White Teeth

Replacement Of Missing Teeth With Implant Dentistry

In implant dentistry, devices are used to replace missing teeth. They are made of titanium, an inert metal that bonds with the bone, forming a very tight union called osseointegration. The modern system of dental implants, the endosseous system, is extremely successful and has a 90% to 95% success rate.

The dental implant itself replaces the root of the tooth. It is usually in the shape of a screw or a cylinder. The implant connects to a component (the abutment) that joins the implant to the replacement tooth (the crown).

Dental implants are ideal replacements for teeth. When healthy teeth have to be prepared for crowns or bridges, healthy tooth structure needs to be removed. But if only one tooth is missing, the dental implant can simply replace it without having to sacrifice the adjacent teeth.

Dental implants can also be used to replace many missing teeth. Multiple teeth can be replaced with implant dentistry and can avoid the need for a removable denture. Removable dentures can be hard to get used to. They may have clasps that can be unsightly and put additional stress on the existing teeth. Full dentures may be difficult to wear and may interfere with eating and speaking. People who wear dentures for a long time may have additional loss of the bone that supports the denture. This bone loss can be accelerated by osteoporosis, and eventually dentures may be very difficult to wear if not impossible. Poor-fitting dentures can interfere with proper nutrition and quality of life.

Generally, one implant is needed to replace each missing tooth. In some situations, several implants need to be joined together into a bridge. This adds greater strength to the implant restoration. If there is not enough bone available to replace a whole set of teeth, implants may be used as anchors for dentures. When dentures are supported by implants they can be much more stable and the implants help prevent the deterioration of the bone that supports the denture.

The endosseous system of implant dentistry has been used for over 30 years. They can look and feel like natural teeth, adding comfort and improving the smile of people of all ages.

By Laura Minsk, DMD

+Jim Du Molin is a leading Internet search expert helping individuals and families connect with the right dentist in their area. Visit his author page.

Evolution of Tooth Implants

Dental implantology has made huge strides in just the past 20 years - but the concept is anything but new.

The idea of a tooth replacement anchored permanently into the jaw has been around since antiquity. Archeologists know the ancient Egyptians tried to implant precious stones into the jawbone where teeth were lost. Half a world away, Mayan ruins in Mexico turned up jawbones with tooth implants carved from seashells.

Tooth loss is one of humankind's most common afflictions - and permanent replacement one of dentistry's fondest dreams. If you have a missing tooth or teeth, you probably understand why.

Fast-forward now from the Third Dynasty to today's dental research labs. Three major research advances - all in the past 15 years - combined to make dental implants practical and workable in a wide range of patients.

Tooth implants substitute the rooting of 32 individual teeth with a few metal anchor posts onto which snaps either an overdenture or a fixed bridge. Investigators found that posts made of the metal titanium were strong, non-toxic over years in the mouth, and biologically compatible.

The next critical discovery was the concept of "osseointegration" - in which the healing jawbone actually grows into the dental implant post. This union is capable of sealing harmful bacteria out of the bone tissue.

Credit the computer revolution with the final critical breakthrough: Computerized Tomography (CT) can be used to develop a model of the jawbone's surface. This eliminates the need for preliminary surgery required to make impressions of the jawbone. For certain patients CT imaging can make tooth implant surgery a one-step procedure.

Teeth implants aren't for everybody. But research technicians have expanded its potential beyond the dreams of - well, certainly Ramses II.

+Jim Du Molin is a leading Internet search expert helping individuals and families connect with the right dentist in their area. Visit his author page.