[The ultrastructural study on radiation injuries of the jaws and soft tissues].
To search for the pathological basis of osteoradionecrosis (ORN), a ultrastructural investigation was performed on some experimental and clinical speciments. The result of this ultrastrcture study shows the nature of ORN is direct injuries of radiation rays to cells; damage of the arterioles are not the main pathologicalbasis, changes of the cytoplasm are more evident than that of nuclei. The changes of blood vessels in soft tissues are more extensive and serious than those of the bone.
Sun
Y
Y
School of Stomatology, Beijing Medical University.
Sun
K H
KH
Wang
G
G
D000818:Animals; D006801:Humans; D007568:Jaw / Q000528:radiation effects / Q000648:ultrastructure*; D007571:Jaw Diseases / Q000473:pathology*; D010025:Osteoradionecrosis / Q000473:pathology*; D012867:Skin / Q000528:radiation effects / Q000648:ultrastructure*