The edentulous mandible
1954; Elsevier BV; Volume: 4; Issue: 2 Linguagem: Inglês
10.1016/0022-3913(54)90100-6
ISSN1097-6841
Autores Tópico(s)dental development and anomalies
Resumo1.The objectives of this article are to describe the edentulous mandible in greater detail than is usually done in standard textbooks of human anatomy and to correlate the anatomic features of the edentulous mandible with the soft parts related to it. 2.Questions are raised concerning the usage of certain anatomic terms in the light of existing structural conditions. 3.The most characteristic and well-known feature of the edentulous mandible, from which the permanent teeth have been missing for a period of time, is the absence of a well-defined alveolar process resulting from resorption due to disuse atrophy. 4.As a result of the resorption of the alveolar process, the vertical height of the bone in the region of the body is greatly diminished; the mylohyoid line, genial tubercles, and incisive fossae with their attached muscles lie near or upon the crest of the residual ridge, as do the mental foramen and its contained vessels and nerve; some structures, such as the buccal shelf and buccinator crest, lose their identity; while others, such as the chin and lingual tuberosity, seem to be exaggerated. 5.The coronoid and condyloid processes exhibit certain characteristic features: the former being shorter than the latter and both bent backward; the anteroposterior diameter of the condylar head is diminished; its articular surface is confined to its superior aspect and the lateral tubercle is quite pronounced. 6.Evidence is presented to indicate that the rami and body of the edentulous mandible may share with the alveolar process in resorption.
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