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CC BY-NC-ND 4.0 · European Journal of General Dentistry 2021; 10(01): 025-029
DOI: 10.1055/s-0041-1732771
Original Article

Comparison of Salivary Alpha-Amylase, Sialic Acid, and pH in Pregnant and Nonpregnant Subjects

Masoomeh Shirzaiy
1   Oral and Dental Diseases Research Center, Zahedan University of Medical Science, Zahedan, Iran
,
Zohreh Dalirsani
2   Oral and Maxillofacial Diseases Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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Abstract

Objectives During pregnancy, systemic physiological alterations lead to some changes in the oral cavity, which could prepare the mouth environment for oral and dental problems. This study was aimed to investigate salivary α-amylase, sialic acid levels, and pH levels in pregnant and nonpregnant females.

Materials and Methods In this analytical, case–control study, unstimulated saliva samples were collected with spiting method from 35 pregnant women (case group) and 35 nonpregnant women (control group) and transferred to the laboratory to assess salivary α-amylase, sialic acid, and pH levels. Data were analyzed by SPSS (version: 19) software through statistical methods of independent t-test and analysis of variance.

Results The mean sialic acid levels were 2.285 ± 1.230 mg/dL in pregnant and 2.744 ± 1.326 in nonpregnant women without any significant difference (p = 0.138). The mean salivary α-amylase concentrations were 2.461 ± 1.869 U/L and 2.439 ± 2.058 U/L, respectively, in pregnant and nonpregnant women, with no significant difference (p = 0.963).

The mean salivary pH in nonpregnant women was significantly more than that in pregnant women (7.845 ± 0.430 and 6.868 ± 0.413, respectively) (p < 0.001). Also, the mean salivary pH levels in pregnant women were 7.474 ± 0.420 in the first trimester, 6.868 ± 0.413 in the second trimester, and 6.568 ± 0.387 in the third trimester, which were significantly different (p < 0.001).

Conclusion Salivary sialic acid and α-amylase levels among pregnant women were no different from those of other subjects. During pregnancy, the salivary pH significantly reduced, and the mean salivary pH during pregnancy had a decreasing trend from the first trimester to the third trimester.

Keywords

pregnancy - saliva - sialic acid - α-amylase, alpha-amylases - pH


Publication History

Article published online:
11 August 2021

© 2021. European Journal of General Dentistry. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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