The crown, also known as the vertex, is a area of scalp that can require hair transplantation either in alone or in combination with other part of the scalp. Crown hair transplant procedures are one of the most technically demanding of all types of hair restoration procedures due to the fact that extreme hair angle changes occur in the crown area in a whorl, or spiral, pattern which must be meticulously recreated for a seamlessly natural result to give a full density appearance.