It is a small to large indentation in the chin that is actually genetically determined and is caused by failure of the lower jawbone to completely fuse together at the center point. However, some of the most known actors and musicians have this feature on their face. John Travolta. Look at that thing!
Featured Provider Near You
The human chin also known as the mental protuberance, mental eminence and, rarely, mental osseum, tuber symphyseos refers to the forward pointed part of the anterior mandible mental region below the lower lip. A fully developed human skull has a chin of between 0. The presence of a well-developed chin is considered to be one of the morphological characteristics of Homo sapiens that differentiates them from other human ancestors such as the closely related Neanderthals. Why modern humans have this particular feature and why it is not present in any fossil or living primate remain tantalizing questions. The origin of the chin is traditionally associated with the anterior—posterior breadth shortening of the dental arch or tooth row; however, its general mechanical or functional advantage during feeding, developmental origin, and link with human speech, physiology, and social influence are highly debated. Robinson  suggests that the demand to resist masticatory stresses triggered bone thickening in the mental region of the mandible and ultimately formed a prominent chin. Moreover, Daegling  explains the chin as a functional adaptation to resist masticatory stress that causes vertical bending stresses in the coronal plane.
Being born with a cleft chin-- or "butt chin"-- is totally normal. People with dimples in their chin simply have an irregularity in their genes that causes a dip in their lower jawbone. The following list of celebrities famous for their butt chins may have you thinking about dimple creation surgery , too:. Ben Affleck. On Ben, a slight dimple adds to his handsome and chiseled face. The butt shape sits prominently at the bottom of his chin, and appears to have deepened with age. Butt chins can also disappear over time, as the face changes and new tissues grow.
A unique little vintage silver plate tea pot with art deco styling and black finial and handle! With a good cleaning it would still be perfectly functional! No maker's marks.