Skull recovery is a very useful technique in forensic autopsy, and it is now also used in archaeology.
To put it simply, this technology appeared when anatomy was fully developed. Skull restoration was originally called skull restoration technology in sculpture. There is an ancient bone-touching technique in China. It is said that the appearance can be judged based on the skull, so it may have been invented by ancient Chinese forensic doctors, and then lost. Later, foreigners discovered that they applied for a "patent" first. I remember that it was mentioned in "The Collection of Cleansing Wrongs" written by Song Cixiu of the Song Dynasty, so I won't list them all here.
Here are some references:
A few teeth reveal the true face of the giant ape in Mount Lu.
Paleontology is a discipline that “infers the whole from the part.” Although researchers have not yet discovered the entire skeleton of the great ape, they have studied the appearance of the great ape before, at the same time, and in the modern ape. Through careful comparison, the appearance of the giant ape was reasonably restored. To put it simply, the restoration process is to restore a matching skull based on the teeth and mandibles, then restore the entire body skeleton based on the skull, and then "touch it up" with skin, flesh and hair.