Limits...
Shynthesis and Characterizations of Calcium Hydroxyapatite Derived from Crabs Shells (Portunus pelagicus) and Its Potency in Safeguard against to Dental Demineralizations.

Raya I, Mayasari E, Yahya A, Syahrul M, Latunra AI - Int J Biomater (2015)

Bottom Line: Calcination was conducted to crab's shells of Portunus pelagicus at temperature of 1000°C for 5 hours.The results of calcination was reacted with (NH4)2HPO4, then dried at 110°C for 5 hours.The results showed that the rate of tooth demineralization in acetate buffer decreased significantly with the provision of hydroxyapatite into a solution where the addition of the magnitude of hydroxyapatite is greater decrease in the rate of tooth demineralization.

View Article: PubMed Central - PubMed

Affiliation: Chemistry Department, Faculty of Mathematics and Natural Sciences, Hasanuddin University, Makassar 90245, Indonesia.

ABSTRACT
Crab's shells of Portunus pelagicus species were used as raw materials for synthesis of hydroxyapatite were used for protection against demineralization of teeth. Calcination was conducted to crab's shells of Portunus pelagicus at temperature of 1000°C for 5 hours. The results of calcination was reacted with (NH4)2HPO4, then dried at 110°C for 5 hours. Sintering was conducted to results of precipitated dried with temperature variations 400-1000°C for a hour each variation of temperature then characterized by X-ray diffractometer and FTIR in order to obtain the optimum formation temperature of hydroxyapatite is 800°C. The hydroxyapatite is then tested its effectiveness in protection against tooth demineralization using acetate buffer pH 5.0 with 1 M acetic acid concentration with the addition of hydroxyapatite and time variation of immersion. The results showed that the rate of tooth demineralization in acetate buffer decreased significantly with the provision of hydroxyapatite into a solution where the addition of the magnitude of hydroxyapatite is greater decrease in the rate of tooth demineralization.

No MeSH data available.


Related in: MedlinePlus

Diffractogram of sample were sintered at 800°C, where, HA = Ca10(PO4)6(OH)2, A= α-TKF = α-Ca3(PO4)2, B = β-TKF = βCa3(PO4)2, AK = AKA = Ca10(PO4)6CO3 and AB = AKB = Ca10(PO4)6CO3(OH)2.
© Copyright Policy - open-access
Related In: Results  -  Collection


getmorefigures.php?uid=PMC4508471&req=5

fig6: Diffractogram of sample were sintered at 800°C, where, HA = Ca10(PO4)6(OH)2, A= α-TKF = α-Ca3(PO4)2, B = β-TKF = βCa3(PO4)2, AK = AKA = Ca10(PO4)6CO3 and AB = AKB = Ca10(PO4)6CO3(OH)2.

Mentions: The X-ray diffractograms of Ca10(PO4)6(OH)2 synthesized at a 800°C temperature sintering can be seen in Figure 6, where the peaks of HA are symbolized by the peak of the crystal Ca10(PO4)6(OH)2, while peak α-TKF is symbolized crystalline peaks of α-Ca3(PO4)2, the symbol β-TKF for crystalline β-Ca3(PO4)2, AKA for Ca10(PO4)6CO3, and AKB for Ca10(PO4)6CO3(OH)2. The highest intensity peak at 31.2572 deg corresponding to crystalline α-Ca3(PO4)2 is seen, the second highest peak intensity is 31.7783, and the third highest peak intensity is 28.0565 crystals suitable for Ca10(PO4)6(OH)2.


Shynthesis and Characterizations of Calcium Hydroxyapatite Derived from Crabs Shells (Portunus pelagicus) and Its Potency in Safeguard against to Dental Demineralizations.

Raya I, Mayasari E, Yahya A, Syahrul M, Latunra AI - Int J Biomater (2015)

Diffractogram of sample were sintered at 800°C, where, HA = Ca10(PO4)6(OH)2, A= α-TKF = α-Ca3(PO4)2, B = β-TKF = βCa3(PO4)2, AK = AKA = Ca10(PO4)6CO3 and AB = AKB = Ca10(PO4)6CO3(OH)2.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4508471&req=5

fig6: Diffractogram of sample were sintered at 800°C, where, HA = Ca10(PO4)6(OH)2, A= α-TKF = α-Ca3(PO4)2, B = β-TKF = βCa3(PO4)2, AK = AKA = Ca10(PO4)6CO3 and AB = AKB = Ca10(PO4)6CO3(OH)2.
Mentions: The X-ray diffractograms of Ca10(PO4)6(OH)2 synthesized at a 800°C temperature sintering can be seen in Figure 6, where the peaks of HA are symbolized by the peak of the crystal Ca10(PO4)6(OH)2, while peak α-TKF is symbolized crystalline peaks of α-Ca3(PO4)2, the symbol β-TKF for crystalline β-Ca3(PO4)2, AKA for Ca10(PO4)6CO3, and AKB for Ca10(PO4)6CO3(OH)2. The highest intensity peak at 31.2572 deg corresponding to crystalline α-Ca3(PO4)2 is seen, the second highest peak intensity is 31.7783, and the third highest peak intensity is 28.0565 crystals suitable for Ca10(PO4)6(OH)2.

Bottom Line: Calcination was conducted to crab's shells of Portunus pelagicus at temperature of 1000°C for 5 hours.The results of calcination was reacted with (NH4)2HPO4, then dried at 110°C for 5 hours.The results showed that the rate of tooth demineralization in acetate buffer decreased significantly with the provision of hydroxyapatite into a solution where the addition of the magnitude of hydroxyapatite is greater decrease in the rate of tooth demineralization.

View Article: PubMed Central - PubMed

Affiliation: Chemistry Department, Faculty of Mathematics and Natural Sciences, Hasanuddin University, Makassar 90245, Indonesia.

ABSTRACT
Crab's shells of Portunus pelagicus species were used as raw materials for synthesis of hydroxyapatite were used for protection against demineralization of teeth. Calcination was conducted to crab's shells of Portunus pelagicus at temperature of 1000°C for 5 hours. The results of calcination was reacted with (NH4)2HPO4, then dried at 110°C for 5 hours. Sintering was conducted to results of precipitated dried with temperature variations 400-1000°C for a hour each variation of temperature then characterized by X-ray diffractometer and FTIR in order to obtain the optimum formation temperature of hydroxyapatite is 800°C. The hydroxyapatite is then tested its effectiveness in protection against tooth demineralization using acetate buffer pH 5.0 with 1 M acetic acid concentration with the addition of hydroxyapatite and time variation of immersion. The results showed that the rate of tooth demineralization in acetate buffer decreased significantly with the provision of hydroxyapatite into a solution where the addition of the magnitude of hydroxyapatite is greater decrease in the rate of tooth demineralization.

No MeSH data available.


Related in: MedlinePlus