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In Vitro Assessment of the Abrasion Resistance of Two Types of Artificial Teeth Submitted to Brushing
Author(s) -
Policastro Vivian Barnabé,
Giro Gabriela,
Leite Andressa Rosa Perin,
MendozaMarin Danny Omar,
Paleari André Gustavo,
Compagi Marco Antonio,
Pero Ana Carolina
Publication year - 2016
Publication title -
journal of prosthodontics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.902
H-Index - 60
eISSN - 1532-849X
pISSN - 1059-941X
DOI - 10.1111/jopr.12455
Subject(s) - dentifrice , distilled water , dentistry , significant difference , abrasion (mechanical) , acrylic resin , tooth brushing , mathematics , medicine , materials science , chemistry , composite material , toothbrush , chromatography , brush , inorganic chemistry , statistics , fluoride , coating
Purpose To assess the effect of brushing with different solutions on the abrasion resistance of two types of acrylic resin teeth. Materials and Methods Maxillary premolars from two types of acrylic teeth (Biotone and Biotone IPN) were divided into six groups (n = 12), according to the solution used during brushing: distilled water (control), coconut soap, or dentifrice. A mechanical brushing machine was used to simulate approximately 1 year of brushing (11,000 strokes). The weight loss (WL) of teeth was obtained from the difference between the initial (IW) and final weight (FW) of each specimen, and the mean of percentage of weight loss (PWL) was calculated for each group. Data were analyzed using the Kruskal‐Wallis test, followed by Bonferroni's post‐test comparison (α = 0.05). Results A statistically significant difference was found for the factor solution ( p < 0.001). Brushing using dentifrice caused the highest values of weight loss (–0.50%), in comparison with the groups brushed with coconut soap (0.00%) or distilled water (0.00%). Conclusions For both types of artificial teeth, brushing with dentifrice produced higher abrasion than brushing with coconut soap or water.