tooth decay
Definition
Tooth decay is a disease that causes the breakdown of tooth enamel. Enamel is the hard outer layer of the tooth that protects it from decay.
Tooth decay is caused by bacteria that live in the mouth. These bacteria feed on sugar and other food particles, and they produce acids as a waste product. These acids attack the tooth enamel, causing it to break down.
Tooth decay can cause pain, sensitivity, and even tooth loss. It is important to brush your teeth twice a day and floss once a day to prevent tooth decay.
How can the word be used?
To prevent tooth decay, it is important to brush your teeth twice a day and floss once a day.
Different forms of the word
Noun:
the breakdown of teeth due to acids produced by bacteria.
Verb:
to cause tooth decay.
Etymology
The word "tooth decay" is a compound word, made up of the words "tooth" and "decay".
The word "tooth" comes from the Old English word "tōth", which means "tooth".
The word "decay" comes from the Old French word "decai", which means "to fall down".
The first recorded use of the word "tooth decay" in English was in the 14th century.
The word "tooth decay" is a Germanic word, and it is related to the German word "Zahnfäule" and the Dutch word "tandbederf".
Question
What can you do to reduce the chances of tooth decay?
AQA Science Exam Question and Answer
Question:
Explain the process of tooth decay and its underlying causes. Describe how certain factors contribute to the development of cavities and the deterioration of tooth enamel. Provide an example of preventive measures that can help reduce the risk of tooth decay.
Answer:
Tooth decay, also known as dental caries, is a common dental issue caused by the demineralisation of tooth enamel. It begins when bacteria in the mouth metabolise sugars and produce acids that weaken the enamel's mineral structure. Over time, these acids erode the enamel, leading to the formation of cavities or holes in the teeth.
Several factors contribute to tooth decay, including poor oral hygiene, frequent consumption of sugary and acidic foods, and a lack of fluoride. The accumulation of plaque, a sticky film of bacteria, accelerates the production of acids that attack the enamel. Without proper oral care, the ongoing demineralization process can progress and result in cavities.
For example, consistent consumption of sugary snacks and beverages can provide a constant source of fuel for bacteria, leading to increased acid production and enamel erosion. Additionally, inadequate brushing and flossing allow plaque to accumulate, promoting the growth of harmful bacteria.
Preventive measures play a critical role in reducing the risk of tooth decay. Maintaining good oral hygiene practices, including regular brushing and flossing, helps remove plaque and prevent the buildup of acids. Fluoride, found in toothpaste and water, strengthens enamel and enhances its resistance to acid attacks. Reducing sugar intake and visiting a dentist for routine check-ups and cleanings further contribute to preventing tooth decay and promoting overall dental health.