Get your teeth into the cutting edge of materials science
Robert P Crease discovers the true extent of materials science in a dental lab The post Get your teeth into the cutting edge of materials science appeared first on Physics World .
Dentists rely on understanding how various materials interact when fitting false teeth, bridges, and crowns. During my appointment with Dr. Albora, he required me to bite down on a polyether tray to create an imprint for the replacement tooth. The colour of my tooth was unique, so I visited Marotta Dental Studio to have it fabricated.
Inside the spacious warehouse of Marotta Dental Studio, I observed 50 technicians working on different techniques. One path involves creating porcelain-fused-to-metal teeth, which begins with making gypsum replicas of the jaw and teeth from dental impressions. Technicians must adjust the gypsum's water content to account for temperature and humidity fluctuations.
Another approach leverages digital scans, computer modeling, and 3D printing using materials such as zirconia and EMAX. Zirconia is more durable for heavy-grinding teeth, while EMAX enhances aesthetics for front teeth. Despite the complexity of these processes, prosthodontists must master materials science to excel in their field.
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