IADR Abstract Archives
Development of Fluorapatite-Titanium Composites for Dental Implant Applications
Objectives: This study investigated the crystallinity and phase composition of Fluorapatite-Titanium composites synthesized through the calcium phosphate cement (CPC) method.
Methods: Fluorapatite-Titanium (FAP-Ti) discs (6 mm D × 3 mm H) were prepared by mixing a cement powder consisting of 19.89 wt% Ca(OH)2, 73.12 wt% CaHPO4, 6.99 wt% CaF2, and four levels of Titanium powder (0%, 10%, 25%, and 40%) with a cement liquid (0.5 mol/L (NH4)2HPO4 solution) at powder to liquid ratios of 1.8, 2.0, 2.3, or 3.3. The hardened FAP discs were thermally treated at 900°C and 1200°C. The hardened FAP-Ti discs were analyzed for their crystallinity and phase composition using powder X-ray diffractometry (XRD) and Fourier-transform infrared (FTIR) spectroscopy.
Results: The XRD pattern of the FAP cement specimen showed FAP cement was the only phase in the hardened discs. The degree of crystallinity improved with the thermal treatment at 900°C and 1200°C. No deteriorations were observed in the FAP crystal structure at 1200°C, indicating its stability under high-temperature conditions. XRD analysis of the FAP-Ti discs revealed the emergence of new peaks within the XRD pattern of FAP located at 2θ: 35.1°, 38.4°, 41.12°, and they are related to the Ti atomic planes (100), (002), and (101), respectively. The peak intensity of the (101) plane increased by 1.2% and 3.7%, with the increase of Ti concentration to 25% and 40%, respectively. FTIR analysis showed additional bands accompanying the FAP pattern at 1525 cm-1, 2419.7 cm-1, and 2806 cm-1 and were assigned to the Ti.
Conclusions: Apatite formed through the CPC method is a pure FAP phase with high crystallinity and strong stability under high-temperature conditions. This method appeared to be suitable for the synthesis of FAP-Ti composites. Further studies are underway to understand the properties of these composites and their suitability for dental implant applications.
Methods: Fluorapatite-Titanium (FAP-Ti) discs (6 mm D × 3 mm H) were prepared by mixing a cement powder consisting of 19.89 wt% Ca(OH)2, 73.12 wt% CaHPO4, 6.99 wt% CaF2, and four levels of Titanium powder (0%, 10%, 25%, and 40%) with a cement liquid (0.5 mol/L (NH4)2HPO4 solution) at powder to liquid ratios of 1.8, 2.0, 2.3, or 3.3. The hardened FAP discs were thermally treated at 900°C and 1200°C. The hardened FAP-Ti discs were analyzed for their crystallinity and phase composition using powder X-ray diffractometry (XRD) and Fourier-transform infrared (FTIR) spectroscopy.
Results: The XRD pattern of the FAP cement specimen showed FAP cement was the only phase in the hardened discs. The degree of crystallinity improved with the thermal treatment at 900°C and 1200°C. No deteriorations were observed in the FAP crystal structure at 1200°C, indicating its stability under high-temperature conditions. XRD analysis of the FAP-Ti discs revealed the emergence of new peaks within the XRD pattern of FAP located at 2θ: 35.1°, 38.4°, 41.12°, and they are related to the Ti atomic planes (100), (002), and (101), respectively. The peak intensity of the (101) plane increased by 1.2% and 3.7%, with the increase of Ti concentration to 25% and 40%, respectively. FTIR analysis showed additional bands accompanying the FAP pattern at 1525 cm-1, 2419.7 cm-1, and 2806 cm-1 and were assigned to the Ti.
Conclusions: Apatite formed through the CPC method is a pure FAP phase with high crystallinity and strong stability under high-temperature conditions. This method appeared to be suitable for the synthesis of FAP-Ti composites. Further studies are underway to understand the properties of these composites and their suitability for dental implant applications.