ABRASIVENESS OF DENTIFRICES ON THE BRAZILIAN MARKET

  • Karla Nahomi Baba Lorenzetti University of São Paulo
  • Marcos Roberto Tovani Palone University of São Paulo
  • Thaieny Ribeiro da Silva University of São Paulo
  • José Roberto Magalhães Bastos University of São Paulo
  • Ana Lúcia Pompéia Fraga de Almeida University of São Paulo
  • Gisele da Silva Dalben University of São Paulo
Keywords: Dentifrice, Tooth Abrasion, Preventive Dentistry

Abstract

To evaluate, in vitro, the abrasiveness of 42 dentifrices and one dental pumice. Acrylic resin specimens were used for uniformity. The study used three different batches of 42 dentifrices and one dental pumice, with three specimens per product. Tests were performed on an automatic toothbrushing machine, producing 100,000 strokes of oscillating movements for each specimen with soft bristle toothbrushes, corresponding to 4.2 years of toothbrushing. The specimens were ultrasonicated in deionized water and dried. Wear was analyzed by the difference in the weight of specimens before and after toothbrushing and was correlated with type of dentifrice, purpose and abrasive agent by one-way analysis of variance. The dentifrices presented variation in percent weight loss, yet without significant difference according to the main abrasive agent (carbonate/silica), type of dentifrice (paste/gel), and purpose. Greatest weight loss was observed for dental pumice, followed by desensitizing, bicarbonate-containing, whitening, conventional and infant dentifrices and deionized water, though without statistically significant differences. Dentifrices with calcium carbonate and in paste form were more abrasive. The dental pumice was the most abrasive, followed by desensitizing, bicarbonate-containing, whitening, conventional and infant dentifrices.

Author Biographies

Karla Nahomi Baba Lorenzetti, University of São Paulo
DDS, Specialist in Public Health Dentistry. Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo.
Marcos Roberto Tovani Palone, University of São Paulo
DDS, Specialist in Pediatric Dentistry, Graduate student (MSc degree). Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo.
Thaieny Ribeiro da Silva, University of São Paulo
DDS, Specialist in Pediatric Dentistry, MSc, Graduate student (PhD degree). Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo
José Roberto Magalhães Bastos, University of São Paulo
DDS, MSc, PhD. Full Professor, Bauru School of Dentistry, University of São Paulo
Ana Lúcia Pompéia Fraga de Almeida, University of São Paulo
DDS, MSc, PhD. Professor, Bauru Dental School and Hospital for Rehabilitation of Craniofacial Anomalies
Gisele da Silva Dalben, University of São Paulo
DDS, MSc, PhD. Pediatric dentist, Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo
Published
2013-07-29
Section
Promoção da Saúde