| Project/Area Number |
26670844
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Prosthodontics/ Dental materials science and
|
|---|
| Research Institution | Aichi Gakuin University |
|---|
Principal Investigator |
ABE TOSHIYUKI 愛知学院大学, 歯学部, 講師 (80231116)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
HASHIMOTO Kazuyoshi 愛知学院大学, 歯学部, 准教授 (90201706)
NAKAGAWA Masayoshi 愛知学院大学, 歯学部, 助教 (70319200)
|
|---|
| Project Period (FY) |
2014-04-01 – 2016-03-31
|
| Project Status |
Completed (Fiscal Year 2015)
|
| Budget Amount *help |
¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
|
|---|
| Keywords | 研磨 / ショット研磨 / 歯冠修復 / クラウン / ショットブラスト / 歯冠補綴 |
|---|
| Outline of Final Research Achievements |
The purpose of this study was to evaluate the suitability of shot polishing of crowns for clinical use.Crowns for samples were polished using a shot polishing machine. One more type of crown prepared with the conventional method using silicon points was used as a control. Dentists in our university judged the quality of the polishing using the Visual Analog Scale. Shot polishing can be used to polish crowns, including pits and fissures.The polishing time for a crown was counted. Centrifugal shot polishing takes only 2 minutes.Possibilities of reducing or deforming were examined using plate-like specimens in imitation of the thin parts such as cast crown margins. The plate-like specimens made of 18K were fabricated. Two kinds of surface were made. One type was polished by sandblasting. The second type was polished with the shot polishing machine. The margin reductions were measurement using a microscope. No statistically significant difference in margin reduction was noted.
|
