Tooth decay is caused by bacteria in mouth. These bacteria make sticky substance called plaque that causes enamel to decay. Poor oral hygiene can raise your child’s risk to tooth decay.

Once the decay is removed, it can be filled using following

  1. Composite
  2. Glass ionomer cement

Composite (plastic) resins are matched to be the same color as your teeth and therefore used where a natural appearance is desired. The ingredients are mixed and placed directly into the cavity, where they harden. Composites may not be the ideal material for large fillings as they may chip or wear over time. They can also become stained from coffee, tea or tobacco, and do not last as long as other types of fillings generally from three to 10 years

Glass ionomer cement

Glass Ionomer cement is also the same color as your teeth and are mainly used as filling material in primary (milk) teeth. Once the caries or decay progresses to deeper layer of tooth, it can’t be saved merely by filling. For such instances, root canal is preferred.