Digital workflow for fabricating a patient-specific detachable 3D-printing model for mesiodens extraction to enhance surgical planning and dental education

Yoon-Jeong Shin; Claire Bryn Roske; Seok-Hwan Cho; Joseph Curtis; Hang-Nga Mai; Du-Hyeong Lee

doi:10.1186/s12903-026-07674-3

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Digital workflow for fabricating a patient-specific detachable 3D-printing model for mesiodens extraction to enhance surgical planning and dental education

Journal article

Open access

Peer reviewed

Digital workflow for fabricating a patient-specific detachable 3D-printing model for mesiodens extraction to enhance surgical planning and dental education

Yoon-Jeong Shin, Claire Bryn Roske, Seok-Hwan Cho, Joseph Curtis, Hang-Nga Mai and Du-Hyeong Lee

BMC oral health, Vol.26(1), 330

2026

DOI: 10.1186/s12903-026-07674-3

PMID: 41578289

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Abstract

Background The purpose of this study was to introduce a unified single-platform workflow for fabricating a patient-specific, multi-material 3D printing model of an impacted mesiodens. The workflow integrates CBCT and intraoral scans within a single planning platform and incorporates a fully detachable modular design and an elastic gingival layer to enable realistic soft-tissue simulation and stepwise surgical rehearsal. Case presentation Cone-beam computed tomography (CBCT) and intraoral scans were obtained for a patient with a fully impacted mesiodens. Using a single planning platform, anatomic structures (including teeth, bone, and gingiva) were segmented, and modular, engaging components were designed using computer-aided design functions. A multi-material model with detachable layers was fabricated using 3D printing to permit stepwise rehearsal: flap design, osteotomy, and tooth removal. The model accurately reflected patient-specific anatomy, and the elastic gingival component enabled realistic soft-tissue manipulation. This enhanced the fidelity of preoperative planning and provided improved educational value by visualizing anatomical relationships in stages. Conclusions This study demonstrates the feasibility of a unified single-platform workflow integrating CBCT and intraoral scans to produce patient-specific, detachable, multi-material 3D models. By combining modular design with soft-tissue simulation, the method supports clear, stepwise visualization of the mesiodens site.

Digital scan

Patient-specific

Segmentation

3D printing model

Cone-beam computed tomography

Mesiodens

Details

Title: Subtitle: Digital workflow for fabricating a patient-specific detachable 3D-printing model for mesiodens extraction to enhance surgical planning and dental education
Creators: Yoon-Jeong Shin - Kyungpook National University
Claire Bryn Roske - University of Iowa
Seok-Hwan Cho - University of Iowa
Joseph Curtis - University of Iowa
Hang-Nga Mai - Kyungpook National University
Du-Hyeong Lee - University of Iowa
Resource Type: Journal article
Publication Details: BMC oral health, Vol.26(1), 330
DOI: 10.1186/s12903-026-07674-3
PMID: 41578289
NLM abbreviation: BMC Oral Health
ISSN: 1472-6831
eISSN: 1472-6831
Publisher: Springer Nature
Language: English
Electronic publication date: 01/23/2026
Date published: 2026
Academic Unit: Prosthodontics
Record Identifier: 9985129577502771

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