Tooth __ Is Used to Make Your Smile Brighter

This page is the CodyCross answer for the clue below from TV Station, Group 603, Puzzle 3 (Executive Producer).

Question is: Tooth __ Is Used to Make Your Smile Brighter

and the answer is: WHITENER

Word Meaning:

WHITENER — (countable, uncountable) Any substance used to whiten something; a bleach.

Definitions from Wiktionary.

Tooth __ is used to make your smile brighter — CodyCross Answer | CodyCross Solutions