Recommendations for simple fixed prosthetic dentistry treatment for the elder, sick patient, and disabled patient

2023 Fiscal Year Final Research Report

• Project/Area Number: 19K10209
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 57050:Prosthodontics-related
• Research Institution: Nagasaki University
• Principal Investigator: Tanoue Naomi 長崎大学, 医歯薬学総合研究科(歯学系), 准教授 (70231660)
• Co-Investigator(Kenkyū-buntansha): 鮎瀬 てるみ 長崎大学, 病院(歯学系), 講師 (00284703) ; 鮎瀬 卓郎 長崎大学, 医歯薬学総合研究科(歯学系), 教授 (20222705)
• Project Period (FY): 2019-04-01 – 2024-03-31
• Keywords: 永久歯冠 / セメント / 抗菌性 / 臨床評価

Outline of Final Research Achievements

In order to impart antibacterial properties to cement materials, we added silver or copper microparticles to MMA-based resin cement, and investigated whether this would have an anti-proliferative effect on Streptococcus mutans. On the other hand, we conducted a clinical study to confirm the durability of prefabricated permanent tooth crowns in the oral cavity.As a treatment strategy for patients who are difficult to receive frequent treatment, such as those with chronic illnesses or disabilities, we would like to propose that it is possible to reduce the number of visits to the hospital by usingprefabricated crowns, and that adding silver or copper fine particles to the cement material for setting can provide a preventive effect against dental caries.

Free Research Field

歯科補綴学

Academic Significance and Societal Importance of the Research Achievements

高齢者・有病者・障害者の歯科治療は特別な対応を必要とするため、頻回の受診が困難な場合が多い。特に補綴治療は、一般的に複数回の加療を必要とするため受診のハードルが高くなる。本研究では簡便な補綴治療を模索し、既製永久歯冠の臨床応用が有用で臨床成績にも問題を認めないこと、金属微粒子の添加によって抗菌性を持たせたセメントとの組み合わせで更に良好な予後が見込めることを確認した。人口構成の変化によって顕著な増加傾向にある高齢者・有病者・障害者率を考慮すると、本研究は学術的意義のみならず社会的意義も大きい。