Tooth decay occurs when pH of mouth is below:a)5.5b)7.5c)8.5d)10.5Correct answer is option 'A'. Can you explain this answer?

Question

Tooth decay occurs when pH of mouth is below:&#8203;a)5.5b)7.5c)8.5d)10.5Correct answer is option 'A'. Can you explain this answer?

Answer

Tooth decay occurs when pH of mouth is below 5.5 .....

Answer

Tooth decay starts when the pH of teeth is less than 5.5acid rains occur when pH of rain water is less than 5.6

Answer

Due to eating more sweets and sugary things the particles of sugar will remain left in our mouth the bacteria present in our mouth causes the degradation   of these sugar particles to produce large amount of acid which result in decrease  of ph of mouth from 5.5 ultimately  it lead to tooth decay.Tooth decay starts when ph is lower than 5.5this is because the acid  attack the enamel of our teeth and corrode it.

Answer

Bcz after reaching the ph 5.5 .the medium of mouth is getting acidic which affects the teeth in high amount that s why decay occur

Answer

Answer is A

Answer

5.5

Answer

Tooth Decay and pH of the Mouth

Tooth decay, also known as dental caries or cavities, is a common oral health problem that occurs when the protective outer layer of the teeth, called the enamel, is damaged by acids produced by bacteria in the mouth. The pH level of the mouth plays a crucial role in the development of tooth decay.

Role of pH in Tooth Decay

The pH scale measures the acidity or alkalinity of a substance. It is a logarithmic scale ranging from 0 to 14, where a pH of 7 is considered neutral, values below 7 are acidic, and values above 7 are alkaline or basic. The pH of the mouth is influenced by various factors, including diet, saliva production, and oral hygiene practices.

Acidic Conditions and Tooth Decay

When the pH of the mouth drops below a certain level, it becomes acidic. This acidic environment is conducive to the growth and activity of acid-producing bacteria present in dental plaque. These bacteria feed on sugars and carbohydrates from the food we consume and produce acids as byproducts.

These acids can dissolve the minerals present in the tooth enamel, leading to demineralization and weakening of the tooth structure.

Over time, the repeated exposure to acids can cause small pits or cavities to form on the surface of the teeth.

If left untreated, the cavities can progress deeper into the tooth, eventually reaching the inner layers, such as the dentin and pulp, causing pain, infection, and even tooth loss.

pH Level for Tooth Decay

The pH level at which tooth decay starts to occur is typically considered to be 5.5 or below. At this acidic pH, the enamel begins to demineralize, making the teeth more susceptible to decay.

Preventing Tooth Decay

Maintaining a balanced pH level in the mouth is essential for preventing tooth decay. Some preventive measures include:

Brushing your teeth at least twice a day with fluoride toothpaste to remove plaque and strengthen the enamel.

Flossing daily to remove plaque and food particles from between the teeth and along the gumline.

Eating a healthy diet low in sugary and acidic foods and drinks.

Limiting snacking between meals to reduce the frequency of acid attacks on the teeth.

Using fluoride mouthwash or receiving professional fluoride treatments to enhance tooth remineralization.

Regular dental check-ups and professional cleanings to detect and treat any early signs of tooth decay.

By maintaining a pH level above 5.5 and adopting good oral hygiene practices, individuals can significantly reduce their risk of tooth decay and maintain optimal oral health.

Similar Class 10 Doubts

Study the given table and answer the following questions. It shows the pH value of the plaque (which collects around teeth) surrounding the teeth of a child over 3 hrs.The pH which leads to tooth decay?

Why does tooth decay start when pH of mouth is lower than 5.5.?

Assertion : If the pH inside the mouth decreases below5.5, the decay of tooth enamel begins.Reason : The bacteria present in the mouth degrades the sugar and left over food particles and produce acids that remain in the mouth after eating.

Why does tooth decay start when the pH of mouth is lower than 5.5?

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