2013 Fiscal Year Final Research Report
Four-dimensional observation of remineralization phenomenon with carious lesion using micro CT method and laser irradiation.
| Project/Area Number |
22791847
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Conservative dentistry
|
|---|
| Research Institution | The Nippon Dental University |
|---|
Principal Investigator |
KANRI Yoriaki 日本歯科大学, 新潟生命歯学部, 講師 (40366761)
|
|---|
| Project Period (FY) |
2010-04-01 – 2014-03-31
|
| Keywords | 再石灰化 / レーザー照射 / 病理学 / 立体構築 / 初期齲蝕 |
|---|
| Research Abstract |
We clarified the caries lesion recovery by the laser irradiation on the tooth surface, using human molars with subsurface demineralization. Purpose of our study is the quality of enamel after a CO2 laser radiation. These observations are done non-destructively by means of micro CT. Sequential quantitative changes was evaluated with the time axis variation of the calcification and the degree widening range of lesion. We used the molars having a white spot caries in smooth surface for experiments. In order to observe the recovery of caries, we performed the combination of CO2 laser irradiation and sodium fluoride application to the white spot. We have observed samples in the 3D image after shooting micro CT. As results, it was a significant difference in demineralization depth in a sample of laser irradiated sample. We suggested the possibility of the tooth surface coating agent and irradiation of the CO2 laser is effective area of subsurface demineralization from this study.
|
