(MILWAUKEE) - A dentist who pulls teeth, does root canals and cleanings may not seem all that unusual.  However the dentist we met recently also fixes beaks and sticks his hands into the mouths of lions, tigers and bears. 

It turns out one of America's top zoo dentists has been making the rounds at the Milwaukee County Zoo for nearly 3 decades.

On CBS 58 Sunday Morning Tori Bokios learns the secret to helping animals achieve their wild smiles with Dr. John Scheels.

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