DINA GIESLER: The best way to describe a crown is it's a cap that we put on a tooth, and it's probably the best procedure we have to save a tooth. A patient needs a crown when the tooth has been ...

A canine tooth (aka eyetooth) fitted with a plastic optical lens before being embedded in a patient's cheek to grow a layer of tissue Here's how it works: First, the patient's canine tooth (also ...