Neutron Activation Analysis of Microleakage
نویسنده
چکیده
Neutron activation analysis with dysprosium as a tracer was employed to determine quantitatively the microleakage around the restorations of an experimental hydrophobic composite, as well as a commercial composite. Only a negligible uptake of tracer was obtained for the experimental composite, whereas a five-fold uptake was recorded for the commercial composite. Capillary penetration of fluid around a restoration could be greatly reduced by using a hydrophobic composite.
منابع مشابه
Improved method of neutron activation analysis for microleakage studies.
A quantitative method for studying microleakage in vivo and in vitro has been presented by Going, Myers, and Prussin' and Going2; they used neutron activation of manganese 55. Teeth restored in vitro or in vivo were soaked in an aqueous solution of a nonradioactive Mn salt by use of a test tube and a latex isolator, respectively. After immersion, the teeth restored in vivo were extracted. The w...
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