system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
You are presented with a patient having a diffuse swelling in the neck bilaterally below the chin region. Intra orally the Lower molar is infected on left side

What is the probable source of infection?
assistant
The correct answer is  None