Abstract:
:This study investigated the effects of spherical silica fillers on the physical and mechanical properties of resin-modified glass-ionomer cement (RMGIC). Specimens were fabricated by mixing untreated (UF) or silanized (SF) spherical silica filler into the powder of a commercially prepared RMGIC. The original RMGIC and a preparation containing 20 wt% spherical silica filler were also examined with regard to their fractured surface and fluoride release. The fillers increased the compressive strength remarkably: up to 17% in the case of SF and 9% in the case of UF. Both UF and SF increased the flexural strength by up to 17%. The addition of SF increased the DTS up to 38%, but UF decreased the DTS. The addition of SF improved the workability and the mechanical properties of the RMGIC.
journal_name
Dent Mater Jjournal_title
Dental materials journalauthors
Tjandrawinata R,Irie M,Yoshida Y,Suzuki Kdoi
10.4012/dmj.23.146keywords:
subject
Has Abstractpub_date
2004-06-01 00:00:00pages
146-54issue
2eissn
0287-4547issn
1881-1361journal_volume
23pub_type
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