A Coaxial Dielectric Probe Technique for Distinguishing Tooth Enamel from Dental Resin

摘要: For purposes of biodosimetry in the event a large scale radiation disaster, one major and very promising point-of contact device is assessing dose using tooth enamel. This technique utilizes capabilities electron paramagnetic resonance to measure free radicals other unpaired species, fact that deposition energy from ionizing produces most materials. An important stipulation for this strategy measurements, need be performed on central incisor basically intact, i.e. which has an area enamel surface as probing tip resonator without decay or restorative care replaces Therefore, consideration how quickly assess whether sufficient measured there resin present being able characterize amount impacted. While relatively small commercially available dielectric probe could used context, it several disadvantages intended use. smaller, 1.19mm diameter 50 ohm, open-ended, coaxial been developed alternative. The performance custom was validated against measurement results known standards. Measurements were taken multiple teeth dental samples both probes. with imperfect added variability, inherent contrast between measurements robust means distinguishing two material types. smaller produced markedly more definitive terms