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Now it's time to start sculpting the new
teeth. For this I use a wax from an art store. On the picture I melt a thin
layer of wax onto the plaster teeth so it will be easier to sculpt on it. |
| Here I am sculpting a pair of crocked,
disgusting teeth. To make sure that you won't need any adhesive to make them
stay in, I always search for an undercut that will help in snapping the
teeth in. Usually it is only needed to cover the first 6-8 teeth and it will
stay in great. I think it is totally unnecessary to make a prosthetic that
covers all of the teeth as it will be very hard to speak with them. |
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When I am happy with the sculpture I use my
lighter to melt the surface a bit. Why? Because it gets so shiny that you
could never do it any other way. |
| Here is the finished sculpture. I forgot to
take a picture of the next step so I will have to explain it in text. On top
on the gums I put a piece of clay to make an overflow in the next mould.
This is an important step because when you fill the next mould with plastic
it will be much harder to fit the moulds together if you don't have an
overflow that takes care of the excessive plastic. |
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I fill a small jar with alginate and submerge
the whole thing into it. |
| Then I hold it in place until it's dry. |
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A couple of minutes later you can start
removing all of the alginate that has gotten on the top of the cast. I use a
spatula and sculptors tools to do this. Then carefully lift the teeth up and
clean out any leftover wax. |
| Here it is all separated and is looking good. |
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