In pregnant women, gums are particularly prone to dental inflammation due to the sudden change in hormonal balance (estrogen, progesterone). If food residues accumulated on the teeth are not completely removed, simple gingivitis, called gingivitis, develops. The gums become swollen, red and bleeding. Preventing this can be possible by brushing and flossing effectively. Benign gum tumors also develop during pregnancy and go away spontaneously at the end of pregnancy. The sensitivity rate increases. This can also be prevented with good care. However, brushing immediately after vomiting is not preferred because of its maximum acidity. Because the teeth can be purified. Therefore, it is more appropriate to rinse mouth immediately after vomiting and to brush teeth after 20 - 30 minutes. If brushing increases nausea in pregnant women, it is still beneficial to rinse the mouth with at least plenty of water. But this is not true. Baby calcium comes from the food consumed first, then from the bones of the mother. Caries during pregnancy are caused by inadequate oral care and other factors. The first 3 months of pregnancy are the stages in which the formation of the baby begins and occurs quickly. During this period, it is necessary to avoid having dental applications unless required. Swelling, redness, bleeding in the gums increase, dental hygiene and oral hygiene education is important in this period. All applications, including x-ray and tooth extraction, can be performed in the period of 3 to 6 months. Any problems that can be neglected in this period may cause premature birth with pain. In case of problems that may occur in the first 3 months, more temporary treatments are applied and permanent treatments are left to the period between 3-6 months or after pregnancy. By interviewing the obstetrician of the patient, factors such as miscarriage, premature birth risk, excessive fear and panic can be removed and teeth can be extracted, filling can be treated at any period. Because the stress of the pain can be more harmful to the baby. With the decrease in the flow of saliva during pregnancy, the gingival effect of the already sensitive gums may also become worse. Therefore, the plaque formed in the mouth should be removed very well and the washing effect of the decreasing saliva should be prevented by good brushing, flossing and flushing with plenty of water. If necessary, the X-ray can also be taken with a lead apron. Resistance during pregnancy, balanced nutrition, being healthy, avoiding drugs are the most important factors for the development of the baby.