Clinical attachment loss
| Clinical Attachment Loss | |
|---|---|
| Other names | Level / Loss of Attachment (LOA) |
| Specialty | Periodontology |
Clinical attachment level (CAL), also known as clinical attachment loss, is a periodontal parameter used to determine the position of the periodontal supporting tissues in relation to a fixed point on the tooth, which is the cementoenamel junction (CEJ). Clinical attachment level represents the loss or gain of attachment that occurs due to periodontal disease, treatment, or other conditions such as recession or inflammation.