Strategic research for the development and practical application of devices that compensate for the accuracy and trueness of digital impressions

2023 Fiscal Year Final Research Report

• Project/Area Number: 22K21000
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Multi-year Fund
• Review Section: 0907:Oral science and related fields
• Research Institution: Showa University
• Principal Investigator: Masu Rena 昭和大学, 歯学部, 助教 (00965890)
• Project Period (FY): 2022-08-31 – 2024-03-31
• Keywords: 光学印象 / 無歯顎 / インプラント

Outline of Final Research Achievements

It has been reported that the accuracy of intraoral scanners decreases as the impression area increases. In a preliminary study, an auxiliary device was developed and shown to be more accurate than the conventional method when placed over the crest of a defect. However, there are still many unknowns for the clinical application and commercialization, such as the investigation of the degree of authenticity, optimization of the morphology, construction of the scan path, and in vivo measurement of the effect. Therefore, this study was conducted to optimize the morphology of the assistive device and to verify the accuracy and truth compensation effect of the optimized assistive device. After approval by the Ethics Review Board, the accuracy and authenticity of the assistive device developed in the human oral cavity were significantly improved.

Free Research Field

光学印象

Academic Significance and Societal Importance of the Research Achievements

本研究の結果，実際のヒト口腔内にて補助デバイスを使用し，口腔内スキャナーを用いてデジタル印象を行った際に，使用しない場合と比べて有意に精度及び真度が向上した．
これは，従来の印象方法と比較しコスト削減とともに，患者の不快感の軽減及び，スキャンデータをデータベースとして保存可能になると考えられる．これは臨床的に非常に意義があると言える．