Cavities often can be found in the pits and grooves of our molars. They can appear chalky white or shades of brown. The texture of the cavities is often soft, sticky, or sometimes mushy. When the doctor is checking for cavities they use an instrument called an explorer to feel the texture of the pits and grooves. If the explorer "sticks" or "catches" in a pit or groove and the groove appears discolored, then it likely has a cavity. Often a sealant can be placed as a preventative measure to protect the healthy pits and grooves of the teeth.