Authors

HAMID REZA MOZAFFARI*, ROOHOLLAH SHARIFI**, SEPIDEH KARIMPOUR***, FATEMEH REZAEI*, SOHILA NANKALIE****, ASAD VAISI RAYGANI*****

Departments

* Department of Oral Medicine, School of Dentistry, Kermanshah University of Medical Sciences, Kermanshah, Iran - **Department of Endodontics, School of Dentistry, Kermanshah University of Medical Sciences, Kermanshah, Iran - ***School of Dentistry, Kermanshah University of Medical Sciences, Kermanshah, Iran - ****Department of Gynecologist and Obstetrician, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran - *****Department of Biochemistry, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran

Abstract

Background: Changes in sense of taste in pregnancy may have effects on nutritional status of pregnant women and consequently on maternal and fetal health.

Objective: The aim of this study was to evaluate changes in gustatory function during pregnancy.

Materials and methods: This cross sectional descriptive study, was conducted on pregnant and non-pregnant women admitted to the maternity ward of governmental hospitals of Kermanshah University of Medical Sciences, Iran in 2015.In this study 264 healthy women aged 20-30 years assigned into four groups (n=66): FT group - first trimester of pregnancy, ST group - second trimester of pregnancy, TT group - third trimester of pregnancy and Control nol non-pregnant. The detection and recognition thresholds of taste were assessed using serial concentrations of sucrose, sodium chloride, quinine hydrochloride and citric acid solutions for sense of sweet, salty, bitter and sour, respectively. Data were analyzed by SPSS software using ANOVA, Mann-Whitney and chi-square tests. (P<0.05)

Results: Sweet detection threshold was ranked in a decreasing order as control, first trimester, second trimester, and third trimester (P=0.024). There was a significant difference in sweet detection threshold only between control and TT group (P=0.002). There were not significant differences among four groups in salty (P=0.757), bitter (P=0.637), and sour (P=0.072) detection thresholds. Frequency of incorrect recognition threshold was 4.5% in non-pregnant women and 12.6% in pregnant women (P=0.065)

Conclusion: This study revealed that detection threshold of sweet taste was reduced with initiation and progression of pregnancy.

Keywords

Pregnancy, Taste threshold, gustatory perception.