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Cracks on your teeth are hard to detect if they are cracks on the mesial or distal surfaces (surface of the tooth closest to and farthest from the midline respectively) through x-rays. Please check this link for illustrations and very good explanations from the University of Maryland dentistry department. The different methods on the detection of cracks as ...


Never say never indeed! There are a few sorts of answers to this question 1) Bacteria can develop resistance. These researchers did a screen for Staph and Pseudomonas which survived a detergent/soap treatment and indeed were able to select for many strains. I'm not sure that their explanation of why they are resistant is a final answer, especially for the ...

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