What does the abbreviation PA stand for in dentistry?

The abbreviation PA in dentistry typically stands for "Periapical". In the context of dentistry, periapical refers to the area surrounding the root of a tooth, including the bone and other tissues that surround the tooth's root tip.

A periapical radiograph, also known as a PA radiograph, is a specific type of dental X-ray that provides a detailed image of the entire tooth, including the root and the surrounding bone. It is commonly used by dentists and endodontists to diagnose and evaluate conditions such as root decay, infections, and bone loss around the tooth.

PA radiographs allow dental professionals to assess the health of the tooth's root, detect any abnormalities, and plan appropriate treatments if necessary.