목적: Plunging ranula is a salivary pseudocyst originating from the sublingual gland (SLG) and extending into the submandibular space. Surgical approaches include transoral excision of the SLG or transcervical cyst removal, both of which can influence outcomes such as recurrence and complications. This study aimed to compare the efficacy and safety of complete versus partial SLG excision in the treatment of plunging ranula. 방법:This retrospective comparative analysis included 42 patients diagnosed with plunging ranula. Patients underwent either complete or partial transoral excision of the SLG combined with cyst evacuation. The allocation of surgical methods was sequential and non-randomized. Outcomes assessed included recurrence rates (primary outcome), operation time, and postoperative complications (secondary outcomes). 결과:Among the 42 patients, 22 underwent complete SLG excision, and 20 underwent partial excision. Both approaches avoided injuries to the Wharton’s duct and lingual nerve. Postoperative complications were minor and transient, including hematoma (5%), tongue numbness (5%), dysgeusia (9%), and dysphagia (5%), with no significant differences between the two groups (P > 0.1). Recurrence was observed in 5 of 20 patients (25%) following partial excision, whereas no recurrences occurred in the complete excision group. 결론:Complete excision of the SLG demonstrates superior effectiveness in preventing recurrence compared to partial excision, with similar rates of minor complications. This approach is recommended for optimizing outcomes in the surgical management of plunging ranula.