Dental Radiography Final Review

Front

Which types of cells are more sensitive to radiation?

Back

Rapidly dividing cells and young cells are more sensitive to radiation.

Front

What must be seen on a maxillary molar radiograph?

Back

All crowns and roots of the first, second, and third molars, including the apices, alveolar crests, contact areas, surrounding bone, and tuberosity region.

Front

Define radiation.

Back

Radiation is the emission and propagation of energy through space or a substance in the form of waves or particles.

Front

Define radioactivity.

Back

Radioactivity is the process by which certain unstable atoms or elements undergo spontaneous disintegration, or decay, to attain a more balanced nuclear state.

Front

How does dental caries appear on a radiograph?

Back

Dental caries appears radiolucent because the area of the tooth with caries is less dense than surrounding structures.

Front

What is a radiograph?

Back

A radiograph is a picture on film produced by the passage of x-rays through an object or body.

Front

What is the significance of the apices in dental radiography?

Back

The apices must be visible on radiographs to assess the health of the tooth roots and surrounding bone.

Front

What is the difference between radiopaque and radiolucent?

Back

Radiopaque structures appear white on a radiograph because they are denser, while radiolucent structures appear dark because they are less dense.

Front

What is the purpose of dental radiography?

Back

Dental radiography is used to diagnose and monitor dental conditions, including cavities, infections, and bone loss.

Front

What factors affect the sensitivity of cells to radiation?

Back

Factors include the rate of cell division, age of the cells, and the type of tissue.