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The removal of the retained staples is an efficacious and safe procedure to solve or improve postoperative complications and should be always considered.

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BACKGROUND. Nose and paranasal sinus surgery requires an accurate anatomical knowledge and a fine systematic learning. Surgical practice on cadaveric specimens is very important for the ENT resident to allow for a step-by-step learning, but it is not easy in all countries to have access to this compound.MATERIAL AND METHODS. We propose 3D-printed anatomical bone model exercitations as an alternative method for anatomical study, morphological research and surgical learningRESULTS. We have achieved very satisfactory morphological results both for the colours and shapes.CONCLUSION. The use of 3D modelling simulation allows the young surgeon to improve their technical skills and to the expert surgeon to plan the preoperative strategy in complex situations.