This randomized controlled clinical trial evaluated the effectiveness of butyl-cyanoacrylate tissue adhesive compared with conventional sutures for stabilization of free gingival grafts. Twenty-four patients with insufficient keratinized tissue were randomly assigned to either cyanoacrylate or suture stabilization following free gingival graft surgery. Clinical parameters, graft dimensional changes, patient-reported postoperative discomfort, and operative time were assessed over a 6-month follow-up period.