Nucleic acid testing is familiar to everyone. When an epidemic occurs suddenly in a certain area, local residents should cooperate with the epidemic prevention and control to do nucleic acid testing, and everyone will be concerned about the correct process of nucleic acid testing to ensure the accuracy of the test results. So can I brush my teeth before nucleic acid testing? Is it accurate to do nucleic acid detection without brushing your teeth?

First of all, brushing your teeth before nucleic acid detection will not affect the final result of nucleic acid detection. Nucleic acid detection only needs to collect nasopharyngeal secretions, so the oral environment will not affect the results of virus detection. However, if the tester drinks alcohol before the test, the test results may be biased, so you don't have to brush your teeth before the nucleic acid test, but don't drink too much.

At present, nucleic acid detection only collects sputum from the deep throat, and then judges whether the tester has COVID-19's disease according to the gene sequence of the sputum. Bacteria such as oral bacteria are not within the detection range of nucleic acid sampling, so brushing your teeth or not will not affect the detection results. Brushing teeth can only effectively clean the bacteria on the tooth surface, and the odor in the mouth will be less after brushing teeth, but it will not affect the gene sequencing and the final judgment result.

In a word, everyone can choose whether to brush their teeth before the exam, which will not affect the report results in the end.