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Several conventional surface treatments have been used on feldspathic ceramic. They include Al2O3 + Er:YAG laser, aluminum oxide sandblasting, and hydrofluoric acid etching. However, these treatments have not been investigated in relation to osseointegration.
Aluminum oxide sandblasting has been used safely for industrial applications for many years. It is a versatile abrasive that is suitable for use on a variety of surfaces. However, it is important to note that it may wear down blasting equipment more quickly than other abrasives.
Aluminum oxide is one of the hardest minerals known to man. It is also one of the most common abrasives used for blast cleaning. This makes it an excellent choice for deburring, lettering stone, and removing heavy foreign matter. It is also used in etching glass and is an excellent coating for aluminium.
Although aluminum oxide is considered a safe abrasive, it may wear down blasting equipment more quickly. Therefore, it is recommended that you wear protective breathing equipment. Sandblasting equipment should also be replaced regularly.
Feighan et al. studied the biological behavior of Al2O3. They found that alumina particles varying in size and shape were present. This may be correlated with surface roughness. The surface roughness was comparable on all dental implants. They also found that CFU's/mm2 were lower on Al2O3 shot-blasted surfaces compared to control surfaces. However, they did not investigate the effect of Al2O3 sandblasting on the formation of bone.
Halpern and Rouleau used aluminum oxide sandblasting with different particle sizes on buccal surfaces of premolars. They found that the shear bond strength increased proportionally to the particle size. They used 25-um, 50-um, and 100-um particles.
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