholar
- 6.Park K (2009) Demography and family planning. In: Park’s textbook of preventive and social medicine, 20th edn. Jabalpur, Bhanot Publishers, pp 415Google Scholar
- 7.Mahajan BK (1997) Sampling. In: methods in biostatistics, 6th edn. New Delhi, Jaypee Brothers Publishers, pp 88–102Google Scholar
- 8.World Health Organization (WHO) (1999) Geneva. Reliability and validity of data. In: Oral health surveys-basic methods, 4th edn. Delhi, A.I.T.B.S.Publishers, pp 13–15Google Scholar
- 9.Laskin DM (1984) Excision of unerupted and impacted teeth-odentectomy. In: Textbook of oral and maxillofacial surgery, vol 2, 6th edn. St. Louis, The C. V. Mosby Company, pp 49Google Scholar
- 10.Park K (2009) Health information and basic medical statistics. In: Park’s textbook of preventive and social medicine, 20th edn. Jabalpur, Bhanot Publishers, pp 755Google Scholar
- 11.Schearsten E, Lysell L, Rohlin M (1989) Prevalence of impacted third molars in dental students. Swed Dent J 13(1–2):7–9Google Scholar
- 13.Tudri S (1988) Incidence of impacted wisdom teeth and complications in Thai community. J Dent Assoc Thai 38(4):163–169Google Scholar
- 14.Kedar V, Nanavati SD (1997) Unusual impactions. J Ind Dent Assoc 49:259–266Google Scholar
- 17.Saglam AA, Tuzum S (2003) Clinical and radiologic investigation of the incidence, complications and suitable removal times for fully impacted teeth in the Turkish population. Quinte int 34:53–59Google Scholar
- 19.Hellman MO (1961) Our third molar teeth: their eruption, presence and absence. J Dent Cosmos 78:750–762Google Scholar