The most informative diagnostic technique with a minimum dose of radiation is considered to be digital visiography. In dentistry, patient-friendly digital x-ray devices are used for diagnostic and therapeutic purposes. An X-ray of the teeth is done using a special visiograph device, and the results of the study are displayed on a personal computer.
A radiovisiograph converts the signals into a picture that it instantly sends to the monitor. The received data is processed by programs and stored in the PC memory. Doctors say that in a few years the digital filmless system will be able to completely replace the traditional X-ray.
How does a visiograph work?
A radiovisiograph is a device that allows you to take accurate pictures of teeth that are transmitted to a computer. In medicine, there are two types of dental radiography: the first is digital, the second is film. Modern medical institutions are trying to use tapeless diagnostics.
An image using a visiograph is done in a few seconds. During the study, radiation exposure per person decreases from ten to sixteen times due to very sensitive sensors. The digital image shows not only information about the condition of each tooth, but also the bone tissue located around it. Even a qualified doctor can not always with the naked eye notice damage and pathological changes in bone tissue.
The device consists of three components: the first is a sensor, the second is a connecting cord, and the third is an analog-to-digital converter. The sensor in its appearance is similar to a chip made of silicone. Using a digital sensor, incoming pulses are recorded and transmitted to the device. The converter looks like a small candy bar with two ports (one for the chip, the second for connecting to a personal computer).
All received data passes through a special converter, is further processed by software and displayed as a snapshot on the display. The visiograph functions only with the visiographic complex, which includes an x-ray apparatus. Before starting the manipulation, the patient must wear a protective apron made with lead material.
The procedure is not complicated: a person sits on a couch or a special chair located next to the visiograph. Next, the specialist directs the tube toward the patient for diagnosis and adjusts the sensitive sensor to the diseased tooth. The doctor turns on the device and the image is automatically taken. After a successful shot, the patient can be free. The results of the study will be ready in 10-15 minutes. During this time, the doctor will be able to carefully examine the image and describe its details.
Indications for radiography using a visiograph
An X-ray of the teeth is done so that the dentist can analyze the condition of both individual teeth and the jaws of the patient. The control and intermediate images are made by the visiographer during therapy and dental canal filling. Endodontic treatment is not performed without an x-ray.
An intermediate row of images is needed in order to measure the working length of the dental canal and determine its patency. A control x-ray is indicated after completion of therapy to control the sealed roots. Digital visiography will allow you to avoid serious complications, to control the stages of filling the dental canals and adjust the work of the dentist.
What can be found in the visiographic image?
Radiovisiography is used in therapeutic dentistry, implantology and endodontics. The technique is indispensable in the treatment of dental diseases, canal filling and machining of dental roots. On the resulting image, a qualified dentist will be able to accurately determine the shape of the channel, its length and depth, and also select the correct size of the metal pin. With the help of a snapshot, it is easy for a specialist to detect a part of a chipped instrument and to control the quality of the seal.
The visiographic image reveals:
- inflammatory foci (granulomas, cysts);
- cariosis (in the picture it will be visible as a dark, almost black area);
- loose, connective and bone tissue (gray areas in the image);
- dense structures such as pins, fillings and dentures (white areas in the photo will indicate their presence).
Extremely sensitive chip has a high level of detail. The result is a sharp and clear photo. A high-quality image will help the doctor make a diagnosis, identify the smallest inflammatory and carious lesions. A visiographic image is able to give the dentist detailed information about the state of the fillings.
The benefits of digital radiovisiography for the dentist
A few years ago, specialists used only x-ray film, but now, more and more dentists are resorting to digital research methods. Filmless diagnostics is good because the data obtained is instantly processed by the program and displayed on the display (medical personnel no longer need to use hazardous chemical compounds to display photos).
To date, it’s very easy for dentists to look at any picture taken a few weeks ago, since the results of the study are stored in the PC’s memory. The resulting photo can be sent via the Internet to any corner of the world, for example, if the doctor is on vacation or has left for work.
The plus of the visiographic method is that the photo can be enlarged several times, corrected contrast and examined teeth and roots in detail. Using the program, the dentist can examine the texture of bone tissue, alveolar processes, tooth roots or periodontal.
Advantages of the technique for the patient
The advantages of visiography for the patient are: safety of manipulation; affordable cost; rapidity; painless procedure. Supernova models of radiovisiographs are characterized by less radiation exposure and are considered the safest for human health. Devices brought from abroad produce even beams and have an ultra-sensitive chip. Scientists believe that this device will not be able to harm the well-being of a person, so the digital technique is not prohibited even for underage children.
According to permissible standards, visiography can be safely performed up to sixty times in one year. Digital diagnosis is not prohibited for pregnant women. X-rays only shine through the tissues of the teeth and do not affect the fetus. Dentists believe that radiovisiography is safest to do in the second trimester of pregnancy. During lactation, it is also allowed to conduct a study without harm to the mother and child. The manipulation is carried out by an experienced medical professional strictly on the recommendation of the dentist.
The work of the radiovisiograph is aimed at helping the dentist study the structure of the dentition, detect the affected areas with dental diseases and make the correct diagnosis.