In this section, we'll take a look at the steps that occur when a cavity develops.
Wherever a cavity forms, the initial formation will begin with demineralization or decalcification of the enamel surface. An incipient lesion will form. Clinically, demineralization will be seen as a white spot and represents that a problem on the enamel surface is occurring. Areas of demineralization can remineralize to arrest (stop) the decay. The "decay" is actually reversible to this point, but the acids produced by Strep. mutans are neutralized. The easiest areas to see this finding are on the smooth surfaces of the teeth.
The same thing occurs on the interproximal surfaces, but is harder to visualize clinically. That's why we rely on radiographs. Take a look at the distal surface of tooth #29. This shows an incipient lesion that is within the enamel and getting closer to the DEJ.
Date last modified: May 14, 2012.
Created with SoftChalk LessonBuilder