Final answer:
The dental arch is divided into six sections called sextants, a term used in dentistry for precise communication and treatment planning.
Step-by-step explanation:
The dental arch is often divided into six sections called sextants. This term is specific to dentistry and is used to help dentists, hygienists, and other oral health care professionals communicate more clearly about the location of teeth and specific areas within the mouth. Unlike the abdominal cavity, which can be divided into four quadrants or nine regions for the purposes of identifying pain or masses, the division of the dental arch into sextants allows for a more detailed discussion of oral health and treatment planning.