Pregnant women’s emotions are not easy to control, and a good doctor-patient relationship can reduce their anxiety. If necessary, the obstetricians and gynecologists and internal medicine doctors can first consult the pregnant woman and the condition of the fetus, and then go to the dentist to see a better. The following are some of the dental questions often asked by expectant mothers, we are here to help you solve your doubts: 1, there are dental problems must be dealt with before pregnancy? Before you get pregnant, you need to establish a healthy oral environment – ask your dentist about proper brushing (use the Bechdel brushing method to avoid sawing horizontally), flossing to remove plaque adhesion, and regular dental cleanings. It is important to brush your teeth carefully and treat cavities in your mouth so that you will not be reluctant to go to the dentist when you are pregnant, thus delaying the treatment of cavities and increasing the chances of tooth damage after delivery. 2. Will X-rays taken by pregnant women during dental treatment cause harm to the fetus? Generally speaking, as long as the total exposure does not exceed 5 to 10 rads, there will be no congenital malformation. The dose of dental radiation is 0.004 rads for the whole mouth cranial film, and only 0.00001 rads for the whole mouth 14 teeth apical film, plus every time when irradiating the X-ray will use the lead suit to protect, it can almost completely protect the pregnant woman and the fetus from being exposed to radiation. Moreover, the dentist will only irradiate when necessary for treatment, so there is no need to worry about safety. 3. What should I do if I realize that I have cavities after I am pregnant? Can I see a dentist during pregnancy? Generally, simple scaling and filling can be treated during pregnancy, but if the pregnant woman belongs to the emotionally tense type, there is a risk of miscarriage in the first trimester; in the second trimester, she is more afraid of compressing the veins because of her supine position, and the way to prevent this is to take a rest when sitting up to avoid sudden standing up, which leads to dizziness (due to postural hypotension). By the middle of pregnancy, the pregnant woman’s condition is most stable and her stomach is not too big, so most of the dental treatments (such as scaling, dental fillings, root canal treatment, etc.) can be done at this stage. However, dental surgery (e.g. periodontal flap deep treatment, wisdom teeth extraction, root tip surgery) is recommended to be postponed until after delivery because of the longer surgery time and the emotional pressure on the pregnant woman. 4. Can pregnant women take medication for dental treatment? Will anesthesia drugs cause harm to the fetus? Antibiotics: Except for tetracycline, chloramphenicol and streptomycin, dental antibiotics are generally safe for pregnant women. Because infections may cause bacteremia or sepsis, which are more harmful to the fetus than antibiotics passing through the placenta, pregnant women will still be advised to take them if necessary. Painkillers: Commonly used painkillers, such as aspirin and pramipexole, have been deemed safe by obstetricians and gynecologists; narcotic painkillers (e.g., morphine) do not cause permanent harm to the fetus, but they can depress the central nervous system and, when used for a long period of time, can be addictive, although dentists will not prescribe them. Anesthetics: dental local anesthetics can be used safely as long as they are not overdosed. 5. Don’t brush your teeth during menstruation, just rinse your mouth, is this correct? This is a wrong concept and custom, because gargling can only rinse out large pieces of food debris in the mouth, but plaque attached to the surface of the teeth (including food debris, bacteria and their secretions) must be removed by brushing. If in the period of sitting in this period are not brushing, very quickly in two weeks will cause gingivitis, calculus will also form, plaque once calcified to form calculus, there is no way to remove by brushing, must use ultrasonic vibration power to remove calculus. 6. When is the best time for a pregnant woman to see a dentist? It is best for a woman to see a dentist before she is pregnant. Based on the comfort of pregnant women and the safety of dental treatment, treatment should be avoided at the beginning and end of pregnancy, and if there is any discomfort in the teeth, the dentist can be asked to do a temporary and less strenuous treatment. If you must have dental treatment, you can have it done in the middle of your pregnancy. If dental treatment is necessary, please relax and feel at ease as the dentist will weigh the necessity of the treatment and minimize the amount of x-ray exposure, unnecessary medication and the chance of infection. First trimester (1 to 3 months): Sometimes pregnant women are not aware of the early stages of pregnancy, and this is also the trimester when the vital organs of the fetus (arms and legs, cerebral spinal cord nervous system, teeth) are formed. If you take inappropriate medication at this time, or if you receive too large a dose of radiation, it may cause the threat of spontaneous abortion, and there is a possibility of forming a deformed child. Therefore, most dentists will only give emergency treatment at this time and will not do anything too drastic. Second trimester (4-6 months): Less invasive dental procedures can be done, and X-rays can be taken with proper protection (lead coat). Third trimester (7 to 9 months): This period is only suitable for emergency treatment, and it is important to avoid maintaining the head-down-on-foot position for too long, so as not to cause postural hypotension when suddenly sitting up. Breastfeeding: Recently, many experts have advocated breastfeeding, as breast milk is the best for a child’s health, but because many medications will be secreted through breast milk and ingested into the body by infants, it is important to inform your physician if you are breastfeeding. If you have to use medication, it is best to take the medication and breastfeeding more than 4 hours apart to reduce the dose of the medication in the breast milk, or even to sacrifice breastfeeding to avoid affecting the baby. Mother-to-be has a good teeth method: mother in pregnancy to take sufficient nutrition, vegetables, fruits, rice, fish, meat, eggs, dairy should be a balanced intake, in order to supply the fetus teeth need calcium, phosphorus, vitamins and so on. Calcium (e.g. milk, small fish, etc.) not only helps the fetus develop and build strong teeth, but also maintains the mother’s own health. It is also important to pay more attention to oral hygiene during pregnancy than usual. Dentists suggest that it is best to develop the habit of regular checkups before pregnancy. If you do not have a dental checkup before pregnancy, it is best to find a time for a dental checkup and scaling in mid-pregnancy, so as to avoid serious cavities and periodontal disease in the mouth, and then to seek treatment when more serious symptoms (such as those causing toothache or discomfort) occur, which will be even worse for the fetus.