Digital workflow for the rehabilitation of a geriatric patient with microtia using open-source software
Keywords:
Geriatrics; Rehabilitation; Digital Technology; Computer-Aided Design; Microtia; Maxillofacial Prosthesis; 3D Printing; Image Processing, Computer-Assisted; Quality of Life; ChileAbstract
Introduction: microtia is defined as a congenital hypoplastic malformation of the auricle (external ear), with severity ranging from a slight reduction in auricular size to complete absence of the external ear. It is usually unilateral and may present noticeable asymmetry.
Objective: the present study was to fabricate an adhesive auricular prosthesis for diagnostic purposes using a fully digital workflow. The advantages of the digital methodology were evaluated in terms of diagnostic accuracy, patient comfort and treatment efficiency.
Case report: the patient was an 82-year-old male with no relevant systemic conditions. Extraoral examination revealed microtia of the right auricle, classified as Tanzer Type II and Hunter Grade III. A 3D facial scan was acquired using a structured light scanner. Once the 3D-printed prosthetic design was obtained, it was clinically evaluated to verify its adaptation, positioning, and morphology. Upon approval, medical-grade silicone was used to fabricate the definitive prosthesis.
Conclusions: this clinical case highlights the significant advantages of digital technology in the rehabilitation of geriatric patients with auricular defects. The integration of digital workflows with analog techniques provides an effective approach to enhance the precision, comfort, and aesthetic outcomes of prosthetic treatment.
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Copyright (c) 2026 César Alberto Silva González, Sebastián Córdova González, Nelson Eduardo Campos Vierling, Alain Manuel Chaple Gil, Guido Washington Vidal Vera, Mauricio Antonio Toro González

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