1. Dental carriers: Dental caries, commonly known as cavities or tooth decay, is a prevalent dental disease. It occurs when bacteria in the mouth produce acids that gradually erode the hard enamel covering the teeth.
2. Periodontal disease(gingivitis and periodontitis): Gingivitis is an early stage of gum disease characterized by inflammation of the gums, often due to poor oral hygiene. If not treated, gingivitis can progress to periodontitis, a more severe form of gum disease that can damage the supporting structures of the teeth, including the bone.