Rad Tech Final
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130 Terms
What are radicular cysts?
Odontogenic, inflammatory
What is enostosis?
Dense bone island
What are unilocular radiolucent lesions?
Cysts, benign tumors
What is the growth rate of unilocular benign tumors?
Slow growing
What type of teeth are associated with unilocular lesions?
Vital teeth
What characterizes non-corticated lesions?
Fast growing, nonvital teeth
Examples of posterior multilocular radiolucent lesions?
MACHO (Myxoma, Ameloblastoma, Central giant cell granuloma, Hemangioma, Odontogenic keratocyte (OKC))
What type of radiolucency is associated with malignancies?
Moth eaten
What types of lesions have radiopacities but are malignancies?
Metastasis, osteosarcoma
What is a benign tumor associated with focal opacity?
Idiopathic osteosclerosis
What shape do calcified lymph nodes resemble?
Cauliflower shape
Where do calcified lymph nodes typically appear?
Angle of mandible
What is the appearance of sialoliths (salivary gland stones)?
Homogenous
What is indicated by calcified atheroma's at the bifurcation?
Common carotid artery
From where does the ossified stylohyoid ligament descend?
Styloid process
Where do tonsoliths typically overlap?
Ramus
What area do tonsoliths affect?
Oropharyngeal air space
What is the most common type of calcification?
Tonsoliths
What happens if the mandibular canal is within neural/vascular structures?
Nerve expands
What appearance is associated with spiked roots in malignancies?
Moth eaten appearance
What characterizes asymmetric widening of PDL?
Loss of lamina dura
What does dysostosis refer to?
Defective ossification
What does dysplasia indicate?
Abnormality of development
What does dystrophy refer to?
Bone growth disturbance
Most common diseases with supernumerary teeth?
Gardner's Syndrome, Cleidocranial Dysplasia
What is Peridens?
Extra premolar in mandible
Most common single supernumerary tooth?
Mesiodens
Location of Mesiodens?
Btwn maxillary centrals
What is Paramolar/Distomolar?
4th molar
Characteristics of Fusion?
Missing tooth, 2 pulp chambers
Characteristics of Gemination?
1 pulp chamber, tooth bud development
Gemination common in?
Incisors and canines
What is Concrescence?
Fusing of teeth at cementum
Concrescence most common in?
Maxillary molars
Characteristics of Taurodontism?
Elongated trunk, short roots
Gardner's Syndrome characteristics?
Supernumerary teeth, osteomas, polyps
Polyps in Gardner's Syndrome?
Malignant
Cleidocranial Dysplasia characteristics?
Frontal bossing, missing clavicle
What is Amelogenesis Imperfecta?
Enamel hypoplasia
What type of enamel condition has a picket fence appearance?
Hypoplastic type
What type of dentin condition involves rootless teeth?
Dentin Dysplasia
Which type of Dentin Dysplasia has normal roots?
Type 2 Coronal
What is Periapical Rarefying Osteitis also known as?
Granuloma
What kind of teeth are affected by Periapical Rarefying Osteitis?
Nonvital teeth
What indicates chronic inflammation in Periapical Rarefying Osteitis?
Sequel of an acute episode
What is Periapical Sclerosing Osteitis also known as?
Condensing osteitis
What does Periapical Sclerosing Osteitis indicate?
Long standing infection
What is osteomyelitis due to?
Hypovascularity
What do you feel during acute osteomyelitis?
Pain
Is there radiograph manifestation during the acute phase of osteomyelitis?
No
Which gender is more affected by osteomyelitis in the mandible?
Men
What indicates osteomyelitis if borders are irregular?
Choose osteomyelitis
What is sequestration in chronic osteomyelitis?
Necrotic bony islands
What develops during chronic osteomyelitis?
Sinus tract
Diffuse sclerosing is seen in which condition?
Florid Osseous Dysplasia
What happens to the inferior border of the mandible in diffuse sclerosing?
Thinned
What is proliferative periostitis also known as?
Garre's Osteomyelitis
What is a characteristic appearance of Garre's Osteomyelitis?
Onion skin
Who is more affected by Garre's Osteomyelitis?
Females, younger
What is Pericoronitis associated with?
Third molars
What are the symptoms of Pericoronitis?
Pain + swelling
What X-ray finding is associated with Pericoronitis?
Loss of cortical outline
What age group is typically affected by Fibrous Dysplasia?
Young adults
What does Fibrous Dysplasia do to the IAN canal?
Displaces superiorly
What radiographic appearance does Fibrous Dysplasia have?
Ground glass opacity
What is a common clinical feature of Fibrous Dysplasia?
Unilateral facial swelling
When does growth from Fibrous Dysplasia stop?
After adolescence
Are teeth vital in Fibrous Dysplasia?
Yes
Does Fibrous Dysplasia cause pain?
No pain, no symptoms
What is the demographic affected by Cemento-osseous Dysplasia?
AA/Asian women
What teeth does Cemento-osseous Dysplasia affect?
Mandible and maxilla, anterior teeth
What distinguishes the Florid type of Cemento-osseous Dysplasia?
>2 quadrants affected
What is a key characteristic of the Focal type of Cemento-osseous Dysplasia?
Different demographic
What does a Benign Cementoblastoma appear like on radiograph?
Wheelspoke pattern
What type of teeth are affected by Benign Cementoblastoma?
Vital teeth
What age group and gender are most affected by Benign Cementoblastoma?
Males, any age
What growth is associated with Benign Cementoblastoma?
Bulbous growth at apex
What is a characteristic of Benign Cementoblastoma on the tooth root?
External resorption of root
What is the most common finding in radiographs?
Enostosis (one bone island)
Where are radicular cysts found?
Apex of tooth
What type of teeth are associated with radicular cysts?
Nonvital teeth
What is the most common cyst?
Radicular cyst
How is a radicular cyst described radiographically?
Well corticated
What is the treatment for radicular cysts?
Enucleation
What type of cyst is a Residual Cyst?
Odontogenic, inflammatory
What is the vitality of teeth associated with Residual Cysts?
Nonvital teeth
Where is a Residual Cyst located?
Above IAN canal
What is the treatment for Residual Cysts?
Marsupialization (a surgical procedure where a cyst is opened and sutured to the surrounding tissue to create a permanent drainage pathway, preventing reformation)
What type of cyst is a Dentigerous Cyst?
Odontogenic, non-inflammatory
Where are Dentigerous Cysts typically found?
Coronal to tooth
What is the second most common cyst type?
Dentigerous Cyst
What is a differential diagnosis for Dentigerous Cysts?
Ameloblastic fibroma
What type of cyst is a Lateral Periodontal Cyst?
Odontogenic, non-inflammatory
What is the vitality of teeth associated with Lateral Periodontal Cysts?
Vital tooth
Where are Lateral Periodontal Cysts typically located?
Between teeth, lateral to tooth root
In which age range are Lateral Periodontal Cysts commonly found?
20-90 years
What area does odontogenic keratocyst (OKC) expand?
Mandibular posterior area
How does odontogenic keratocyst (OKC) expand around teeth?
Around entire tooth
What is the recurrence rate of odontogenic keratocyst (OKC)?
High recurrence rate
What are the differential diagnoses for odontogenic keratocyst (OKC)?
Ameloblastoma, dangerous cyst
