How to Make a Pair of Fake Teeth

Written by joanne robitaille
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How to Make a Pair of Fake Teeth
You'll need three separate moulds to make one set of fake teeth. (False teeth image by Jevgenijs Kosarevs from Fotolia.com)

False teeth aren't just for people who've lost their teeth. While dentures are the most common use of false teeth, others use them for more cosmetic reasons. They're used in child beauty pageants to hide missing teeth and as a part of special effects make-up to alter the look of an actor's teeth. Making fake teeth is a meticulous job in terms of colouring the acrylic used to make the false teeth and ensuring a perfect fit.

Skill level:
Easy

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Things you need

  • Dental tray
  • Alginate
  • Plaster of Paris
  • Coping saw
  • Wax
  • Lighter
  • Sculpting tools
  • Clay
  • Plastic container
  • Spatula
  • Release agent
  • Rubber gloves
  • Acrylic fluid
  • Acrylic powder
  • Warm water
  • Rotary cutting tool
  • Toothpaste

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Instructions

  1. 1

    Make a mould of your teeth. Prepare the alginate as per the manufacturer's instructions and fill a dental tray with the mixture. Place the tray into your mouth while sitting upright and bite down. Leave the tray in place for a few minutes to give the alginate time to set. Remove the tray, wiggling it a bit to break the vacuum if it's stuck.

  2. 2

    Fill the mould with plaster of Paris. Coat the inside of the mould with a release agent to make it easier to separate the two parts later. Mix the plaster according to the manufacturer's instructions then fill the mould entirely. Tap it lightly against the table to release any air bubbles. Leave the plaster to set for approximately 45 minutes.

  3. 3

    Separate the two moulds and remove the excess plaster. Carefully cut away the plaster using a coping saw, making sure not the damage the cast.

  4. 4

    Melt a thin layer of wax onto the plaster teeth. Use a small lighter to melt the wax until it becomes pliable. The wax should only cover the teeth portion of the cast. Sculpt the wax to create the shape of the false teeth. Cover the top of the gums with modelling clay to make an overflow. The overflow will ensure that the top portion of the plaster teeth is wider than the bottom (your gums curve inward at the top) and make it easier to fit the moulds together.

  5. 5

    Fill a small container with alginate and submerge the wax-sculpted plaster teeth into the liquid. Hold it submerged in the alginate until the liquid begins to dry. Use a spatula and sculpting tools to remove the alginate on top of the cast. Carefully remove the teeth from the mould because you'll need to use them again in Step 8. Clean up any leftover pieces of wax from the interior of the mould and the plaster teeth.

  6. 6

    Coat the plaster teeth with two to three layers of release agent. Let each layer dry fully before adding another coat.

  7. 7

    Pour acrylic fluid into the mould you made of the wax-sculpted plaster teeth. Wear rubber gloves to protect your skin. Mix it around a bit then begin adding acrylic powder into the mould to tint the colour of the acrylic. It may take a few tries to find the right combination of powders to get the false teeth the right colour.

  8. 8

    Place the plaster teeth you originally made into the acrylic-filled mould. Make sure the two moulds fit together perfectly so you don't damage the acrylic teeth you're making. Place a heavy object on top of the mould for a few minutes then leave the mould to set for approximately 30 to 45 minutes depending on the acrylic's setting time.

  9. 9

    Separate the two moulds. The false teeth will be stuck to the plaster mould so submerge them in warm water to dissolve the release agent. Be very careful while removing the acrylic teeth to ensure they don't break.

  10. 10

    Cut away the excess acrylic with a rotary cutting tool. Polish the teeth using ordinary toothpaste.

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