Ni-Cr Alloys Assessment for Dental Implants Suitability

被引：9

作者：

Achitei, Dragos Cristian ^{[1
]}

Baltatu, Madalina Simona ^{[1
]}

Vizureanu, Petrica ^{[1
,2
]}

Sandu, Andrei Victor ^{[1
,3
]}

Benchea, Marcelin ^{[4
]}

Istrate, Bogdan ^{[4
]}

机构：

[1] Gheorghe Asachi Tech Univ Iasi, Fac Mat Sci & Engn, Dept Technol & Equipments Mat Proc, Blvd Mangeron 51, Iasi 700050, Romania

[2] Tech Sci Acad Romania, Dacia Blvd 26, Bucharest 030167, Romania

[3] Natl Inst Res & Dev Environm Protect INCDPM, Splaiul Independentei 294, Bucharest 060031, Romania

[4] Gheorghe Asachi Tech Univ Iasi, Fac Mech Engn, Blvd Mangeron 51, Iasi 700050, Romania

来源：

APPLIED SCIENCES-BASEL | 2022年 / 12卷 / 24期

关键词：

Ni-Cr; properties; cast samples; dental alloys; STRENGTH; TITANIUM;

D O I：

10.3390/app122412814

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The performance of the field and the condition of success in oral implantology today require the review and reevaluation of the means that contribute essentially to ensuring the stability and durability of the implant, starting from the nature of the biomaterial and continuing with the characteristics of the optimally designed biosurface. This paper proposes a comparative analysis of three commercial alloys, VeraBond, Kera N, and VeraSoft, compared to a modified dental alloy, with the aim of improving some mechanical properties. They have been studied structurally and mechanically. The microstructural structure shows that the alloys crystallize in the face-centered cube system, and the cast alloy has a dendritic structure with large grains. XRD diffractograms highlight that alloys exhibit three compounds Cr156.00 Al596.00: 9013031, Ni4.00, and Cr30.00Al48.00. The hardness measurements showed values between 203 HV and 430 HV. As the percentage of silicon increases, the hardness decreases. The modulus of elasticity obtained by the indentation method for the dental alloys was in the range of 46-153 GPa. The results showed that the hardness and elastic modulus of the new alloy was significantly minimized compared to the classical alloys used.

引用

页数：11

共 40 条

[11] Estimation of Young's modulus and Poisson's ratio of soft tissue from indentation using two different-sized indentors: finite element analysis of the finite deformation effect [J].