Okay, I was curious so I looked it up. Corbiculidae is also known as a freshwater basket clam. In short: it isn't that tough. Human teeth are tougher. I was still curious, so I kept looking into it... what about the exceptionally tough corbiculidae teeth? Like, an exception compared to the norm; how tough would that be? Still, not as tough as human teeth.
So yeah... this is like Sorcerer King and its "Nuclear Power Plants" -> completely fictional.

Longer explanation:
Human teeth are designed to withstand the forces of biting and chewing a variety of foods and they last a lifetime. Human teeth is made up of enamel which is the hardest substance in the human body; 96% mineral content, mostly hydroxyapatite. The hardness rating of enamel is about a 5 on the Mohs scale (comparable to steel).
No, I didn't look up what hydroxyapatite is. I had to draw the line on wasting my free time looking into this somewhere.
Meanwhile,
Corbiculidae teeth are used to maintain shell alignment and closure, providing structural stability. It is made up of calcium carbonate which is less hard than enamel; around a 3.5 to 4 on Mohs scale.