Premium
Wear patterns of composite restorative resins in vivo ; observations by scanning electron microscopy
Author(s) -
HENGCHANG XU,
TONG WANG,
SHIQING SONG
Publication year - 1985
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.1365-2842.1985.tb01544.x
Subject(s) - scanning electron microscope , materials science , amalgam (chemistry) , composite number , composite material , abrasive , filler (materials) , matrix (chemical analysis) , dentistry , chemistry , medicine , electrode
Summary In this study, the wear pattern of seven commercial composite resins, one experimental composite and one dental amalgam were investigated. These materials were separately inserted in a separation preparation cavity of the patient's mouth. After clinical service for 3, 9 and 12 months the specimens were taken out and observed by scanning electron microscopy (SEM). It was found that the softer resin matrix wore away first while the inorganic filler particles showed no signs of abrasive wear, whereafter filler particles were loosened once there was no support of the resin matrix around them.