In vitro assessment of erosive effects of some common soft drinks on dental hard tissues

Balkan Journal of Dental Medicine

article

Bitri Enea¹  Petcu Lucian²  Mocanu Gabriela³  Balaban Doina Paula⁴ 

[1] University "OVIDIUS", Faculty of Dental Medicine, Constanta, Romania + Private Dental Practice;University "OVIDIUS", Faculty of Dental Medicine, Department of Biophysics & Biostatistics;University "OVIDIUS", Faculty of Dental Medicine, Department of Endodontics, Dental Practice;University "OVIDIUS", Faculty of Dental Medicine, Department of Biochemistry

关键词: dental erosion;    soft drinks;    pH;    titratable acidity;    weight loss;    microhardness;    differences;   

DOI  :  10.2478/bjdm-2019-0024

学科分类：社会科学、人文和艺术（综合）

来源: Walter de Gruyter GmbH

【 摘 要 】

Background/Aim: The chemical nature of soft drinks is acidic, so they possess the capacity to cause hard tissue erosion. The aim of this study is to assess the potentially erosive effect linked to pH and titratable acidity of some common soft drinks on dental hard tissues in prolonged time exposure. Material and Methods: Seven types of soft drinks in Romanian market were selected for this study. The pH and Titratable acidity were determined. Twenty one human dental hard tissue specimens were immersed in 5 ml solution each for 336h. Every 48h weight loss was determined for each specimen and after 336h volume changes were calculated. Enamel microhardness was determined using a Microhardness Tester model HV-1000 and compared to normal enamel microhardness. Results: The pH values of beverages ranged from 2.37 to 3.1, showing no significant differences. All specimens presented color and surface texture modifications, weight loss and volume reduction. There were found significant differences between the mean values of weight loss and enamel microhardness of each type of specimens and type of beverages tested. The most representative findings were achieved by indentations done in specific zones on Sprite® immersed specimen. This result suggest that microhardness near the eroded surface was significant lower than in other zones. Conclusions: Data obtained have shown that all the soft drinks tested had an erosive effect, causing dental hard tissue dissolution. For prolonged time exposure titratable acidity may be a major predictor for erosive potential. Dental erosion may affect different levels of enamel causing decreased enamel microhardness.

【 授权许可】

CC BY