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Mesiodens are the supernumerary teeth present in the midline of the maxillary teeth between the two central incisors. These mesiodens are the most common type of supernumerary teeth and are usually responsible for eruption disturbance or delay. The present study seeks to investigate the prevalence of mesiodens among patients visiting dental hospitals for orthodontic treatment . The study was a retrospective collection of data to evaluate the prevalence of mesiodens among 2396 patients , whose ages ranged between fourteen to thirty years. According to the results the prevalence of mesiodens was found to be 0.67%. The results showed that males were affected more than females. Most of the mesiodens were conical in shape. The age, sex distribution and presence of mesiodens per patient are presented in this study. The present study gives an insight into the prevalence of mesiodens among patients visiting dental hospitals.