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›M35: Choosing radiographs: examine first, pick the images and the interval for the patient, keep the dose low, and read every imageEnglish한국어Exit lesson
M35 · 5 steps

M35: Choosing radiographs: examine first, pick the images and the interval for the patient, keep the dose low, and read every image

One choice of radiographs for an adult patient, done the way the ADA and FDA recommendations set it out: take the history, examine the mouth, look at earlier images and rate caries risk before any image is taken, and take images only when they will change the care; for a new adult, choose bitewings with selected periapicals or a panoramic image, and a full mouth series when disease is general or treatment has been extensive; at recall, set the bitewing interval from caries risk (6 to 18 months at increased risk, 24 to 36 months without); keep the dose as low as reasonably achievable with a digital or fast receptor, rectangular collimation and a holder nobody on the team holds; protect the thyroid with a collar; and read every image for caries, bone loss, developmental anomalies and hidden disease.

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M35 has 5 steps, step pictures and checks. They open with the $99 season (90 days), the $149/yr student seat, or a class code that assigns this lesson. M0 and M1 are free.

Unlock the full library Open free M1
Sources: fda.gov · fda.gov
English한국어
✕M35: Choosing radiographs: examine first, pick the images and the interval for the patient, keep the dose low, and read every image
M35: Choosing radiographs: examine first, pick the images and the interval for the patient, keep the dose low, and read every image

One choice of radiographs for an adult patient, done the way the ADA and FDA recommendations set it out: take the history, examine the mouth, look at earlier images and rate caries risk before any image is taken, and take images only when they will change the care; for a new adult, choose bitewings with selected periapicals or a panoramic image, and a full mouth series when disease is general or treatment has been extensive; at recall, set the bitewing interval from caries risk (6 to 18 months at increased risk, 24 to 36 months without); keep the dose as low as reasonably achievable with a digital or fast receptor, rectangular collimation and a holder nobody on the team holds; protect the thyroid with a collar; and read every image for caries, bone loss, developmental anomalies and hidden disease.

Outline · 5 steps
1. Examine before any image
2. Choose the images for a new adult
3. Set the recall interval from caries risk
4. Keep the dose low
5. Collar the thyroid, then read every image

Unlock the full library

M35 has 5 steps, step pictures and checks. They open with the $99 season (90 days), the $149/yr student seat, or a class code that assigns this lesson. M0 and M1 are free.

Unlock the full library Open free M1
Sources: fda.gov · fda.gov

Practice feedback against the 2026–27 published crown-prep criteria (molar). Not an exam or admissions result; your program and examiners decide.