Final answer:
The capsule's name is not given in the provided context; it is part of a fictional journey through a sandwich, encountering various oral features such as the tongue and teeth.
Step-by-step explanation:
The capsule described in the question seems to belong to a fictional or creative storyline where the capsule is part of a journey through a sandwich. The narrative details the experience of the capsule as it enters a mouth and encounters a tongue, teeth, and various sandwich components. However, the precise name of this capsule isn't provided in the provided information or context. If the question pertains to a specific novel, book, or scenario, additional details are required to accurately identify the capsule's name.