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Cone Beam CT Imaging

Physicians have relied on computerized axial tomography scans (CAT) for many years. CAT scans are an X-ray procedure that uses many different X-ray images with the help of computers to generate cross-sectional or even three dimensional (3D) views of internal organs and structures within the body. A knee replacement surgery, for example, would never be performed without first examining 3D imaging.

More recently however, new technology has been developed that provides 3D imaging at a greatly reduced radiation exposure and cost compared to medical CAT scans. This technology is called Cone Beam CT and dentists have begun to rely on these 3D imaging techniques to provide them with a detailed view of the mouth and skull. The advantage that 3D imaging holds over regular dental x-rays is that bone structure, bone density, tissues, and nerves can be viewed clearly.

Cone Beam CT scans can be completed in less than half a minute. This means that far less radiation enters the body than if a regular set of bitewing X-rays were taken. The main use for CT scans is as an aid to plan dental implant treatment and other oral surgery.

 

CT Scans and Dental Implants

Dental implants are the most sophisticated replacement for missing teeth, but have historically proven to be time-consuming to place. CT scans vastly reduce the time it takes to place implants due to the ability of the dentist to see the anatomy of the implant site before any surgery is done and to plan accordingly.

How does the CT scan help our Staff?

It allows our staff to:

  • Visualize internal anatomy that can not be diagnosed externally
  • Plan treatment and surgery, including Implants
  • Prepare necessary aids
  • Assess risk and possible pathology and disease
  • Analyze the position and orientation of critical structures, like nerves, teeth roots, previous implants, the sinuses and nose, and airway passages

How are Cone Beam CT scans used?

CT scans are advantageous because they allow the dentist to magnify specific areas of the face. In addition, the dentist can easily view cross-sectional “slices” of the jaw, which makes planning treatment easier and faster.

Here are some of the main ways in which CT scans are used in dentistry:

  • Assess the quality of the jawbone where the implant will be placed.
  • Determine where nerves are located.
  • Diagnose tumors and disease in the early stages.
  • Measure the density of the jawbone where the implant will be placed.
  • Pinpoint the most effective placement for implants, including the angle of best fit.
  • Plan the complete surgical procedure in advance, from start to finish.
  • Precisely decide on the appropriate size and type of implants.
  • View exact orientation and position of each tooth.
  • View impacted teeth.

How are Cone Beam CT scans performed?

CT scans are quick and simple to perform. A Cone Beam Imaging System is at the heart of the scanner. During the scan, the patient stands or sits stationary on a designated seat. The cone beams are used to take literally hundreds of pictures of the face. These pictures are used to compile an exact 3D image of the inner mechanisms of the face and jaw. The dentist is able to zoom in on specific areas and view them from alternate angles.

Additionally, the scanner provides an open environment, meaning that claustrophobic feelings associated with medical CT scanners are eliminated. The cone beam CT scan is an incredible tool that is minimizing the cost of dental treatment, reducing treatment time and enhancing the end results of dental surgery.

Is it painful?

No, the Galileos CBCT scan process is completely painless.

Why a CBCT Scanner rather than a regular Medical CT Scanner?

 

  • X-Ray Radiation exposure to the patient is up 10 times less than a regular CT scanner.
  • Much faster scan time. Scan on a CBCT takes between 10-40 sec, while on a regular CT scanner it takes a few minutes.
  • Cheaper, average price of a CBCT scan could be up to 50% less than a regular MDCT scan.

What are the benefits versus risk?

Benefits

  • Unlike regular x-rays CT scans can discriminate between many types of tissue including bone, teeth, nerves and soft tissue.
  • CT scans are noninvasive, and can eliminate the need for exploratory surgery in some cases.
  • CT can identify the effects of conditions such as infection and tumors.
  • A cost effective tool for imaging a wide range of clinical problems.

Risks
In a dosimetry study conducted by Dr. Ludlow (2007) of the University of South Carolina the Sirona Galileos has the lowest radiation dose of any cone beam machine on the market. One scan is compared to about 8 days of normal background radiation. This doesn’t even mean 8 days exposed in the sun but only 8 days of normal radiation by simply living on the planet earth. As a comparison, a full mouth series of x-rays taken in a dental office using old technology x-ray films (not digital x-rays) is equivalent to 47 days of background radiation. As with all imaging modalities that use ionizing radiation, the use of CBCT does involve a consideration of risk to the patient. However, it has the benefit of providing useful information needed to assist in making a diagnosis and/or in facilitating treatment. When your doctor refers you for an x-ray examination, he has made the determination that the benefit outweighs the risk. Of course, it is ultimately up to you to decide whether to undergo the examination. Bear in mind that the risk of most x-ray examinations are much less than other risks we commonly accept in daily life.

 

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Commitment to Excellence

Spring St. Dental is committed to providing superior oral health services to our patients. We foster patient relationships based on mutual trust, excellent customer service, and the best personalized patient care available.

Prevention and Oral Health Maintenance

We believe preventative dental care and maintenance is vital to your dental health. Through regular scheduled exams we check the overall health of your teeth and gums, perform oral cancer screenings, and perform x-rays to detect problems before they worsen.

Office Sterilization and Safety Procedures

We want to ensure the health of our patients and our dental team. Spring St. Dental follows safety procedures recommended by the Occupational Safety & Health Administration (OSHA), the Environmental Protection Agency (EPA) and the Center for Disease Control (CDC).

Training & Expertise

We are a team of highly trained and skilled professionals who are licensed and certified. We are committed to continuing education and learning and we regularly attend training classes, dental lectures, and dental conventions so we can offer the latest dental techniques, procedures, products and equipment to our patients

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