Horizontal animation deformity as unusual complication of neurotoxin modulation of the gummy smile.

Horizontal animation deformity as unusual complication of neurotoxin modulation of the gummy smile. Dermatol Online J. 2019 Aug 15;25(8): Authors: Chen G, Oranges CM, Giordano S, Huang R, Wang W Abstract Injections of botulinum toxin type A represent the most common nonsurgical cosmetic treatment worldwide. The authors report a case of dynamic horizontal wrinkling in the upper lip that appeared after botulinum toxin type A injections to treat gummy smile associated with nasal alar base reduction, in a 28-year-old woman. The anatomic features and pathogenic mechanism underlying this unusual complication are analyzed and discussed. PMID: 31553868 [PubMed - in process]
Source: Dermatol Online J - Category: Dermatology Authors: Tags: Dermatol Online J Source Type: research