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Use of PIXE/PIGE for sequential Ca and F measurements in root carious model
K Yagi1, H Yamamoto1, R Uemura1
1Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan.
Scientific Reports
|October 19, 2017
Summary
A new method using proton induced X-ray/gamma-ray emission (PIXE/PIGE) effectively tracks mineral changes in root caries. This technique aids in understanding caries development alongside traditional methods.
Area of Science:
- Dental Research
- Materials Science
- Analytical Chemistry
Background:
- Conventional evaluation of caries progression relies on mineral density changes via transverse microradiography (TMR).
- Emerging technologies offer advanced analytical capabilities for studying dental tissues.
Purpose of the Study:
- To evaluate the effectiveness of in-air micro proton induced X-ray/gamma-ray emission (PIXE/PIGE) for investigating root caries development.
- To establish a multi-elemental sequential measuring method for analyzing mineral dynamics in carious lesions.
Main Methods:
- Utilized in-air micro PIXE/PIGE to analyze elemental distributions and concentrations in human root dentin.
- Developed a sequential measuring method for dynamic analysis of calcium (Ca) and fluorine (F) in carious lesions.
Main Results:
- Successfully established a multi-elemental sequential measuring method using in-air micro-PIXE/PIGE.
- Identified dynamic distributions and concentrations of Ca and F in human root dentin affected by caries.
Conclusions:
- In-air micro-PIXE/PIGE is a potentially advantageous technique for studying carious development.
- PIXE/PIGE can complement conventional methods like TMR and micro-computed tomography (µCT) for comprehensive caries analysis.
