There are several reasons dentists may recommend removing a tooth. Conditions that affect teeth, like tooth decay and gum disease, can be treated by removing a tooth to make sure the rest of your mouth is healthy. Sometimes, teeth can be removed because they are damaging other teeth. Treatment for Tooth Decay or Gum Disease: Tooth decay is commonly caused by dental plaque, which builds up on teeth over time. Not removing this plaque can lead to cavities, which destroy the tooth’s structure. Your dentist may recommend removing the damaged part of the tooth to treat this condition. Removing Teeth to Prevent Further Damage: Sometimes a tooth has become loose over time and cannot be saved. To prevent damage to other teeth or the bone that supports them, it may be necessary to remove a tooth that has been weakened by decay or injury. Removing Teeth That Are Damaging Others: Over time, certain teeth may become worn or move in such a way that they begin to crowd or damage other teeth. In these cases, your dentist may recommend removing one or more teeth so that they do not continue causing harm and discomfort to you.