A smile significantly influences perceptions of attractiveness, confidence, intelligence, and trustworthiness. One key factor affecting smile aesthetics is excessive gingival display, commonly referred to as a "gummy smile," often caused by altered passive eruption (APE) or other dental etiologies such as tooth malformations or subgingival fractures. Crown Lengthening Surgery (CLS) is a widely adopted periodontal procedure aimed at exposing more of the tooth structure for functional or esthetic purposes. First introduced by D.W. Cohen in 1962, CLS involves repositioning the gingival margin...