Individual 3-dimensional printed mold for treating hard palate carcinoma with brachytherapy: A clinical report

Valentina Lancellotta; Stefano Pagano; Luca Tagliaferri; Marco Piergentini; Alessandro Ricci; Sandro Montecchiani; Simonetta Saldi; Sara Chierchini; Stefano Cianetti; Vincenzo Valentini; György Kovács; Cynthia Aristei

doi:10.1016/j.prosdent.2018.06.016

Individual 3-dimensional printed mold for treating hard palate carcinoma with brachytherapy: A clinical report

J Prosthet Dent. 2019 Apr;121(4):690-693. doi: 10.1016/j.prosdent.2018.06.016. Epub 2018 Nov 30.

Authors

Affiliations

¹ Doctor, Radiation Oncology Unit, Department of Surgical and Biomedical Science, University of Perugia and Perugia General Hospital, Perugia, Italy. Electronic address: valentina.lancellotta@unipg.it.
² Doctor and Researcher, Paediatric Dentistry Unit, Department of Surgical and Biomedical Science, University of Perugia, Perugia, Italy.
³ Doctor, Scienze Oncologiche ed Ematologiche, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario Agostino Gemelli, Rome, Italy.
⁴ Accountant and Engineering Section Manager, 3DIFIC srl, Perugia, Italy.
⁵ Chief Executive Officer and Engineering Section Manager, 3DIFIC srl, Perugia, Italy.
⁶ Doctor and Engineering Section Manager, 3DIFIC srl, Perugia, Italy.
⁷ Doctor, Radiation Oncologist, Radiation Oncology Unit, University of Perugia, Perugia, Italy.
⁸ Trainee, Radiation Oncologist, Radiation Oncology Unit, University of Perugia, Perugia, Italy.
⁹ Professor, Paediatric Dentistry Unit, Department of Surgical and Biomedical Science, University of Perugia, Perugia, Italy.
¹⁰ Professor, Polo Scienze Oncologiche ed Ematologiche, Istituto di Radiologia, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario Agostino Gemelli, Rome, Italy.
¹¹ Professor, Interdisciplinary Brachytherapy Unit, University of Lübeck-University Hospital S-H, Campus Lübeck, Lübeck, Germany.
¹² Professor, Radiation Oncology Unit, Department of Surgical and Biomedical Science, University of Perugia and Perugia General Hospital, Perugia, Italy.

PMID: 30503148
DOI: 10.1016/j.prosdent.2018.06.016

Abstract

This clinical report describes the use of a 3-dimensional (3D) printer to create an individual mold for delivering high-dose-rate interventional radiotherapy for hard palate cancer. The maxillary teeth and palate were scanned with an intraoral scanner (3Shape TRIOS 3). The scan was transformed into a mesh using the standard tessellation language (STL) format and aligned with Digital Imaging and Communications in Medicine (DICOM) computed tomography (CT) images using free Blue Sky Plan 4 planning software. A mold was generated by tracing a guideline around the gingival margins of the maxillary teeth and palate on the scan mesh in accordance with established parameters. All data were imported into computer-aided design (CAD) software. For this patient, 3 parallel 2.2-mm-diameter ducts were placed 10 mm from each other in the mold mesh. A CT scan of the patient's mouth with the mold in place was used for treatment planning. Treatment was delivered by means of microSelectron digital afterloading.

MeSH terms

Brachytherapy*
Computer-Aided Design
Humans
Imaging, Three-Dimensional
Palate, Hard
Printing, Three-Dimensional
Software