PubMed · 1303841
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Y H Zhou, M K Fu, J X Lin. 1992. [Masticatory efficiency].. https://pubmed.ncbi.nlm.nih.gov/1303841/
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The Mona Lisa, painted by Leonardo Da Vinci, 1503, pictures a smile that has been long the subject of conjecture. It is believed, however, that the Mona Lisa does not smile; she wears an expression common to people who have lost their front teeth. A closeup of the lip area shows a scar that is not unlike that left by the application of blunt force. The changes evident in the perioral area are such that occur when the anterior teeth are lost. The scar under the lower lip of the Mona Lisa is similar to that created, when, as a result of force, the incisal edges of the teeth have pierced the face with a penetrating wound.
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Two Ptolemaic period mummies underwent head and neck examination including high-resolution tomography and endoscopic rhinoscopy and cranioscopy. The anatomy demonstrated characteristic laryngeal calcification and sexual dimorphism. Pathologic findings consisted of severe dental disease and possible chronic ear disease. Postmortem changes revealed the entrance of the embalmers into the cranial cavity, but raised interesting speculation regarding the method of brain removal.