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Page 20 of 28                                      Farber et al. Plast Aesthet Res 2020;7:72  I  http://dx.doi.org/10.20517/2347-9264.2020.152












































               Figure 16. Filler injection depths. Blue areas illustrate depths of filler injection from intradermal (top), to various levels of intramuscular
               (middle three), and preperiosteal (bottom)

























                       Figure 17. Filler for lateral brow elevation. Location and direction of lateral brow filler injections for brow elevation

               injecting along the white roll, within the vermilion and below the commissure. Some patients also
               benefit from philtral injections. Marionette lines and the pre-jowl sulcus can be treated by a superficial
               subcutaneous injection of a medium cross-linked filler material. Finally, a recessed chin can be augmented
                                                                                                     [50]
               using a supraperiosteal bolus of a highly cross-linked filler material at three sites across the lower chin .
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