Is there a link between fluoridated water and osteosarcoma?

Article Abstract:

To determine whether a connection exists between osteosarcoma (a rare malignancy of bone) and water fluoridation, a study of osteosarcoma patients from two hospitals (one in Iowa and one in Nebraska) was carried out. Twenty-two patients with osteosarcoma (cases) and 22 patients at the same hospitals of similar age, sex, and county of residence (controls) reported the addresses of all previous residences, the years lived at each address, and their past use of bottled water. Subjects also provided samples of the well or municipal water consumed at each address. From these data, a lifetime average fluoride exposure index was calculated for each subject and was used to evaluate whether cases had experienced greater exposure to fluoride than controls. Low levels of exposure were defined as an average lifetime exposure of 0.7 parts per million (ppm) or less; high levels were higher than 0.7 ppm. None of the three statistical approaches to analyzing the data showed an association between fluoride exposure in residential water and osteosarcoma. It is possible, however, that exposure reduces the risk of this rare tumor. The findings solidly support the continued fluoridation of community water supplies. (Consumer Summary produced by Reliance Medical Information, Inc.)

Risk factors, Water, Water fluoridation, Osteosarcoma

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The impact of edentulousness on food and nutrient intake

Article Abstract:

People who have lost some or all of their teeth may tend to eat a less healthy diet than those with most of their natural teeth intact. Researchers evaluated the diets of 49,501 health professionals aged 40 to 80 years who had from 0 (1.5%) to 25 or more (89%) of their natural teeth. They re-evaluated these participants four years later for effects on diet with any further tooth loss. Participants with no natural teeth ate a diet higher in fat and calories and ate fewer high-fiber foods. Participants with more teeth were more likely to frequently eat food items that are difficult to chew such as pears, apples, and carrots. There was no significant difference in the nutrient and vitamin content of the participants' diets. Participants who lost five or more teeth during the four-year study period reported eating fewer fruits and vegetables, particularly ones difficult to chew, than those who did not lose any teeth during this time period.

Health aspects, Evaluation, Food habits, Tooth loss

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Patients' expectations for oral health care in the 21st century

Article Abstract:

Many dental patients will have greater expectations in the future and technological advances will allow dentists to fulfill those obligations. Insurers will also demand evidence that dental treatments will prevent further disease.

Forecasts and trends, Dentistry

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