This review analyzes the changes that occur during normal pregnancy and describes the main odontogenic infections, suggesting the actual best approach in dental management. Several studies support the hypothesis that periodontal disease is associated with preterm labour and other conditions complicating pregnancy, such as pre-eclampsia and fetal growth restriction. Appropriate dental care and prevention during pregnancy may reduce poor prenatal outcomes and eliminating risk factors. Dental examination before pregnancy is strongly suggested in order to act early on dental and periodontal diseases. Prevention means reducing the presence of bacterial plaque through professional hygiene sessions, education, and motivation to proper oral hygiene at home, education in proper nutrition, a balanced diet, and low intake of sugars. For these reasons, it is essential to have a more intense interdisciplinary collaboration between gynecologist and dentist in order to achieve an optimal women's health, during this particular time in their lives.