Crown lengthening surgery is one of the most commonly performed periodontal procedures. Multiple techniques have been used throughout the years to overcome the postoperative pain and adverse outcomes that may be associated with surgical crown lengthening. One of the most popular choices among clinicians is using different types of lasers in different techniques to overcome those adverse effects. Treatment effectiveness can be monitored non-invasively through salivary levels of Leukocyte Esterase enzyme and the stability clinical outcomes.

Inclusion Criteria:

1. Patients with an excessive gingival display of at least 3 mm
2. Age >21 years
3. At least six anterior maxillary teeth requiring ECL
4. Healthy periodontal status, indicated by a full-mouth plaque index and bleeding on probing index scores of <15%.
5. Patients with thick gingival phenotype

Exclusion Criteria:

1. Treatment sites with probing depths more than 3 mm
2. Patients with a history of smoking
3. Patients with a history of mucogingival surgery in the intended treatment area
4. Systemic conditions that could hinder tissue healing (e.g., uncontrolled diabetes and autoimmune diseases)
5. Patients undergoing active orthodontic treatment
6. Presence of any cause of excessive gingival display other than altered passive eruption