Posts that support replacement of teeth are known as dental implants. The dental implants fit directly into the jawbone, hence holding the false teeth in place just like how roots support natural teeth.
It is a metal post with an internal clip that helps to hold the false teeth in place. They are generally made of titanium. They are supposed to last for the longest period in life if one maintains good oral hygiene and looks after them well.
After a surgery, to fix the implant the jawbone has to fuse with the titanium rod which takes several months. Bridges, dentures and crowns at times are attached to the implants to reinstate the missing teeth. Replacing all the teeth one would need six implants for the upper jaw and either four or six for the lower jaw.
In order to have the implants, one has to undergo at least one surgery. Your jaws have to be strong to support the implants and also have healthy gums. Some best dentists in mexico will prefer not inserting them if one is a smoker for it can affect the outcome of the treatment. For those who have undergone radiotherapy implants are less likely to be successful to them. Implants are not offered to those taking medicines such as bisphosphonates which are used to treat bones. More research is been done to find out if conditions such as osteoporosis or diabetes can affect how implants work.
The best person to ask if implants are best suited for you is your dentist. If you decide to go on with the procedure, please make sure your dentist has completed training in placing of them. He or she should meet the standards and approval by the General Dentist Council. Do not be scared to ask your dentist of their experience in placing implants. It is important to know who is dealing with your teeth
More info at: http://www.samdental.org/