In vitro assessment of dental erosion caused by clear aligners

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorCase Western Reserve University-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorThe University of Texas Health Science Center at San Antonio-
Autor(es): dc.creatorNobrega, Celestino-
Autor(es): dc.creatorNunes, Gabriel Pereira-
Autor(es): dc.creatorde Paiva Buischi, Yvonne-
Autor(es): dc.creatorKajimoto, Natália de Campos-
Autor(es): dc.creatorDelbem, Alberto Carlos Botazzo-
Data de aceite: dc.date.accessioned2025-08-21T16:07:15Z-
Data de disponibilização: dc.date.available2025-08-21T16:07:15Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-04-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.jmbbm.2024.106390-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/305051-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/305051-
Descrição: dc.descriptionThe primary objective of this in vitro study was to investigate the erosive potential of enamel under the use of clear aligners (CA), by simulating in vivo conditions experienced by patients who do not remove their CA during the consumption of acidic beverages. In addition, the difference in erosion protection conferred by artificial and human saliva was also evaluated. Sound-extracted human premolars (n = 20) had half of their surfaces protected with acid-resistant nail polish and were randomly distributed into two experimental groups (n = 10): teeth immersed in human saliva or artificial saliva. All teeth had half of their lingual surfaces enclosed by a CA device. The erosive challenges consisted of individual immersion of each sample in citrus acid three times a day, intermediated by immersion in human saliva or artificial saliva for 2 h, during ten days of the erosive protocol. The enamel mineral content was analyzed by high-resolution microtomography. The differential mineral concentration profiles were obtained by subtracting the profile of the mineral concentration of the exposed area and enamel under the CA area from the respective sound area (control). In addition, enamel wear and enamel volume loss were measured. Scanning electron microscopy (SEM) was also performed to analyze the enamel surface. Data were analyzed by two-way ANOVA, followed by the Student-Newman-Keuls test. The enamel wear was higher in teeth immersed in artificial saliva, when compared to human saliva (p < 0.001). The volume loss of the exposed enamel area was lower for tooth immersed in human saliva than in artificial saliva (p < 0.001), during the acid challenge protocol. The use of CA during acid challenges promoted wear and mineral loss of dental enamel, being these changes more pronounced on the enamel surface under the CA. These results open a new path for the development of further studies adopting clinical protocols that promote more accurate responses in the clinical practice during orthodontic treatment.-
Descrição: dc.descriptionDepartment of Orthodontics Case Western Reserve University-
Descrição: dc.descriptionDepartment of Preventive and Restorative Dentistry São Paulo State University, São Paulo-
Descrição: dc.descriptionDepartment of Periodontics The University of Texas Health Science Center at San Antonio-
Descrição: dc.descriptionDepartment of Preventive and Restorative Dentistry São Paulo State University, São Paulo-
Idioma: dc.languageen-
Relação: dc.relationJournal of the Mechanical Behavior of Biomedical Materials-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBiofilms-
Palavras-chave: dc.subjectClear aligner appliances-
Palavras-chave: dc.subjectDental enamel-
Palavras-chave: dc.subjectHuman-
Palavras-chave: dc.subjectOrthodontics-
Palavras-chave: dc.subjectSaliva-
Palavras-chave: dc.subjectTooth erosion-
Título: dc.titleIn vitro assessment of dental erosion caused by clear aligners-
Tipo de arquivo: dc.typelivro digital-
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