Dental X-rays are an important part of the diagnosis and treatment of oral health problems. When you start seeing a new dentist, they will ask you for recent X-rays and dental records. If you do not have any, the dentist will take X-ray images of your teeth and jaws.
What tends to worry people the most about X-rays is the radiation. While X-ray machines do work by directing radioactive rays at the teeth and jaw, the radiation from these machines is less than what we are exposed to in our everyday lives.
Dental images help a dentist diagnose dental problems and come up with treatment plans. The images also help the dentist monitor the progress of a particular treatment. The many uses of dental X-rays include:
X-rays are a type of radiation that is generated when a fast-moving stream of electrons smash into a positively charged surface. The whole process of generating X-rays happens in an X-ray tube, which is made up of three parts:
1. The filament is found at one end of the X-ray tube. When electricity passes through the filament, it heats up and emits electrons.
2. The target surface or anode is found at the other end of the tube, opposite the filament. It has a positive charge that attracts the emitted electrons, which are negatively charged. Traditionally, the surface was made of tungsten.
When the electrons are generated by the filament, they are attracted by the anode. The force of attraction pulls them toward the anode at high speed, and they collide into the anode's surface. The collision causes the release of radiation.
3. The position indicating device (PID) is part of the housing that encases the X-ray tube. Its job is to guide the generated X-rays through the teeth and jaws to the X-ray film. Health regulations require that the PID should release an X-ray beam no wider than seven centimeters.
Most dental X-rays are intra-oral, which means that the x-ray film is placed in the mouth. The dentist asks the patient to bite down on a thin, cardboard-covered X-ray film. The dentist and patient will wear lead aprons to block radiation from reaching the body. The dentist will then use the X-ray machine to take detailed images of the teeth, jaw and soft tissue.
1. Most of it is absorbed by tissues in the part of the mouth that the dentist wants to image.
2. The beam passes through the tissues and hits the X-ray film. Where X-rays come into contact with the film, that particular spot on the film turns black. The bones and teeth do not allow X-rays to pass through them. The part of the film directly behind the teeth and jaws remains light-colored.
3. The rest of the beam is scattered by the other tissues in the mouth.
The amount of radiation absorbed by a person during a dental x-ray is much less than the amount absorbed from sunlight or a microwave oven.
Medical professionals only use X-ray imaging when they have to. And even then, the amount of radiation needed to take an X-ray is minuscule. So, when the dentist asks to take a dental x-ray, it is only because it is needed for the treatment of your teeth.
Call (305) 203-4132 today to reach Gables Exceptional Dentistry.
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