Introduction: The excessive gingival display (EGD), also known as gummy smile, is one of the most prevalent complaints from patients looking for a more esthetic smile. Among the treatment options for this problem are gingivectomy, with or without osteotomy, crown lengthening, botulinum toxin, lip repositioning surgery and orthognathic surgery — many times along with orthodontic treatment, depending on the cause of the problem. More recently, a polymethylmethacrylate-based (PMMA) cement has been used to fill the subnasal depression, in order to decrease lip movement and reposition the upper lip, decreasing the gingival exposure. Objective: This article reports a clinical case with 12-month follow-up, in which a PMMA cement was used to fill the subnasal depression, in conjunction with crown lengthening, to solve the EGD problem of a patient.
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