Related Clues:

• (Unnecessarily) different from what one is used to
• What emerged after teething troubles perhaps was in vanguard of the ultramodern
• Modern and familiar
• Latest requirement to protect tooth during walk, oddly
• Freshly developed and unfamiliar
• Modern England, few changes
• Unfamiliar milk tooth, possibly, came first
• Modern teething result went first
• Modern and gimmicky
• Modern and unfamiliar
• Short amphibian with teeth seen around lake? That's novel
• Modern, disparagingly