Protective effects of a zinc-hydroxyapatite toothpaste on enamel erosion: SEM study

Colombo, Marco and Beltrami, Riccardo and Rattalino, Davide and Mirando, Maria and Chiesa, Marco and Poggio, Claudio (2016) Protective effects of a zinc-hydroxyapatite toothpaste on enamel erosion: SEM study. Annali di Stomatologia, 7 (3). pp. 38-45. ISSN 1971-1441

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Aim. The aim of the present in vitro study was to evaluate the protective effects of a zinc-hydroxyapatite toothpaste against an erosive challenge produced by a soft drink (Coca-Cola) using Scanning Electron Microscopy (SEM). Methods. Forty specimens were assigned to 4 groups of 10 specimens each (group 1: no erosive challenge, no toothpaste treatment, group 2: erosive challenge, no toothpaste treatment, group 3: erosive challenge, fluoride toothpaste treatment, group 4: erosive challenge, zinc-hydroxyapatite toothpaste treatment). The surface of each specimen was imaged by SEM. A visual rating system was used to evaluate the condition of the enamel surface; results were analyzed by nonparametric statistical methods. Results. Statistically significant differences were found between the samples untreated and those immersed in Coca-Cola (group 1, 2); the highest grade of damage was found in group 2, while the lowest grade was recorded in the samples of group 4. Comparing the groups, the two analyzed toothpaste tended to protect in different extend. Conclusions. In this study treatment of erosively challenged enamel with Zn-Hap toothpaste showed a clear protective effect. This was greater than the effect observed for a normal fluoride toothpaste and confirmed the potential benefit the Zn-HAP technology can provide in protecting enamel from erosive acid challenges.

Item Type: Article
Uncontrolled Keywords: enamel erosion, fluoride, hydroxyapatite, SEM, surface analysis, toothpastes.
Subjects: 600 Tecnologia - Scienze applicate > 610 Medicina e salute (Classificare qui la tecnologia dei servizi medici) > 616 Malattie (classificare qui la Clinica medica, la medicina basata sull'evidenza, la Medicina interna, la Medicina sperimentale)
Depositing User: Rita Negrini
Date Deposited: 20 Mar 2020 19:44
Last Modified: 20 Mar 2020 19:44

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