“…It has been found that the etiology of periodontal disease during pregnancy is multicausal. Some studies mention that they are due to hormonal changes, 1 - 3 poor oral hygiene, 5 , 13 , 14 , 17 level of schooling, 5 , 12 belonging to an ethnic group, 5 , 13 maternal age, 7 , 9 , 10 socioeconomic factors, 7 , 12 periodontal bleeding, 9 and not attending a dental consultation. 16 , 18 Hormonal changes influence the reproduction of microorganisms associated with periodontopathies, such as Bacteroides intermedius during the second trimester; Porphyromonas gingivalis and Tannerella forsythia in the 12th week of gestation; Prevotella intermedia , Fusobacterium nucleatum and Aggregatibacter actinomycetemcomitans that have been found in the saliva of pregnant women.…”