Dental Prosthesis

Camila J., Carina L., Carla B., Clara M., Samantha C.

Year 8D Science Matsui D.H.

Introduction

Dental prosthesis is an artificial replacement of one or more teeth.

There are many types of prosthesis. They can be fixed or removable.

History of Dental ProsthesisMayan Mayan CivilzationCivilzation

First marks of dental First marks of dental implantsimplants

19511951 Studies about healing process in bones, commanded by Studies about healing process in bones, commanded by Doctor Branemark, an orthopedic. While he was Doctor Branemark, an orthopedic. While he was researching, a tetanium metalic cilinder was screwed researching, a tetanium metalic cilinder was screwed into a thight bone of one of the animals in the into a thight bone of one of the animals in the experiment. After a while of studying, he found out that experiment. After a while of studying, he found out that titaniun screws could serve as bone anchors for teeth. titaniun screws could serve as bone anchors for teeth.

First tested dental prosthesis made of First tested dental prosthesis made of titanium. It was made by Dr. titanium. It was made by Dr. Branemark. Branemark.

19651965

History of Dental ProsthesisDr. Branemark first published his studies, and people Dr. Branemark first published his studies, and people started trustig more dental prosthesis. This is when started trustig more dental prosthesis. This is when 90% of confirmed dental implants were succesfull. 90% of confirmed dental implants were succesfull.

19811981

Since 1980 until nowadays, dental Since 1980 until nowadays, dental prosthesis keep getting better, with prosthesis keep getting better, with technologies to improve everything: technologies to improve everything: comfort, appearence, etc. comfort, appearence, etc.

Types: Crowns

When a tooth is damaged

or broken, the dentist places

a cap or a crown made

of resin on it, that gives back the

real appearence and function

of the tooth.

Type: Bridges

When more than one teeth are lost, the dentist will replace it with a bridge of resin teeth.

Some types of bridges may be removable.

Dental Implants

Dental implants are advised when one or several teeth are lost. They consist of metal anchors, usually titanium, placed in the jawbone.

Removable Prosthesis They are the least

expensive because they don´t require surgery. Also known as “dentadura” in Brazil. Nowadays its use is decreasing.

Pros of wearing fixed prosthesis It gives you a natural look and is very

functional. It is not as unstable as removable prosthesis. It feels better. It´s long lasting. They have the same strenght as normal

teeth.

Cons of wearing fixed prosthesis It is very expensive. It requires time for the surgery and for the

healing. It is very painful. The crown needs replacement from 10 to 15

years.

Composition

A typical prosthesis composition includes an acrylic polymeric powder in the form of small beads which is mixed by the dentist or prosthesis preparer with an acrylic monomer composition to form a paste.

Sources http://www.patentstorm.us/patents/4670480/descript

ion.html

http://www.aboutcosmeticdentistry.com/procedures/dental_implants/pros_and_cons.html

http://www.biology-online.org/dictionary/Dental_prosthesis

http://en.wikipedia.org/wiki/Dental_prosthesis http://www.drfankhauser.com/services.htm