Prevalence and Pattern of Impaction of Third Molars (Wisdom teeth) among a Saudi Population

ALI SALEH A ALQAHTANI, SYED AHMED TAQI

Abstract


Aims: This study was aimed to assess the pattern of third molar impaction among two different societies (Abha and Riyadh) in Saudi populations and also to observe the effect of life style and type of food eating habits on eruption of third molars in these two societies.

Methods and Material: History and dental records of OPG (Orthopantomograph) were recorded for 200 patients; 100 patients from Riyadh (King Saudi University; KSU) and 100 from Abha (King Khalid University; KKU). Data were collected randomly for both genders (18-30 years old).

Results: Among 200 patients, 127 (63.5%) were males and 73 (36.5%) were females. In Abha (both genders), 55.36% impacted teeth showed class II ramus relation with a p value of 0.451, which is not statistically significant. In Riyadh society (both genders), 43.07% impacted teeth showed class II ramus relation with a p value of 0.000 which is statistically significant. In Abha (both genders) 79.77% impacted teeth showed position C with respect to occlusal plane of second molar with a p value of 0.201, which is not statistically significant. In Riyadh society (both genders), 53.9% impacted teeth showed position C with respect to occlusal plane with a p value of 0.692, which is not statistically significant. In Abha males and females, 52.7% impacted teeth showed mesioangular impactions and in Abha females, 52.9% impacted teeth showed vertical impaction with a p value of 0.001, which is statistically significant. In Riyadh males, 66.2% impacted teeth showed vertical impaction and in Riyadh females, 55% impacted teeth showed mesioangular impaction with a p value of 0.000, which is statistically significant.

Conclusions: The number of impacted third molar teeth in Riyadh population was more than that of Abha (P value - 0.028). The results showed positive correlation between the eruption of third molar and the diet consumption in these two societies that is in harmony with other studies.

Keywords: Impacted third molars, pattern of impaction, diet types, life style, Abha and Riyadh population of Saudi Arabia.


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