Sentence:  "dental percussives", produced by clicking maxillary and mandibular teeth together at different speeds, but typically as a <WSD>"bidental</WSD> chatter", that is, in a repeated rapid way (as in chattering from cold or fear); with <WSD>bidental</WSD> percussives resonating in the oral cavity musical notes can be played up and down the scale in various keys. 
Meaning of the word marked with <WSD> tags:  articulated with both the upper and lower teeth.