Usually we have seen a two-step procedure (Type 1) with first the front (and perhaps midscalp), and then a separate procedure for the crown.
Recently, however, I have seen clinics do another kind (Type 2) of two-step procedure. First the front is packed well, the midscalp and crown with limited density, and then in a second procedure the midscalp and especially crown are filled in.
I am seeing examples where a similar amount of grafts are used in the first session (around 4000) and second session. Just how they are used is different.
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I can think of a pro of Type 2 which is that the whole scalp is covered to some degree despite not good density. I guess that would make the period up until the second step a bit more enjoyable?
In terms of cons, I wondered if it was easier to start with a blank slate for crown, rather than have to pack in density? If so, then that might be the reason for Type 1?