Adding Teeth in Zbrush

Today I have been working on adding teeth and a tongue to my model so that I can create facial expressions. After my mistake of sculpting the hair on the head I had learnt my lesson to never work on the same subtool, therefore I created separate ones for both my teeth and my tongue. I recently discovered what the IMM brushes do and to save myself time I used the toon teeth from within them. Each IMM brush contains a range of different meshes already created by other users and some of the pre loaded ones include features from a dragon, human and a toon. I added the toon teeth to give me a basis to work on as I was running out of time to create my model. I then sculpted onto them and manipulated them to give me what I wanted for Cadi's teeth. I went on to add a tongue on a separate subtool. To do this I clicked insert, subtool and then added a sphere. I dynameshed the sphere and then warped in into the shape I wanted using the move tool, smoothing it off afterwards.