How to brush teeth with cavities

Written by Li Bao Hua

Dentistry

Updated on December 31, 2024

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Cavities are a disease caused by bacterial infection of the hard tissues of the teeth, belonging to a type of self-destructive and infectious disease, and cavities need to be treated in a timely manner. When brushing teeth with cavities, it is especially important to brush thoroughly. Fluoride toothpaste can be used to clean each surface of the teeth, including the occlusal, buccal, lingual, and the insides of the teeth. Sometimes it is difficult for the bristles to reach the inside of the teeth, in which case an interdental brush or dental floss can be used to clean these areas to prevent the occurrence of cavities inside the teeth. Besides brushing, it is also necessary to fill the teeth promptly, also known as dental filling.

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Written by Li Cui

Dentistry

1min 2sec

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How to treat a tooth that is half decayed?

When a patient has a cavity that has already damaged the dental tissues, causing severe damage to the dental tissues, the general advice for the patient is to go directly to a regular dental hospital for treatment. The best approach is generally to extract the tooth; extraction is the best option, but it should be done when the body is in good condition to remove the damaged tooth. Additionally, patients should pay attention to oral hygiene and can take some anti-inflammatory drugs orally to effectively control inflammation. Furthermore, during tooth extraction, it is crucial to pay attention to local hygiene, be mindful of food residue inside the mouth, eat and drink before the extraction, keep a relaxed mood, and follow the doctor's advice after extraction. Generally, do not eat for two hours after the surgery, do not brush your teeth or rinse your mouth within a day, avoid touching the wound, and manage your diet reasonably.

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Written by Wang Peng

Dentistry

43sec

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What should I do about bad breath caused by dental caries?

If a patient is suffering from dental caries that have already caused bad breath, the situation requires active treatment targeting the dental caries. Due to the ease with which food residue and bacteria can accumulate in cavities, this will cause an odor in the mouth. Initially, it is essential to clear out food debris, bacteria, and any decayed material from the cavity. If the cavity is shallow, it can be directly filled with light-cured resin material. After the cavity is filled, the patient's bad breath symptoms should be alleviated. However, if the cavity is deep, it should first be treated with a pulp-protecting base before filling. If the dental nerve is affected, causing pulpitis, root canal treatment must be conducted first.

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Written by Li Bao Hua

Dentistry

50sec

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What causes cavities in children?

There are many causes of dental cavities in children, with bacterial infection being a common one. During childhood, if teeth are not brushed promptly after eating, the amount of bacteria in the mouth increases. These bacteria then break down food, producing glucose or lactic acid, which leads to demineralization on the surface of the teeth, eventually causing cavities over time. Additionally, it might be related to the sleep patterns during childhood, as children have longer sleep durations. During sleep, the brain inhibits saliva production, which reduces its effectiveness in washing away food residue on the teeth, thereby making cavities more likely to develop. Furthermore, children's preference for sweets also contributes to the high incidence of cavities.

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Written by Li Bao Hua

Dentistry

48sec

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Will tooth decay recur after a filling?

Cavities are a type of chronic, progressive destructive disease caused by bacterial infection of the hard tissues of the teeth. Normally, a cavity should not recur after being filled, but each dental filling material has a certain degree of microleakage. If glass ionomer materials are used, the microleakage is somewhat larger, and after filling, there might be tiny gaps between the edge of the filling material and the tooth, where bacteria can continue to infect, also known as secondary caries, necessitating timely refilling of the tooth. If resin-based materials are used, the microleakage is relatively smaller, and the likelihood of recurrence after the filling is smaller.

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Written by Li Bao Hua

Dentistry

52sec

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Can tooth decay heal by itself?

Cavities are a type of dental hard tissue defect caused by bacterial infection, and represent a chronic, progressive, destructive disease. In the early stages of a cavity, if only the enamel layer is involved with simple demineralization of the tooth, then remineralization treatment can be conducted. This scenario is the only reversible one where the cavity can heal itself. If the cavity progresses to the dentin layer, then it cannot heal by itself and requires timely intervention by drilling to remove the decayed part and performing a filling treatment. If the infection is not controlled in time, bacteria can further cause the dental nerve to become purulent and necrotic, leading to symptoms of pulpitis or apical periodontitis. In such cases, timely root canal treatment is necessary.