CLINICAL AND RADIOGRAPHIC FEATURES OF ODONTOGENIC CYSTS OF JAW PRESENTED TO THE DEPARTMENT OF ORAL AND MAXILLOFACIAL SURGERY, KHYBER COLLEGE OF DENTISTRY PESHAWAR

Objectives: To determine frequency, clinical and radiographic features of diff erent types of odontogenic cysts in patients reported to the department of Oral and Maxillofacial surgery, Khyber College of Dentistry Peshawar.Materials and Methods: This descriptive, cross sectional study was conducted at department of Oral and Maxillofacial Surgery, Khyber College of Dentistry, Peshawar from November 2019 to October 2021.This study was conducted on 89 patients with histopathologically confi rmed reports of odontogenic cysts. Data with respect to age, gender, type of odontogenic cyst, clinical and radiographic features of these cysts were analyzed from the data obtained through a customized structured proforma.Results: Out of the total 89 patient, there was male predilection (2.17:1). The most frequent age group was 2nd and 3rd decades. Among diff erent types of odontogenic cysts, radicular cyst (37.1%) was the most common cyst followed by dentigerous cyst (33.7%) and odontogenic keratocyst (27%). The most common aff ected site was posterior mandible (46.1%). Paresthesia was present in 22.5% cases. Unicortical expansion was present in 59.6 % and bicortical expansion in 38.2% cases. Tenderness was present in 50.6% cases and teeth mobility in 28.1% cases. Needle aspiration test was positive in 78.7% cases. Mean size was 32.23mm + 14.53 standard deviation. Unilocular radiolucency was present in 74.2% and multilocular radiolucency in 25.8%. Root resorption was present in 64% cases and impacted tooth was associated with 52.2% odontogenic cysts.Conclusion: It is concluded from this study that odontogenic cysts frequently encountered during 2nd and 3rd decades of life and more common in males with a predilection for the posterior mandible. Radicular cysts are most frequent among the other types of odontogenic cysts. Majority of patients has cortical expansion and positive needle aspiration test. Impacted tooth is associated with all the dentigerous cysts and most of OKC‘s and none of radicular cyst. Odontogenic cysts can reach to a considerable size to involve even half of the mandible.