The Hopewood House study goes to show that in institutionalized children at least, dental caries can be reduced significantly, even without the beneficial. The location of a caries study undertaken on children in New South Wales, Australia The biology of the children of Hopewood House, Bowral, New South Wales. major portion of their lives in a Home (Hopewood House) at Bowral, New South. Wales. . CARIES STUDY OF HOPEWOOD HOUSE , for the.
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For proper function even if there is no stresses are presenthopeewood cell of each organ tissue system and structure has a continuing demand for nutrients. To perform its specialized dynamic and inter related functions.
Nutrition — is defined as the science of food and its relationship to health. It deals with the part played by nutrients in the body growth, development and maintenance. Skulls of the Cro-Magnon people, who inhabited the earth 25, years ago, show evidence of tooth decay. There is an evidence of tooth decay found in 7 out of 32 skulls, in Neolithic man dating from the bronze age. But the skulls of Eskimos were free from caries.
Before and onwards studies showed no evidence of stuey caries in this region because of consumption of raw diet. But after volcanic housd inpeople living in this area moved to other areas which led to change in their dietary habits. The study conducted after showed they developed dental caries. At the same time dental caries among army personnel was increased due to increase in sugar consumption. More quantity of ready made food items were supplied to the army personnel during war wtudy.
Patients having intolerance to fructose avoid fructose and fructose containing dietary products. Because consumption of fructose causes nausea, vomiting, sweating, cramps, coma and even death. Hence studies have found that dental caries in these patients is very low. When the rats were fed through stomach tube in the presence of cariogenic bacteria in the oral cavity, no caries were found. Others sfudy have shown sugar in solution causes less caries than solid sugars.
Before starting the study houe were under normal diet, later were divided into different groups depending upon the type of food they consumed. The groups were 1. Sucrose solution group, 3. An 8 toffee group, 7. A 24 toffee group.
The study investigated the effects of consuming sugary foods of varying stickiness different oral retention times and at different times through out the day on the development of caries. The risk of caries is greater if the sugar is consumed in the form that will be retained on the surfaces of the teeth.
Consumption of sugar in-between meals was associated with a marked increase in dental caries. The increase in dental caries activity disappears on withdrawal of sugar-rich foods. Hopewood institution is an orphan house containing children from birth to 12 years of age. These subjects were on diet rich in milk products and vegetables.
The drinking water was having low amount of fluoride.
Their oral hygiene practices were poor. Their diet mainly consisted of whole wheat, soya beans, and nuts. Cheese, sugar and refined carbohydrates were totally excluded.
Observation was followed up to 13 years of age. When the children go out of this institution after study sthdy was over at the end of 13 years and at later stage when they were exposed to diet like any other child, containing all sugars.
The caries rate started increasing and the caries experience of children of Hopewood study was almost similar to state school children. Xylitol is a sweet hoyse not metabolized by plaque micro organisms.
In a 2 year study young adults were divided into 3 groups based own their own preferences. They consumed the entire dietary intake using these sugars extensively Sucrose group — hopewooe people, Fructose group — 38 people, and Xylitol group — 52 people.
After second year Caries had continued to increase in the Sucrose group but remained unchanged in Fructose group where as Xylitol produced almost no caries. Therefore – Fructose was less cariogenic than Sucrose Xylitol was non cariogenic or even anti cariogenic because of the number of reversal of early white spots lesions.
Dr Hidayathulla Shaikh
A typical response was observed, and these curves are referred to as Stephens curves. It has 3 main characteristics, A Under normal conditions PH of plaque is constant, B Following exposure to sugars pH drops very rapidly in few minutes to its lowest stkdy critical pH and at this pH tooth surface is at risk C Slowly after sometime minutes pH returns to its original values. The salivary buffers are jopewood ineffective once the pH drops to 5 and below.
This process initiates the process of dental caries, if the pH drops to 3 or 4 over hopesood period of time the surface layer of tooth is irreversibly lost. Frequent ingestion of sucrose has lot of influence in initiation and development of caries in newly erupted teeth compared to mature old teeth. Ex — saccharine, aspartame, cyclamate B Caloric sweeteners Nouse provide energy and are used in medicines, food products, sugar free chewing gums, toothpaste etc They are of 2 types Sugars — like fructose, glucose, lactose and sucrose.
Sugar alcohols — like sorbitol, lycasin, Xylitol, coupling sugar. My presentations Profile Feedback Log out.
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