Base plate material

[orthoace]

Hi

Please, can anyone let me know what material is best to use for base plate for denture try-in.

I haven't made dentures since college a long time ago so I am wondering does everyone now make light cure bases instead of using shellac or just a wax sheet.

Do labs use light cure bases for all their work from their basic dentures to their highest quality dentures?

Thanks in advance,

 

[Doris A]

Light cure baseplates for all of our dentures.

 

[orthoace]

Light cure baseplates for all of our dentures.

Hi Doris,

Thanks for your reply,

Is light curing baseplates worth the extra cost through improved accuracy then using just wax or shellac or is there much of a difference expense wise?

 

[Thedentureman]

Primo base

 

[Doris A]

Hi Doris,

Thanks for your reply,

Is light curing baseplates worth the extra cost through improved accuracy then using just wax or shellac or is there much of a difference expense wise?

Yes, they are definitely worth the cost, and they aren't expensive. Wax and shellac aren't stable and are not accurate at all.

 

[orthoace]

Primo base

Primobase looks great but seems a higher cost then regular light cure bases, do you think it's worth using primobase on all cases for the improved accuracy or just using it on high quality cases?

Thanks,

 

[JMN]

Hi Doris,

Thanks for your reply,

Is light curing baseplates worth the extra cost through improved accuracy then using just wax or shellac or is there much of a difference expense wise?

Definately not Doris, but wanted to throw my 2cents in the pot.
It's around $1 a sheet. And it will not deform under pressure, or from rough handling, or from heat. All of which will happen to most rims and try ins. Especially on a long p/u del run in summer.

 

[orthoace]

Definately not Doris, but wanted to throw my 2cents in the pot.
It's around $1 a sheet. And it will not deform under pressure, or from rough handling, or from heat. All of which will happen to most rims and try ins. Especially on a long p/u del run in summer.

Hey

Thanks for the replys.

Probably a stupid question but just wondering can you use light curing special tray material for denture bases? - I notice that "special tray" is stamped on the Magilight box that I have with no mention of using it for base plate - is there any health reasons why the special tray material is not suitable for denture base plate?

 

[JMN]

Hey

Thanks for the replys.

Probably a stupid question but just wondering can you use light curing special tray material for denture bases? - I notice that "special tray" is stamped on the Magilight box that I have with no mention of using it for base plate - is there any health reasons why the special tray material is not suitable for denture base plate?

The tray material is certified for intraoral use, so why not. I'm an odd duck too though, I toss the baseplate before processing so the baseplate is not a permanent integral part of a denture I make. I use a dup model that has blockouts were any needed so I can save my orig model in a pristene state for final checks.

 

[Doris A]

Hey

Thanks for the replys.

Probably a stupid question but just wondering can you use light curing special tray material for denture bases? - I notice that "special tray" is stamped on the Magilight box that I have with no mention of using it for base plate - is there any health reasons why the special tray material is not suitable for denture base plate?

I googled Magilight, and yes you can use it for baseplates. It says tray material because you can also use it for custom trays.

 

[droberts]

Keystone .100 Clear Splint material 5x5, vacuumed formed.
Can easily block out cast.
Easy for lab tech / doctor to trim and adjust.
Cost effective over light cured products.

 

[Thedentureman]

Keystone .100 Clear Splint material 5x5, vacuumed formed.
Can easily block out cast.
Easy for lab tech / doctor to trim and adjust.
Cost effective over light cured products.

Do you have a special trick I always have a hard time with the borders getting too thin with suck down material.

 

[orthoace]

Keystone .100 Clear Splint material 5x5, vacuumed formed.
Can easily block out cast.
Easy for lab tech / doctor to trim and adjust.
Cost effective over light cured products.

Hey droberts, that's interesting; vacuum formed base plates, although i'd imagine it would me difficult to get down into the sulcus area (sometimes 3-4mm depth) unless you use a tool to do it?

I suppose ideally a pressure former would be best.

 

[droberts]

To answer both questions above. Not many issues with border thickness IMO,
mandibular arches in the retro molar pad is the longest draw.
I have found that if the cast is cold ( refrigerated ),they suck down tight and work
very well. Its backwards as to like separator to a hot cast. Cold liquid draws into
a hot cast, where as the hot plastic draws to the cold cast.

 

[JKraver]

Hey

Thanks for the replys.

Probably a stupid question but just wondering can you use light curing special tray material for denture bases? - I notice that "special tray" is stamped on the Magilight box that I have with no mention of using it for base plate - is there any health reasons why the special tray material is not suitable for denture base plate?

Maybe I misunderstood you can not use the light curing special tray material as a denture base. You can use it for a denture base plate, as you throw it away at boil out.

 

[kcdt]

Hi Doris,

Thanks for your reply,

Is light curing baseplates worth the extra cost through improved accuracy then using just wax or shellac or is there much of a difference expense wise?

Yes, it's worth it. The stability and fit directly correlate with accuracy bite registration and trial.

 

[kcdt]

Keystone .100 Clear Splint material 5x5, vacuumed formed.
Can easily block out cast.
Easy for lab tech / doctor to trim and adjust.
Cost effective over light cured products.

Not even close to me. Vacuform is in my opinion slightly better than shellac.
It is possible to make an outstanding ing one, but the vast majority I've seen are crap.
I've just never needed to squeeze the price point over a dollar.

 

[rkm rdt]

It doesn't make sense to vacuum form unless you block out the under cuts. Then you have too much waste material.
LC is passive and you don't need to block out if you can remove prior to lc.

 

[orthoace]

Maybe I misunderstood you can not use the light curing special tray material as a denture base. You can use it for a denture base plate, as you throw it away at boil out.

Yes sorry I ment to say Denture base plates

 

[orthoace]

Just wondering what thickness should the denture base plate material be at the edges of the fitting surface when finished and also what bur is best to use to smooth edges of the light cure material?

I was using grey acrylic polishers that were wasting like a hot knife through butter!