Metal Dental Implants Crowns High Antioxidant Or Implant Abutments
Surgical Grade Stainless Steel
Surgical stainless steel is a specific type of stainless steelused in medical applications, and includes alloyingelements of chromium, nickel, and molybdenum.
Thechromium gives the metal its scratch resistance andcorrosion resistance. The nickel provides a smooth andpolished finish. The molybdenum gives greater hard-
ness and helps maintain a cutting edge.
Stainless steel is easy to clean and sterilize, strong,and corrosion resistant. Nickel/chrome/molybdenumalloys are sometimes used for implant abutments,
but immune system reaction to nickel is a potentialcomplication. Surgical grade stainless steel can beused for temporary implant abutments but is not anideal materialof choice for permanent implantabutment.
Comparison of the physical properties of different dental implant materials
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| Titaniumalloy grade 5 | CPT4 | Zirconia | Bone |
(MPA) | 993 | 662 | 1000 | 104121 |
strength (MPA) | 970 | 328 | 2000 | 170 |
elasticity (GPA | 113.8 | 103 | 200 | 1015 |
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Nevins et al.s study on soft tissue healingusing Laser-Lok
A prospective preclinical trial using a canine modelto compare Laser-Lok abutments to machined tita-nium abutment surfaces
The study confirmed that the Laser-Lok abutmentsinhibited the apical migration of the junctional epithelium, prevented coronal resorption, and provided a connective tissue attachment
On histologic examination the Laser-Lok design provided healing in a similar fashion to the naturaldentition. The connective tissue fibers healed perpendicular to the abutment surface demonstratingthe rationale behind Laser-Loks favorable soft