Evolution de la morphologie mandibulaire au cours de la sénescence chez l’homme

M Laude, M Goudaert, A Doual-Bisser, J.M Doual

Abstract


The mandible is situated in a complex matritial context. It takes part in a great number of functions: manducation, deglutition, respiration and has an important part in gesticulations.
On the other hand, it is deeply involved in the cervico-cephalic static of human being.
The involution or simply changes of these different functions due to age can bring about variations of the mandibular morphology.
The comparison between two subgroups of population, one made of 25 to 45 year-old subjects, the other made of 75 to 95 year-old subjects has led us to the following conclusions.
The posterior mandibular regions (condyle, coronoid apophyses, gonion angle) remain relatively stable during life.
The anterior mandibular regions are much more malleable even in toothed old men.
We noticed :
— a discrete but real apposition process in the region of the geni-apophyses;
— an important appositional process in the anterior part of the basilar edge and in the region of the symphysis.

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