The Pain Factory Tooth Gems Information. The Pain Factory are appointed agents for smilegems and provide a wide selection of toothgems. The application is painless. Smile Gems Temporary Tooth Jewels. No drilling, Pain or damage. Can last up to one year using only crystals from swarouski components. 10 beautiful colours available. 24 carat gold designs also available. To view a small selection of our Tooth Gems please click here. Gift vouchers are also available The Pain Factory Where our pleasure is you pain.