A 100 micrometer-by-100 micrometer (μm) image of the tip of this tooth shows the tiny scratches which were analyzed for complexity and depth of wear features. Disclaimer: AAAS and EurekAlert! are not ...
The Penn team's micro-robots were effective at cleaning hard-to-reach surfaces. This time-lapse image shows one of their molded, helicoid-shaped robots traveling inside a tooth canal. Disclaimer: AAAS ...
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