Non‐Radiological Method for Fabrication of a Screw‐Channel Drilling Guide in Cement‐Retained Implant Restorations Using Intraoral Digital Scanning and Imaging Superimposition: A Clinical Report |
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| Authors: | Hang‐Nga Mai DDS Kyung‐Rok Kim BS Du‐Hyeong Lee DDS MS |
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| Affiliation: | 1. Department of Prosthodontics, School of Dentistry, A3DI, Kyungpook National University, Daegu, Korea;2. Dental Technician, Kyungpook National University Hospital, Daegu, Korea |
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| Abstract: | The difficulty of retrieving the abutment screw is a major disadvantage of cement‐retained implant restorations. Conventional methods for locating the screw‐access hole are based largely on radiography or manual labor, which limits accuracy and clinical feasibility. This clinical report describes a non‐radiological method for fabricating an accurate drilling guide for location of the screw channel using intraoral optical scanning, 3D superimposition, and computer‐aided design and computer‐aided manufacturing (CAD/CAM) technologies. The present technique not only improves the guide fabrication process and the accuracy of screw‐channel drilling, but also has wide indications for implant restorations. |
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| Keywords: | Intraoral optical scanning superimposition screw‐channel drilling guide cement‐retained implant restoration |
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