“…3 Indications for crown lengthening include excessive gingival display, short clinical crown, restorative procedure, and management of uneven gingival margins. 4,5 Contraindications for crown lengthening include smoking, thin periodontal biotype, inadequate band of the keratinized gingiva, periodontal disease with the loss of bone support, and presence and extent of caries. 6 During treatment planning, multiple factors such as the smile line, crown-to-root ratio, position of the cementoenamel junction, width and thickness of the keratinized tissue, and health of the periodontium must be considered.…”