is a progressive destruction of any kind of bone
structure, including the skull
and other bones, or the teeth
. Caries can be caused by osteomyelitis
, which is a bacterial disease
. A disease which involves caries is mastoiditis
, an inflammation
of the mastoid process
, in which the bone gets eroded.
is one of many types of caries. Dental caries affects different parts of the teeth: enamel, dentin or cementum; in the crown or the root of the tooth. Nearly all cases contain bacteria such as streptococcus mutans
which produces lactic acid
as the products responsible for the caries.