Ankyloglossia is a congenital anomaly characterized by a restrictive lingual frenulum that limits tongue mobility and function, with effects that may persist into adulthood when untreated. Although frequently identified during infancy, many cases remain undiagnosed, resulting in long-term functional limitations. Laser-assisted lingual frenectomy has emerged as a minimally invasive alternative to conventional scalpel techniques, offering improved hemostasis, reduced postoperative discomfort, and accelerated healing. This case series describes three adult patients with Kotlow Class I-III ankyloglossia managed using diode laser frenectomy. Clinical evaluation demonstrated predictable improvement in tongue mobility and function with uneventful healing. These findings support the clinical efficacy of diode laser frenectomy in appropriately selected adult patients with anatomically restrictive lingual frenula.
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