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- Title
Variation in structure and properties of a non-dispersive TTCP/DCPA-derived CPC immersed in Hanks’ solution.
- Authors
CHEN, W. C.; JU, C. P.; CHERN LIN, J. H.
- Abstract
The present work is to characterize a non-dispersive, fast-setting and high-strength tetra calcium phosphate (TTCP)/dicalcium phosphate anhydrous (DCPA)-based calcium phosphate cement (nd-CPC) recently developed in the authors’ laboratory. Comparison between this CPC and a conventional TTCP/DCPA-based CPC (c-CPC) is made. The results show that, during setting c-CPC reaches its pH plateau after 10 min, while nd-CPC approaches plateau after 20 min. During immersion in Hanks’ solution the pH values of both cements reach their maxima after immersion for a few days, then decline eventually to near neutrality. With immersion time TTCP and DCPA phases gradually dissolve and apatite phase precipitates. The nd-CPC has a higher apatite formation rate and denser structure than c-CPC under similar conditions, especially at early stage. The nd-CPC also demonstrates higher strength both during setting and after immersion.
- Subjects
CALCIUM phosphate; APATITE; HYDROXYAPATITE; PHOSPHATES; DENTAL cements
- Publication
Journal of Oral Rehabilitation, 2007, Vol 34, Issue 7, p541
- ISSN
0305-182X
- Publication type
Article
- DOI
10.1111/j.1365-2842.2003.01207.x