Treatment by Preplanned Virtual Autotransplantation of a Microdont Immature Third Molar to a Maxillary Central Incisor Socket Using a <scp>3D</scp> Printed Tooth Replica: A Case Report

An 18-year-old female patient presented to emergency dental clinic for avulsion of maxillary left central incisor (#21) in a car accident. In the presence of an immature left maxillary microdontic third molar (#28), a preplanned virtual autotransplantation using an implant planification software was chosen to replace #21. A guided osteotomy using a 3D printed thermoplastic replica was performed to reduce the extra-oral time to < 1 min. Indirect restorations with lithium disilicate veneers were made for both central incisors. After 4 years, the esthetic integration remained satisfactory. The case presented, involving the replacement of an avulsed #21 with an immature microdontic third molar #28, illustrates the possibilities of extending the indications for autotransplantation using virtually planned surgery.