What does the term "sulcus" refer to in dental terminology?

The term "sulcus" in dental terminology specifically refers to the space between the free gingiva (the part of the gum that is not attached to the tooth) and the attached gingiva. This space is critical in periodontal health, as it is where the gums create a natural pocket around each tooth. The depth of the sulcus can be indicative of gum health; a healthy sulcus is typically about 1 to 3 millimeters deep.

Understanding the concept of the sulcus is vital for dental professionals as it helps in assessing gingival health and diagnosing periodontal diseases. The term emphasizes the importance of the gingival attachment and the overall dynamics between the gums and the teeth, making it a key element in dental examinations and treatments.