Salivary Iron (Fe) Ion Levels, Serum Markers of Anemia and Caries Activity in Pregnant Women / Níveis de íon ferro (Fe) salivar, marcadores séricos de anemia, e atividade de cárie em mulheres grávidas
Costa, Elisa Miranda; Azevedo, Juliana Aires Paiva de; Martins, Rafiza Félix Marão; Rodrigues, Vandilson Pereira; Alves, Cláudia Maria Coêlho; Ribeiro, Cecília Cláudia Costa; Thomaz, Erika Bárbara Abreu Fonseca.
Rev. bras. ginecol. obstet
; 39(3): 94-101, Mar. 2017. tab
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| LILACS | ID: biblio-843927
Abstract Introduction Anemia is a very frequent event among pregnant women. There are evidences of differences in the incidence of dental caries between pregnant and nonpregnant women, but the relationship between salivary iron (Fe) and serummarkers of anemia and caries development has not been investigated. Objective To evaluate the correlation between salivary (Fe) and serum iron (Fe, ferritin and hemoglobin) parameters in pregnant women with the development of dental caries. Methods A prospective cohort was conducted with 59 women. The outcome of interest was represented by new dental caries lesions during pregnancy, using the Nyvad criteria. Pregnant women were evaluated at three clinical times up to the 16th week of gestational age (GA) (T1), in the last trimester of pregnancy (T2), and postpartum (T3), at the Mother and Child Unit ofUniversityHospital of the Universidade Federal doMaranhão.A stimulated saliva sample was collected for biochemical analysis of salivary Fe, and a blood sample was collected early in the morning. The correlation between salivary and serum Fe was evaluated through the Pearson correlation test. Analysis of variance (ANOVA) and Kruskal-Wallis were used to compare the means of anemia parameters at different times. The Student's t and Mann-Whitney tests were used to compare the anemia parameters between the groups of pregnant women (with and without new caries lesions). Results SerumFe concentrationswere higher in the first trimester of pregnancy and lower after delivery (p = 0.036). It was also observed that the ferritin concentrations were higher in the first trimester and lower at the end of gestation (p = 0.011). Therewas no association between the expositions of salivary iron and anemia, and the development of dental caries. There was a positive correlation between serum Fe in T1 and salivary Fe in T2 (p < 0.05). Conclusion The serummarkers of anemiaweremore prevalent in the last trimester of pregnancy.
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