Children's cavities can also regrow new teeth. Cavities, also known as dental caries, refer to the destruction of hard dental tissues under a bacterial infection. It is crucial to treat children's cavities early, otherwise, they may affect the underlying new teeth. If the cavity reaches the level of periapical inflammation, meaning the dental pulp tissues become pus-filled or necrotic, and gum abscesses appear, it could cause the newly emerged teeth to develop caries. Sometimes, it may also lead to abnormal eruption pathways of the new teeth, such as abnormal eruptions on the lip side or cheek side, resulting in misaligned teeth, which can impact the arrangement of the child’s primary or permanent teeth.