Dermoid Cyst of the Floor of Mouth in a Pediatric Patient: A Case Report.

Dermoid cysts are rare benign cystic lesions encountered in the head and neck region. Only 7% of dermoid cysts occur in the head and neck area of which only 1.6% appears in the oral cavity. Still rarer is the presentation of the dermoid cyst in the maxillofacial region in a pediatric patient, which is about 0.29%. Herein, we report a pediatric case of a female patient of 13 years old who came with the chief complaint of swelling below the chin since 8 years. Th e purpose of this case report is to emphasis on the rarity of the condition and how important it is to be considered in the differential diagnosis of lesions seen in relation to floor of mouth.

Cone Beam Computed Tomography Aided Diagnosis of Double Dens Invaginatus in a Fused Supernumerary Tooth and Maxillary Central Incisor: A Case Report.

Dens invaginatus is a developmental malformation that causes changes in the internal anatomy of the tooth. Fusion and twinning are terms commonly used to describe the clinical presentation of double teeth. The presence of double dens invaginatus is extremely rare. Therefore understanding the complex morphology, type and extension of dens invaginatus are very essential. To establish the diagnostic hypothesis based on a periapical radiograph is a challenge for all different dentistry specialties. With cone-beam computed tomography (CBCT), the diagnostic dilemma is minimized because of the accurate visualization of the anatomy. The visualization of three-dimensional structures is very helpful in the diagnosis of these complex anatomic variations as it favors precise definition of the problem and treatment planning. With this case report, we would like to highlight how CBCT helped in the evaluation and treatment planning of Double dens invaginatus of a fused supernumerary tooth and maxillary central incisor, which could not be done using the intraoral periapical method.