Assessment in vitro of brushing on dental surface roughness alteration by laser interferometry
Braz. oral res
;
22(1): 11-17, Jan.-Mar. 2008. ilus, tab
Article
Dans Anglais
| LILACS
| ID: lil-480577
ABSTRACT
Noncarious cervical lesions (NCCLs) are considered to be of multifactorial origin, normally associated with inadequate brushing. This study assessed the influence in vitro of simulated brushing on NCCL formation. Fifteen human premolars were submitted to brushing in the cementoenamel junction region, using hard-, medium- and soft-bristled brushes associated with a toothpaste of medium abrasiveness under a 200 g load, at a speed of 356 rpm for 100 minutes. The surface topography of the region was analyzed before and after brushing, by means of a laser interferometer, using "cut-off" values of 0.25 and considering roughness values in mm. The initial roughness (mm) results for dentin (D / bristle consistency 1 - soft, 2 - medium and 3 - hard) were as follows (D1) 1.25 ± 0.45; (D2) 1.12 ± 0.44; (D3) 1.05 ± 0.41. For enamel (E / bristle consistency 1 - soft, 2 - medium and 3 - hard), the initial results were (E1) 1.18 ± 0.35; (E2) 1.32 ± 0.25; (E3) 1.50 ± 0.38. After brushing, the following were the values for dentin (D1) 2.32 ± 1.99; (D2) 3.30 ± 0.96; (D3) Over 500. For enamel, the values after brushing were (E1) 1.37 ± 0.31; (E2) 2.15 ± 0.90; (E3) 1.22 ± 0.47. Based on the results of the ANOVA and Tukey statistical analyses (a = .05) it was concluded that soft, medium and hard brushes are not capable of abrading enamel, whereas dentin showed changes in surface roughness by the action of medium- and hard-bristled brushes.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Abrasion dentaire
/
Brossage dentaire
/
Émail dentaire
/
Dentifrices
/
Dentine
Limites du sujet:
Humains
langue:
Anglais
Texte intégral:
Braz. oral res
Thème du journal:
Dentisterie
Année:
2008
Type:
Article
/
descriptif de projet
Pays d'affiliation:
Brésil
Institution/Pays d'affiliation:
Federal University of Uberlândia/BR
/
University of São Paulo/BR
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