In Vitro Study of Dental Erosion associated to Chimo

Background: In Venezuela, chimó is a blackish goo derived from tobacco leaf. Its consumption has been associated with systemic and oral diseases. Purpose: To identify in vitro dental erosion associated to chimó exposure. Methods: The sample consisted of 30 teeth that were assigned 10 to the negative...

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Bibliographic Details
Published in:Universitas odontológica 2017-01, Vol.36 (76)
Main Authors: Néstor Febres Giordano, Medina, Paola Gilioli, Cepeda, Daniela Olávez, Cepeda, Carlos Omaña, Eduvigis Solórzano Navarro
Format: Article
Language:Spanish
Subjects:
Color
Dental enamel
Dental erosion
Dentin
Enamel
Etching
Saliva
Teeth
Tobacco
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Summary:Background: In Venezuela, chimó is a blackish goo derived from tobacco leaf. Its consumption has been associated with systemic and oral diseases. Purpose: To identify in vitro dental erosion associated to chimó exposure. Methods: The sample consisted of 30 teeth that were assigned 10 to the negative control group, another 10 to the positive control group, and 10 to the experimental group, which were exposed respectively to artificial saliva, Coca-Cola® light, and chimó for 20 weeks. Tooth surfaces were analyzed clinically and structurally, the latter through scanning electron microscope. Results: Clinical observations showed surface color change in the negative control group; color change and surface gloss loss in the positive control group; color and surface changes in the experimental group (p=0.000). Ultrastructural analysis showed no enamel surface alterations in the negative control group. Acid etching scale values were 4 for the positive control group and 3-4 for the experimental group. The latter had signs of enamel erosion. In terms of severity of damage, the experimental group was type 1, that is, enamel loss without involving dentin. Conclusion: Under these experimental conditions, chimó caused clinical and ultrastructural enamel surface loss with type 3-4 erosion patterns, and type 1 severity.
ISSN:0120-4319
2027-3444