Dental caries can involve any tooth or possibly all teeth. The filling prevents further decay. Tooth discomfort after eating sugar. The most common tooth-cavity sites are the gum line, biting surfaces, and surfaces between adjacent teeth. Unpleasant taste in the child's mouth and bad breath because of stagnant food and bacteria trapped in the cavity.
Acid is produced by bacteria in the child's mouth.
The combination of sugars from food debris, bacteria, and chemicals in the child's saliva form a substance called plaque. Plaque becomes a localized site of acid production, which forms continuously at the neck of each tooth. This plaque must be thoroughly cleaned away at the gum line daily or it fosters tooth decay. Poor dental hygiene. Your child should brush and floss teeth regularly.