Tab. 3.
Metal release from wires (17 different products) and metal release from orthodontic brackets (5 different products)
Tab. 3 Metallfreisetzung aus Drähten (17 verschiedene Produkte) sowie aus kieferorthopädischen Brackets (5 unterschiedliche Produkte)
| Vendor | Alloy | Product Name | Co, µg | Cr, µg | Mn, µg | Ni, µg |
|---|---|---|---|---|---|---|
| 3M Unitek | Nitinol Heat-Activated | 4297-913 | <LOQ | <LOQ | <LOQ | 0.40 ± 0.02 (γ) |
| 3M Unitek | Nitinol Heat-Activated | 4296-991 4296-992 | <LOQ | <LOQ | <LOQ | 0.208 ± 0.006 (γ) |
| 3M Unitek | Nitinol Heat-Activated | 9296-611 9296-612 | <LOQ | <LOQ | <LOQ | 0.094 ± 0.003 (α) |
| 3M Unitek | Nitinol SuperElastic | 4296-912 4296-911 | <LOQ | <LOQ | <LOQ | 0.17 ± 0.01 (α) |
| 3M Unitek | Nitinol SuperElastic | 4297-833 4297-834 | <LOQ | <LOQ | <LOQ | 0.27 ± 0.01 (γ) |
| 3M Unitek | Nitinol SuperElastic dimpled | 9296-914 9296-913 | <LOQ | <LOQ | <LOQ | 0.15 ± 0.01 (α) |
| 3M Unitek | Permachrome | 300-018 | <LOQ | 0.045 ± 0.001 (γ) | 0.037 ± 0.001 (γ) | 0.049 ± 0.002 (γ) |
| 3M Unitek | Permachrome | 299-185 | <LOQ | <LOQ | 0.026 ± 0.001 (γ) | 0.041 ± 0.001 (γ) |
| Dentaurum | DIN 1.4310 | 765-201-00 765-301-00 | <LOQ | 0.033 ± 0.001 (γ) | 0.059 ± 0.002 (γ) | 0.107 ± 0.003 (γ) |
| Dentaurum | DIN 1.4310 | 767-101-00 767-201-00 | <LOQ | 0.027 ± 0.001 (γ) | 0.064 ± 0.002 (α) | 0.095 ± 0.003 (γ) |
| Dentaurum | Rematitan | 766-080-00 766-081-00 | <LOQ | <LOQ | <LOQ | 2.47 ± 0.07 (γ) |
| Dentaurum | Rematitan | 766-082-00 766-083-00 | <LOQ | <LOQ | <LOQ | 1.32 ± 0.04 (γ) |
| Ormco | AISI 302 | 210-0026 | <LOQ | <LOQ | 0.028 ± 0.001 (α) | 0.057 ± 0.004 (γ) |
| Ormco | AISI 302 | 210-0701 | <LOQ | <LOQ | 0.113 ± 0.003 (α) | 0.076 ± 0.003 (γ) |
| Ormco | Ni–Ti | 205-0009 | <LOQ | <LOQ | <LOQ | 0.269 ± 0.008 (α) |
| Ormco | Ni–Ti | 205-0001 | <LOQ | <LOQ | <LOQ | 0.098 ± 0.007 (γ) |
| Ormco | Ni–Ti | 210-0502 | <LOQ | <LOQ | <LOQ | 0.152 ± 0.009 (γ) |
| 3 M Unitek | Stainless steel | Victory Series, twin MBT, 017-452 | <LOQ | 0.098 ± 0.003 (γ) | 0.045 ± 0.001 (γ) | 0.292 ± 0.009 (α) |
| 3M Unitek | Stainless steel | Victory Series, twin MBT, 017-552 | <LOQ | 0.095 ± 0.003 (α) | 0.054 ± 0.002 (γ) | 0.281 ± 0.008 (α) |
| Dentaurum | DIN 1.4303 | Discovery series, Roth 18, Part Numbers 790-141-00 & 790-141-00 & 790-104-00 & 790-102-00 & 790-163-00 & 790-164-00 & 790-103-00 & 790-105-00 & 790-142-00 & 790-142-00 | <LOQ | 0.035 ± 0.002 (γ) | <LOQ | 0.119 ± 0.006 (γ) |
| Dentaurum | DIN 1.4303 | Discovery series, Roth 18, Part Numbers 790-145-00 & 790-143-00 & 790-108-00 & 790-107-00 & 790-107-00 & 790-107-00 & 790-107-00 & 790-109-00 & 790-144-00 & 790-146-00 | <LOQ | 0.034 ± 0.001 (γ) | <LOQ | 0.149 ± 0.005 (γ) |
| Ormco | AISI 303SE | Full-Size diamond twin series, Part Numbers 347-2001 & 340-1404 & 340-1500 & 347-1208 & 347-1308 & 340-1504 & 340-1505 & 347-2101 & 347-2018 & 347-2118 | 0.026 ± 0.001 (γ) | 0.132 ± 0.004 (γ) | 0.274 ± 0.008 (α) | 1.61 ± 0.05 (γ) |
<LOQ below quantitation limit, α constant release denoting a profile like the one observed for Ni in Fig. 1, γ saturation to describe plateau-like profiles like the ones shown in Fig. 2, β intermediate release designating a release profile that showed signs of saturation but which did not reach saturation during the study period