Microchemical and Micromorphologic ESEM-EDX Analysis of Bone Mineralization at the Thread Interface in Human Dental Implants Retrieved for Mechanical Complications After 2 Months to 17 Years

2018 ◽  
Vol 38 (3) ◽  
pp. 431-441 ◽  
Author(s):  
Maria Gandolfi ◽  
Fausto Zamparini ◽  
Giovanna Iezzi ◽  
Marco Degidi ◽  
Daniele Botticelli ◽  
...  
Keyword(s):  
Dental Implants ◽  
Bone Mineralization ◽  
Edx Analysis ◽  
Mechanical Complications

scholarly journals Effects of Long Durations of RF–Magnetron Sputtering Deposition of Hydroxyapatite on Titanium Dental Implants

2021 ◽  
Author(s):  
Ihab Nabeel Safi ◽  
Basima Mohammed Ali Hussein ◽  
Hikmat J. Aljudy ◽  
Mustafa S. Tukmachi
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Magnetron Sputtering ◽  
Dental Implants ◽  
Substrate Surface ◽  
Rf Magnetron Sputtering ◽  
P Value ◽  
Edx Analysis ◽  
Significant Difference ◽  
Scanning Electron

Abstract Objectives Dental implant is a revolution in dentistry; some shortages are still a focus of research. This study use long duration of radiofrequency (RF)–magnetron sputtering to coat titanium (Ti) implant with hydroxyapatite (HA) to obtain a uniform, strongly adhered in a few micrometers in thickness. Materials and Methods Two types of substrates: discs and root form cylinders were prepared using a grade 1 commercially pure (CP) Ti rod. A RF–magnetron sputtering device was used to coat specimens with HA. Magnetron sputtering was set at 150 W for 22 hours at 100°C under continuous argon gas flow and substrate rotation at 10 rpm. Coat properties were evaluated via field emission scanning electron microscopy (FESEM), scanning electron microscopy–energy dispersive X-ray (EDX) analysis, atomic force microscopy, and Vickers hardness (VH). Student’s t-test was used. Results All FESEM images showed a homogeneous, continuous, and crack-free HA coat with a rough surface. EDX analysis revealed inclusion of HA particles within the substrate surface in a calcium (Ca)/phosphorus (P) ratio (16.58/11.31) close to that of HA. Elemental and EDX analyses showed Ca, Ti, P, and oxygen within Ti. The FESEM views at a cross-section of the substrate showed an average of 7 µm coat thickness. Moreover, these images revealed a dense, compact, and uniform continuous adhesion between the coat layer and the substrate. Roughness result indicated highly significant difference between uncoated Ti and HA coat (p-value < 0.05). A significant improvement in the VH value was observed when coat hardness was compared with the Ti substrate hardness (p-value < 0.05). Conclusion Prolonged magnetron sputtering successfully coat Ti dental implants with HA in micrometers thickness which is well adhered essentially in excellent osseointegration.

Chemical and Morphologic Analysis of Titanium Dental Implants: X-ray Photoemission Techniques (XPS) and Scanning Electron Microscopy (SEM) with EDX Analysis

2018 ◽  
Vol 69 (2) ◽  
pp. 474-477 ◽  
Author(s):  
Gianfranco Semez ◽  
Carmen Todea ◽  
Daliana Mocuta ◽  
Ioana Tuta Sas ◽  
Ruxandra Luca
Keyword(s):  
Dental Implants ◽  
Chemical Elements ◽  
Pure Titanium ◽  
Biological Tissues ◽  
Material Surface ◽  
X Ray ◽  
Edx Analysis ◽  
Order Of Magnitude ◽  
Biological Reaction

Nowadays the implants rehabilitations are used deeply by clinicians. The importance to technological improvement is working to find the best surface of the fixture to obtain a good and stable osteointegration. By the use of the Energy Dispersive X-ray (EDX) analysis and the X-ray Photoemission Spectroscopy (XPS) evaluate the surface quality of commercial implants. The XPS analysis was made to evaluate the chemical elements that compose the material surface of the implant and determine the state of atomical connections. The EDX analysis was performed to evaluate the characteristic qualitative and quantitative of the metallic alloys of the fixtures to determinate the pureness of the metals under the surfaces. The major difference found between the samples is the amount of surface aluminum (in oxidized state, alumina), which in the samples 2 appears to be more than an order of magnitude greater (12 times). In Sample 2 there are traces of P, Na and Cl not present in Sample 1. The presence of C, O, N, Si and Ca are similar on both samples (1 and 2). Now, in the market there are many different dental implants. All the producers are working hard on micro and macro design of the fixtures, but not so many attentions is spent on the type of the alloy composing the implant. From this analysis, it is observed that different Type 4 dental implant are not so similar by composition. Moreover, the pure Titanium is well tolerated by biological tissues, on the other hand is not well known if the presence of other materials can influence the biological reaction. The samples of the fixture analyzed present different composition of the alloy, although both classified as Type 5 Titanium. Further studies on this topic are needed to understand if these differences of alloy composition can influence the clinical outcome.

Does the transversal screw design increase the risk of mechanical complications in dental implants? A finite elements analysis

2019 ◽  
pp. e3205 ◽  
Author(s):  
Fernando Sánchez Lasheras ◽  
Javier Gracia Rodríguez ◽  
Mario Mauvezín‐Quevedo ◽  
Elena Martín‐Fernández ◽  
Javier Bobes‐Bascarán ◽  
...  
Keyword(s):  
Finite Elements ◽  
Dental Implants ◽  
Finite Elements Analysis ◽  
Screw Design ◽  
Mechanical Complications

scholarly journals Bone mineralization and immediate function of six dental implants in patients with Klinefelter syndrome

2021 ◽  
Vol 9 (10) ◽  
Author(s):  
Galina Ciobanu ◽  
Francesca De Angelis ◽  
Eugen Slabari ◽  
Giorgio Pompa
Keyword(s):  
Dental Implants ◽  
Klinefelter Syndrome ◽  
Bone Mineralization ◽  
Immediate Function

Cost-effectiveness of dental implants: a utility analysis

1990 ◽  
Vol 54 (11) ◽  
pp. 688-689 ◽  
Author(s):  
J Jacobson ◽  
B Maxson ◽  
K Mays ◽  
J Peebles ◽  
C Kowalski
Keyword(s):  
Cost Effectiveness ◽  
Dental Implants ◽  
Utility Analysis
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