American When Would I Need a Dental Crown? Emergency Dental Service emergencydentalservice 799 views A dental crown is a cap placed over a damaged tooth to repair and restore its strength. It is required after a root canal to improve appearance, save deteriorated teeth, etc. « Previous emergency dentistry Emergency dentist Emergency dentist near me Emergency dental care emergency dentist TX Emergency Dentist Margate FL Emergency Dental 24 Hour Dentist 24 Hour Emergency Dentists Emergency Dentist 24/7