The word Teth is misspelled against Teeth, a noun meaning "pl. of Tooth."
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Teeth has double "ee" is mispronounced as "e"
Remember double 'EE' in between the strings T & th which should not be misspelled with single 'E'
Wrong Spelling:  T-e-th 
Correct Spelling:  T-ee-th 
Explore spell check of Teeth to spell without errors.