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"Diente" is a form of "diente", a noun which is often translated as "tooth". "Antes de" is a preposition which is often translated as "before". Learn more about the difference between "diente" and "antes de" below.
el diente(
dyehn
-
teh
)A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
antes de(
ahn
-
tehs
deh
)A preposition is a word that indicates the relationship between a noun and another word (e.g., He ran through the door.).