theme 12 Flashcards
2 types of developmental bone lesions of mouth
torus palatinus
torus mandibularis
what is reactive exostosis
projection of bone caused by chronic trauma = periosteal irritation = bone deposition
remove surgically
what is an osteoma and what are the 3 causes
benign bony mass in jaw
developmental, reactive, benign neoplastic
2 clinical classifications for osteomaas
solitary or multiple
syndrome causing multiple osteomas and multiple odontomes
gardner syndrome
features of benign neoplasms of jaw
rare, slow growing, circumscribed,
overlap with odontogenic neoplasms clinically
mimic cysts on radiograph
what sort of carcinoma presents in jaw
metastatic carcinoma - metastasis of SCC
3 types of malignant neoplasms in jaw
metastatic carcinoma
marrow neoplasms
primary bone tumours - osteosarcoma, chondrosarcoma, mesenchymal chondrosarcoma
premalignant disease putting elderly patients at risk of osteosarcoma?
pagets
name for newly laid down bone by osteoblasts
osteoid
role of RANKL
ensure bony remodelling is balanced
2 types of giant cell lesions of jaw
giant cell granuloma - peripheral or central
hyperparathyroidism - produces lesions called brown tumour
characteristic of giant cell lesions
presence of osteoclasts
where does a peripheral giant cell granuloma present
gingiva only - friable + painless
where does a central giant cell granuloma present
involves underlying jaw bone