Types of Implants

Implants placed in Bone

Braenemark's technique in use for over  35 years is based on metal cylinders, made of Titanium, or Titanium oxide, roughly tooth root in shape, and placed or .screwed into the bony jaw

The implants have an internal thread, allowing a post to

.be screwed into the root-face of the implant

A porcelain crown can them be cemented or screwed onto the post

Wide acceptance of this technique has reulted in an explosion of new implants, each with their own specific advantages; and the development of a large number of accessory items; allowing, for example attachment of angulated posts to the implant, ball attachments for dentures, and more.

The development of various rougned surfaces, by sand blasting, and chemicaly roughened surfaces has also had its effect  on treament plans; allowing shorter waiting periods before full loading is permitted; and even immediate loading on freshly placed implants. Immediate loading is permisible when over 35 Npascals is obtained on measuring the shearing strenght of a new implant's attachment to bone as measured by a torque wrench.

Implants placed on the jaw bone

This old technique is now rare or non-existant. 

The implants were were like a trunk of a tree with a metal mesh for roots

They were popular for a short time in the '70s 

and used particularly in places were there was little .or no bone left in the lower jaw 

Advantages of Implant as replacement for missing teeth

Implants are the nearest equivalent to a lost tooth, in shape and function, 

allowing replacement of a missing tooth without damaging or preparing adjacent teeth.

Implants return the jaw to full function, allowing chewing pressures similar 

to those applied on natural teeth, and much greater than removable dentures allow.

Loss of all the teeth in a jaw

When it's too late  to treat and there is no other choice other than extractions, 

the chance should not be lost. Placing implants near to the time of extractions, and placing porcelain crowns 

gives a wonderful restoration and a great aesthetic result.

If time has gone by, and removable dentures rightly seem a poor replacement, 

then fixed screw or cemented bridges on .implants are a better solution

Recently advances in short implants have been wonderful, the Bicon implant

actally encourages new bone growth around the neck of the implant

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