NMR with advancements over the time can now use pseudo wave function to gain information of large complex structures such as hydroxyapatites.
In the experiments that we conducted enamel and hydroxyapatites were subjected to demineralization and remineralization using acids and solutions of different concentrations.
The study was conducted to observe if there is any difference in the chemical structure of demineralized and remineralized enamel and hydroxyapatite using solid state 31P MAS NMR techniques.
Synthetic hydroxyapatite provided by Plasma Biotal was used for the experiments, while extracted teeth provided by tissue culture labs were used for the enamel.
Key Words: Hydroxyapatite, remineralization, demineralization, NMR.
Different studies have been conducted on the structure and chemical composition of hydroxyapatite and enamel by using NMR.
Zinc is well-known doping agent for hydroxyapatites employed in biomedical applications, because they improve the phosphate bioactivity in many ways.
Substituted hydroxyapatites for bone repair, Journal of Materials Science: Materials in Medicine, 23(10): 2335-2347.
Among various phases of calcium phosphate, biphasic calcium phosphate (BCP) ceramic, an intimate mixture of hydroxyapatite (HA, [Ca.
In addition, drug release from zinc-doped hydroxyapatite is higher than that from pure HA .
A number of preparation techniques of zinc substituted hydroxyapatite have been tried so far.