Salivary pellicle modification with polyphenol-rich teas and natural extracts to improve protection against dental erosion.

Niemeyer, Samira Helena; Baumann, Tommy; Lussi, Adrian; Meyer-Lueckel, Hendrik; Scaramucci, Taís; Saads Carvalho, Thiago (2021). Salivary pellicle modification with polyphenol-rich teas and natural extracts to improve protection against dental erosion. Journal of dentistry, 105, p. 103567. Elsevier Science 10.1016/j.jdent.2020.103567

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OBJECTIVE

To investigate the modification of the salivary pellicle with different polyphenol-rich teas and natural extracts for the protection against dental erosion.

METHODS

We performed two experiments: one with teas (Green tea, Black tea, Peppermint tea, Rosehip tea, negative control [NC]) and other with natural extracts (Grape seed, Grapefruit seed, Cranberry, Propolis, NC), where NC was deionized water. A total of 150 enamel specimens were used (n = 15/group). Both experiments followed the same design, consisting of 5 cycles of: salivary pellicle formation (30 min, 37 °C), modification with the solutions (30 min, 25 °C), further salivary pellicle formation (60 min, 37 °C) and erosive challenge (1 min, 1% citric acid, pH 3.6). Relative surface microhardness (rSMH), relative surface reflection intensity (rSRI) and amount of calcium release (CaR) were evaluated. Data were analysed with Kruskal-Wallis and Wilcoxon rank sum tests with Bonferroni correction (α = 0.05).

RESULTS

Regarding teas, Black and Green teas showed the best protection against dental erosion, presenting higher rSMH and lower CaR than NC. Peppermint tea was not different to NC and Rosehip tea caused erosion, showing the highest CaR and greatest loss of SMH and SRI. Regarding natural extracts, Grape seed and Grapefruit seed extracts presented the best protective effect, with significantly higher rSMH and lower CaR. Cranberry caused significantly more demineralization; and Propolis did not differ from NC.

CONCLUSION

Green tea, Black tea, Grape seed extract and Grapefruit seed extract were able to modify the salivary pellicle and improve its protective effect against enamel erosion, but Rosehip tea and Cranberry extract caused erosion.

CLINICAL RELEVANCE

Some some bio-products, such as teas and natural extracts, improve the protective effect of the salivary pellicle against enamel erosion. More studies should be performed in order to test the viability of their use as active ingredients for oral care products.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Preventive, Restorative and Pediatric Dentistry
04 Faculty of Medicine > School of Dental Medicine > Restorative Dentistry, Research
04 Faculty of Medicine > School of Dental Medicine

UniBE Contributor:

Niemeyer, Samira Helena; Baumann, Tommy; Meyer-Lückel, Hendrik and Saads Carvalho, Thiago

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0300-5712

Publisher:

Elsevier Science

Language:

English

Submitter:

Tommy Baumann

Date Deposited:

05 Jan 2022 16:21

Last Modified:

09 Jan 2022 01:51

Publisher DOI:

10.1016/j.jdent.2020.103567

PubMed ID:

33387569

Uncontrolled Keywords:

Acquired salivary pellicle Dental erosion Enamel Polyphenols Tea

BORIS DOI:

10.48350/162165

URI:

https://boris.unibe.ch/id/eprint/162165

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