Ch 14 Flashcards
What are the characteristics of benign bone neoplasia
Asymptomatic slow growth and by expansion displaces teeth expands cortex symmetrical does not metastasize
What are the characteristics of malignant bone neoplasia
irregular borders noncorticated asymmetrical teeth floating in space capable of metastasis
Osteogenesis imperfecta is a defect in type___ collagen
I
What is the most common type of inherited bone diseases
osteogenesis imperfecta
What are the sx of osteogenesis imperfecta
Bone fragility blu sclera altered teeth Hearing loss long bone and spine deformities Joint hyperextesibility Osteopinia; low bone density bowing wormian bones is skull premature pulpal obliteration
What is the most common type of osteogenesis imperfecta
type I
Mildest, blue sclera through out life
What is the most severe form of osteogenesis imperfecta
Type III
What is the cause of Osteopetrosis/marble bone disease
marked increase in bone density due to a defect in remodeling caused by failure of normal osteoclast function
What is malignant osteoporosis
osteopetrosis discovered at birth
What are the sx of malignant osteoporosis
maroow failure frequent fractures Cranial nerve compression delayed tooth eruption Increased in skeletal density (radiopaque); roots hard to see.
What is the Tx for osteopetrosis infantile/malignant
Bone marrow transplant. 50% survive
What is another name for adult osteopetrosis
benign
less severe
long term survival
What is cleidocranial dysplacia
characterized by Dental and clavicle abnormalities.
clavicles missing or with varying degrees of hypoplasia
What are the sx of cleidocranial dysplacia
NUMEROUS UNERUPTED PERMANTENT AND SUPERNUMERARY TEETH.
short stature with big head
pronounced frontal bossing and hypertelorism
prolonged retention of deciduous teeth with delay/failure of eruption of permanent teeth.
what is osteoporotic marrow defect
area of hematopoietic marrow that produces radiolucency.
Might be confused with intraoseous neoplasm. incisional biopsy is necessary for dx.
75% in adult woman, posterior mandible
What are the characteristics of idiopathic osteosclerosis
virgin tooth, mostly in mandible Small filling Normal pulp asymptomatic no cortical expansion, RADIOPAQUE
What is conducing osteitis associated with
infections
what is focal cemento-osseous displace associated with
radiolucent rim
What is cementoblastoma associated with
it will be fused to the tooth
What is paget’s disease of bone
abnormal resorption and deposition of bone resulting in distortion and weakening of affected bones
M>F
Bone pain
Might result in enlargement of skulls circumference and middle 1/3 of face leading to leontiasis ossea.
Patients might complain that denture no longer fits or increased space bn teeth.
X-ray= cotton roll appearance
High elevations in serum alkaline phosphatase levels with NORMAL calcium and phosphorus levels.
Possible development of osteosarcoma
What nonneoplastic lesion is common in the anterior jaw and crosses the midline
Central Giant Cell Granuloma
What is radiographically seen in cherubism
bilateral radiolucency in a young person
What is a traumatic bone cyst
Benign empty or fluid filled cavity within bone; not lined with epithelium
Radiographically what does domelike projections that scallop bn roots suggest
traumatic bone cyst
What has the appearance of a blood soaked sponge or
blow out, ballooning distention of the contour of the affected bone.
Aneurysmal bone cyst
What are fiber-osseous lesions
processes characterized by replacement of normal bone by fibrous tissue containing a mineralized product
What are BFOLS
benign fibro-osseous lesions
What are four examples of BFOLS
Fibrous dysplacia
Cemento-osseous dysplacia; focal, periapical, florid
Ossifying fibroma
What does ground glass appearance on radiographs indicate
fibrous dysplacia
What is a condition resulting from a post zygotic mutations
Fibrous dysplacia
