Application of 3D impaction models and surgical plates in Mesiodens.

Supernumerary teeth are often extracted as they cause delayed eruption of permanent teeth, malocclusion, and infection. To avoid complications, such as damage to the permanent tooth embryo and adjacent tooth root, and errant extraction, we utilized digital technology to create a three-dimensional (3D) impaction model of the tooth and a surgical plate based on computed tomography (CT) data and intraoral scans. This study reports three cases of mesiodens extraction under general anesthesia, applying a 3D impaction model and a surgical plate. All patients were male and aged between 6 and 27 years. The extraction approach was palatal in two cases and labial in one; bone cutting was performed using ultrasonic cutting instruments. Mean operative time was 57 min, and bleeding was minimal with no intra- or post-operative complications. Development of 3D impaction models and surgical plates using digital technology and case reports are needed in future.