Preoperative evaluation of tumor depth of invasion in oral squamous cell carcinoma with intraoral ultrasonography: a retrospective study
Objective: The aim of this study was to evaluate the efficacy of preoperative intraoral ultrasonography (US) in the assessment of tumor depth of invasion (DOI) in oral squamous cell carcinoma (OSCC). Study Design: Records of 32 patients with biopsy-proven OSCC who underwent preoperative intraoral US were retrospectively reviewed.