1983
DOI: 10.1002/jbm.820170505
|View full text |Cite
|
Sign up to set email alerts
|

Biodegradation behavior of various calcium phosphate materials in bone tissue

Abstract: In order to study the biodegradation behavior of calcium phosphate materials, cylinders of standard size were implanted in the tibiae of rabbits. Material parameters were stoichiometry (hydroxyapatite with a Ca/P ratio of 1.67 versus tricalcium phosphate with a Ca/P ratio of 1.50), crystallographic structure (apatite versus beta-whitlockite), microporosity, and macroporosity. The extent of biodegradation was evaluated by radiography, light and fluorescence microscopy, microradiography, and porosity measurement… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

12
239
0
7

Year Published

1996
1996
2017
2017

Publication Types

Select...
7

Relationship

0
7

Authors

Journals

citations
Cited by 547 publications
(269 citation statements)
references
References 10 publications
12
239
0
7
Order By: Relevance
“…Figure 7A also displays the results for the degradation behavior of β-TCP samples at the different L/P. It is interesting to note that, in spite of having a much higher solubility, with a solubility product of 28.9 (-log K PS ) [11], [58] and larger pore sizes (Fig. 6), its degradation was lower than that of CDHA, which can be explained by the much smaller SSA.…”
Section: Discussionmentioning
confidence: 99%
See 2 more Smart Citations
“…Figure 7A also displays the results for the degradation behavior of β-TCP samples at the different L/P. It is interesting to note that, in spite of having a much higher solubility, with a solubility product of 28.9 (-log K PS ) [11], [58] and larger pore sizes (Fig. 6), its degradation was lower than that of CDHA, which can be explained by the much smaller SSA.…”
Section: Discussionmentioning
confidence: 99%
“…The former, i.e. Ca 9 (PO 4 ) 5 (HPO 4 )(OH), is inherently more soluble than stoichiometric HA, i.e.Ca 10 (PO 4 ) 6 (OH) 2 [57], with solubility products of 85.1 (-log K PS ) and 116.8 (-log K PS ) respectively [11], due to its distorted lattice and consequently lower crystallinity. The results obtained suggest that the incorporation of carbonate ions in this kind of pre-distorted lattice does not have the same effect than in stoichiometric HA; rather than increasing the solubility the opposite happens.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…122 On the basis of the composition and stoichiometry of a calcium-phosphate ceramic, important physical properties such as degradation rate, modulus, and processability can be changed. [123][124][125][126] Research on TCP materials has revealed that the degradation rate is too rapid in vivo, while synthetic versions of HAp degrade too slowly to allow native tissue integration. This phenomenon motivated the development of BCP and bio-glasses which have tunable (to some degree) degradation rates based on the relative magnitude of TCP (more commonly b-TCP) and HAp in a composite ceramic.…”
Section: Bone Biomimeticsmentioning
confidence: 99%
“…rate. 123,129,130,140,147 However, these materials hold little clinical utility due to their poor mechanical properties discussed above. Natural polymers such as collagen, fibrin, alginate, gelatin, and GAGs have also been extensively investigated as drug delivery vehicles in bone tissue engineering.…”
Section: Localized Bioactive Molecule and Drug Delivery In Bone Repairmentioning
confidence: 99%