پیوندهای مفید
آمار
| تعداد نشریات | 20 |
| تعداد شمارهها | 1,095 |
| تعداد مقالات | 10,041 |
| تعداد مشاهده مقاله | 28,018,334 |
| تعداد دریافت فایل اصل مقاله | 7,813,499 |
Influence of Incorporating Fluoroapatite Nanobioceramic on the Compressive Strength and Bioactivity of Glass Ionomer Cement | ||
| Journal of Dental Biomaterials | ||
| مقاله 4، دوره 3، شماره 3، آبان 2016 اصل مقاله (889.05 K) | ||
| نوع مقاله: Original Article(s) | ||
| نویسندگان | ||
| Masoumeh Khaghani1؛ Sara Alizadeh* 1؛ Ali Doostmohammadi2 | ||
| 1Young Researchers and Elite Club, Najafabad Branch, Islamic Azad University, Najafabad, Iran | ||
| 2Materials Department, Engineering faculty, Shahrekord University, Shahrekord, Iran | ||
| چکیده | ||
| Statement of Problem: In order to increase the performance of glass ionomer cement, it is reinforced with metal powders, short fibers, bioceramics and other materials. Fluoroapatite (Ca10 (PO4 )6 F2 ) is found in dental enamel and is usually used in dental materials due to its good chemical and physical properties.Objectives: In this study, the effects of the addition of synthesized fluoroapatite nanoceramic on the compressive strength and bioactivity of glass ionomer cement were investigated.Materials and Methods: The synthesized fluoroapatite nanoceramic particles (~ 70 nm) were incorporated into as-prepared glass ionomer powder and were characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). Moreover, the compressive strength values of the modified glass ionomer cements with 0, 1, 3 and 5 wt% of fluoroapatite were evaluated.Results: Results showed that glass ionomer cement containing 3 wt%fluoroapatite nanoparticles exhibited the highest compressive strength (102.6± 4) compared to the other groups, including control group. Furthermore, FTIR and SEM investigations indicated that after soaking the glass ionomer cement- 3 wt% fluoroapatite composite in the simulated body fluid solution, the intensity of O-H, P-O and C-O absorption bands increased as a result of the formation of apatite layer on the surface of the sample, and the rather flat and homogeneous surface of the cement became more porous and inhomogeneous.Conclusions: Addition of synthesized nano-fluoroapatite to as-prepared glass ionomer cement enhanced the compressive strength as well as nucleation of the calcium phosphate layer on the surface of the composite. This makes it a good candidate for dentistry and orthopedic applications.Key words: Fluoroapatite, Nanoparticle, Glass Ionomer Cement, Simulated Body Fluid | ||
|
آمار تعداد مشاهده مقاله: 982 تعداد دریافت فایل اصل مقاله: 40 |
||