At the first stage of the caries, an attempt should be made to control the caries by applying caries-preventing agents under the supervision of the dentist. Fissure caries can be closed with fluid and simple fillings and monitored. If the caries progresses, filling becomes inevitable. Early diagnosis is always very useful, likewise, the earlier the tooth decay is detected. Teeth that are not filled in time face serious problems. Therefore, our oral health is under threat.