Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/86544
Type: Artigo de periódico
Title: In Situ Assessment Of The Saliva Effect On Enamel Morphology After Microabrasion Technique
Author: Pini N.I.P.
Lima D.A.N.L.
Sundfeld R.H.
Ambrosano G.M.B.
Aguiar F.H.B.
Lovadino J.R.
Abstract: Aim: This study evaluated saliva effects on enamel morphology surface after microabrasion technique. Methods: Enamel blocks (16 mm2) obtained from bovine incisors were divided into 9 groups as follows: one control group (no treatment), four groups with microabrasion treatment using 35% phosphoric acid and pumice (H3PO4+Pum) and other four groups treated with 6.6% hydrochloric acid and silica (HCl+Sil). One group of each treatment was submitted to 4 frames of saliva exposure: without exposure, 1-h exposure, 24-h exposure, and 7-days exposure on in situ regimen. Nineteen volunteers (n=19), considered as statistical blocks, used an intraoral appliance containing the specimens, for 7 days. Enamel roughness (Ra) was tested before and after treatment, and after saliva exposure. Confocal laser scanning microscopy (CLSM) was used to evaluate qualitatively the enamel morphology. Results: All groups exhibited increased Ra after microabrasion. With regards to saliva exposure, the treatment with HCl+Sil presented more susceptibility to the saliva action, but no period of time was efficient in re-establishing this characteristic compared with the control group. CLSM analysis showed reduction of the micro-abrasive damages during the experimental times. Conclusions: Seven days of saliva exposure were not sufficient for the treated enamel to reach its normal characteristics compared with the control group.
Editor: Piracicaba Dental School - UNICAMP
Rights: aberto
Identifier DOI: 
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-84908172749&partnerID=40&md5=ec79131f9d6728401da18a4e9a18a6a2
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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