Minimally invasive management of odontogenic cutaneous sinus with digitally designed endocrown: Case report with long-term follow-up

Odontogenic cutaneous sinus tracts are uncommon manifestations of chronic dental infections, often misdiagnosed due to their resemblance to dermatological lesions. They typically originate from pulpal necrosis caused by dental caries or trauma and can be effectively managed with accurate diagnosis and adequate disinfection. This case report presents the conservative management of a mandibular second molar with extensive coronal destruction and an associated cutaneous sinus tract. Given the severe loss of tooth structure, the tooth was restored with a computer-aided design/computer-aided manufacture-fabricated zirconia endocrown using a butt joint design. Zirconia was selected for its superior fracture resistance, whereas the conservative design preserved periodontal health and provided excellent stress distribution. At 3^rd year follow-up, the tooth remained functional with no signs of reinfection, and radiographic healing was evident.