2023 Fiscal Year Final Research Report
Establishment of evidence-based SDF method for root caries treatment
Project/Area Number |
21K09924
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 57030:Conservative dentistry-related
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Research Institution | Asahi University |
Principal Investigator |
Nikaido Toru 朝日大学, 歯学部, 教授 (00251538)
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Co-Investigator(Kenkyū-buntansha) |
平石 典子 東京医科歯科大学, 大学院医歯学総合研究科, 講師 (20567747)
高垣 智博 朝日大学, 歯学部, 非常勤講師 (60516300)
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Project Period (FY) |
2021-04-01 – 2024-03-31
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Keywords | フッ化ジアンミン銀 / 根面う蝕 / SDF法 / 唾液検査 / カリエスリスク評価法 |
Outline of Final Research Achievements |
This clinical study aimed to evaluate the changes obtained from a saliva test (Salivary Multi Tests, SMT) before and after application of 38% silver diamine fluoride (SDF) to root caries in elderly patients. The root caries discolored by SDF was restored to validate SDF as a potential caries indicator for the removal of carious tissue on root surfaces. Twenty elderly patients with root caries were recruited. The values of the SMT measurements before and after SDF application were analyzed. The participants totaled 20. There were no significant differences in the SMT results before and after the SDF application, however, the variation coeffcient values before and after SDF application tended to be different among the evaluated items. The resin composite restorations for the teeth with root caries lesions were deemed successful. SDF application on root caries lesions influenced the result of the bacterial count from the SMT measurements.
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Free Research Field |
保存修復学
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Academic Significance and Societal Importance of the Research Achievements |
高齢者の根面う蝕の抑制と治療は喫緊の課題である。38%フッ化ジアンミン銀(以下SDF)は根面齲蝕予防と進行抑制に有効であるが、SDF塗布による黒変は審美的な問題である。福島はSDF塗布による黒変を指標としたう蝕除去法をSDF法として紹介した。本研究課題では、根面う蝕を有する高齢者に対して唾液検査を行ってカリエスリスクを判定し、さらに根面う蝕に対してSDF法による根面う蝕治療を行った。その結果、SDF法によるコンポジットレジン修復の臨床的な有効性を明らかにすることができた。一方、唾液分泌量が低下する高齢者に対する唾液検査は結果が不安定であり、カリエスリスク評価法として適さないことを示唆した。
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