Evaluation of the effect of fluorinated tooth bleaching products using polarized Raman microscopy and particle induced gamma-ray emission

Pessanha, Sofia; Silva, S.; Silveira, João; Otel, Iulian; Luís, H.; Manteigas, V.; Jesus, A.P.; Mata, António; Fonseca, M.

doi:10.1016/j.saa.2020.118378

Cited by 9 publications

(15 citation statements)

References 35 publications

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“…3− into the low-frequency region, as well as the appearance of additional modes in the region of 1076 cm −144, 47,49,50,53,56 . Less probable is the A-type substitution, where the OH group is replaced by the radical CO 3 2− .…”

Section: Discussionmentioning

confidence: 97%

“…In the case of enamel fluorosis, the A-type mode CO 3 2− intensity is by several times lower in both surface and deep enamel layers (see Fig. 6), possibly due to the inclusion of fluorine atoms in the apatite structure 15,43,46,50 . It should be also noted that according to the results of Leroy et al 46 PO 4 3− ν 2 and PO 4 3− ν 4 modes in the Raman spectra of enamel were more broad than in the spectra of FAp.…”

Section: Discussionmentioning

confidence: 97%

“…The formation of carbonate substituted hydroxyapatite is due to the anionic substitution of PO 4 3− group in the apatite by CO 3 2− (B-type substitution) 30 , 44 , 49 , 53 . This leads to a shift of the high-intensity mode ν 1 PO 4 3− into the low-frequency region, as well as the appearance of additional modes in the region of 1076 cm −1 44 , 47 , 49 , 50 , 53 , 56 . Less probable is the A-type substitution, where the OH group is replaced by the radical CO 3 2− .…”

Section: Discussionmentioning

confidence: 99%

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Development of a new approach to diagnosis of the early fluorosis forms by means of FTIR and Raman microspectroscopy

Seredin

Goloshchapov

Ippolitov

et al. 2020

Sci Rep

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This study is aimed at investigating the features of mineralization of the enamel apatite at initial stages of fluorosis development. Samples of teeth with intact and fluorotic enamel in an early stage of the disease development (Thylstrup–Fejerskov Index = 1–3) were studied by Raman scattering and FTIR using Infrared Microspectroscopy beamline at Australian Synchrotron equipment. Based on the data obtained by optical microspectroscopy and calculation of the coefficient R [A-type/B-type], which represents the ratio of carbonation fraction of CO32−, replacing phosphate or hydroxyl radicals in the enamel apatite lattice, the features of mineralization of enamel apatite in the initial stages of development of the pathology caused by an increased content of fluorine in the oral cavity were established. Statistical analysis of the data showed significant differences in the mean values of R [A-type/B-type] ratio between the control and experimental groups for surface layers (p < 0.01). The data obtained are potentially significant as benchmarks in the development of a new approach to preventive diagnostics of the development of initial and clinically unregistered stages of human teeth fluorosis, as well as personalized control of the use of fluoride-containing caries-preventive agents.

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

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Development of a new approach to diagnosis of the early fluorosis forms by means of FTIR and Raman microspectroscopy

Seredin

Goloshchapov

Ippolitov

et al. 2020

Sci Rep

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“…Em seu estudo, Pessanha et al (2020) fizeram comparação entre quatro produtos comerciais que possuíam princípios ativos com concentrações diferentes: peróxido de carbamida 16% (Opalescence PF® e VivaStyle®) ou peróxido de hidrogênio Research, Society and Development, v. 10, n. 3, e40910313643, 2020 (CC BY 4.0) | ISSN 2525-3409 | DOI: http://dx.doi.org/10.33448/rsd-v10i3.13643 6% (Opalescence Go PF® e VivaStylePaintOn®) e presença ou não de flúor. O estado cristalino do esmalte foi determinado pela da taxa de despolarização da banda de alongamento simétrica do fosfato (a 959 cm − 1).…”

Section: Na Pesquisa Deunclassified

Métodos de clareamento dental para o sucesso clínico: uma análise comparativa de estudos clínicos através de uma revisão integrativa da literatura

Souza

Queiroz

Tito

et al. 2021

RSD

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Atualmente o clareamento dental é um dos procedimentos mais procurados pelos pacientes na odontologia estética. Tendo em vista a variedade de técnicas disponíveis, é necessário que o cirurgião-dentista esteja apto a escolher o melhor método para atingir o sucesso clínico desse procedimento. Objetivo: Realizar uma revisão integrativa da literatura, com ênfase nos estudos clínicos sobre o clareamento dental na clínica odontológica e responder à pergunta norteadora, além de apresentar os melhores métodos para o sucesso clínico. Metodologia: Trata-se de uma revisão integrativa da literatura de natureza qualitativa realizada a partir da pergunta norteadora: quais os principais aspectos para um sucesso clínico no manejo de clareamentos dentais na clínica odontológica? As bases de dados foram: U. S. National Library of Medicine (NLM - PubMed) e Science Health and Medical Journals (ScienceDirect), utilizando os seguintes descritores em Inglês encontrados no Descritores em ciências da saúde (Decs): Tooth Bleaching (Clareamento dentário), Tooth Bleaching Agents (Agentes de branqueamento dentário) e Methods (métodos). Os critérios de inclusão foram artigos publicados em inglês, português e espanhol; publicações entre janeiro de 2020 e janeiro de 2021 e que abordavam a temática de maneira satisfatória. Foram excluídos artigos que não atendiam aos critérios de inclusão. Foram encontrados 3.761 artigos na íntegra, após aplicação dos critérios de inclusão e leitura especializada, 14 artigos foram selecionados. Resultados e Discussão: Constatou-se que para alcançar o sucesso clínico do clareamento dental é necessário avaliar fatores intrínsecos ou extrínsecos ao agente clareador: A luz LED violeta (405–410nm) pode melhorar a eficácia do clareamento dental, sem aumentar a sensibilidade; a adição de NaF/ TMP no consultório o clareamento não interferiu na eficácia do clareamento, reduziu a desmineralização, penetração, citotoxicidade, e a alteração celular morfológica foi intensa para todos os géis clareadores; a descoloração do MTA foi melhorada igualmente bem entre a pré-aplicação do DBA e pós-branqueamento; Em relação ao creme dental clareador, o pH mais alto produz uma melhor mudança de tonalidade; 10%, antes do clareamento em consultório, não reduziu o risco e a intensidade da sensibilidade dentária e não prejudicou a mudança de cor; o laser não melhorou os resultados em comparação com o não uso de laser durante o clareamento; o polimento das amostras causou alterações significativas na taxa de despolarização e anisotropia da banda de alongamento simétrica do fosfato, e aumentou a taxa de desmineralização; resina de alto volume apresentou pequena mudança de cor; o ProRoot MTA branco tende a causar descoloração em preto e azul. SavDen MTA, formulado com gluconato de lactato de cálcio, pode ser usado para reduzir a descoloração dos dentes no tratamento endodôntico; os agentes de branqueamento foram eficazes e demonstraram influência moderada na percepção estética e no impacto psicossocial dos pacientes. Considerações Finais: o uso da luz ultravioleta, a busca por materiais que ofereçam menor risco de diminuição da dureza do esmalte e a combinação do tratamento caseiro com o de consultório contribuem para o sucesso clínico do clareamento dental.

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“…Many studies with controversial results have assessed the effect of bleaching products on mineral content and physical properties of the tooth surface [8][9][10][11][12]. Since the acidic nature of the whitening products raised concerns regarding the possibility of alteration in the enamel composition, fluoridated dental bleaching products were introduced to the market [13]. Studies have reported the remineralization potential of these fluoridated dental bleaching products [13,14].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of bleaching agent effects on color and microhardness change of silver diamine fluoride-treated demineralized primary tooth enamel: An in vitro study

2022

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Background The present study aimed to assess the impact of application of fluoridated- 10% carbamide peroxide (CP) with or without potassium iodide (KI) on silver diamine fluoride (SDF)-treated enamel surface in the primary teeth. Methods After stained-remineralized caries lesions (s-RCLs) creation, 96 teeth were randomly allocated to four experimental groups: Group 1:SDF-treated enamel followed by 8-h/day application of 10% CP for 2 weeks; Group 2: SDF-treated enamel followed by 15-min/day application of 10% CP for 3 weeks; Group 3: SDF + KI-treated enamel followed by 8-h/day application of 10% CP for 2 weeks; and Group 4: SDF + KI-treated enamel followed by 15-min/day application of 10% CP for 3 weeks. Enamel microhardness (EMH) test (n = 12) and spectrophotometric color assessment (n = 12) was performed at four stages: baseline (intact enamel), demineralized enamel, aged remineralized-stained enamel, and after final intervention. Sixteen samples were used for SEM evaluation. Data were analyzed with the paired t-test, one-way ANOVA, and Tukey’s post-hoc test (p < 0.05). Results EMH values in all groups showed significant decrease after demineralization (all, p < 0.00001). All samples showed complete recovery of EMH values (%REMH) after SDF application compared to demineralization (%REMHSDF) (p = 0.971). Bleaching caused a slight decrease in %REMH for all groups. However, the differences were not statistically significant (p = 0.979). SEM findings revealed no changes in enamel porosity after bleaching. Bleaching application ameliorated the discoloration in all groups (all, p < 0.00001). All samples in Groups 2 and 4 had significantly lighter color after 21 days as compared to 14-day exposure to the bleaching material (both, p < 0.00001). Conclusions SDF application on demineralized primary tooth enamel completely recovered enamel microhardness. 10% carbamide peroxide effectively bleached SDF stain without causing significant decrease in EMH values. Color improvement was more evident with the use of KI immediately after SDF application. Both 15-min and 8-h application of fluoridated CP resulted in statistically similar color enhancement in primary teeth.

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Evaluation of the effect of fluorinated tooth bleaching products using polarized Raman microscopy and particle induced gamma-ray emission

Cited by 9 publications

References 35 publications

Development of a new approach to diagnosis of the early fluorosis forms by means of FTIR and Raman microspectroscopy

Development of a new approach to diagnosis of the early fluorosis forms by means of FTIR and Raman microspectroscopy

Métodos de clareamento dental para o sucesso clínico: uma análise comparativa de estudos clínicos através de uma revisão integrativa da literatura

Evaluation of bleaching agent effects on color and microhardness change of silver diamine fluoride-treated demineralized primary tooth enamel: An in vitro study

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