How to fix defects on the lower jaw? (Fill Holes in a Mesh)

Question

I'm trying to prepare the lower part of the skull that I took from the tomography image for 3d printer in blender.

I saw some defects as seen in the picture. How can I fix these defects?

This is the image I am working on.

Defects.

hello, are they holes? in that case you can boolean small objects then sculpt a bit — moonboots, Aug 10 '21 at 16:22

moonboots · Accepted Answer · 2021-08-13T18:13:11.317

You have tools to fill the holes like:

Select all in Edit mode and Mesh > Clean Up > Fill Holes (increase the Sides value in the Operator box if necessary)
Or Switch to Edge select, don't select anything and Select > Select All By Trait > Non Manifold and F to fill.
Or, let's say that you have your object with holes (1). You can create a second object that looks like a small flatten sphere (2):

Give your object a Boolean modifier, Union mode, with the small sphere as boolean Object. Apply the modifier:

Then sculpt to smooth the surface (use the default sculpt brush, press Shift to smooth):

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