| Project/Area Number |
25463038
|
|---|
| 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 | Tsurumi University |
|---|
Principal Investigator |
OSADA Tomoko 鶴見大学, 歯学部, 非常勤講師 (70460178)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
OHKUBO Chikahiro 鶴見大学, 歯学部, 教授 (10223760)
KOKUBO Yuji 鶴見大学, 歯学部, 学内教授 (20225410)
SUZUKI Yasunori 鶴見大学, 歯学部, 講師 (70257335)
|
|---|
| Project Period (FY) |
2013-04-01 – 2016-03-31
|
| Project Status |
Completed (Fiscal Year 2015)
|
| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
|
|---|
| Keywords | インプラント / アタッチメント / マグネット / オーバーデンチャー / インプラントオーバーデンチャー / CAD/CAM |
|---|
| Outline of Final Research Achievements |
This study evaluated the retentive forces and displacement of stress-breaking attachments after repeated loads.Seven types of stress-breaking attachmentswere placed on the implants. To simulate the chewing cycles, a load of 5 kgf was repeatedly applied up to 50,000 using a loading apparatus. The retentive force was measured by tensile test. The vertical displacement of each female was measured under 5 kgf. These measurements were repeated for 10,000 cycles. The mean values were analyzed using 1-way ANOVA followed by the Tukey’s test at a significance level of α=0.05.There were no significant differences of the retentive forces of both magnet and SBM attachments before and after loading (p>0.05).The vertical displacement of the magnet and SBM attachments showed a slight decrease after loading. On other hand, Locator attachment had no vertical displacement, and cushion type magnet attachment showed significant decrease (p>0.05).
|
