Himachal Dental


Dental Implants : The Secret

 

A typical implant consists of a titanium screw (resembling a tooth root) with a roughened or smooth surface. The majority of dental implants are made out of commercially pure titanium, which is available in 4 grades depending upon the amount of carbon and iron contained. More recently grade 5 titanium has increased in use. Grade 5 titanium, Titanium 6AL-4V, (signifying the Titanium alloy containing 6% Aluminium and 4% Vanadium alloy) is believed to offer similar osseointegration levels as commercially pure titanium. Ti-6Al-4V alloy offers better tensile strength and fracture resistance. Today most implants are still made out of commercially pure titanium (grades 1 to 4) but some implant systems (Endopore and NanoTite) are fabricated out of the Ti-6Al-4V alloy[10] Implant surfaces may be modified either by plasma spraying, anodizing[11], etching or sandblasting to increase the surface area and the integration potential of the implant.The main benefit provided by implant technology is that the new teeth last a life-time. There are few substances that are biocompatible with the human body – and titanium is one of them. Titanium is very strong at a low weight, and is also extremely resistant to corrosion.
While these features are ideal in serving the mechanical needs,  the most unique feature of titanium is that the bone tissuegrows on, and bonds to, the surface of the titanium.

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