Redwood City Dentist Steven Kolokithas DDS
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Steven G. Kolokithas DDS
2920 Broadway
Redwood City, Ca 94602

Ph: 650-368-1353 » Technology

Digital X-Rays

Dr. Steve uses the latest advances in Dental Technology. Digital X-Rays reduce exposure up to 90% and deliver an image instantly!

How much radiation is involved with dental x-rays?

Using state of the art technology, a full set of x-rays will deliver a dose of 3 millirem of radiation. This is equal to 4 days of being outdoors. Federal and state regulations for workers whose occupation involves exposure to radiation sets 5000 millirems of radiation per year as safe.

The Center for Devices and Radiological Health of the Food and Drug Administration (, the American Dental Association (, the National Council on Radiation Protection and Measurements are a few of the organizations that monitor x-ray usage. Many states also have regulations regarding x-rays and x-ray equipment.

Dental Technology
Digital X-Rays
Intra-Oral Camera
Nitrous Oxide (Laughing Gas)
Patient Educational Videos
Secure Computerized Records
Wireless Headphones

Dr. Steven Kolokithas, DDS - Digital X-Rays


What is a full-mouth series of x-rays?

This is a set of x-rays that targets all the teeth individually. Generally, this includes 18 to 20 x-rays.


Are Dental X-Rays Necessary?

You may be concerned when your dentist tells you that x-rays need to be taken. You may wonder whether they are really necessary, how you can benefit from them, and whether or not there will be any risk to your health. We'll try to provide some specific answers to those questions here.

Dental X-Rays provide information for detection, diagnosis and treatment of conditions that can threaten your oral and general health. Many of these diseases are not visible with the naked eye. Here is a list of uses that can only be detected using x-rays:

  • To find decay in between the teeth
  • To detect dental abscess before any other signs are present
  • To detect bone cysts
  • To see the condition of periodontal bone levels
  • To see the condition of tooth roots
  • To determine the condition of existing restorations
  • To determine the presence of impacted or un-erupted teeth
  • To locate deep plaque and tartar
  • To see the relative position of the tooth roots to the sinuses
  • To determine if orthodontics is necessary and appropriate

Redwood City Dentist - X-Rays     

What is a panoramic x-ray?

Panoramic x-rays cover the entire mouth, jaw and sinuses on a single film. This type of x-ray is most useful in the detection of many problems including abscesses and impacted teeth, but are not precise enough to detect small cavities in between teeth.

Redwood City Dentist - Panoramic X-Ray     

Why Dental X-rays Are a Must for a Comprehensive Examination

Undetectable Cavity X-Ray (Showing Cavity)    
Are Dental X-Rays Necessary? Are Dental X-Rays Necessary?

Dental X-rays are essential for detecting cavities which may not be visible to the naked eye. The example to the left show a tooth that to all appearances is healthy.

This X-Ray shows (shadow on the bottom center tooth) that there is indeed a cavity. The images below show the cavity being uncovered and repaired.

Cavity Uncovered, Cleaned, and Repaired.   After
Are Dental X-Rays Necessary? Are Dental X-Rays Necessary? Are Dental X-Rays Necessary? Are Dental X-Rays Necessary?

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Redwood City Dentist

Steven G. Kolokithas DDS
2920 Broadway
Redwood City, Ca 94602

Ph: 650-368-1353
Fax: 650-365-5672

Office Hours
M: 8-5
Tu: 8:20 - 6
W: 8 - 5
Th: 8:20 - 2:20
Lunch: M thru W 1 - 2

Redwood City Office

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