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Pattern of third molar impaction in a Saudi population
Original Research
(7153) Total Article Views
Authors: Ali H Hassan
Published Date October 2010 Volume 2010:2 Pages 109 - 113
DOI: http://dx.doi.org/10.2147/CCIDE.S12394
Ali H Hassan1
1Department of Preventive Dental Sciences, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
Objective: To evaluate the current pattern of third molar impaction in a sample of Saudi patients.
Methods: One thousand thirty-nine orthopantomograms (OPG) of patients ranging in age from 19 to 46 years (536 males and 503 females) were evaluated to determine the frequency of impacted third molars, their levels of eruption, and their angulations.
Results: Four hundred twenty-two (40.5%) of the 1039 OPG showed at least one impacted third molar, with no significant difference between males (222; 52.6%) and females (200; 47.4%) (P = 0.284). The most common number of impacted third molars per OPG was one (72.5%). Impacted third molars were 1.64 times more likely to occur in the mandible than in the maxilla. The most common angulation of impaction in the mandible was the mesial (33.4%), while the most common angulation in the maxilla, was the vertical (49.6%). Level B impaction was the most common in both maxilla (48.2%) and mandible (67.7%). There was no significant difference in the frequency of impaction between the right and left sides in both jaws.
Conclusion: The pattern of third molar impaction in the western region of Saudi Arabia is characterized by a high prevalence of impaction that is greater in the mandibles and with no sex predilection.
Keywords: third molar, impaction, prevalence, Saudi
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