ทำไมสัตว์ป่าฟันไม่ผุทั้งที่ไม่แปรงฟัน

Why don't wild animals get cavities even though they don't brush their teeth? Have you ever wondered why wild animals never brush their teeth, never floss, never go to the dentist, and never get their teeth cleaned, yet their teeth hardly ever decay? Humans, on the other hand, get tartar buildup quickly if they don't get their teeth cleaned. And even if we brush our teeth morning and evening every day, we believe many of us have had a cavity or two at some point. But why is that? ...Let me explain.