ADA NBDE National Board Dental Part II

Answer: A - The three ducts within the oral cavity are the parotid, frenum, and Wharton’s. The parotid duct resides opposite the upper second molar in either side of the oral cavity where they excrete saliva from the parotid gland. The frenum and Wharton’s duct are in the underside of the tongue. The frenum duct empties the sublingual gland, while Wharton’s duct empties the submaxillary gland and produces the largest volume of saliva.