Dental x-ray also known as orthopantomogram (OPG) is a very low dose x-ray which shows your entire mouth in one image. This x-ray is useful for dentists to get a detailed look at problems with individual teeth. As with other x-rays, no special preparation is required for this X-ray
An OPG is obtained with an x-ray machine specially designed just for your teeth. The technologist will ask you to stand with your head against the machine and will adjust its height to where it is comfortable for you. You will be asked to gently bite on a peg which has grooves in it (above and below) for your front teeth. As the peg will be covered with a plastic disposable sleeve, there is no risk of infection. You will be asked to place your tongue touching the roof of your mouth. The machine moves around you slowly as the picture is taken. It is essential that you keep as still as possible to get a good picture. Any movement can cause the image to blurry and will require a repeat x-ray.
Generally, OPG examinations take about 10 to 20 minutes to complete.