Patients with oral squamous cell carcinoma with depth of invasion greater than 1 cm have improved outcomes with adjuvant radiotherapy. - Matos LL; Guimarães YLM; Nunes RFE; Zantieff R; Paes ÂT; de Castro Junior G; Marta GN; Souza AT; de Mello ES; Mercante AMDC; Kulcsar MAV; Kowalski LP (International journal of oral and maxillofacial surgery, 2026)