At CrownBuyers we evaluate the precious metal content in your gold tooth using X Ray Flourescence Spectrometry (XRF). As outlined in the above video from Thermoscientific, the process is as follows:

Separate. Remove metal from remaining tooth matter.

gold cap

Example of gold dental crown removed from tooth

sorted dental scrap

An assortment of dental crowns with gold and porcelain fused to metal content

Gold caps or gold crowns are small but can have good value

Gold caps or gold crowns are small but can have good value

Weigh. Place separated metal on scientific scale. Examples of a typical gold scale:

Precious metal scale

Highly sensitive scales are used in precious metals refining, because every gram counts

X Ray. Place the gold tooth/bridge on a neutral surface beneath the handheld XRF, which returns blend of various metals by percentages. Other examples of XRF spectrometry used in measuring the precious metal content of dental crowns, caps and bridges:

 

Spectrometers clearly and accurately identify the range of materials in each test

Spectrometers clearly and accurately identify the range of materials in each test

A variety of tools and systems are used to assess value. Specialized equipment and processes make a huge difference in your gold evaluation.

A variety of tools and systems are used to assess value. Specialized equipment and processes make a huge difference in your gold evaluation.

XRF technology is used in the mining industry for on-site sampling and testing for day-to-day work.

XRF technology is used in the mining industry for on-site sampling and testing for day-to-day work.

Evaluate. Multiply percent gold content by metal’s weight, then the grams by the current, unrefined gold value. Most crowns average 15 karat in purity and gold price varies daily.

Gold is a prized commodity traded globally and is affected by many factors. Thus, prices vary by the minute. On average, gold has risen in value over the past 10 years.

Gold is a prized commodity traded globally and is affected by many factors. Thus, prices vary by the minute. On average, gold has risen in value over the past 10 years.

If you’ve got an appetite for more on the how and why of X Ray Flourescence, feast your scientific mind on this: http://en.wikipedia.org/wiki/X-ray_fluorescence