Tooth decay

WRITING TASK 1: Y ou should spend about 20 minutes on this task. Eating sweet foods produces acid in the mouth which can cause tooth decay. ( High acid levels are measured low pH values). Decrible the information below and discuss the implication for dental health.

2p truongbao 27-07-2009 1840 518   Download

You should spend about 20 minutes on this task. Eating sweet foods produces acid in the mouth, which can cause tooth decay. (High acid levels are measured by low pH values) Describe the information below and discuss the implications for dental

2p anhheomap 13-12-2010 48 10   Download

Tham khảo sách 'encyclopedia of diseases and disorders_1', y tế - sức khoẻ, y học thường thức phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

0p crius75 04-01-2013 31 10   Download

The Encyclopedia of Diseases and Disorders provides authoritative information on a wide variety of diseases and health disorders. Although the focus in planning this collection of articles was on subjects of interest to young readers, the information provided here is valuable to users of any age. More than two hundred articles are categorized in three major areas of interest: infections, noninfectious diseases, and mental disorders.

0p crius75 04-01-2013 28 9   Download

A final reason to believe a connection between pollution and asthma might exist is that studies with more convincing empirical designs have found consistent effects of pollution on children’s health. Chay and Greenstone (2001) use declines in pollution that resulted from the 1980-82 recession and find a strong link between total suspended particles and infant mortality. Since most infant mortality is due to respiratory failure, it is reasonable to suspect that pollution could be related to other respiratory illnesses, such as asthma.

46p can_thai 12-12-2012 30 1   Download

Dental problems such as caries, erosion, epulis, periodontal infection, loose teeth, and ill-fitting crowns, bridges, and dentures (prostheses) may have special significance during pregnancy (5;8;9;19;2325). Tooth decay is the result of repeated acid attacks on the tooth enamel. Any increase in tooth decay during pregnancy may be due to changes in diet and oral hygiene. Nausea and vomiting in pregnancy can cause extensive erosion. Pregnancy gingivitis is present in over 30 percent of pregnant women. At the time of labor and delivery, dislodged teeth or prostheses could cause complications....

59p can_thai 11-12-2012 11 0   Download