In situ assessment of the saliva effect on enamel morphology after microabrasion technique
Braz. j. oral sci
; 13(3): 187-192, Jul-Sep/2014. tab, graf
Article
em En
| LILACS
| ID: lil-725354
Biblioteca responsável:
BR218.1
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...Palavras-chave
Texto completo:
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Índice:
LILACS
Assunto principal:
Saliva
/
Microabrasão do Esmalte
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Esmalte Dentário
Limite:
Female
/
Humans
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Male
Idioma:
En
Revista:
Braz. j. oral sci
Assunto da revista:
ODONTOLOGIA
Ano de publicação:
2014
Tipo de documento:
Article
/
Project document