שֵׁן

Daniel 7:5 שִׁנַּ֑הּ tooth its

Suddenly another beast appeared, which looked like a bear. It was raised up on one of its sides, and it had three ribs in its mouth between its teeth. So it was told, ‘Get up and gorge yourself on flesh!’

Here: 'Its teeth'. The written consonants could be read as singular, but the vowel tradition reads plural. Either way it pictures the bear's jaws.

Daniel 7:7 וְשִׁנַּ֨יִן and teeth

After this, as I watched in my vision in the night, suddenly a fourth beast appeared, and it was terrifying—dreadful and extremely strong—with large iron teeth. It devoured and crushed; then it trampled underfoot whatever was left. It was different from all the beasts before it, and it had ten horns.

Here: 'And teeth'. The form is the dual (a special Hebrew and Aramaic form for things that come in pairs), here the natural form for rows of teeth. Teeth are the instruments of devouring.

Daniel 7:19 שִׁנַּ֤הּ tooth its

Then I wanted to know the true meaning of the fourth beast, which was different from all the others—extremely terrifying—devouring and crushing with iron teeth and bronze claws, then trampling underfoot whatever was left.

Here: 'Its teeth.' The sense is plural, as in 7:7 ('it had great iron teeth'). The teeth are the instrument of devouring.