From the category archives:

Radiography

Digital Radiography Myths – Dental Economics

September 12, 2011

Follow the link to my Dental Economics article on Radiography Myths and spacial resolution.
To help me understand the science behind some of these issues, I spoke with Doug Yoon, DDS, the founder of XDR Radiography. Dr. Yoon has more than 20 years of technical experience in the aerospace industry and more than 10 years of [...]

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Acteon Goes Apple

September 9, 2011

Acteon North America has released an Apple (OSx)  version of their acquisition and viewing software for use with the Sopro brand cameras. That means you can use a Sopro camera (including the amazing SoproLIFE that uses light fluorescence to detect caries) or even a digital radiography sensor and capture and view the image directly on an Apple computer such [...]

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Sensors for Dummies

September 7, 2011

A corded sensor has three basic elements. First is a scintillator. When x-rays impact the scintillator it fluoresces, creating a very precise pattern of light.

Many, but not all, sensors have an optical fibre. It transmits the light from the scintillator screen to the chip and protects the chip from x-rays.
A solid state computer chip receives [...]

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Nomad Benefits

September 2, 2011

One of my favorite products is the Nomad handheld x-ray machine. The Nomad is obviously economical and flexible but it is not so obviously a great benefit to certain patients. For example, wheelchair patients.
In the past wheelchair bound patients would either have to transfer to the dental chair, which was often very difficult or impossible, [...]

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Sensor Comparison

August 17, 2011

This is an interesting video of a short presentation by Dr. Wisam Al-Rawi to the IADMFR. He presents some preliminary findings regarding sensor image quality and compares it to advertised numbers.

NOTE: He states these are preliminary findings. Some other experts have pointed out possible flaws in the analysis so we should wait for the full [...]

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Epson Perfection V700 Good Choice for X-Ray Scanner

August 17, 2011

The best way to digitize film radiographs is to scan them with a flatbed desktop scanner. The scanner needs to have a “Transparency Adapter”. This is a device which allows users to shine a light through a transparent object in order to scan it. Transparency adapters were devised primarily for scanning 35 mm slides but work just [...]

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3dMD Software

August 13, 2011

3dMD’s packaged hardware and software solutions are designed to provide valuable information that help dental specialists and surgeons make the best decision for patient treatment.
via 3dMD Home Page.

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XDR Diagnotic Features

August 12, 2011

I have long held that one of the primary benefits of digital radiography is the ability to use software to enhance the image and improve diagnostic efficiency.
All too often dentists, and even the vendors selling radiography to dentists, have been caught up in the mantra, what looks most like film. I assert this is the [...]

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Sensor Warranty

August 10, 2011

Every digital sensor comes with a warranty. However the warranties vary significantly and they are always being changed by the vendors. Comparing warranties is one way to compare the relative quality of different sensors. On the other hand don’t get too carried away with this, there are ways to hide extra costs and confuse the [...]

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3D Live

July 30, 2011

UPDATE:I took my own advice and attended this program. My old tech geek buddy John Flucke was there as a presenter and was great as usual. The more I learn about CBCT and 3D dentistry the more impressed I become. It is without doubt the future of dentistry and you know the future is coming…and [...]

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Quick Scan Low Dose 3D

July 25, 2011

Imaging Sciences, the i-Cat folks, have released a new low radiation 3D scan called Quick Dose. Quick Dose can provide the user with a full 3D image with a radation dose of 27 uSv. This compares to a typical digital pan which has a dose of 24 uSv. There is always a trade off with radiation [...]

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CBCT Diagnosis

July 19, 2011

Image artifacts such as noise, scatter, and beam hardening are inevitable in the 3D imaging world. But many dental practitioners remain unaware of them and the impact they can have on diagnostic accuracy. The  following Dr. Bicuspid (registration required) article explains.
With the advent of more affordable cone-beam CT systems (CBCT), a growing number of dental practitioners are [...]

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Why Digital Radiography? More Than You Think

June 28, 2011

Most everyone is aware that a major advantage of digital x-rays is the speed of acquisition. Once the sensor is exposed the image is produced within seconds. This of course saves the time of going to the processor, opening the film packs waiting for the chemical processing then labeling and mounting the films. However there [...]

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Digital Radiography Training

June 20, 2011

There are three separate areas that will require training for the doctor and staff in order to use digital radiography well. These are:

General use of the software. This would include how to open it, how to find a patient, how to find a specific radiograph and how to copy or print the images.
How to take [...]

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Another Radiography Myth

May 23, 2011

I have learned a lot of interesting and rather obscure facts from Doug Yoon. He is the founder and chief scientific mind behind XDR Radiography. However one of Doug’s most irritating “Digital Radiography Myths” is also one of the simplest to understand.
Myth: Salesman says. “Our sensor is 100% active you will get an image that [...]

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Rectangular Collimation with Nomad

May 19, 2011

My friends over at Nomad the makers of the hand held x-ray device have introduced a rectangular collimation device. It is a simple aperture system that attaches to the Nomad cone. The benfit is reduced scatter radiation and improved image quality.

Even though it is better, users were reluctant to use rectangular collimation with old fashioned [...]

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CS 9300 3D Image System

May 16, 2011

Carestream (Kodak) is showing a new cone beam (CBCT) unit the CS 9300 at CDA. The unit looks like a fancy stand up pano. It is a combination pano and 3D Cone beam similar to the Kodak 9000. Both  machines take pano equivalent images and 3D images. The improvement in the 9300 over the 9000 is the multiple [...]

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New at CDA – Tru-Align

May 12, 2011

Cruisin’ the show room floor at the CDA I have discovered several interesting new tech products and some advances on old products. One of the most interesting is called Tru-Align from IDI. It is a combination rectangular collimator and aiming device.

The collimator reduces scatter radiation and improves image quality. Reducing scatter reduces patient exposure. This [...]

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Run and hide no more

May 11, 2011

Following is a link to an article I wrote for RDH Magazine on Hand Held X-Rays.
We’ve had X-ray safety protocol drilled into us since day one, and staying in the room and holding the thing is a huge no-no. We need to run from the room, preferably behind several walls and layers of lead, before we [...]

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CBCT Training in Dental Schools

April 26, 2011

Dental schools in the U.S., U.K., and Australia are beginning to adopt cone-beam CT technology into their curricula, but few currently provide training on this equipment to predoctoral and undergraduate students,
Good, more please and faster. Cone Beam 3D CT scans are absolutely amazing!!!  But as general dentists we simply do not have the training to [...]

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