What is the different between anatomical crown and dental crown?

The anatomical crown and dental crown are two distinct terms used in dentistry to describe different parts of a tooth.

Anatomical crown refers to the visible portion of the tooth that is covered by enamel and is located above the gum line. It includes the entire structure of the tooth above the cementoenamel junction (CEJ), which is the boundary between the enamel and the cementum. The anatomical crown consists of the following components:

1. Clinical crown: This is the part of the anatomical crown that is visible in the mouth. It includes the enamel, dentin, and pulp chamber.

2. Radiographic crown: This is the part of the anatomical crown that is visible on dental radiographs (X-rays). It includes the enamel, dentin, and pulp chamber, as well as the underlying bone structure.

Dental crown, on the other hand, is a term used in dentistry to refer to a restoration that covers and protects the entire visible portion of the tooth, including the entire anatomical crown. Dental crowns are typically made of porcelain, metal, or a combination of both materials and are used to restore damaged, decayed, or fractured teeth.

In summary, the anatomical crown refers to the natural structure of the tooth above the gum line, while the dental crown is a人工修复体that is used to cover and protect the entire visible portion of the tooth.