In our office we use the Diagnodent Laser for early decay dectection.  The Diagnodent is capable of finding very small cavities that  can be filled with a minimum of treatment.  It can even detect decay that may be unapparent on the surface of the tooth, but is spreading in the tooth underneath the enamel.  It is our goal to find and correct any dental problems while they are still in the early stages of development.  The Diagnodent is one of the devices we use in our office to achieve this goal.