Effect of fluoride solutions on color and surface roughness of dental composites / Efeito de soluções fluoretadas sobre a cor e rugosidade de superfície de compósitos odontológicos
RFO UPF
;
19(1): 77-82, abr. 2014.
Article
in English
|
LILACS-Express
| LILACS
| ID: lil-726463
ABSTRACT
Objective:
The aim of this study was to assess the ac-tion of fluoride solutions on color stability (?E) and sur-face roughness (Ra) of composites (HeliomolarTM, 4 Sea-sonsTM, Tetric N-CeramTM, SR AdoroTM). Materials andmethod:
A Teflon matrix (12x2 mm) was used to fabri-cate 24 test specimens for each composite. The samples were separated into 4 groups (n=6), according to the immersion solution distilled water (control), acidulated phosphate fluoride (1.23%), neutral sodium fluoride gel (2%), and solution of sodium fluoride (0.05%). Color (Spectrophotometer PCB 6807) and roughness (Surf-corder SE 1700) readings were performed before and after immersion into the solutions.Results:
Composites presented color alteration within clinically acceptable limits (?E<3.3), increasing according to the periods of immersion. Regarding roughness, it was observed that Ra values were lower than the critical limit to promote increase in dental biofilm retention (Ra>0.2 µm). Con-clusions Color and surface roughness alteration of the different composites was clinically acceptable after im-mersion in all fluoride solutions and in all periods.
Full text:
Available
Index:
LILACS (Americas)
Language:
English
Journal:
RFO UPF
Journal subject:
Dentistry
Year:
2014
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
University of São Paulo/BR
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