CLAUDIA BIANCHI ZAMATARO

CLAUDIA BIANCHI ZAMATARO

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Evaluation of the anti-caries effect beyond the critical enamel pH of preventive treatment of fluoride associated with Nd:YAG laser irradiation
2021 - JUVINO, AMANDA C.; ROMANO, MARIANA; ALVES, NATHALIA Z.; FREITAS, THAIS R.; ZAMATARO, CLAUDIA B.; ZEZELL, DENISE M.
This study aimed to evaluate the anti-caries effect of fluoride associated with Nd:YAG laser irradiation in the h-eatment of enamel Eight groups (n = S) were analyzed: Negative Control pH 4.5; Negative control pH 4; Fluoride pH 4.5; Fluoride pH 4; Nd-YAG pH 4.5; Nd-YAG pH 4; (Fluoride + Nd-YAG) pH 4.5 and (Fluoride + Nd-YAG) pH 4. All samples were analyzed by Scanning Electron Microscopy (SEM) before and after the cycle. Quantification of phosphorus in the cycling solutions was carried out using the colorimetric method, as an indication of enamel demineralization. The anti-caries effect of the Fluoride + Nd: YAG treatment in addition to the critical pH of the enamel can be observed in the morphological analysis, however in the analysis of the demineralization solutions, the amount of phosphorus showed a difference only in the Fluoiide group compared to the others in the investigative pH.
In vitro determination of the critical pH demineralization of human dental enamel irradiated with Nd:YAG laser associated with fluoridated product
2019 - JUVINO, AMANDA C.; ZAMATARO, CLAUDIA B.; RABELO, THAIS F.; KUCHAR, NIELSEN G.; ZANINI, NATHALIA; CASTRO, PEDRO; ZEZELL, DENISE
The use of fluoride products associated with high intensity laser irradiation are beneficial for dental caries prevention because it increases the surface area, improving the formation of fluorapatite (FA), which gives greater acid-resistance of enamel against bacterial acids. The objective of this study is to determine the critical pH of dental enamel treated with acid fluoride phosphate 12,300 lF-/g (APF) and Nd:YAG laser 84 J/cm2, as there is no precedent to determine this pH. The study consisted of 4 groups (n = 15): G1: Negative Control; G2: APF; G3: Nd:YAG; G4: APF + Nd:YAG. Each group was randomized into three subgroups (n = 5) for pH cycling. The cycling was designed to simulate three conditions: below critical pH of enamel hydroxyapatite (pH 5.0); pH below critical for hydroxyapatite and fluorapatite (pH 4.5); condition further below the critical situation to investigate extent of acid resistance of the enamel (pH 4.0). The samples were analyzed by scanning electron microscopy (SEM), Fourier infrared spectroscopy (FTIR) and solutions were quantified fluoride (specific ion electrode) and phosphate (colorimetric method). In SEM and FTIR (phosphate band) at pH 5, only the APF and APF + Nd:YAG groups did not present demineralization. At pH 4.5, only the APF + Nd:YAG group was integrated. At pH 4, APF + Nd:YAG showed signs of mild demineralization while the other groups showed aggressive signals. It is concluded that the irradiated fluorapatite has critical dissolution pH different from fluorapatite formed only with the application of fluorine.
The use of Nd:YAG laser as an alternative to prevent dentin wear
2016 - PEREIRA, D.L.; ZAMATARO, C.B.; ZEZELL, D.M.; FREITAS, A.Z.; ANA, P.A.
The aim of this study is to verify the potential of Nd:YAG laser and topical acidulated phosphate fluoride application (APF) on preventing dentin wear using the optical coherence tomography (OCT) on monitoring this process.
In vivo study of holmium laser irradiation on dental structure
2011 - ZEZELL, DENISE M.; EDUARDO, PATRICIA L. de P.; STREFEZZA, CLAUDIA; ZAMATARO, CLAUDIA B.; CORREA, PAULO; SALVADOR, VERA L.R.; ROSSI, WAGNER de; BACHMANN, LUCIANO
Estudo in vivo da estrutura dental irradiada com laser de holmium
2010 - EDUARDO, PATRICIA L. de P.; STREFEZZA, CLAUDIA; ZAMATARO, CLAUDIA B.; BENETTI, CAROLINA; SALVADOR, VERA L.R.; EDUARDO, CARLOS de P.; ROSSI, WAGNER de; BACHMANN, LUCIANO; ZEZELL, DENISE M.
Influence of Er,Cr:YSGG laser on CaFsub(2)-like products formation because of professional acidulated fluorides or to dentifrice application
2013 - ZAMATARO, CLAUDIA B.; ANA, PATRICIA A.; BENETTI, CAROLINA; ZEZELL, DENISE M.