1.He seems to know everyone here.2. Until the XXth century,cardiovascular disease was considered not to be a seriousproblem.3. Nearly a quarter of fatal attack victimswere reported to have been below age 65,4. Bacteria which cause gumdisease was found by researchers to be able to travel through the bloodstream.5. Patientswith gum disease are likely to suffer from narrowing of thearteries more often.6. that refined carbohydrates are believed by many dermatologiststo trigger inflammation in the skin.7. that thenumber of diabetics is supposed by the WHO experts to double by 2030,8. The firstbook is said to have been devoted entirely to dentistry appeared in the XVIth century.9. Ancient Romans are known to have been able to make false teeth and even removabledentures from ivory.10. The hardness of porcelain is considered to be very high.