Summary

Objective. To validate a novel 3D-printed temporal bone model as an acceptable substitute for cadaveric human temporal bones in otosurgical training.
Methods. A 3D-printed healthy temporal bone model was evaluated by 54 otosurgeons (27 experienced and 27 trainees) from Italian universities. Participants performed dissections on the model and completed a 27-question survey comparing the synthetic model with the cadaveric one. The primary outcome was the percentage of average total scores exceeding 3, with acceptability set at > 70%.
Results. Overall, 80.9% (p < 0.001) of participants rated the model as comparable to the cadaveric temporal bone (average total score exceeding 3). High scores were observed for “usefulness as a training tool”, “task-based usefulness” and “overall reactions” domains with an average total score exceeding 3 in 95.8% (p < 0.001), 83.2% (p < 0.001), and 79% (p = 0.004) of questionnaires respectively. No significant differences were found between experienced and trainee surgeons’ evaluations.
Conclusions. 3D-printed temporal bone models are a viable, cost-effective, and customisable training tool comparable to cadavers. The realism of the soft tissues still needs to be refined in order to better mimic cadaveric specimens.

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Authors

Pietro Canzi - Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy; Department of Otorhinolaryngology, University of Pavia, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy. *IO, PC and SM contributed equally to the work.

Ilaria Ottoboni - epartment of Otorhinolaryngology, University of Pavia, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy. *IO, PC and SM contributed equally to the work. Corresponding author - ilaria.otto94@gmail.com

Stefania Marconi - Department of Architecture and Civil Engineering, University of Pavia, Pavia, Italy. *IO, PC and SM contributed equally to the work.

Ferdinando Auricchio - Department of Architecture and Civil Engineering, University of Pavia, Pavia, Italy

Matteo Alicandri-Ciufelli - Department of Otolaryngology-Head and Neck Surgery, Azienda Ospedaliero-Universitaria di Modena, Modena, Italy

Paolo Aluffi Valletti - Department of Otorhinolaryngology, Eastern Piedmont University, Ospedale Maggiore della Carità, Novara, Italy

Michela Borin - ENT and Audiology Unit, Department of Neurosciences and Rehabilitation, University of Ferrara, Ferrara, Italy

Luca Bruschini - Otolaryngology, Audiology, and Phoniatrics Unit, University of Pisa, Pisa, Italy

Andrea Canale - Division of Otorhinolaryngology, Department of Surgical Sciences, University of Turin, Turin, Italy

Elena Carlotto - Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy; Department of Otorhinolaryngology, University of Pavia, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy

Filippo Carta - Unit of Otorhinolaryngology, Department of Surgery, Azienda Ospedaliero-Universitaria di Cagliari, University of Cagliari, Cagliari, Italy

Giuseppe Chiarella - Department of Experimental and Clinical Medicine, Audiology and Phoniatrics Unit, Magna Graecia University of Catanzaro, Catanzaro, Italy

Edoardo Covelli - Department of Neuroscience, Mental Health and Sensory Organs, Faculty of Medicine and Psychology, Sapienza University, Rome, Italy

Adelchi Croce - Department of Otolaryngology, University G. D’Annunzio of Chieti-Pescara, Chieti, Italy

Stefano Di Girolamo - Otolaryngology Department, Tor Vergata University, Rome, Italy

Francesco Dispenza - Department of Biomedicine, Neuroscience and Advanced Diagnostics, Azienda Ospedaliera Universitaria Policlinico ‘‘Paolo Giaccone’’, University of Palermo, Palermo, Italy

Salvatore Ferlito - Department of Medical and Surgical Sciences and Advanced Technologies “GF Ingrassia” E.N.T. Section, University of Catania, Catania, Italy

Ignacio Javier Fernandez - Department of Otolaryngology, Head and Neck Surgery, IRCCS Azienda Ospedaliero-Universitaria di Bologna; Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy

Virginia Valeria Ferretti - Unit of Clinical Epidemiology and Biometrics, IRCCS Fondazione Policlinico San Matteo, Pavia, Italy

Anna Rita Fetoni - Audiology Section “Federico II”, Department of Neuroscience, Reproductive Sciences and Dentistry Department, University of Naples Federico II, Naples, Italy

Lorenzo Maria Gaini - Department of Otolaryngology and Head and Neck Surgery, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy

Cosimo Galletti - Faculty of Medicine and Surgery, University of Enna “Kore”, Enna, Italy; Department of Adult and Development Age Human Pathology “Gaetano Barresi”, Unit of Otorhinolaryngology, University of Messina, Messina, Italy

Annalisa Gatto - Department of Medical, Surgical and Health Sciences, Section of Otolaryngology, University of Trieste, Trieste, Italy

Andrea Laborai - Unit of Otolaryngology Head and Neck Surgery, IRCCS Policlinico San Martino Hospital, Genoa, Italy

Enrico Liaci - Department of Medicine and Surgery, Department of Otolaryngology and Otoneurosurgery, University of Parma, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy

Simone Mauramati - Department of Otorhinolaryngology, University of Pavia, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy

Antonia Pisani - Otorhinolaryngology Unit, Head and Neck Department, ASST Santi Paolo e Carlo Hospital, Milan, Italy

Nicola Quaranta - Otolaryngology Unit, Department of Translational Biomedicine and Neurosciences (DiBraiN), University “Aldo Moro” of Bari, Bari, Italy

Giampietro Ricci - Department of Medicine & Surgery, Section of Otorhinolaryngology, University of Perugia, Perugia, Italy

Francesca Yoshie Russo - Department of Sense Organs, Sapienza University of Rome, Rome, Italy

Bruno Sergi - Department of Otolaryngology, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy

Davide Soloperto - Otolaryngology Department, University Hospital of Verona, Verona, Italy

Michele Tomasoni - Unit of Otorhinolaryngology - Head and Neck Surgery, ASST Spedali Civili di Brescia, Comprehensive Cancer Center, Brescia, Italy

Elisabetta Zanoletti - Section of Otorhinolaryngology-Head and Neck Surgery, Department of Neuroscience-DNS, Azienda Ospedale Università di Padova, University of Padua, Padua, Italy

Marco Benazzo - Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy; Department of Otorhinolaryngology, University of Pavia, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy

How to Cite
Canzi, P., Ottoboni, I., Marconi, S., Auricchio, F., Alicandri-Ciufelli, M., Aluffi Valletti, P. ., Borin, M. ., Bruschini, L., Canale, A. ., Carlotto, E., Carta, F., Chiarella, G., Covelli, E., Croce, A., Di Girolamo, S., Dispenza, F., Ferlito, S., Fernandez, I. J. ., Ferretti, V. V., Fetoni, A. R., Gaini, L. M. ., Galletti, C., Gatto, A., Laborai, A. ., Liaci, E., Mauramati, S., Pisani, A., Quaranta, N., Ricci, G., Russo, F. Y. ., Sergi, B., Soloperto, D., Tomasoni, M., Zanoletti, E., & Benazzo, M. (2026). Are 3D-printed temporal bone models the future of otologic surgical training? A national multicentre validation study. ACTA Otorhinolaryngologica Italica, 46(5), 391–402. https://doi.org/10.14639/0392-100X-A1813
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