Autotransplantation of an immature premolar, with the aid of cone beam CT and computer‐aided prototyping: a case report

Abstract

This paper demonstrates the use of a novel technique to aid the surgical procedure of autotransplantation of immature premolar teeth. The use of autotransplantation in this case allowed the difficult situation of two missing units in the upper left quadrant to be reduced to one unit, while retaining symmetry in the upper arch. Compared to previous studies, the use of cone beam CT to create a 3D prototype reduced radiation dose compared to spiral CT and drastically reduced the extra-oral time of the donor tooth from extraction to transplantation.

Endodontic applications of 3D printing

“…In two early prospective studies at the Yonsei University College of Dentistry (Seoul, Korea), computer aided rapid prototyping (CARP) was used to print replicas of teeth such that manipulation of the recipient bone sites could be completed prior to extraction of the transplanted teeth without PDL damage from repeated insertion and removal (Lee et al 2001, Lee & Kim 2012. Numerous additional case reports, clinical studies and in vitro models provide evidence that preoperative CARP of transplant teeth decreases extra-oral time and improves outcomes (Honda et al 2010, Keightley et al 2010, Shahbazian et al 2010, 2012, Pang et al 2011, Park et al 2012, 2014, Cross et al 2013, Jang et al 2013, Lee et al Strbac et al (2016) described the autotransplantation of immature premolars in a maxillary incisor avulsion scenario using a completely digital workflow. The authors used CAD to select the appropriate donor teeth based on dimensions and stage of root development.…”

Prosthetic Rehabilitation of Child Victim of Avulsion of Anterior Teeth with Orthodontic Mini-Implant

“…The most common techniques include attachment of artificial teeth in braces [7], tooth replantation [8], removable partial dentures [9, 10], space closure with fixed orthodontic appliances, followed by reanatomization of lateral incisors and canines [11], and adhesive prosthesis [12]. …”

Treatment of an avulsed maxillary permanent central incisor replaced by autotransplantation of a mandibular premolar: 14‐year follow‐up

“…2001). Recently, Keightley et al. (2010) have used cone beam CT to generate an image of the donor and recipient site as well as the transplanted tooth.…”

“…The combination of spiral CT imaging and computer-aided prototyping to produce a surgical template for the donor tooth has been shown to be useful in increasing success rates by avoiding injury to the delicate donor tooth (Lee et al 2001). Recently, Keightley et al (2010) have used cone beam CT to generate an image of the donor and recipient site as well as the transplanted tooth. This data were then used to fabricate a 3D model of the donor tooth to allow preparation of the implant site prior to autotransplantation.…”