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Task 5. Translate the given sentences into Russian, close your book and translate them back into English.

  1. Dental caries is characterized by demineralization of the mineral portion of enamel and dentine followed by disintegration of their organic material.

  2. In order to maintain a good oral hygiene you need to keep the teeth free of plaque.

  3. Some pre cancerous lesions often are found by dentist when a patient comes for checking up.

  4. You can use a soft-bristle toothbrush to brush your teeth and brush at least twice a day with fluoride toothpaste to remove plaque and bacteria.

  5. Make flossing your habit and do it regularly.

  6. A proper nutrition is important for strong teeth and gums that can resist diseases.

  7. Smoking is a major risk factor for oral and dental disease, it may even cause oral cancer.

  8. Dental caries is another name for tooth decay where bacterial infection affects the hard outer layer of the teeth.

  9. Periodontal disease is a bacterial infection that destroys the supporting structures holding the teeth in their place.

  10. Tobacco reduces blood flow to the gums therefore, the gums are deprived of proper oxygen supply and nutrients needed to stay healthy and prevent bacterial infections.

Task 6. Retell the text.

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