Stomatologists have long felt the convenience of operating oral X-ray machines. However, sometimes we are very dissatisfied with the effect of the posterior teeth, sometimes the image is whitish, and sometimes we can't take it, but we can't find the reason. There are three main standards for oral X-ray machine imaging:
1. Pulp.
2. Periodontal ligament.
3. Trabecular bone.
If these three items can be seen very clearly on the film taken by the oral X-ray machine, then we can conclude that the display effect of this X-ray film has reached the A-level photo effect. During the operation of the dentist using the oral X-ray machine, the shooting operation of the front teeth can easily meet this standard, but it is difficult to achieve this effect for the X-ray machine shooting of the posterior teeth. Is there a problem with the quality of the dental X-ray machine? Or is there such a problem with the X-ray film used in the oral X-ray machine? This problem plagues many practitioners in the dental industry.
We analyze the reasons from the following aspects:
1. Oral X-ray machine
The oral X-ray machine has three parameters: kilovolt (KV), milliampere (mA), and exposure time (S). These three quantities have different physical meanings:
a. The kilovolt value (KV) of the oral X-ray determines the penetration of the shooting. The larger the X-ray kilovolt value (KV), the thicker the tissue thickness that can be photographed (the better the photographing effect for fat people).
b. The milliampere value (mA) of the oral X-ray machine determines the density (or black and white contrast) of the oral X-ray film. The greater the milliamp value (mA), the greater the black and white contrast of the X-ray film, and the richer the content of the X-ray film. The current international standard for the milliamp value (mA) of oral X-ray machines should be 7mA-10mA. The international standard for gastrointestinal X-ray machines should be 500mA-800mA (foreign gastrointestinal X-ray machines below 500mA have long been discontinued)
c. Exposure time (S) determines the dose of oral X-rays (that is, how many electrons are controlled)
2. The thickness of the posterior teeth taken by the oral X-ray machine
The density of our facial muscles is very high, and the thickness of the back teeth when shooting is one third thicker than the thickest part of our palm.
Analyze the problem of posterior teeth shooting from the above two reasons. The whitening of the image is due to the insufficient milliampere value (mA) of the oral X-ray machine and the poor contrast of the X-ray film (the international standard should be 7mA-10mA, with X-ray digital The milliamp value of the imported X-ray machine of the imaging system is 4 mA); the image of the posterior teeth cannot be taken (correctly positioned) because the kV value (KV) of the X-ray machine is not enough, and it cannot penetrate the photographed part (In order to prolong the service life of the X-ray tube inside the oral X-ray machine and reduce the damage to the patient, the maximum power adjusted at the factory should be lower than the maximum power in the manual, so the kilovolt value (KV) Reduced). The above two problems are the most important problems in posterior teeth shooting.
X-ray protection during the use of the oral X-ray machine:
While using X-rays, people have discovered problems that cause hair loss, skin burns, visual impairment of staff, leukemia and other radiation damage. In order to reduce the damage of X-rays to the human body, corresponding protective measures must be taken. This has long been recognized by ORAL -E company fully considers the use of multi-frequency, multi-band, and identification functions in the supplied dental X-ray equipment to reduce harm to the sick. It is recommended that you use the OR-C101 ultra-low-radiation dental X-ray machine (mobile) provided by ORAL-E. The new generation of computerized intelligent ultra-low-radiation dental X-ray machine adopts imported assembled X-ray generator with the world inside the tube head. The tube with the smallest focal point (0.8×0.8mm) on the uppermost focal point. The tiny focal point makes the image clearer and at the same time reduces the X-ray dose by 16∽20 times compared with other products at home and abroad. The air scattering line and leakage are 1 meter away from the irradiation center. The radiation dose is close to 0, and the tube head window uses 1.5mm pure aluminum to filter X-rays, thereby protecting the exposed skin. Better protect the health of patients and doctors.
OR-C101 Oral X-ray machine features:
1. Three KV options to meet different needs, the birth of ORAL-E this product minimizes the harm of X-rays to patients.
2. Processed by a microprocessor, the X-ray dose is stable and can be set reasonably according to the different conditions of the patient
3. Long-distance, all-round wireless remote control, easy to use
4. Intelligent control, the micro-focus X-ray tube image is clearer
5. Low radiation dose, safer to use
Leakage radiation: Leakage radiation not more than 0.002mgh/h away from 1 meter
(The national standard stipulates that no more than 0.25mgh/h)
Portable oral X-ray machine
Medical portable X-ray machine is also called medical portable X-ray machine or medical X-ray fluoroscope. This type of X-ray machine is suitable for medical use, mainly in clinics, township health centers, athlete training departments and school clinics. Due to its low cost, low X-ray dose (high safety), simple operation, and small size, it satisfies the equipment gap of medical institutions that cannot accommodate large-scale X-ray equipment. In recent years, it has been favored by many medical industries and workers. . Hospitals with conditions can use X-ray film sensors to reduce work flow and reduce physical contact with the X-ray machine room to better protect the body.
