CREATE TABLE table_204_625 (id DECIMAL, "model" TEXT, "availability" TEXT, "introduced" TEXT, "length of use" TEXT, "last of whiteness" TEXT)

which discontinued product was introduced the same year as crest whitestrips 3d vivid ?
SELECT "model" FROM table_204_625 WHERE "model" <> 'crest whitestrips 3d vivid' AND "introduced" = (SELECT "introduced" FROM table_204_625 WHERE "model" = 'crest whitestrips 3d vivid')
SELECT "model" FROM "table_204_625" WHERE "introduced" = (SELECT "introduced" FROM "table_204_625" WHERE "model" = 'crest whitestrips 3d vivid') AND "model" <> 'crest whitestrips 3d vivid'