Oral CT and its general knowledge of the examination
Oral CT examination is a medical examination means that can present three-dimensional images, it is the use of x-ray scanning technology on the oral cavity and maxillofacial scanning and generation of relevant data to form a three-dimensional stereo image. Oral CT has become an irreplaceable tool in the diagnosis and treatment of oral and maxillofacial diseases.
Before an oral CT examination, preliminary preparations are usually necessary. For example, removing metal objects and wearing civilian clothes. Then, the physician will have you lie down in the middle of the instrument and put on the instrument buckle, the instrument will rotate to complete the filming procedure. The entire procedure takes only a few minutes and is completely painless. During the procedure, the patient should be prepared to breathe as instructed by the doctor.
Oral CT can be used to examine a wide range of areas such as the maxillofacial skeleton, the spine, parts of the neck and the upper chest. Oral CT can be used in a wide range of medical applications, such as the diagnosis of oral tumors, maxillofacial fracture judgment and quantitative analysis, dental caries and root infections, Raynaud's disease and temporomandibular joint disorders, and so on. Therefore, oral CT is widely used in many fields such as stomatology, otorhinolaryngology, ophthalmology, and oral medical aesthetics.
Before using oral CT, the doctor must analyze the patient's task in detail each time. In addition, the radiation protection of the human body during oral CT examination needs to be strictly controlled. Currently, there are very clear regulations on radiation dose control for oral CT examinations. Please be sure to follow the instructions of your doctor and technician when performing oral CT examinations to avoid unnecessary radiation and injury.
Overview of CTBT and its applications
The full name is "Computed Tomography Tank Glass Bomb Test", or "CTBT", which was developed to supervise nuclear tests, especially those above or in the market track. It can not only detect the explosion of nuclear bombs, but also monitor earthquakes, isotope checks and other types of explosive events, which is very important to international security.
Compared to other means of monitoring, the CTBT has a very large scale of financial support. Since it was established in 1996, it has attracted support from 183 countries around the world, and its technical capabilities have grown rapidly, from three pieces of equipment in the beginning to more than 300 today. Meanwhile, CTBT has become a catalyst for lubricating international peace and security.
Application-wise, CTBT employs technology that spans the disciplines of math, physics and chemistry, using highly sophisticated equipment and tools. It can monitor nuclear tests in a variety of ways, collecting and analyzing data on gases, hydroelectric waves, and more. In addition, the CTBT can be halfway hit _across_ the border by means of multiple micro-locators. At the same time, the monitoring standard also provides for the processing program, the automatic processing and decoding of data to provide security.
Overall, the application of CTBT has an important supporting role in realizing the total ban of nuclear weapons. At the same time, with the continuous upgrading of monitoring equipment, CTBT will also have multiple functions such as early warning and prevention, contributing to global peace and stability.