The clinical/basic interdisciplinary studies for enabling expanded adaptation of metal free treatment -An improvement of CAD/CAM resin composite crowns' stability-

2021 Fiscal Year Final Research Report

• Project/Area Number: 17H04389
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Prosthodontics/ Dental materials science and
• Research Institution: Osaka University
• Principal Investigator: Mine Atsushi 大阪大学, 歯学部附属病院, 講師 (60379758)
• Co-Investigator(Kenkyū-buntansha): 矢谷 博文 大阪大学, 歯学研究科, 招へい教員 (80174530)
• Project Period (FY): 2017-04-01 – 2021-03-31
• Keywords: CAD/CAMレジン冠 / メタルフリー補綴 / 接着歯学 / 臨床疫学

Outline of Final Research Achievements

From basic research, specific procedure for luting CAD/CAM resin composite crowns (e.g. alumina blasting without water rinsing is the most effective way to recover the decrease in bond strength due to saliva contamination) have been established. Clinical studies have revealed clinical outcomes of CAD / CAM resin crowns in premolars and molars. New findings, the amount of abutment tooth preparation currently recommended is excessive and needs to be reduced, were obtained by 3D digital data analysis.

Free Research Field

歯科補綴学

Academic Significance and Societal Importance of the Research Achievements

CAD/CAMレジン冠治療の臨床手技に関してエビデンスレベルの高い結論が得られた．このことは，より良いガイドラインの作成に直結し，国民の健康の保持増進に大きく寄与する．また，金属の価格高騰による代替品の必要性が高まってきている現在，本研究の成果は本邦におけるメタルフリー治療を広く普及するために必要不可欠なものである．さらに，デジタルデンティストリーの進歩を導く観点においても非常に意義深い．