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Categories of Oral Diseases1. Read the text and fill in the gaps (1-5) with the parts of the sentences (a-e): a) … pathogenic dental plaque on the surfaces of the teeth and therefore are known as plaque diseases. b) … are acquired conditions. c) … in the acquired and craniofacial category. d) … which would include a wide variety of conditions ranging from heredity to accidents. e) … the host’s resistance is impaired Oral diseases and abnormalities can be conveniently grouped into three categories: 1. Dental caries and periodontal disease, both of which (1) …. 2. Acquired oral conditions other than dental caries and periodontal diseases such as oral cancer, HIV/ AIDS, and opportunistic infections, which are infections caused by a usually harmless microorganism that can become capable of causing disease when (2) …. 3. Craniofacial disorders, or disordersthat involve boththe cranium (portion of the skull that encases the brain) and the face, (3) …. The treatment of caries and periodontal diseases, and their sequelae account the most of the estimated $60 billion U.S. dental bill for the year 2000*. Both caries and periodontal diseases are caused by the presence of (4) …. Any major reduction in the incidence of caries and periodontal disease will release resources for the investigation and treatment of conditions included (5) …. *Health Care Financing Administration (HCFA), National Health Expenditures Projections: 1998 – 2000 2. Explain underlined words in Russian. 3. Say what the main categories of oral diseases are. Дата добавления: 2015-02-05 | Просмотры: 664 | Нарушение авторских прав |