Bone Lesions Of The Jaw

Front 1

What are two benign fibro-osseous lesions

Back 1

Peri-apical cemental dysplasia
Fibrous dysplasia

Front 2

What is the most common bone disorder seen in practice?

Back 2

Peri-apical cemental dysplasia

Front 3

Peri-apical cemental dysplasia usually occurs in what part of the jaws and affects which demographic?

Back 3

anterior mandible

Middle aged women and African Americans

Front 4

What are the 3 stages of formation of the peri-apical cemental dysplasia

Back 4

Osteolytic stage

Cementoblastic Stage

Mature stage

Front 5

A radiographic feature of fibrous dysplasia is?

Back 5

ground glass appearance

Radiopacity

obscured 'lamina dura'

Front 6

Define Fibrous Dysplasia

Back 6

normal bone architecture is replaced by fibrous tissue and non-functional trabeculae-like osseous structures.

Front 7

List 4 metabolic conditions affecting the jaw

Back 7

Paget disease
Osteopetrosis
Osteoporosis
Osteogensesis Imperfecta

Front 8

Uncoordinated increase in osteoblastic and osteoclastic active is a key feature of which metabolic disease

Back 8

Paget Disease

Front 9

WHich condition displays the microscopic mosaic pattern off bone?

Back 9

Paget Disease

Front 10

List 4 histopathology features of Osteopetrosis

Back 10

Possible avascularity of bone
Sclerotic bone replaces cancellous bone
Increased Functionless osteoclasts
Marrow space replace by fibrous tissue

Front 11

List 6 Aetiopathogensis features of Osteoporosis

Back 11

Sex hormones, nutrition, lack of calcium, lack of physical stress, decreased blood supply, drug induced

Front 12

list 3 histopathology features of osteoporosis

Back 12

Reduction in trabecular bone volume
Excessive resorption by osteoclasts
Failure of bone formation by osteoblasts

Front 13

What are the 5 clinical features of osteogenesis imperfecta?

Back 13

Fragility of bones
Blue sclera
Deafness
Tooth abnormalities
Increased capillary bleeding

Front 14

List the 7 oral manifestations of osteogenesis imperfecta

Back 14

Short narrow roots
Primary more affected than permanent
Blue-brown or amber opalescent discolouration of teeth
Increase enamel wear and fracture
Class 3 malocclusions
Partial or complete obliteration of pulp chamber
Bell shaped tooth crown with cervical constriction

Front 15

List 5 Benign tumours of the jaw

Back 15

Tori exostosis
Osteoma
Central and peripheral giant cell granuloma
Aneurysmal bone cyst
Traumatic bone cyst

Front 16

Tori exostosis are more common in which race of people?

Back 16

Asians

Front 17

Where is Tori exostosis commonly found

Back 17

midline of palate
lingual surfaces of mandible
Elsewhere = exostosis

Front 18

Where are Peripheral Giant cell granulomas usually located?

Back 18

Extra-osseously on the gingiva and alveolar ridges

Front 19

What areas of the oral region do Central Giant Cell Granulomas affect

Back 19

Intra-ossous

Affecting the anterior mandible and maxilla

Front 20

List a clinical, radiological and histopathology feature of Central Giant Cell Granulomas:

Back 20

Clinical: Loosening of teeth
Radio: root resorption
Histo: Multiple giant cells and RBCs

Front 21

Where are Aneurysmal bone cysts usually formed

Back 21

Posterior mandible and maxilla

Front 22

What is the peak age of incidence of the Aneurysmal bone cysts?

Back 22

First three decades of life with peak occuring 10-19yrs

Front 23

Oral consequences of Aneurysmal bone cysts include:

Back 23

Can cause malocclusion and facial deformity
Root resoption
Movement of adjacent teeth

Front 24

What is the condition in which an asymptomatic intraosseous cavity is formed, usually in the mandibular molar or premolar regions of young people?

Back 24

Traumatic Bone Cyst (simple bone cyst)

Front 25

Name two Malignant tumours of the jaw?

Back 25

Osteogenic Sarcoma

Chondrosarcoma

Front 26

What is the most common neoplasm derived from bone cells

Back 26

Osteogenic sarcoma

Front 27

What type of bone do osteogenic sarcomas commonly affect and what percentage affect the head and neck region?

Back 27

Long Bones

7% in head and neck

Front 28

What is the age of incidence of osteogenic Sarcoma

Back 28

2nd -3rd decade of life

Front 29

List 2 radiographic and Histological features of osteogenic Sarcoma

Back 29

Histo: Pleomorphic osteoblasts and Tumour cells (giant cells)

Radio: Mottling of bone and widening of periodontal space

Front 30

WHat area and what age do chondrosarcoma affect?

Back 30

anterior maxilla

30-40 yrs of age