Flouride in our toothpaste is excellent at reducing decay – no question. But it also makes any decay that does develop more difficult to recognise than in years gone by, so as a result regular dental x-rays are now an essential part of good dental care.
Because of this hidden nature of dental decay, we usually need to take dental x-rays to look for decay and other disease. These usually need to be taken every 1 to 2 years depending on your decay risk.
Anyone who has not received dental x-rays in the past few years, may be overdue – otherwise when a cavity is finally discovered it may be quite large.