Did Woman Pass the Polygraph Test to Get Her New Smile?

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Earlier this season, The Doctors met Leatha whose teeth were rotted from drinking soda, leaving her in constant pain. Leatha promised to quit smoking and consuming soda if The Doctors helped her with her soda smile. Cosmetic dentist Dr. Sean Mohtashami agreed to fix her teeth if she could pass a polygraph after 30 days holding her accountable to her promise to change her habits.