PMID- 15348153
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20050228
LR  - 20191026
IS  - 0957-4530 (Print)
IS  - 0957-4530 (Linking)
VI  - 10
IP  - 4
DP  - 1999 Apr
TI  - Incorporation of a controlled-release glass into a calcium phosphate cement.
PG  - 215-8
AB  - A so-called controlled-release glass was synthesized occurring in the system 
      CaO-Na2O-P2O5. A certain sieve fraction of this glass was incorporated in a 
      calcium phosphate cement, of which the powder contained alpha-tricalcium 
      phosphate (alpha-TCP), dicalcium phosphate (DCP) and precipitated hydroxyapatite 
      (HA). The glass appeared to retard the cement setting slightly and it reduced 
      considerably the compressive strength after aging in aqueous solutions which were 
      continuously refreshed. Scanning electron microscope (SEM) pictures and X-ray 
      diffraction (XRD) patterns of the samples after 5 weeks of aging showed that the 
      glass was not dissolved but that large brushite crystals were formed. Thereby, 
      aging in CaCl2 solutions resulted in more brushite formation than aging in NaCl 
      solutions. The brushite crystals did not reinforce the cement. Neither was the 
      aged glass-containing cement weaker than it was before the brushite formation 
      right after complete setting. In conclusion, the incorporation of 
      controlled-release glasses into a calcium phosphate cement and subsequent aging 
      in aqueous solutions did not result in the formation of macropores in the cement 
      structure, but that of brushite crystals. This incorporation reduced the 
      compressive strength of the cement considerably.
CI  - Copyright 1999 Kluwer Academic Publishers
FAU - Khairoun, I
AU  - Khairoun I
AD  - Department of Materials Science and Metallurgy, Universitat Politecnica de 
      Catalunya, Avda. Diagonal 647, E-08028, Barcelona, Spain.
FAU - Boltong, M G
AU  - Boltong MG
FAU - Gil, F J
AU  - Gil FJ
FAU - Driessens, F C
AU  - Driessens FC
FAU - Planell, J A
AU  - Planell JA
FAU - Seijas, M M
AU  - Seijas MM
FAU - Martinez, S
AU  - Martinez S
LA  - eng
PT  - Journal Article
PL  - United States
TA  - J Mater Sci Mater Med
JT  - Journal of materials science. Materials in medicine
JID - 9013087
EDAT- 2004/09/07 05:00
MHDA- 2004/09/07 05:01
CRDT- 2004/09/07 05:00
PHST- 2004/09/07 05:00 [pubmed]
PHST- 2004/09/07 05:01 [medline]
PHST- 2004/09/07 05:00 [entrez]
AID - 234728 [pii]
AID - 10.1023/a:1008954011349 [doi]
PST - ppublish
SO  - J Mater Sci Mater Med. 1999 Apr;10(4):215-8. doi: 10.1023/a:1008954011349.