1The orthodontist carefully examined the patient's incisors to determine the best course of treatment for their misalignment.
2Studies have shown that the shape and size of incisors can vary significantly across different primate species.
3In many mammals, the incisors grow continuously throughout the animal's lifetime, requiring regular wear to prevent overgrowth.
4The dentist explained that the patient's incisors were worn down due to years of grinding their teeth at night.
5The discovery of fossilized incisors has provided valuable insights into the evolution of human dentition and the development of modern human teeth.