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논문 기본 정보

자료유형
학술저널
저자정보
Sun-Haeng Lee (Department of Prosthodontics, School of Dentistry, Chosun University, Gwangju, Republic of Korea) Ha-Rim Lee (Department of Prosthodontics, School of Dentistry, Chosun University, Gwangju, Republic of Korea) Gyeong-Je Lee (Department of Prosthodontics, School of Dentistry, Chosun University, Gwangju, Republic of Korea)
저널정보
조선대학교 치의학연구원 Oral Biology Research Oral Biology Research Vol.48 No.1
발행연도
2024.3
수록면
1 - 6 (6page)
DOI
10.21851/obr.48.01.202403.1

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Dental implants are accepted as an effective treatment tools; however, they have a biomechanically disadvantageous structure compared with natural teeth. To compensate for the structural limitations of dental implants, occlusal must be considered to minimize the stress applied to the implants. This study aimed to verify whether the basic biomechanical principle that stress should be applied along the long axis of the implant fixture could be appropriately applied to actual implant clinical treatment. To evaluate whether the major axis of the implant is located at the center of the occlusion surface, the location of the screw hole was analyzed using the image of the stereolithographic file formed during the digital laboratory process, and the accuracy of implant placement was confirmed indirectly. The study included 261 patients and 392 implant cases. By tooth type, the numbers of samples were 57 in the first premolar, 66 in the second premolar, 152 in the first molar, and 117 in the second molar. The location of the screw hole was analyzed by dividing the occlusion surface of the implant crown into nine grids of the same size based on the outermost boundary. Consequently, the accuracy of implant placement tended to decrease from the premolar to the molar, upper jaw to the lower jaw, and left to right.

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