FREE MINI-LESSON: How to Cast Teeth - Dental Casting Video Tutorial with Mark Viniello

/
>>Mark Viniello:

>>Mark Viniello:

For this particular character,

What we're going to do, she has some pretty gnarly teeth,

so what we are going to do is take impressions of Cynthia's teeth and create dentures

that will then complete the look of the character.

We have several size dental trays here. There's a lot of dental supply places that you can

get these from.

And the first thing you want to do

is fit them in the model's mouth to make sure they are not going to choke or it's

not uncomfortable. So,

I'm gonna start with the uppers.

Is that relatively comfortable?

>>Cynthia Garza: Uh-huh.

>>Mark Viniello: K. You aren't going to choke or anything?

>>Cynthia Garza: No.

>>Mark Viniello: Ok.

And what we are going to do is mix up some more alginate, only it's going to be dental

grade alginate.

It's going to set up a little quicker.

And this is what dentists use to take impressions of the teeth.

A lot of these alginates are flavored as well,

so it's not such a horrible experience.

There's other materials you can take impressions with; there's various dental silicones and

things. Those get a little pricey.

But we are going to do this old school.

The important part about

doing dental casts is getting all the information you want, the gum line,

you want to make sure you have as much information as you can

to create the dentures.

So you do it a little different than some dentists need.

That some dentists do.

This is a product that is similar to the life-casting alginate,

that you can add water to if it is a little thick. Or...

You can, it's not like the cast, when Cleve was mixing the hydrocal,

we can not

add more water after it has already been mixed.

If you have mixed it to thick, you're kind of stuck.

Another thing to keep in mind when you are doing any type of dental impressions or things

of that nature

is to ask your model do they have any type of veneers or bonding. I mean it's always

important to know if there is real dental work in there. That may want to

choose your decision whether or not you actually go through with this or not.

Make sure there is nothing that can be affected by the impression material, a good note, a

good precautionary note to have.

This is an eyeball thing. There is also a little scooper in there; you can do one scoop

of alginate to water.

Ok, Cynthia, hold your teeth, lips out again here for me.

Ok, open your mouth.

K. Bite down

and then pull your lip over the top.

There you go.

(Laughs) >>Cleave: If you're okay... say something. (laughs)

Once the alginate has set, you're going to take the tray and give it a little twist.

Sometimes it is good to have your model do it.

To give it a little twist and you'll feel the suction break.

Let's see.

Yeah. We have a very good cast.

That is the impression of her teeth and we have the gum line and all the, enough to do

a good model. You alright?

>>Cynthia Garza: Uh-huh.

>>Mark Viniello:

Sometimes when you do this, some people's gums bleed and you just have a little cup

of hydrogen peroxide standing by when that happens.

That's happened to me once or twice as well.

>>Mark Viniello:

We're gonna pour a type of a dental stone.

This is called Die Keen;

It's a very hard,

very accurate

plaster, essentially.

And what we are going to do is mix it like we did the hydrocal

and then we are going to pour it in the negative and that'll create a positive model.

See how the material is moving and how it'll...

work its way in to all the details.

Alright, so we are going to start the lowers now.

Even if you are doing the dentures, it looks like we are doing both sets here, but even

if you're doing dentures for the uppers it is important to get both teeth

and you'll typically see two trays.

This one is for uppers.

This one is for lowers.

You want this one for the lowers to make room for the tongue.

So, that is a good way to, you want the roof of the mouth and then you want an area for

the tongue. So that is a good thing,

Uppers. Lowers.

So we have already fit

the lowers in Cynthia's mouth. These will work good and

we're going to start mixing the alginate.

Ok, Cynthia, same deal.

Alright.

Alright. So we're gonna do a quick,

well sometimes the model can do it, where you do a twist.

>>Cynthia Garza: Thank you.

>>Mark Viniello: Nice.

Now we have a nice cast of the lower teeth.

I'm taking a brush right now and I'm actually poking the Die Keen in.

Especially in the front lowers, I mean those are very thin and you want to make sure that

you

you get as much detail, or you get all the detail

for when we put these two together.

You want to ensure that you have a good bite.

Make sure you have a good build up too on these, because these will probably get sunk

in a base

and you want to make sure you have enough

material that you are not going to lose any gum line

or any of the teeth. So you wanna

build it up a little bit higher.

And again, you can always carve down.

I think I'll let that settle a bit more.

>>Mark Viniello:

Very carefully peel away

and there's our girl's teeth.

So you can see too, that we got all the

the gum information, the little

muscle that is like right between the teeth. That's all important to have.

Because you've got to account for that when you do you sculpture.

That will sink in the base

like so.

I'll get this out of the way.

You also want to be aware that you don't wanna

to do anything that is going to pry or put any stress on it because it is very easy,

especially with the lowers

to just chop the teeth off,

bust the teeth off. And you'll see too like the hand cast,

we got fantastic detail.

Cynthia has a permanent retainer

on her lower teeth which didn't affect the cast but if you look,

you can see that we got all that information as well;

which is important if we're gonna make dentures for her, you take that into account

that there is a bridge there.

Vocabulary

Expressions / Collocations