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09 October 2019

Oral Surgery: 3d Printing Technology at the service of Autotransplantation. A Case Report.

Alessandra Abbà


Tooth autotransplantation is the transplantation of one's own tooth from one site of the mouth to another edentulous site. This technique is possible only when a donor tooth is available. Recently, instead of implant solution, autotransplantation has been considered an ideal treatment, especially for a growing patient. In the oral and maxillofacial field 3D models are used for a wide range of applications, such as patient explanations, preoperative treatment planning, surgical simulation, and medical education. Their applications in dentistry are even wider. In this case report published on Bull Tokyo Dent Coll in 2019, Authors described a case of autotransplantation of a mandibular impacted third molar using a 3-dimensional (3D) model.    

Matherials and Methods
 A 27-year-old woman underwent a visit in the Department of Endodontics at Tokyo Dental College Chiba Hospital for conservative treatment of the mandibular left second molar. Intraoral radiography and CBCT images showed a C-shaped root canal in the mesial root and resorption of the distal root due to impact of the crown of the horizontally impacted third molar. Extraction was therefore planned and the possibility of transplanting tooth 38 to replace 37 was considered. Multiple 3D models of these teeth were subsequently prepared based on computer-aided design (CAD) data obtained from CBCT images using a desktop 3D printer. The procedure was explained to the patient using the 3D models and surgical simulation. Finally the surgery was carried out. For temporary fixation to the adjacent tooth, adhesive resin was used.

Results
Postoperative at 2 months showed no vitality of the transplanted tooth, so an endodonthic treatmet was performed. At one year of follow up, any anomaly was found and the patient was able to chew with the transplanted tooth and radiographs indicated a successful postoperative clinical course.    

Conclusion
Autotransplantation of a third molar to another molar site could have many benefits for the patient and could be highly successful. 3D technology for preoperative diagnosis and surgical simulation could be a great support both for the surgeon and the patient. In particular this tool is very useful in tooth autotransplantation.


(Photo credit: Dr. Matteo Patarino)


For additional informations: 
Autotransplantation of Impacted Third Molar Using 3D Printing Technology: A Case Report.

  • Fig. 1: dental caries

    Fig. 1: dental caries

  • Fig 2: autotransplantation

    Fig 2: autotransplantation

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