Abstract
Aim: This study aimed to evaluate the frequency and distribution of impacted teeth and the associated pathologies.Materials and Methods: In this descriptive cross-sectional study, 10,000 panoramic radiographs of patients referred to a private radiology center and the radiology department of the School of Dentistry of Mashhad University of Medical Sciences were assessed from 2009 to 2012. All the radiographs were observed by an oral and maxillofacial radiologist. The number, position and inclination of impacted teeth and the associated pathologies were recorded.Results: Of 10,000 radiographs, 3,374 impacted teeth were observed. Third molar was the most prevalent impacted tooth of both jaws (95%), followed by canine, second premolar, second molar, and lateral incisor and first premolar teeth. The vertical position accounted for 36% of all impacted third molars positions, followed by mesioangular (30%), distoangular (22%), horizontal (11%), and buccolingual (1.5%) positions. The most common pathological feature related to impacted teeth was adjacent dental caries (64.7%). Moreover, root resorption of the adjacent tooth (0.6%) and increased follicular space (0.5%) were among the observed complications.Conclusion: In this study, the prevalence of tooth impaction was 33.74%, and the most common impacted teeth were vertically angulated third molars, accounting for most of the cases. In addition, adjacent dental caries was the most prevalent related pathology.Bangladesh Journal of Medical Science Vol.14(2) 2015 p.165-168
Highlights
Impaction is defined as failure in tooth eruption, which can be the result of obstruction in the eruption path or inappropriate tooth position[1]
The records were only evaluated if they belonged to According to the present study, the pathologies patients over 21 years of age, since it is believed that associated with impacted teeth included caries of tooth eruption is normally finished by that age[9]
Total according to Pell and Gregory’s classification, there was no difference in the prevalence of Mesioangular 226 (17.76%) 760 (38.8%) 986 different positions of impacted mandibular third molars
Summary
Impaction is defined as failure in tooth eruption, which can be the result of obstruction in the eruption path or inappropriate tooth position[1]. 1. Mozhgan Kazemian, Asistant professor, Department of Oral and maxillofacial surgery, school of dentistry and dental research center, Mashhad university of medical sciences, Mashhad, Iran. 2. Seyyed hossein Hosseini Zarch, Associated professor, Department of Oral and Maxillofacial Radiology, school of dentistry and dental research center, Mashhad university of medical sciences, Mashhad, Iran. There is still limited data available in Iran almost half of it is covered by the ramus; and other areas regarding the prevalence of impacted Class 3- if the tooth is completely located inside the teeth and their associated complications. The records were only evaluated if they belonged to According to the present study, the pathologies patients over 21 years of age, since it is believed that associated with impacted teeth included caries of tooth eruption is normally finished by that age[9]. 1262 (92.86%) 1963 (97.41%) 3225 molar is perpendicular to the long axis of the 2nd molar
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