Showa University, home to the dental assistant Hanako, has improved on its original in order to make it more realistic and simpler to use. Number 2 has a silicone skin and mouth lining by doll manufacturer Orient Industry, tongue and arms with 2ยบ of freedom and more natural movements.
Hanako 2 can blink, roll her eyes, cough, choke and complain when her mouth is open too long. Showa feels that making Hanako 2 more human friendly makes the dental student more aware of treatment and will make him/her more cautious.