The steps in the preparation and construction of an amalgam restoration are as follows;

  * all of the decay must be removed.

* The tooth is prepared so all weakened tooth structure is  removed.

 * A soundly engineered pattern must be cut in the tooth so it    will hold  the filling
strongly and minimize the possibility of future decay on the remaining tooth surfaces.

  * The filling is then placed very carefully into the tooth 
     carved and shaped into its proper form and contours.

A properly, well placed amalgam filling will last for years under good oral hygiene
conditions and a poorly placed filling will usually fail sooner than later.

The so called ” FILLING” is the most common dental restorative procedure.
Many materials have been used to make fillings including gold, plastics,composites (white
filling materials),porcelains and amalgam alloys.

The Dental Profession does not have an ideal restorative material yet because a perfect
filling material must have many important qualities such as:

* esthetically pleasing to the eye.
* readily manipulated into the oral cavity
* non-toxic
* resistant to abrasion
* chemically stable in the oral fluids
* adequate crushing strength and edge strength
* Should not have any flow qualities
* should not conduct temperature changes or electric impulses
* Should have a favorable coefficient of expansion equal to enamel and dentin
* Must be insoluble in the oral fluids of the mouth

As you can see the criteria for a perfect dental filling material are many. The
silver amalgam filling material is still one of the most commonly used because
it satisfies most of the criteria referred too above.

Because silver fillings are not esthetic, they are not recommended for use in
the front teeth where eshetics is such a serious demand.

Silver fillings are composed of approximately 70 % silver, tin, copper, zinc and
mercury. It is still widely used because it is durable, strong and economical.

It is the best material for both strength and durability at a reasonable cost.

 My next blog will discuss the use of tooth coloured  composite resin filling
materials and how they stack up to amalgam .

Comments Are Closed!!!
Amazon Shop powered by Amazon Store Plugin for WordPress available via Themes Town