Premium
Effect of resin monomer composition on toothbrush wear resistance
Author(s) -
Kawai K.,
Iwami Y.,
Ebisu S.
Publication year - 1998
Publication title -
journal of oral rehabilitation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 93
eISSN - 1365-2842
pISSN - 0305-182X
DOI - 10.1111/j.1365-2842.1998.00246.x
Subject(s) - abrasion (mechanical) , wear resistance , materials science , monomer , toothbrush , composite material , methacrylate , resin composite , indentation hardness , composite number , polymer , microstructure , brush
The purpose of this study was to compare the toothbrush abrasion resistance of seven different experimental resins which were made by changing the composition of resin monomers. The experimental resins were made by mixing four kinds of dental resin monomers (Bis‐GMA, UDMA, TMPT and TEGDMA), camphorquinone (1 wt%), dimethylaminoethyl methacrylate (2 wt%) and 2,6‐di‐ tert ‐butyl‐ p ‐cresol (0·05 wt%). The resin specimens were stored in air for 2 weeks, and then put on a toothbrush abrasion testing machine. After 100 000 strokes, the wear loss of each specimen was determined by weight change during the wear test. TMPT‐TEGDMA resin showed the most wear resistance, while Bis‐GMA‐ and UDMA‐based resins showed increased wear resistance with an increased content of TEGDMA. Also, a inverse relationship between the microhardness number and the amount of wear of the respective resins was confirmed.