Knowledge of diagnostic and risk factors in oral cancer: results from a large-scale survey among non-dental healthcare providers in Northern Germany.

Introduction: A survey was conducted to assess the level of knowledge on oral cancer among different medical fields, in particular about diagnostic items and risk factors.

Material And Methods: A self-administered questionnaire was mailed to physicians from various fields, such as otorhinolaryngology, general practice, internal medicine, and dermatology.

Results: 388 of the 2,952 questionnaires were returned (13.