Application of biomimetic tongue substrate to investigate the role of friction and vibration in sensory texture perception ScienceDirect Principles of Vibration: Tongue, Benson H.: 9780195142464: Amazon.com: Books Ludwig's angina is a rapidly progressing cellulitis of the submandibular, sublingual, and submental spaces, most commonly originating from infected lower molars. The infection spreads through fascial planes rather than forming pus initially, PDF) Mechanical vibration I