Task 1. Learn the following words and word combinations

acid	['æsɪd]	кислота
appearance	[ə'pɪər(ə)ns]	внешность
caries=tooth decay	['kɛəri:z][tu:θ][dɪ'keɪ]	кариес
untreated	[ʌn'tri:tɪd]	не вылеченный
resistant to	[rɪ'zɪst(ə)nt]	резистентный; устойчивый; невосприимчивый
cavity	['kævətɪ]	полость, пазуха
plaque	[plɑːk]	зубной камень, налёт
dental floss	['dent(ə)l][flɔs]	зубная нить
enamel	[ɪ'næm(ə)l]	эмаль
fluoride	[flʊərʌɪd]	фторид
filling	['fɪlɪŋ]	пломба (в зубе)
hygiene	['haɪʤi:n]	гигиена
inflammation	[ֽɪnflə'meɪʃ(ə)n]	воспаление
thrush of mouth	[θrʌʃ][əv] [mauθ]	кандидозный стоматит
oral diseases	['ɔːr(ə)l][dɪ'zi:zəz]	заболевания полости рта
periodontal disease	[pɛrɪədɒntəl] [dɪ'zi:z]	заболевание парадонта
periodontitis	[pɛrɪədɒntʌɪtɪs]	периодонтит

Task 2. Find the following words and word-combinations in the text, reproduce the context they are used in and translate it into Russian.

1. oral health,

2. untreated cavities,

3. proper oral hygiene,

4. to keep the teeth till old age,

5. a major risk factor,

6. to brush teeth,

7. dental floss,

8. contribute to healthy gum tissue,

9. fluoridated water,

10. dental caries,

11. to be filled in with paste,

12. gum disease,

13. leading to inflammation,

14. an antifungal prescription,

15. a way to prevent dental diseases.

Task 3. Answer the questions:

1. Why is good oral health important?

2. What serious conditions of health can cavities and gum diseases influence?

3. How can we define a proper oral hygiene?

4. What should people do to practice proper oral hygiene?

5. Can you name bad habits being risk factors for oral diseases?

6. What causes dental caries?

7. Which sings are the early warnings of periodontitis?

8. What is oral thrush caused by?

9. What is the main reason of oral thrush?

10. What is the best way to prevent dental diseases