Many carnivorous dinosaurs have ambiguous features, such as "peg-like" teeth at the front of the mouth, or no teeth at all.

许多食肉恐龙的特征并不是很明显，例如，要么在嘴的前部有“钉状牙齿”，要么就根本没有牙齿。

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They swallowed it whole. Their teeth were used to rip the meat or plants into mouth-sized pieces, but were not used for chewing.

VOA: special.2010.06.04

Here's one climbing out of the pool: First her face appeared, long and cadaverous, with a bandage-like bathing cap coming down almost to her eyes, and sharp teeth protruding from her mouth.

有一个女人从游泳池中出来了，首先是她的脸，修长,而惨白，如绷带般的泳帽从她的头部,耷拉到她的眼睛，锋利的牙齿从她的口中突出。

耶鲁公开课 - 1945年后的美国小说课程节选

Its teeth filled a fierce-looking mouth that was heavy with muscles.

VOA: special.2009.10.13

Which is better: brains and brawn, or giant claws and a mouth full of teeth?

FORBES: King Kong Vs. T. Rex

He opened his mouth, clenched his teeth over the handle, and pulled it up for about eight seconds.

WSJ: At These Olympics, It Helps

If you have any of these signs, your dentist will look for changes in your teeth and mouth over the next several visits to see if the process is progressive and to determine whether you need treatment.

CNN: Bruxism/teeth grinding