Decay teeth harbour germ: Plaque and Calculus are what people outside dental profession called
dirt of the mouth. The dirt actually inhabits small germs called bacteria. These bacteria can get into the blood stream and carry other part of the body. When such bacteria get to the heart, they cause disease of the heart called bacteria endocarditic
Calculus also harbours the bacteria that decay the teeth. These bacteria produce concentrated acid which is a strong acid. This acid actually does the destruction of the teeth substance.
Plaque and Calculus also cause smelling of the mouth. In fact, it is one of the major causes of what is known as bad breath. Other causes of mouth smelling are: inadequate improper brushing of teeth, Decay teeth, Infection of the respiratory tract and oesophagus, (sinusitis)
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