2019 Fiscal Year Final Research Report
Application of digital impression method to denture fabrication-accuracy of boder molding
| Project/Area Number |
18K17156
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 57050:Prosthodontics-related
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| Research Institution | Showa University |
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Principal Investigator |
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| Project Period (FY) |
2018-04-01 – 2020-03-31
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| Keywords | デジタル / 部分床義歯 / 光学印象 / 筋圧形成 / 口腔内スキャナー |
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| Outline of Final Research Achievements |
The digital impression method using intra-oral scanner (IOS) has a potential to be applied to the impression in regions of the buccal vestibule, and the precision of impression was high, which is comparable with the standard conventional impression method. However, it was also suggested that the gingivobuccal fold extracted from the 3D morphological shape made by the digital impression method could be more profound than made by the conventional impression method. Consequently, these results might be referred to when future studies are conducted to establish the digital impression procedure for the RPD fabrication.
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| Free Research Field |
歯科補綴
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| Academic Significance and Societal Importance of the Research Achievements |
口腔内スキャナーを使用したデジタル印象法は臼歯部頬側軟組織の印象に適用可能で，デジタル印象法は従来法に匹敵する精度を有する可能性が示唆された．しかしながら，デジタル印象法でスキャンした三次元形態データから抽出された歯肉頬移行部最深点は，従来法によりも深くなることが示唆された．そのため，口腔内スキャナーでスキャンした三次元形態データを用いて可撤性有床義歯を製作する際には，義歯床縁設定位置に留意する必要があることが示唆された．
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