| Project/Area Number |
22592192
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Dental engineering/Regenerative dentistry
|
|---|
| Research Institution | Showa University |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
YAMAMOTO Masato 昭和大学, 教養部, 准教授 (50277844)
HOTTA Yasuhiro 昭和大学, 歯学部, 講師 (00245804)
MIYAZAKI Takashi 昭和大学, 歯学部, 教授 (40175617)
|
|---|
| Project Period (FY) |
2010 – 2012
|
| Project Status |
Completed (Fiscal Year 2012)
|
| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2010: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
|
|---|
| Keywords | 歯科医用工学 / 再生歯学 / ジルコニア / セラミックス / 接着 / 表面改質処理 / シリケート処理 / コンビネーション処理 / プライマー処理 / レジンセメント / ジルコニアセラミックス / 表面処理 / 表面改質 / 接着強さ / レジン前装クラウン |
|---|
| Research Abstract |
The aim of this study was to investigate the highest bonding strength and superior bonding durability to partially stabilized tetragonal zirconia (Y-TZP) for coping material of dental prostheses.The surface of Y-TZP were treated by no modification (NMD), sandblasting by alumina particles (ASB), and tribochemical (TBC) treatment+ silane coupling agent(SLC). Two phosphate acid ester monomers (AZ: AZ primer, EP: Epricord) were applied to each surface modification followed by application of resin-based luting cement (Rely-X ARC). Bonding specimens were placed in deionized water at 37℃ and stored for 24 h. The other groups were subjected to 30,000 cycles of a thermal stress for the durability test. Shear bond tests were done using a universal testing machine at 1 mm/min. Shear bond strengths of combination treatments using EP and AZ on TBC treatment after thermal stress showed no significant difference (p>0.05) compared with those of storage after 24 h. Combination treatment using phosphoric acid ester monomer, especially for EP, could achieve a durable bond, and was suitable surface treatment for enhancement of bonding characteristics to Y-TZP.
|
