Avaliação in vitro do efeito das tinturas de Camellia sinensis e de Aloe arborescens na remineralização de lesão de cárie artificial em esmalte dentário humano

• Ano de defesa: 2015
• Autor(a) principal: Salvia, Ana Carolina Rodrigues Danzi [UNESP]
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Estadual Paulista (Unesp)
• Palavras-chave em Português: Remineralização dentária; Flúor; Cárie dentária; Dental caries
• Link de acesso: http://hdl.handle.net/11449/127709; http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/01-09-2015/000843311.pdf

This in vitro study evaluated the effectiveness of Camellia sinensis and Aloe arborescens tinctures in the remineralization of subsurface carious lesions artificially developed in human dental enamel. Ninety specimens from sound permanent molars were distributed into 6 groups (n=15): GH=sound enamel and artificial saliva, GS=decayed enamel and artificial saliva, GA=decayed enamel and deionized water, GF=decayed enamel and 0.05% sodium fluoride aqueous solution, GC=decayed enamel and C. sinensis tincture and GB=decayed enamel and A. arborescens tincture. Surface microhardness essay was performed on sound specimens (KHN1), after the caries lesion development (KHN2) and after treatment (KHN3). Cross-sectional microhardness essay (KHND) was performed to measure the lesion depth. One specimen of each group was submitted to: EDS to assess the enamel Ca/P ratio; SEM to verify topographical changes on the enamel surface and to the MLP to reveal the histological aspects of carious lesions. The volume percent of mineral content was performed with the KHN3 and KHND averages. The microhardness averages were submitted to the following statistical analyzes: ANOVA, Tukey multiple comparisons, Dunnettt multiple comparisons and paired t test (p<0.05). There was an increase in the surface and cross-sectional microhardness values after treatments, as well as in the mineral content, except for GA. It was concluded that the treatments were effective in remineralization of dental caries on the surface and on the cross-sectional microhardness essays, when compared to GA. All treatments reduced the depth of the lesion, especially the NaF solution, followed by C. sinensis, saliva and A. arborescens