Clinically, it is generally recommended to take 1-3 months after the x-ray before pregnancy. To understand the morphology of wisdom teeth and the relationship between wisdom teeth and surrounding tissues before wisdom teeth extraction, oral panoramic radiographs, also known as X-rays, are required. Although X-rays are harmful to human body, the radiation dose of oral panoramic film is very small, only about 25μSv, so there is no need to worry too much and it will not cause great harm to human body. If the oral panoramic film has been taken, it is usually clinically recommended to take 1-3 months after the film before pregnancy, or you can take good radiation protection measures and wear radiation-proof lead clothing when taking the film, which can effectively reduce or avoid the radiation of X-rays.