6533b831fe1ef96bd1299a80

RESEARCH PRODUCT

Correlation between alteration of enamel roughness and tooth color

Waldemir-francisco Vieira-juniorGláucia Maria Bovi AmbrosanoDébora Alves Nunes Leite LimaIsabele VieiraFlávio Henrique Baggio Aguiar

subject

OrthodonticsLightnessMaterials scienceEnamel paintResearchAbrasiveEsthetic Dentistry030206 dentistrySurface finish:CIENCIAS MÉDICAS [UNESCO]Tooth discolorationstomatognathic diseases03 medical and health sciences0302 clinical medicinemedicine.anatomical_structurestomatognathic systemvisual_artUNESCO::CIENCIAS MÉDICASvisual_art.visual_art_mediumTukey's range testDentinmedicineGeneral Dentistry030217 neurology & neurosurgerySandpaper

description

Background To establish the correlation between enamel roughness and color change of tooth. Material and Methods Enamel/dentin blocks (5 x 5 x 3.2 mm) were serially ground with the following abrasive paper: 1200-grit, 800-grit, and 600-grit SiC papers. In the paired model, the analyses of color (L*, a*, b*, ΔE) and roughness (Ra) were performed among the sandpaper exposure. The data were subjected to ANOVA using models for repeated measures followed by the Tukey test. The Pearson correlation test was used to determine whether there was a relationship between Ra values and color results (α = 0.05). Results The L* values decreased in accordance with the increase of Ra, with statistical difference between all the times (p0.05). Conclusions The alteration of enamel roughness acted on the lightness and the green-red axis of tooth color. However, there was no significant correlation between the alteration of roughness of enamel and general color change of tooth. Key words:Surface properties, tooth discoloration, color.

https://doi.org/10.4317/jced.54881