A: Periodontal disease Dental Tips: Gingivitis has now become a common oral disease for mothers-to-be, so mothers-to-be should beware of the “signals” of gingivitis, when the gums are puffy, brittle and soft; the gingival papillae between the teeth are more pronounced, purple-red protrusions, and bleeding when gently touched, and other symptoms to seek medical attention early. Gingivitis cannot heal on its own, and the mother-to-be must not take a chance and so on to avoid the invasion of bacteria in the mouth to other parts of the body. Two: Tooth decay The change in eating habits and irregular diet during pregnancy, as well as the negligence of oral care, can easily make the mother-to-be neglect her personal oral hygiene and produce tooth decay. Once acute pulpitis or apical inflammation breaks out, it will not only bring unbearable pain to the mother-to-be, but also adversely affect the baby if medication is not taken carefully. Tooth Care Tips: Curing tooth decay before pregnancy is good for both yourself and your baby. Third: Obstructed wisdom teeth Obstructed wisdom teeth are the last molars in the mouth that cannot fully erupt due to the obstruction of the jawbone and other teeth, causing part of the tooth to be covered by the gums. It is most common in the third molar of the lower jaw. There is a deep gap between the body of the wisdom tooth and the gum, which can easily accumulate food debris, leading to bacterial growth and reproduction and directly causing acute and chronic disease, which is commonly referred to as wisdom tooth pericoronitis. The wisdom teeth erupt after the age of 18, and wisdom tooth pericoronitis is most likely to occur between the ages of 20 and 35, which is when women of childbearing age choose to become pregnant, so to prevent the occurrence of this disease, the wisdom teeth should be removed from the mouth before pregnancy.