为什么感冒会引起牙疼？

感冒是一种常见的疾病，其主要症状包括喉咙痛、鼻塞、咳嗽和身体不适等。然而，有些人在感冒期间还会出现牙疼的情况，这让人不禁好奇：为什么感冒会导致牙疼呢？

科学研究表明，感冒与牙疼之间存在着一定的联系。首先，感冒通常会引发鼻窦炎，即鼻窦的感染和炎症。鼻窦位于颅骨中，靠近上颌骨和下颌骨，而上颌骨和下颌骨分别承载着上牙和下牙。当上颌骨或下颌骨发生炎症时，可能会传导到附近的牙齿，导致牙疼的感觉。

此外，感冒期间的鼻塞也会对牙齿产生影响。当我们感冒时，鼻腔内的血管会扩张，导致鼻黏膜充血肿胀。这种充血和肿胀会增加鼻腔内的压力，进而对上颌骨和下颌骨施加压力。如果牙齿的根部与上颌骨或下颌骨接近，那么这种额外的压力可能会导致牙疼。

此外，感冒期间我们常常会因为打喷嚏或咳嗽而用力。这些动作可能会导致上颌骨和下颌骨的震动，进而引起牙齿疼痛。特别是当我们感冒时，身体免疫系统会释放炎症介质来对抗病毒，这可能导致身体的疼痛感受增加，包括牙齿。

总结起来，感冒引发的牙疼与三个主要因素有关：鼻窦炎、鼻塞和用力动作。感冒中的鼻窦炎可能会导致附近牙齿的炎症和感染，鼻塞增加了牙齿所承受的压力，用力动作则可能导致牙齿的震动和疼痛感。因此，虽然牙疼并非感冒的典型症状，但确实存在一定的联系。

Why does a cold cause toothache?

A cold is a common illness that includes symptoms such as sore throat, nasal congestion, cough, and general discomfort. However, some people also experience toothache during a cold, which leads us to wonder: Why does a cold cause toothache?

Scientific research suggests that there is a connection between a cold and toothache. Firstly, a cold often triggers sinusitis, which is an infection and inflammation of the sinuses. The sinuses are located within the cranial bones, close to the maxilla and mandible, which carry the upper and lower teeth respectively. When there is inflammation in the maxilla or mandible, it can transmit to the neighboring teeth, causing toothache sensation.

In addition, nasal congestion during a cold can also affect the teeth. When we have a cold, the blood vessels in the nasal cavity dilate, leading to congestion and swelling of the nasal mucosa. This congestion and swelling increase the pressure inside the nasal cavity, putting additional pressure on the maxilla and mandible. If the roots of the teeth are close to the maxilla or mandible, this extra pressure can result in toothache.

Furthermore, during a cold, we often exert force when sneezing or coughing. These actions can cause vibrations in the maxilla and mandible, leading to toothache. Particularly when we have a cold, the body's immune system releases inflammatory mediators to fight against the virus, which can increase the body's perception of pain, including toothache.

In summary, toothache caused by a cold is related to three main factors: sinusitis, nasal congestion, and forceful actions. Sinusitis during a cold can lead to inflammation and infection in the nearby teeth, nasal congestion increases the pressure on the teeth, and forceful actions can cause tooth vibration and pain. Although toothache is not a typical symptom of a cold, there is indeed a certain connection between the two.