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1 Miami Valley Laboratories, The Procter & Gamble Company, Cincinnati, Ohio
A precision sectioning device and a general laboratory cutter for hard tissues have been described. The basic principle consists of running a circular steel saw blade at moderate speeds with a precision motor while feeding the sample to the saw with some appropriately precise method. Using such a technique, whole undecalcified teeth can be sectioned routinely at 40 or 50 µ thickness and dentin occasionally at 10 µ A thickness. Complete rat jaws and attending soft tissues imbedded in methyl methacrylate can be sectioned in their entirety as thin as 25 µ.
Submitted on July 17, 1961
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