The Logo project has been done for an upcoming Paediatric Dentist clinic in Mathura. Since the brand deals with children and is situated in Mathura, I've used Little Krishna's mouth as a metaphor because he was born there.
Little Krishna known for his mischief, was complained about to his mother for eating mud. When Yashoda, Krishna's mother, confronts him to open his mouth, she sees the space and the whole of all creations in there. This event is also called the Vishwaroop darshan.