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KMID : 1033920210170010034
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Journal of The Korean Academy of Geriatric Denstry
2021 Volume.17 No. 1 p.34 ~ p.38
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Formation of screw access holes in an implant supported fixed prosthesis using a digitally fabricated drilling guide template
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Mai Hai Yen
Mai Hang-Nga
Lee Du-Hyeong
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Abstract
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Formation of screw access hole in clinic could be difficult in cement-retained implant restorations. Conventional methods for making the screw-access hole are labor-intensive and based on impression materials, which involves inaccuracy and clinical discomfort. This clinical report describes a digital workflow for fabricating a drilling guide template for forming the screw access hole by means of intraoral optical scan, and computer-aided design and computer-aided manufacturing (CAD/CAM) technologies. The present technique not only enhances the accuracy of guided drilling for screw access hole formation, but also increases the convenience of treatment.
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KEYWORD
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CAD/CAM, Guide template, Implant supported fixed dental prosthesis, Intraoral optical scan, Screw access hole
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