A Review of Evolution of Premolar in Mammals

The morphology and structure of the mammalian premolar teeth varies in all species. The variation occurs due to the evolutionary changes of the premolar. Even though the premolars have almost the similar function and morphology as the molars, but it is not homologous to that of the molars. Furthermore, sometimes the morphology of premolar and canine is almost alike but in the aspect of occlusion it differs from each other. These variations occur due to the evolution of the teeth. There are some minor similarities between each tooth because of the common developmental origin.