Journal of Oral Science Research ›› 2022, Vol. 38 ›› Issue (7): 647-649.DOI: 10.13701/j.cnki.kqyxyj.2022.07.013

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Demineralization and Remineralization of Deciduous Teeth in Simulated Oral Environment

GAO Li1*, ZHANG Hui1, WANG Rui1, TAO Huiqian2, LIU Ling1, JIANG Wenjing1, WANG Mengyao1, LI Linlin1, YAN Bo1   

  1. 1. Department of Stomatology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University College of Oral Medicine, Zhengzhou 450000, China;
    2. The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Hangzhou 310000, China
  • Received:2022-01-06 Online:2022-07-28 Published:2022-07-22

Abstract: Objective: To study demineralization and remineralization of deciduous teeth in a flowing device simulating oral environment. Methods: Forty enamel specimens were collected and randomly divided into four groups: Watson soda group, fresh orange group, Coca-Cola group, and artificial saliva group (control group). In each group, five specimens were fluorinated and another five were un-fluorinated. Dental demineralization and remineralization were performed by a flowing device. The surface structure of the enamel was observed by scanning electron microscopy (SEM). Results: Under electron microscope, the degree of mineral dissolution on the enamel surface was increased when the beverage pH decreased gradually. After fluoriding, demineralization was improved and deposits could be seen. Conclusion: The experiment successfully showed the demineralization of deciduous enamels by acidic beverage and the remineralization by Duraphat using a dynamic flowing device, which had ideal practical significance.

Key words: simulation, oral dynamic environment, velocity controlling device, demineralization, remineralization