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In‐vitro and in‐vivo wear profile of composite resins
Author(s) -
SATOU N.,
KHAN A.M.,
SATOU K.,
SATOU J.,
SHINTANI H.,
WAKASA K.,
YAMAKI M.
Publication year - 1992
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.1365-2842.1992.tb01588.x
Subject(s) - composite number , in vivo , in vitro , composite material , materials science , chemistry , microbiology and biotechnology , biology , biochemistry
Summary The aim of this study was to evaluate in‐vitro wear by two types of slurry of 10 commercial composite resin materials (seven hybrid and three microfilled composites). There was great variation in the in‐vitro wear pattern by two types of slurry. The wear rate of microfilled composites was greater than that of hybrid composites, and a negative correlation was observed between wear rate and Knoop hardness values among all materials when hydroxyapatite slurry was used. In contrast, the wear rate of hybrid composites was greater than that of microfilled composites when abraded by green carborundum slurry. These abraded surfaces were compared with SEM micrographs of in‐vivo composites surface after 4 years of service. The profile of in‐vivo wear surfaces was found to be similar to that of in‐vitro wear surfaces abraded with hydroxyapatite slurry.