Blender 2.8 Sculpting splitting at edges I'm a noob I've looked all over and I don't know what to search for, so I've not had much luck, I apologize in advance. I'm using blender 2.8.

So I have an object that I want to sculpt on. Its been imported from a game.

It pulls apart from the seams even after dyntopo and I think it needs vertices added on edges that touch, that don't have vertices on them in that location, if that makes any sense.

Example 2 is just showing that there is no vertice on that edge. Is there a way to auto add vertices on edges that touch an edge that has vertices, that way I can remove doubles and have everything connected? Or am I going about this all wrong?

There are a lot of them that's why I want an easy way.

I just want everything to be connected together so I can sculpt on it and not have it splitting at the edges.
Also a noob here. A solution I found is to go to edit mode, select all the vertices around the edge of the hole, click on the button that says 'Face' in the top left, then select the fill option. Only just found it and haven't tested it too much.