Assessment of prevalence of dentigerous cysts associated with impacted mandibular third molars

Background:  Prevalence of dentigerous cysts related to impacted third molars has been considered important because the risk justifies prophylactic extraction. The purpose of this study was to find out the prevalence of dentigerous cyst caused by impaction of mandibular third molar Methods:  A descriptive study was conducted in the Department of Oral and Maxillofacial Surgery. Samples were taken from the data of patient’s medical record from July 2016 until June 2019.  Results:  The result of this study showed the number of oro-maxillofacial cyst cases in the period was as much as 0.89%. Dentigerous cyst was the most common odontogenic cyst (27.95%). 41-50 years old study participants suffered the most from  dentigerous cyst due to impaction of the mandibular third molars. The most chosen therapy was enucleation (100%). Conclusions:  Impacted third molars were mostly associated with the dentigerous cyst, with the same frequency in both male and female. The age group of 41-50 years old has high possibility of developing dentigerous cysts.