What is the primary purpose of the cervical line?

The primary purpose of the cervical line, also known as the cementoenamel junction (CEJ), is to mark the division between enamel and cementum. This anatomical feature is significant in dentistry as it indicates where the enamel, which covers the crown of the tooth, meets the cementum, which covers the root. The cervical line is important for various clinical considerations, including determining the health of the periodontal tissue and assessing areas for potential caries or sensitivity.

Understanding the location and significance of the cervical line helps dental professionals evaluate the overall condition of a tooth and during procedures such as prophylaxis or restorative work. Therefore, recognizing its role as the junction between different types of dental tissues is fundamental in practice.