Letter to the Editor about the article published in Clinical Oral Investigations titled "The contralateral-based submental artery island flap: feasibility and oncological safety in oral cancer-related defect reconstruction" (Ma J, Zhai X, Huang M, Li P, Liang Y, Ouyang D, Su YX, Yang WF, Liao G, Zhang S. Clin Oral Investig, https://doi.org/10.1007/s00784-023-05103-1).