Bilateral coronoid hyperplasia: A case report of an intraoral endoscopically assisted coronoidectomy with CAD/CAM cutting guides

• Published in: Oral and maxillofacial surgery cases Vol. 8; no. 3; p. 100267
• Main Authors: Orabona, Giovanni Dell’Aversana, Abbate, Vincenzo, Maffia, Francesco, Sani, Lorenzo, Romano, Antonio, Maglitto, Fabio, Iaconetta, Giorgio, Califano, Luigi
• Format: Journal Article
• Language: English
• Published: Elsevier Inc 01-09-2022; Elsevier
• Subjects: CAD/CAM technology; Coronoid hyperplasia; Coronoidectomy; Minimally invasive surgery; Coronoidectomy; Minimally invasive surgery; CAD/CAM technology; Coronoid hyperplasia
• ISSN: 2214-5419; 2214-5419
• DOI: 10.1016/j.omsc.2022.100267

Coronoid process hyperplasia (CPH) is a rare disease characterized by the abnormal enlargement of the mandibular coronoid process. The most referred symptom is the progressive reduction of mouth opening due to the coronoid impingement on the zygomatic bone. This paper aims to describe a case of bilateral CPH treated with a bilateral intraoral endoscopically assisted coronoidectomy adopting in-house CAD/CAM technology. In May 2021, an 18-year-old man patient came to the authors' observation referring to a worsening limitation of the maximum mouth opening (MMO) and a CT scan revealing bilateral coronoid hyperplasia. The coronoidectomy procedure was performed bilaterally. The MMO improved immediately after surgery. The CAD/CAM cutting guides simplified the surgical procedure maintaining the minimal invasiveness of the endoscopically assisted approach. The encouraging results obtained suggest how the application of in-house CAD/CAM technology to minimally invasive surgery could improve surgical outcomes granting precision and safety at the same time.
•Coronoid process hyperplasia (CPH) is a rare disease characterized by the abnormal enlargement of the mandibular coronoid process.•The surgical treatment of the CPH is based on the removal of the mechanical obstacle by coronoidectomy.•Endoscopic assistance to intraoral coronoidectomy in CPH offers many advantages.•The application of CAD/CAM technology to minimally invasive surgery improves surgical outcomes granting precision and safety at the same time.