Final answer:
LI, or Lingual Incisive, enters the lingual aspect of the gums in the lower anterior region.
Step-by-step explanation:
The student's question is asking about which part of the gums LI enters. In the dental anatomy, LI stands for Lingual Incisive. It refers to a nerve that enters the lower anterior region of the gums, specifically the lingual aspect of the gums. It provides sensory innervation to the lower teeth and gums in that area.