Speech-based AI-driven Diagnostics and Rehabilitation for Oral and Oropharyngeal Cancer.

Inclusion Criteria: * diagnosed as having OC or OPC regardless of concrete pathological subtype (e.g., epithelial, adenoid, odontogenic) * without a history of other tumor-related treatment before the initial evaluation, such as radiotherapy and chemotherapy * native Chinese speakers Exclusion Criteria: * hearing impairment * history of stuttering, cerebrovascular accident, brain trauma, neurodegenerative diseases * severe dental or maxillofacial deformity * cleft lip, cleft palate, and related post-treatment status * severe cardiology conditions, breathing/pulmonology disorders, psychiatric disorders or other illnesses preventing patients from receiving standard surgery