Dental Assistant Practice Exam 2026 - Free Dental Assistant Practice Questions and Study Guide

In the Universal Numbering System, maxillary teeth are identified by numbering them from the patient's right to left, which spans from 1 to 16. This system starts with the upper right third molar (tooth number 1) and proceeds sequentially towards the upper left third molar (tooth number 16). This consistent left-to-right labeling allows for easy identification and communication regarding the teeth during dental assessments and treatment planning.

Other options pertain to different contexts or systems that do not apply to the Universal Numbering System. The left-to-right progression in the upper arch is unique to this specific numbering system, making it crucial for dental assistants and other professionals to accurately refer to teeth in a standard manner.