How often can teeth x-rays do no harm?
One of the major breakthroughs in diagnostic medicine has been the use of x-rays to study the anatomical and structural characteristics of the human body. Despite the fact that the discovery of ionizing rays occurred in the 19th century, radiography still remains the most popular method of diagnosis, including in the dental practice. However, as we know, x-rays can harm human health, so it is important to know how often you can do x-rays of the teeth.
The use of x-rays in dentistry
In dentistry x-rays of your teeth is the simplest, cheapest and effective method for diagnosing many pathologies of zubochelyustny system. With the help of dental x-rays can detect hidden carious process, to appreciate the depth of destruction of hard tissues of teeth, to diagnose inflammatory diseases of the periodontium, and more.
Intraoral x-ray of the tooth is doing to other equipment that provides a higher level of radiation exposure, but even so, the harm from a small dose of radiation equal to the dose received in a whole day under the open sun. Methods intraoral x-ray examination of the teeth cause more damage due to the higher radiation doses, and so they are often not recommended.
The danger of x-ray radiation to humans
In some cases, the harm of x-ray radiation is exaggerated, but to deny its wrong. In order to understand how x-ray harmful to humans, it is necessary to know the mechanisms of negative impact. Ionizing radiation passing through the body of the subject, provokes some reactions:
- The change in the protein structure.
- Ionization of the molecules of the tissues.
- Accelerates the aging process of cells, disrupts the normal course of maturation of new.
- Temporarily changes the composition of the blood.
All these processes can cause many diseases, so it is important to keep the following safety regulations: patients must wear special protective aprons to protect organs particularly sensitive to radiation, and doctors must carefully monitor the dose and the irradiation time. The shorter x-ray examination, the less harm is caused to the body.
In the calculation of the amount of harmful effects should also be considered a place of passage of x-rays. Organs of the human body have different perceptions of radiation exposure. For example, the most sensitive to ionizing radiation are the bone marrow, lungs and gonads. In the head and neck are most susceptible to x-rays, thyroid and the brain – their index of sensitivity is 0.05 and 0.025, respectively, in the sexual gonad index of 0.2.
Used in dentistry x-rays of teeth is carried out on the equipment, and synthesizing the low-energy rays, and the study lasts only a few seconds, so it is considered relatively harmless.
A little bit about the need to study
How to do an x-ray and can I do without it? A large part of the dental pathologies it is impossible to see during a simple inspection, as in the oral cavity is available to review only the crowns of the teeth and the mucous membranes. To assess the condition of the roots, periodontal, periodontium, alveolar bone and body of the jaw without the help of x-rays can only be surgically removed, which is extremely inadequate – few people would consent to such intervention. Many diseases begin to manifest themselves only in the later stages, when it required a complex treatment. With the help of x-rays it is possible to diagnose and plan treatment of pathologies.
In that case, if there is a need often to take x-rays, it is desirable to use a radiovisiograph – in this case, the load level minimum for a high level of informativeness.
Much more will bring harm ignoring unpleasant symptoms or treatment blind. For example, cysts located at the tooth roots, very long time to grow without any signs. Root canal treatment of the tooth, the roots of which are involved in the pathological process, will not bring success in the future will have to perelechivat the tooth or even to remove it.
How often can you do teeth x-rays?
To answer how many times you can do an x-ray of the teeth should be familiar with the provisions of SanPiN (sanitary norms and rules) – maximum dose should not exceed 150 mSv in a year. To understand better, you can make a comparison: these doses are obtained after 500 surveys radiovisiography, 50 shots on a good quality unit for intraoral radiography, 80 digital orthopantomogram.
X-rays of teeth is a safe test that can be done a few times a month without harm to the body. In order to verify this, the radiation dose received during dental x-rays can be compared with other types of radiography:
- Chest x – ray- 0,6–0,8 mSv.
- Mammography of 0.2–0.3 mSv.
- Intraoral contact radiography – to 0.35 mSv.
Summing up we can conclude that dental x-rays is in itself harmless. A survey on modern equipment significantly reduces radiation exposure, so it can be done repeatedly without injury.