Why are canines sometimes referred to as "corner stones" of the mouth?

Canines are referred to as the "corner stones" of the mouth primarily because they play a crucial role in stabilizing the dental arch. Located at the corners of the dental arch, canines have a long root structure that allows them to help maintain the integrity of the arch while providing support for the surrounding teeth. Their position and strong anchorage contribute to proper alignment and occlusion, which is essential for effective chewing and overall oral function. This stability is vital for the health of the mouth and the proper functioning of both the upper and lower jaws during various activities such as speaking and eating.