Body parts goatee thankfully hides

• They might be whitened
• Gear components, often
• Molars, canines, etc.
• Saws and laws have them
• Molars, canines, bicuspids, etc
• Molars and fangs
• Molars, for example
• Choppers that don't take off

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Tooth \Tooth\ (t[=oo]th), n.; pl. Teeth (t[=e]th). [OE. toth,tooth, AS. t[=o eth]; akin to OFries. t[=o]th, OS. & D. tand, OHG. zang, zan, G. zahn, Icel. t["o]nn, Sw. & Dan. tand, Goth. tumpus, Lith. dantis, W. dant, L. dens, dentis, Gr. 'odoy`s, 'odo`ntos, ...

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
plural of tooth (n.). In reference to laws, contracts, etc., "power of enforcement," from 1925. To be armed to the teeth is from late 14c.