Possible Clues:

• Note ascending space vehicle -- there's a rotating mechanism
• Small stone lodged in baby tooth
• Small pot preserving queen's tooth
• Bicycle part
• Son quietly leaves tooth
• Toothed part of a bicycle
• Something like gear expert removed from space missile
• Tooth present briefly in place where it should be
• Pre-stock exchange? On your bike!
• Chain-driven toothed wheel