Your appearance and your health will benefit from replacing missing teeth. Without support from the denture, facial muscles sag, making a person look older. Dentures are made of durable materials resulting in a natural smile and can last for years when cared for properly. Even if you wear full dentures, you must take good care of your mouth. Brush your gums, tongue and palate every morning with a soft-bristled brush before you insert your dentures to stimulate circulation in your tissues and help remove plaque.