Dental x-rays are taken routinely by your dentist. There are many diseases and dental defects, which can not be seen by the naked eye, especially where teeth are concerned. These may include such things as decay under old fillings, teeth trapped below the gums, cavities between the teeth, bone loss as a result of gum disease and changes in either jaw bone structure which can be affected by many systemic diseases.
If you are a new patient, your dentist may recommend x-rays to check the current status of your mouth and to check for hidden problems. Upon your first visit to the dentist he or she will usually take those x-rays that will be necessary to comprehensively assess your oral health. A full series of x-rays usually consists of 14 – 18 films. A Panoramic x-ray film showing a much greater area of your jaw bones may be needed as well in order for your dentist to comfortably and competently examine you. Every six months or so your dentist may take a small series of x-rays consisting of four to six films. A six-month period is a long time in the life of a cavity and it is for this reason that a visit to the dentist every six months is so important.