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Featuring consumer information from Columbia School of Dental & Oral Surgery
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Oral Health Made Simple: Your Prescription For Knowledge
 PREVENT PROBLEMS
Small BoxAll About Cavities
Small BoxBrushing and Flossing
Small BoxFluoride
Small BoxMouth-Healthy Eating
Small BoxSealants
Small BoxTaking Care of Your Teeth
Small BoxTobacco
Small BoxYour Dental Visit
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 CONDITIONS
Small BoxBad Breath
Small BoxCavities
Small BoxCold Sores
Small BoxDry Mouth
Small BoxImpacted Tooth
Small BoxSensitive Teeth
Small BoxTMJ
Small BoxTooth Discoloration
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 TREATMENTS
Small BoxCrowns
Small BoxDentures
Small BoxFillings: The Basics
Small BoxGum Surgery
Small BoxImplants
Small BoxRoot Canal Treatment
Small BoxScaling and Root Planing
Small BoxWhitening
Small BoxMORE
 GENERAL TOPICS
Small BoxControlling Pain
Small BoxCosmetic Dentistry
Small BoxEmergencies
Small BoxFill, Repair, Replace
Small BoxKids And Teens
Small BoxOral Health and Your Body
Small BoxOrthodontics
Small BoxPeriodontics
Small BoxSeniors
Small BoxMORE
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Step 1 Prevent ProblemsSimplestepsPrevent Problems
Step 2 Understand ConditionsSimplestepsUnderstand Conditions
Step 3 Explore TreatmentsSimplestepsExplore Treatments

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X-Rays

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space placeholder. What Are X-Rays?.
space placeholder.What You See on an X-Ray.
space placeholder.More About X-Rays.
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space placeholder. What Are X-Rays?
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X-rays are a form of energy that travels in waves. X-rays can enter solid objects, where they either are absorbed or continue to pass through. X-rays tend to be absorbed by denser objects. They pass easily through less dense objects.

Teeth and bone are very dense, so they absorb X-rays. X-rays pass more easily through gums and cheeks. That's why cheeks and gums appear dark and without detail on a dental X-ray, but teeth show up much lighter. Restorations such as crowns and fillings are even denser than bone. They show up as solid, bright white areas on X-rays. Dental decay and caries (cavities) appear as darker patches.

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space placeholder.What You See on an X-Ray
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X-ray image with problem areas labeled


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space placeholder.More About X-Rays
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How Are X-rays Used?
How Often Should Teeth Be X-Rayed?
Types of X-Rays
X-Ray Safety
X-Ray Frequency Guidelines



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  See Also . . .
X-Ray Safety
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