- •Lesson 4 Dental Laboratory Hygiene
- •І. Active Vocabulary
- •Dental Laboratory Hygiene
- •III. Vocabulary and Speech Exercises
- •I. Give English equivalents of the following words and word-combinations from the text.
- •II. Say if the following statements are true or false. Correct the false statements to make them true.
- •III. Arrange the following words and word-combinations in antonymic pairs.
- •IV. Fill in the gaps with the words from the brackets.
- •IV. Grammar Exercises
- •I. Write the plural of each of these nouns.
- •II. Write the singular of the following nouns.
- •III. Say that (a) belongs to (b).
- •IV. Translate the following sentences into English:
III. Vocabulary and Speech Exercises
I. Give English equivalents of the following words and word-combinations from the text.
Увесь службовий персонал; бути зобов'язаним; безпечне робоче середовище; багато способів; особиста гігієна; стосовно здоров'я та безпеки; застосування обладнання та техніки; роботодавець; захисний одяг; робоче місце; бути щепленим від гепатиту Б та грипу; герметичний контейнер; рукавички; маска; фартух; окуляри; промивати під протічною водою; замочувати в дезинфікуючому засобі; заражений слиною чи кров'ю; вимагати особливої уваги; примірки; металічні ковпачки (копінги); частини ортодонтичної лицевої дуги; шпатель; хімічно оброблений; водопостачання; роздягалка.
II. Say if the following statements are true or false. Correct the false statements to make them true.
There is no need to inoculate against viral diseases.
It's not allowed to eat at the workbench.
There should be a program of staff training.
Floors may be covered with any material, e. g. a carpet.
There needs to be an adequate water supply.
Safety equipment and barrier clothing must be supplied to staff.
If you wish, you may decontaminate and disinfect impressions and jobs.
Everything can be heat sterilized.
Workbenches can be made of wood.
Separate areas for staff changing rooms should be available.
You may have lunch in your changing room.
There is no need in natural light, you may use lamps instead.
III. Arrange the following words and word-combinations in antonymic pairs.
Disinfected; into; natural; constant; to encourage; safe; infection free; contaminated; sufficient; wet; adequate; hard; smooth; easy; special; necessary; a number of.
Out of; ordinary; dangerous; dry; soft; few; intermittent; to discourage; infectious; difficult; rough; decontaminated; insufficient; unnecessary; artificial; infected; inadequate.
IV. Fill in the gaps with the words from the brackets.
Silicosis has been diagnosed and confirmed in dental laboratory _______. One individual developed the ______ after only six years of exposure. Silicosis is a disabling and incurable lung disease. Silicosis is caused by _______ in fine dust containing crystalline silica (кристалічний діоксид кремнію). Once in the lungs, this ____ causes damage that stops the body from using _____ properly. Breathing in dust containing ____________ has been linked to other diseases such as tuberculosis, kidney disease, and __________. Silicosis begins with few, if any, symptoms. Once present, these symptoms can include shortness of breath, severe cough, wheezing, and ____ tightness. Silicosis can get worse even after exposure has stopped. Dental lab _____ that contain silica include sand, investment materials, porcelain, shop dust. Dust exposure should be minimized through the use of local _______ systems. The worker should wear a ________ when other control methods are missing or do not work. Wet wiping and special vacuuming are recommended. Dry sweeping, dry dusting, use of compressed air, and use of ordinary vacuum cleaners should be avoided because they reintroduce the dust into the _______.
(Respirator, oxygen, chest, breathing, air, workers, dust, lung cancer, ventilation, disease, crystalline silica, materials)