Principle of Radiographic Interpretation l Oral radiology MCQs

Principle of Radiographic Interpretation l Oral radiology MCQs for dental students 

 

MCQ on principles of Radiographic Interpretation for dental radiology 

A lesion coronal to the alveolar canal and causing its displacement in an apical direction with maintenance of the cortical border of the canal is most likely a:

a. Benign odontogenic lesion.

b. Benign non-odontogenic lesion.

c. Malignant lesion.

d. Vascular lesion.

A well defined lesion has to be regular in shape and must be corticated.

a. True.

b. False.

Destructive lesions have ill-defined borders and large size, while non- destructive lesions have well-defined borders and small size

a.. True.

 b. False.

All of the following appear as radiolucencies except :

a. Dentigerous cyst.

b. Unicystic ameloblastoma.

c. Condensing osteitis.

d. Osteogenic sarcoma (osteolytic type).

Radiographs are very helpful in the diagnosis of periapical radiolucencies as they demonstrate the:

a. Difference between a cyst and a granuloma.

b. Vitality of the tooth.

c. Differences between densities of structures.

d. Fittness of the canal for obturation.

 

Root resorption occurs more common with rapidly growing lesions than with slowly growing lesions.

a. True

b. False

For proper interpretation of a dental radiograph, a thorough knowledge of one of the following is essential

a. Oral pathology

b. Anatomy.

c. Histology.

d. Oral diagnosis.

e, None of the above.

• 1-a,bc
• 2-a.b.d
• 3.ac.d

A radiolucent lesion is termed "well-defined" if it satisfies the following criteria :

a. Most of its periphery is well-defined.

b. Small pan of its periphery is well-defined,

c. All of its periphery is well-defined.

d. Its periphery is blending.

Radiographs would be most helpful in the detection of :

a. Infection in soft tissues.

b. Pulp vitality.

c. Puss

d. Supernumerary teeth.

1f the epicenter of a lesion is above the inferior dental canal, it is most likely:

a- Composed of odontogenic tissues.

b- Vascular in nature

c- Neural in nature

d- Composed of non odontogenic tissues

A punched out border is one that has an ill-defined boundary, and shows no apparent bone reaction immediately adjacent to the abnormality.

a. True

b. False

 The outer cortical bone may respond to lesions by showing :

a- Thinning.

b- Expansion.

c- New bone formation

d- Perforation

• I-a, b, d only
• 2- a, c, d only
• 3- b, c, d only
• 4-AII of the above

 The presence of reactive bone at the periphery of a lesion whether corticated or sclerotic, usually signifies rapid and aggressive growth.

a- True

b- false

The mach band is due to:

a- Projection errors

b- Exposure errors

c- Processing errors

d- Sharp density differences

Punched out RL area has an

a- Ill-defined periphery

b- Well-defined periphery with a corticated margin

c- Well-defined periphery with a sclerotic margin

d- None of the above

If an abnormality affects all the osseous structures of the maxillofacial region, what should it be addressed?

a- Multifocal abnormality

b- Generalized abnormality

c- Quadrilateral abnormality

Counting the erupted teeth during the assessment Of chronological age from panoramic radiographs is essential to exclude any possible cause of missing tooth/teeth.

a- True

b-False

A round-shaped abnormality could have a

a- Well defined periphery

b- Ill-defined periphery

c- Well-defined periphery with a corticated margin

d- Well-defined periphery with sclerotic margin

e- All of the above

A blending , invasive, infiltrative, diffuse, encapsulated and ragged margin, all these terms could present an ill-defined margin.

a. True

b. False