How can i clean irregular few group of vertices in sculpting? During sculpting, cause I use only a subdivided cube, it happens that few groups of vertices generate this type of irregularity so that I can't smooth, decrease or refill it. How I could remove this irregularity to continue to shape it? Thanks for helps
Nevermind, I resolved it by myself:
These irregularity are simply bad topology, or rather accumulated vertices that are stacked after an excessive rearrangement of an initial unique mesh. The result is the tangling of groups of vertices that create hollows, ridges and high density of vertices that are hard to handle, and they stay on the bottom.
The use of tools like flatten, smooth, inflate and draw are useless, and also the simplify tool is not helpful.
SOLUTION:
Finally, the direct solution is:

Use in edit mode the tool bisect and trim the piece that has irregularity;
Delete this;
Use a new mesh to sculpt;
End.