Every time you eat or drink anything sugary, your teeth are under acid attack for up to one hour. This is because the sugar will react with the bacteria in plaque (the sticky coating on your teeth) and produce the harmful acids. So it is important to keep sugary foods only to mealtimes, limiting the amount of time your mouth is at risk.
Acidic foods and drinks can be just as harmful to your teeth. The acid erodes the enamel, exposing the dentine underneath. This can make the teeth sensitive and unsightly.
A diet that is rich in vitamins, minerals and fresh produce can help to prevent gum disease. Gum disease can lead to tooth loss and cause bad breath.
All sugars can cause decay. Sugar can come in many forms, for example: sucrose, fructose and glucose are just three types. These sugars can all damage your teeth.
Many processed foods have sugar in them and the higher up it appears in the list of ingredients, the more sugar there is in the product. Always read the list of ingredients on the labels when you are food shopping.
When you are reading the labels remember that ‘no added sugar’ does not necessarily mean that the product is sugar free. It simply means that no extra sugar has been added. These products may contain sugars such as those listed above, or the sugars may be listed as ‘carbohydrates’. Ask your dentist if you are unsure.
Acidic food and drinks can cause decay. Listed below are the ‘pH values’ of some food and drinks. The lower the pH number; the more acidic the product. Anything with a pH value lower than 5.5 may cause tooth erosion. ‘Alkalies’ have a high pH number and neutralise the acid effects of sugars. PH 7 is the middle figure between acid and alkali.
– mineral water (still) pH 7.6
– milk pH 6.9
– cheddar cheese pH 5.9
– lager pH 4.4
– orange juice pH 3.8
– grapefruit pH 3.3
– pickles pH 3.2
– cola pH 2.5
– red wine pH 2.5
– vinegar pH 2.0
It is better for your teeth and general health if you eat 3 meals a day instead of having 7 to 10 snack attacks. If you do need to snack between meals, choose foods that do not contain sugar. Fruit does contain acids, which can erode your teeth. However, this is only damaging to your teeth if you eat an unusually large amount. Try to limit dried fruit as it is high in sugar and can stick to the teeth.
If you do eat fruit as a snack, try to eat something alkaline such as cheese afterwards. Savoury snacks are better, such as:
The main point to remember is that it is not the amount of sugar you eat or drink, but how often you do it. Sweet foods are allowed, but it is important to keep them to mealtimes.
To help reduce tooth decay, cut down on how often you have sugary foods and drinks and try to sugar-free varieties confectionery and chewing gum containing Xylitol may help to reduce tooth decay.
Sugary foods can also contribute to a range of health problems including heart disease and being overweight.
Still water and milk are good choices. It is better for your teeth if you drink fruit juices at meal times. If you are drinking them between meals, try diluting them with water.
Diluted sugar-free squashes are the safest alternative to water and milk. If you make squash or cordial, be sure that the drink is diluted 1 part cordial to 10 parts water. Some soft drinks contain sweeteners, which are not suitable for young children – ask your dentist or health visitor if you are not sure.
Fizzy drinks can increase the risk of dental problems. The sugar can cause decay and the acid in both normal and diet drinks can dissolve the enamel on the teeth. The risk is higher when you have these drinks between meals.
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