Design of Glass Fiber Reinforced Posterior Resin Bridge

2015 Fiscal Year Final Research Report

• Project/Area Number: 25463033
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Prosthodontics/ Dental materials science and
• Research Institution: The Nippon Dental University
• Principal Investigator: GOMI HARUNORI 日本歯科大学, 生命歯学部, 教授 (00235003)
• Co-Investigator(Kenkyū-buntansha): SHINYA AKIKAZU 日本歯科大学, 生命歯学部, 准教授 (60440054) ; KURODA SOICHI 日本歯科大学, 生命歯学部, 助教 (80710798)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 歯学 / グラスファイバー補強 / 臼歯部レジンブリッジ

Outline of Final Research Achievements

In Japan, posterior teeth missing are restored with the bridge covered by resin material with metal coping. We focused on the fiber enforced resin bridge as an advanced method. In the first step, we could confirm that fiber net enforcement allows us to increase fracture toughness of the retainer. Then three designs for reinforcement were tested. The modality of enhancement showed different level of achievement. Design 2 (fiber reinforcement at bottom of the connector) and 3 (fiber net were applied to the abutment along with design 2) represents higher resistance than Design 1 (resin alone). Fiber reinforcement is an effective way to increase toughness of the bridge.
This suggests us that 3 unit posterior bridge may be become guidelines for clinical application.

Free Research Field

医歯薬学