cavity

简明释义

英[ˈkævəti]美[ˈkævəti]

n. 洞，腔；(牙齿的) 龋洞

复 数 c a v i t i e s

英英释义

单词用法

同义词

反义词

例句

1.The first digital designs of the bones surrounding the sinus cavity actually bore a striking resemblance to an uninjured human skull.

窦腔周围骨骼的第一个数字设计实际上与未受伤的人类头骨惊人地相似。

2.Pooling in the pelvic cavity. Which means her heart was stillpumping. She was still alive when this . . . procedure was done.

骨盆腔有血液淤积，说明当时她的心脏还在跳动。整个过程中，她都还一直活着。

3.Once ingested by a caterpillar, the protein globule dissolves, releasing thousands of viruses, or virions, that after about two weeks multiply enough to fill the entire body cavity.

一旦被毛虫摄入，蛋白质小球就会溶解，释放出数以千计的病毒或病毒粒子，大约两周后这些病毒就会大量繁殖，足以填满整个体腔。

4.In contrast to cavity QED systems, the researchers can custom tailor the circuitry in many areas.

与腔QED系统相比，研究人员可以在许多领域定制电路。

5.To read out the answer, DiCarlo used a microwave tone at the same frequency as the cavity in the system.

为了输出答案，DiCarlo使用了微波音调，其频率和系统的空穴频率一致。

6.In the nose, cilia help to drain mucus from the nasal cavity down to the throat.

比方说鼻子，纤毛可以帮助粘液从鼻腔流到喉咙。

7.What is most noticeable is this cavity, this fluid-filled cavity that begins to develop.

最明显的是这个腔，这个充满液体的腔开始发育。

8.The polynyas suggest that the warm water exits the cavity beneath the glacier in three locations where the sea ice has melted.

这些个冰穴说明，有三处暖流从冰川下的凹陷处升上来导致海冰融化了。

9.So if you're snacking on candy several times a day instead of just once, your teeth are exposed to more cavity-causing acid.

所以，如果你少食多餐的吃甜食而不是一次吃完，你的牙齿就会被酸腐蚀的更久。

10.The dentist found a small cavity in my tooth that needs to be filled.

牙医发现我牙齿里有一个小龋洞，需要填补。

11.After the storm, we discovered a cavity in the roof that allowed water to leak in.

暴风雨过后，我们发现屋顶有一个空洞，让水漏了进来。

12.The archaeologists uncovered a cavity in the ancient wall, revealing hidden artifacts.

考古学家在古老的墙壁中发现了一个空腔，揭示了隐藏的文物。

13.He felt a sharp pain in his mouth and realized it was due to a cavity in one of his molars.

他感到嘴里一阵剧痛，意识到是由于他的一颗磨牙有一个龋洞。

14.The doctor explained that the cavity in the bone could lead to serious health issues if not treated.

医生解释说，如果不治疗，骨头中的空腔可能会导致严重的健康问题。

作文

Cavities are one of the most common dental problems faced by people of all ages. A cavity">cavity (蛀洞) is essentially a hole in a tooth caused by decay, which occurs when bacteria in the mouth produce acids that erode the enamel, the outer layer of the tooth. This process can lead to significant discomfort and even more severe health issues if left untreated. Understanding how cavities form and how to prevent them is crucial for maintaining good oral health. The formation of a cavity">cavity (蛀洞) begins with the accumulation of plaque, a sticky film of bacteria that forms on teeth. When we consume sugary or starchy foods, the bacteria in plaque feed on these carbohydrates and produce acids as a byproduct. Over time, these acids can weaken the enamel, leading to demineralization. If this process continues without intervention, a cavity">cavity (蛀洞) will eventually develop. Many people may not realize they have a cavity">cavity (蛀洞) until they experience pain or sensitivity in the affected tooth. This is why regular dental check-ups are so important. Dentists can identify early signs of decay before a cavity">cavity (蛀洞) becomes problematic. They often use X-rays to detect hidden cavities that may not be visible during a routine examination. Prevention is key when it comes to avoiding cavity">cavities (蛀洞). Good oral hygiene practices, such as brushing twice a day with fluoride toothpaste and flossing daily, can significantly reduce the risk of developing cavities. Fluoride helps to remineralize the enamel, making it more resistant to acid attacks. Additionally, reducing the intake of sugary snacks and beverages can help limit the amount of acid produced by bacteria in the mouth. Another effective preventive measure is the use of dental sealants. These are thin coatings applied to the chewing surfaces of back teeth, where cavities are most likely to form. Sealants provide a protective barrier against food particles and bacteria, further lowering the risk of decay and cavity">cavities (蛀洞). If a cavity">cavity (蛀洞) does develop, treatment options vary depending on the severity of the decay. For small cavities, a dentist may simply remove the decayed portion of the tooth and fill it with a dental material. However, if the decay has progressed significantly and affected the inner pulp of the tooth, a root canal may be necessary to save the tooth. In extreme cases, extraction may be the only option. In conclusion, understanding what a cavity">cavity (蛀洞) is and how it forms is essential for everyone. By practicing good oral hygiene and visiting the dentist regularly, individuals can greatly reduce their risk of developing cavities. Remember, prevention is always better than cure, and taking care of your teeth today will pay off in the long run. Maintaining healthy teeth not only contributes to a beautiful smile but also plays a vital role in overall health and well-being.

蛀洞是各个年龄段的人们面临的最常见的牙科问题之一。cavity">蛀洞（cavity）本质上是由于腐烂而导致的牙齿上的一个孔，当口腔中的细菌产生酸性物质侵蚀牙齿的外层——牙釉质时，就会发生这种情况。如果不加以治疗，这一过程可能导致显著的不适，甚至更严重的健康问题。了解蛀洞的形成和预防方法对维护良好的口腔健康至关重要。 cavity">蛀洞（cavity）的形成始于牙菌斑的积累，牙菌斑是一种粘稠的细菌膜，形成在牙齿上。当我们摄入含糖或淀粉的食物时，牙菌斑中的细菌会以这些碳水化合物为食，并作为副产品产生酸。随着时间的推移，这些酸会削弱牙釉质，导致去矿化。如果这一过程持续而没有干预，cavity">蛀洞（cavity）最终会发展出来。 许多人可能不知道自己有一个cavity">蛀洞（cavity），直到他们在受影响的牙齿上感到疼痛或敏感。这就是定期牙科检查如此重要的原因。牙医可以在蛀洞变得麻烦之前识别出早期的腐烂迹象。他们通常使用X光来检测在常规检查中可能看不见的隐蔽蛀洞。 预防是避免cavity">蛀洞（cavity）的关键。良好的口腔卫生习惯，例如每天刷牙两次和每天使用牙线，可以显著降低蛀洞的风险。氟化物有助于再矿化牙釉质，使其对酸性攻击更加抵抗。此外，减少糖果和含糖饮料的摄入可以帮助限制口腔中细菌产生的酸的数量。 另一种有效的预防措施是使用牙齿密封剂。这些是在后牙的咀嚼表面涂抹的薄涂层，后牙是最容易形成蛀洞的地方。密封剂提供了对食物颗粒和细菌的保护屏障，从而进一步降低腐烂和cavity">蛀洞（cavity）的风险。 如果一个cavity">蛀洞（cavity）确实发展出来，治疗选项取决于腐烂的严重程度。对于小蛀洞，牙医可能只需去除腐烂的部分并用牙科材料填充。然而，如果腐烂已经严重，并影响到牙齿内部的牙髓，可能需要进行根管治疗以挽救牙齿。在极端情况下，拔牙可能是唯一的选择。 总之，理解什么是cavity">蛀洞（cavity）及其形成方式对每个人都至关重要。通过养成良好的口腔卫生习惯和定期去看牙医，个人可以大大降低发展蛀洞的风险。记住，预防总比治疗要好，今天照顾好你的牙齿将在未来带来回报。保持健康的牙齿不仅有助于美丽的微笑，还在整体健康和福祉中发挥着重要作用。