Preventing a change in the color of the teeth

Brushing your teeth after every meal will help prevent stains from forming. Dentists recommend rinsing your mouth with water after drinking alcohol, coffee, or other beverages and foods that may cause stains on your teeth. Internal stains that occur due to trauma to nerves or blood vessels in the teeth can be prevented. You may need a root canal treatment to remove the decayed inner part of the tooth (the marrow of the tooth).
Avoid overexposing your teeth to fluoride to prevent self-staining in children. As the enamel forms, fluoride does not change the color of the teeth.