A 66-year-old man has moderate to severe chronic periodontitis.  After scaling & root planing, he will return for #2 and 13 residual root removal (Fig.1,2).  The latter will be done in the traditional non-sterile manner except Chlorhexidine mouth rinse and Iodine application as usual.

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Xin Wei, DDS, PhD, MS 1st edition 07/25/2018, last revision 07/26/2018