What is defined as the gingival tissue that surrounds the neck of the tooth?

The gingival tissue that surrounds the neck of the tooth is referred to as free gingiva. This tissue is characterized by its mobility and ability to form a cuff around the tooth. The free gingiva is typically about 1 to 2 mm in height and is usually located coronal (above) to the attachment of the periodontal ligament to the tooth.

It is important for maintaining the health of the periodontium, as it acts as a protective barrier against bacterial invasion and supports effective plaque control around the tooth. The junction between the free gingiva and the tooth is known as the gingival sulcus, which plays a crucial role in periodontal health. This distinction is fundamental in dental hygiene and periodontal therapy, emphasizing the importance of maintaining the integrity of the free gingiva for overall oral health.

Other types of gingival tissues, such as attached gingiva, have a different role and relationship with the underlying structures, which differentiates them from free gingiva, reinforcing the significance of understanding these terms in dental practice.