J Korean Acad Prosthodont.  2025 Jan;63(1):20-30. 10.4047/jkap.2025.63.1.20.

Implant–supported fixed prosthesis for orthognathic surgery in ectodermal dysplasia: a case report

• Shin YA
• Moon JE
• Kang SH
• Park CI
• Bae YJ
• Oh MS
• Jeon WJ
• Kang NR
• Baek MJ

• KMID: 2564799
• DOI: http://doi.org/10.4047/jkap.2025.63.1.20

Abstract

Patients with ectodermal dysplasia often have atrophied alveolar bone and an inadequate maxillomandibular relationship owing to congenital edentulism. Accurate implant placement that can overcomes anatomical limitations and orthognathic surgery to improve the maxillomandibular relationship is necessary for creating implant-supported prosthesis for these patients. Implant placement and provisional prosthesis fabrication before orthognathic surgery can provide critical fixed reference points and ensure accuracy during orthognathic surgery. In our patient, a digital system was used to design a surgical guide that considered the predictable position of the definitive prosthesis, allowing the placement of implants to overcome anatomical limitations and the creation of fixed reference points via the delivery of a provisional prosthesis for effective orthognathic surgery. The lack of compensation during orthognathic surgery was considered in the definitive prosthesis. As a result, a prosthesis with a minimal anterior cantilever was fabricated. This study aimed to determine the appropriate sequence of multidisciplinary collaborations that would, result in the best functional and aesthetic outcomes.

Keyword

CAD-CAM; Computer-Assisted; Ectodermal dysplasia; Implant-supported dental prosthesis; Orthognathic Surgery; Surgery