International Journal of Recent Innovations in Medicine and Clinical Research Open Access, Peer Reviewed, Abstracted and Indexed Journal ISSN: 2582-1075 https://ijrimcr.com/ Volume-2, Issue-1, 2020: 1-8 1 Case Report Dentigerous Cyst of Inflammatory Origin in the Maxilla-A Rare Entity Dr. Mayuri Singh * , Dr. Deepak P Bhayya 1 , Dr. Garvita Sahu 2 , Dr. Amit Singh 3 * PG Student, Department of Paedodontics and Preventive Dentistry, Hitkarini Dental College and Hospital, Jabalpur, Madhya Pradesh India. 1 Professor and Head, Department of Paedodontics and Preventive Dentistry, Hitkarini Dental College and Hospital, Jabalpur, Madhya Pradesh India. 2 PG Student, Department of Oral and Maxillofacial Surgery, Hitkarini Dental College and Hospital, Jabalpur, Madhya Pradesh India. 3 Resident Doctor, Department of Dentistry, AIIMS Bhopal. Corresponding Author Email: drmayurisingh15@gmail.com. Received: January 5, 2020 Accepted: February 2, 2020 Published: February 18, 2020 Abstract: The purpose of this case report is to describe the management of dentigerous cyst in maxillary left anterior region with respect to unerupted central incisor, lateral incisor and deciduous canine seen in 10 year old male patient. Radiographic examination revealed well defined radiolucency associated with lateral incisor and the non-vital deciduous canine. The cystic space lined by odematous epithelium, consisting of basal cuboidal to flat cells and superficial loose cells. Adjacent connective stroma is densely inflamed with chronic inflammatory cell infiltration and blood capillaries. Diagnosis was made and marsupilization under general anesthesia was planned. Keywords: Dentigerous cyst, Marsupilization. Introduction Dentigerous cyst is the second most common cyst of the oral cavity [1]. A dentigerous cyst is one that encloses the crown of an unerupted tooth by expansion of its follicle and is attached to the neck of the tooth [2]. It is a radiolucent, well-defined, odontogenic lesion that surrounds the crown of an unerupted tooth and prevents its eruption. Develops from proliferation of the enamel organ remnant or reduced enamel epithelium [2]. Most commonly seen in association with third molars and maxillary canines. The highest incidence occurs during the second and third decades. In rare cases, dentigerous cyst occurs in maxilla in the first decade of life. Greater incidence in males, with a ratio of 1.6 to 1 reported. Symptoms are generally absent, with delayed eruption being the most common indication of dentigerous cyst formation [3, 4]. Case Report A 10-year-old boy reported to the department of paediatric dentistry, Hitkarini Dental College and Hospital, with chief complaint of pain and swelling in left upper front tooth region since 6 months. Pain was sudden in onset, throbbing in nature, continuous, non-progressive and no radiation of pain was present. Pain was relieved by taking medications. Pain was associated with swelling. There was no significant medical history. Blood investigations were found to be within normal physiological limits. Facial asymmetry was found in extra oral examination involving left half of the face. Swelling was extending from left ala of nose to zygomatic buttress region antero-posteriorly and from left infraorbital region to commisure region superior-inferiorly, it was round to oval in shape, and no surface changes were noted (Figures 1,2,3 and 4). Intraoral examination revealed obliteration of left