How much attached gingiva is noted on the lingual of tooth #25?

The quantity of attached gingiva on the lingual aspect of tooth #25, which is the mandibular left canine, is assessed by measuring the distance from the mucogingival junction to the free gingival margin. In clinical practice, it is essential to have an adequate width of attached gingiva, as it plays a crucial role in maintaining periodontal health and stability.

A measurement of 5mm reflects a clinically significant portion of attached gingiva that is generally considered adequate. This level provides enough support to withstand functional forces and protects the underlying alveolar bone and periodontal structures. It is also within an acceptable range for ensuring the health of the surrounding tissues.

In contrast, measurements below this may indicate insufficient attached gingiva, which could predispose the area to recession or other periodontal issues. While more attached gingiva, such as 7mm or 10mm, may be favorable, a measurement of 5mm is still clinically relevant and indicative of a healthy gingival status relative to the functional needs of the tooth and surrounding tissue.