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In vitro efficacy of commercial and experimental proteolytic enzyme-based whitening dentifrices on enamel whitening and superficial roughness.
Schwarzbold, Christian Gonçalves; Cuevas-Suárez, Carlos Enrique; Pacheco, Rafael Rocha; Ribeiro, Juliana Silva; Carreño, Neftali Lenin Villarreal; Lund, Rafael Guerra; Piva, Evandro.
Afiliación
  • Schwarzbold CG; Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil.
  • Cuevas-Suárez CE; Dental Materials Laboratory, Academic Area of Dentistry, Autonomous University of Hidalgo Sate, Pachuca, Hgo, Mexico.
  • Pacheco RR; Department of Restorative Dentistry, School of Dentistry, University of Detroit Mercy, Detroit, Michigan, USA.
  • Ribeiro JS; Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil.
  • Carreño NLV; Graduate Program in Materials Science and Engineering, CDTEc, Federal University of Pelotas, Pelotas, Brazil.
  • Lund RG; Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil.
  • Piva E; Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil.
J Esthet Restor Dent ; 33(6): 849-855, 2021 09.
Article en En | MEDLINE | ID: mdl-33615676
ABSTRACT

OBJECTIVE:

To evaluate the whiteness index (WID ) and surface roughness (Ra) of bovine enamel after simulated tooth brushing with different commercial and experimental whitening dentifrices. MATERIALS AND

METHODS:

Cylindrical enamel bovine specimens were acid etched, stained, and divided in nine groups (n = 8) Colgate® Optic White®, Crest® Baking Soda and Peroxide, Arm and Hammer® Advanced White™ Extreme Whitening, Rembrandt® Deeply White® + Peroxide, Close up® White Attraction Natural Glow, Hinode Prowhite, and experimental dentifrice containing papain (PP), bromelain (PB), or papain and bromelain (PPB). Ra and WID were obtained initially and after 600, 1200, and 3,600 cycles of simulated tooth brushing. Data were analyzed using two-way analysis of variance test (α = 0.05).

RESULTS:

Ra was significantly influenced by both dentifrice (p = 0.043) and period of tooth-brushing simulation (p < 0.001). Except for PP and PPB, all groups showed a statistically significant increase in Ra after simulated tooth brushing. After staining and brushing, none of the materials tested increased the initial WID .

CONCLUSIONS:

The effect of commercial whitening dentifrices may be related to their high abrasiveness. Experimental formulations tested provided a similar effect without undesired wear of enamel. Whitening dentifrices only act through an abrasive effect rather than bleaching the tooth structures. When used, special care must be taken for avoid undesired wear of enamel. Experimental dentifrices provided similar removal of extrinsic stains without undesired abrasiveness; however, this effect may be due to the use of less aggressive abrasives in their formulations.
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Texto completo: 1 Bases de datos: MEDLINE Asunto principal: Blanqueamiento de Dientes / Dentífricos Límite: Animals Idioma: En Revista: J Esthet Restor Dent Asunto de la revista: ODONTOLOGIA Año: 2021 Tipo del documento: Article País de afiliación: Brasil

Texto completo: 1 Bases de datos: MEDLINE Asunto principal: Blanqueamiento de Dientes / Dentífricos Límite: Animals Idioma: En Revista: J Esthet Restor Dent Asunto de la revista: ODONTOLOGIA Año: 2021 Tipo del documento: Article País de afiliación: Brasil