Prevalence and Pattern of Third Molar Impaction in Sample of Yemeni Adults
1Department of Oral and Maxillo-Facial Surgery, Faculty of Dentistry, Sana’a Univeristy, Republic of Yemen
2Department of Basic Sciences, Faculty of Dentistry, Republic of Yemen
3Department of Conservative Dentistry and Oral Health, Republic of Yemen
4Department of Orthodontic and Pediatric Dentistry, Republic of Yemen
Received Date: February 22, 2019; Published Date: March 13, 2019
Background and objectives: Third molar impaction is an important clinical issue because impacted teeth predispose to periodontal disease such as pericoronitis, periodontitis, and other problems such as cystic lesions, neoplasm, root resorption and can cause detrimental effects on adjacent tooth resulting in pain, discomfort and loss of function. The pattern of third molar impaction in Yemeni population has not been described; thus, the aim of this retrospective radiographic study was to determine the prevalence and pattern of third molar impaction, angulation and level of eruption in sample of Yemeni adults.
Materials and methods: The study sample of 609 patients chosen randomly from patients who visited MASS x-ray centers in Sana’a and Ibb cities. The data collected included presence and impaction state, angulation, and depth of impaction of third molars.
Results: Out of total population, 236 (38.8%) showed at least one impacted third molar. The condition was slightly higher in females (40%) than in male (35.1%). The incidence of impacted lower third molars were most frequent (22.8%) than impacted upper third molar (15.9%). The most common level of impacted third molars was level II (43.8%) the most common angulation of impaction in the mandible was the mesioangular (76.8%), the most common level of impaction was level II (43.8%) and position of impaction was B (72.6%). There was no significant difference in the frequency of impaction between the right and left sides of both jaws.
Conclusion: This study found that about 40% of Yemeni adult patients ranging in age from 18-28 years had at least one impacted third molar.
Keywords: Radiography, Panoramic; Third-Molar, Impacted Teeth; prevalence, Yemen