Provisional Restorative Materials

MATERIAL

Customized Provisional (Bis-Acryl)

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How Supplied

Cartridge

Composition

Dimethacrylate polymer

Armamentarium

• Restorative instruments
• Impression material
• Impression tray
• Dispensing gun
• Acrylic cartridge with mixing tip
• High-speed handpiece
• Finishing bur
• Low-speed handpiece
• Round bur
• Temporary cement

Directions

1. Take impression of tooth being restored before tooth is prepared. Impression material used depends on how long the tooth will be in a temporary provisional.

• Alginate can be used to impress for a temporary intended to be worn for a short time.
• Another impression material, such as putty, can be used if the temporary will be worn for a longer time. The putty impression can be stored for a longer period without distortion in case the temporary needs to be remade.
2. For a second time, try in the impression to ensure the impression seats properly prior to dispensing acrylic material.
3. Dispense a small amount of acrylic on tray or gauze square, and then continue to dispense acrylic material into the portion of the impression where the tooth was prepared. Ensure tooth is filled to the brim or the margin of the prepared tooth.
4. Reseat impression intraorally with acrylic material in it. Allow impression to remain seated until the small bit of material on tray or gauze square is set.
5. Remove impression from mouth and remove provisional from impression.
6. Reseat provisional on prepared tooth to check fit.
7. Remove flash from margin of provisional and reseat to ensure provisional covers prepared tooth and interproximal contact areas are sufficient.
8. Check occlusion with articulating paper and adjust any areas where provisional is too high.
9. Fill provisional with temporary cement and reseat on prepared tooth.
10. Remove excess cement after temporary cement has set.

 

image Special Notes/Helpful Hints • A custom provisional is also known as a temporary provisional. • A temporary is intended to be temporary; the material used to make the temporary is not strong enough to remain in the mouth for an extended time.

MATERIAL

Heat-Activated Dental Acrylic Resins

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From Hatrick, Eakle, and Bird, 2011.

How Supplied

Powder and liquid

Composition

Acrylic, methyl methacrylate

Armamentarium

• Restorative instruments
• Heat-activated dental acrylic resin
• Mixing bowl
• Mixing spatula
• Hot water bath

Directions

This dental material is used in a dental laboratory setting and arrives to the dental office as a custom order.

1. Mix powder and liquid together to a dough consistency.
2. Mold dough into desired shape.
3. Heat material in temperature-controlled water bath to polymerize material for 8 hours.

 

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Apr 6, 2015 | Posted by in Dental Materials | Comments Off on Provisional Restorative Materials
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