Color stability and surface roughness of artificial teeth brushed with an experimental Ricinus communis toothpaste

Author(s)

Lourenço de Moraes Rego Roselino ^[1] ; Carla Cecília Alandia-Román ^[2] ; Vanessa María Fagundes Leite ^[3] ; Cláudia Helena Silva-Lovato ^[4] ; Fernanda de Carvalho Panzeri Pires-de-Souza ^[5]

Affiliation

^[1] Universidade de São Paulo. Ribeirão Preto School of Dentistry. Department of Dental Materials and Prosthodontics - Brasil

^[2] Universidade de São Paulo. Ribeirão Preto School of Dentistry. Department of Dental Materials and Prosthodontics - Brasil

^[3] Universidade de São Paulo. Ribeirão Preto School of Dentistry. Department of Dental Materials and Prosthodontics - Brasil

^[4] Universidade de São Paulo. Ribeirão Preto School of Dentistry. Department of Dental Materials and Prosthodontics - Brasil

^[5] Universidade de São Paulo. Ribeirão Preto School of Dentistry. Department of Dental Materials and Prosthodontics - Brasil

• Document type: Journal article
• Source: Braz. J. Oral Sci.; v. 14, n. 4, p. 267-271, 2015-12-00.

Abstract

Abstract Aim: To evaluate, in vitro, the effect of brushing with a Ricinus communis-based experimental toothpaste on color stability and surface roughness of artificial teeth. Methods: Ninety artificial teeth (maxillary central incisors) in different shades, light and dark (NatusDent Triple Pressing, Dentbras) were used. Initial color (Spectrophotometer Easyshade, VITA) and surface roughness (Rugosimeter Surfcorder SE 1700, Kosakalab) readouts were performed. After baseline measurements, samples were assigned to 10 groups (n=9) according to the artificial tooth shade and type of toothpaste used during the mechanical brushing test (Pepsodent, MAVTEC): Sorriso Dentes Brancos - SDB, Colgate Luminous White - CLW (Colgate-Palmolive), Close up White Now - CWN (Unilever), Trihydral - THL (Perland Pharmacos) and Ricinus communis - RCE (Experimental). After 29,200 cycles of brushing, corresponding to 2 years of brushing by a healthy individual, new color and roughness readouts of the specimens were performed. Data (before and after the tests) were statistically analyzed (2-way repeated measures ANOVA, Tukey, p<0.05). Results: RCE toothpaste produced the greatest color stability for dark tooth shade and the second best color stability for light tooth shade. For surface roughness alteration, there was no difference (p>0.05) for any tested toothpaste regardless of tooth shade. Conclusions: The experimental Ricinus communis toothpaste did not cause color and surface roughness alteration in the artificial teeth, and it may be considered a suitable option for denture cleaning. (AU)

• FAPESP's process: 12/13342-4 - Clinical evaluation of color and surface roughness of dental enamel and dental composites submitted to brushing with whitening dentifrice
• Grantee: Lourenço de Moraes Rego Roselino
• Support Opportunities: Scholarships in Brazil - Doctorate