ELECTRONIC HASTEEI    Dental Radiography

Dental Radiographs are commonly called x-rays. Dentists use radiographs for many reasons :
to find hidden dental structures, malignant or benign masses, bone loss, and cavities .
A radiographic image is formed by a controlled burst of X-ray radiation which penetrates oral structures at different levels
depending on varying anatomical densities, before striking the film or sensor .
Teeth appear lighter because less radiation penetrates them to reach the film .
Dental caries, infections and other changes in the bone density, and the periodontal ligament, appear darker because X-rays readily penetrate these less dense structures .
Dental restorations (fillings, crowns) may appear lighter or darker, depending on the density of the material .
The dosage of X-ray radiation received by a dental patient is typically small equivalent to a few days
worth of background environmental radiation exposure, or similar to the dose received during a cross-country airplane flight
Incidental exposure is further reduced by the use of a lead shield, lead apron, sometimes with a lead thyroid collar .
Technician exposure is reduced by stepping out of the room, or behind adequate shielding material, when the X-ray source is activated .
Once photographic film has been exposed to X-ray radiation, it needs to be developed
traditionally using a process where the film is exposed to a series of chemicals in a dark room as the films are sensitive to normal light .
This can be a time-consuming process, and incorrect exposures or mistakes -
in the development process can necessitate retakes, exposing the patient to additional radiation .
Digital x-rays, which replace the film with an electronic sensor, address some of these issues, and are becoming widely used in dentistry as the technology evolves .
They may require less radiation and are processed much more quickly than conventional radiographic films, often instantly viewable on a computer .
However digital sensors are extremely costly and have historically had poor resolution, though this is much improved in modern sensors .
This preoperative photo of tooth #3, reveals no clinically apparent decay other than a small spot within the central fossa .
In fact, decay could not be detected with an explorer .
Radiographic evaluation, however, revealed an extensive region of demineralization within the dentin (arrows) of the mesial half of the tooth .
When a bur was used to remove the occlusal large hollow was found within the crown and it was discovered that a hole in the side of the tooth large enough to allow the tip of the explorer to pass was contiguous with this hollow .
After all of the decay had been removed, the pulp chamber had been exposed and most of the mesial half of the crown was either missing or poorly supported .
It is possible for both tooth decay and periodontal disease to be missed during a clinical exam, and radiographic evaluation of the dental and periodontal tissues is a critical segment of the comprehensive oral examination .
The photographic montage at right depicts a situation in which extensive decay had been overlooked by a number of dentists prior to radiographic evaluation .

Space-efficient design
As a 3D imaging system with cephalometric, X-era Smart 3D is with the smallest footprint among all EL-HAST imaging system. It will t nicely in an X-ray room as small as 2m in width.

High denition

High denition image with minimal 80μm voxel is so clear it displays precise shape of the root canal and the apical direction. This high level of sharpness can be utilized not only in an endodontic treatment but also in other types of treatment.

3D imaging system
FOV with a height of approximately 6cm enables scanning the area large enough to include the opposing tooth while avoiding the lens of the patients eyes which are highly sensitive to radiation. X-era Smart 3D protects patients from radiation exposure while capturing the desired area

Precise patient positioning
To minimize retakes and to capture a clear image, a bite plate with silicon impression material is added to the head support so a patient's head is held securely in place.

Super high denition clinical image quality for accurate diagnosis
Adopting Direct CMOS sensor and unique image construction technology, blur-free and sharp image can be obtained. Semiconductor that is used for photon counting directly converts X-ray to electronic signal and create a blur-free image. Conventional sensor converts X-ray to visible light by scintillator, and CCD element transforms the light into electronic signal. In that process, scintillator cause the electrons to diuse, resulting in the blurry image.

Electronic Hasteei
X-RAY Products/integrated solutions

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