Which term designates the surface of the mandible towards the tongue?

The correct term that designates the surface of the mandible towards the tongue is "lingual." In dental terminology, the lingual surface refers specifically to the aspect of the teeth and mandible that faces the tongue. This designation is essential for clear communication in dentistry, particularly when discussing the orientation and health of teeth, as well as during procedures like extractions, restorations, or orthodontic treatments.

The term "palatal" refers to the surface of the upper teeth (maxilla) that faces the palate or roof of the mouth, not the mandible. "Occlusal" describes the biting surfaces of the teeth where they come together, particularly in the molars and premolars, while "vestibular" pertains to the surface of the teeth that faces the cheeks or lips. Each term is used to indicate specific areas of the mouth and teeth, aiding in effective diagnosis and treatment planning in veterinary dentistry.