Cove Dental Engineering
Est 1958

What is Polycom 2000
How is it Different

Mercury Amalgam

Mercury Free Dental Inlays
Metal Free Crown and Bridge System

Cove Dental Engineering

58 Highfield Rd
GU14 0EB

Tel: 01252 543131

Private Laboratory Awards 2013

Short listed for
  • Best (Small) Dental Laboratory
  • Best Team
  • Most Innovative Laboratory


What is Polycom 2000

Polycom 2000 is a crown, bridge and inlay system that consists of a high quality composite bonded to an injection-moulded substructure of polyoxymethylene resin.

Polycom 2000 Crown image.

How is it Different

Where bonded porcelain to metal systems are used in bridge work, the abutment teeth are held in a fixed position as metal ceramics are rigid and don't allow flexing.
Polycom 2000 is kinder to abutment teeth in terms of flexibility and shock transference.
The lack of metal substructure results in superior aesthetics, with no greying of margins and as no porcelain is used, the problems with the leaching of metal oxides is susceptible patients are avoided.

Meet the Team



Team Images

What is it used for

With Polycom 2000 the composite is layered into the substructure formed under pressure thus avoiding the problems associated with shrinkage when curing composites in the mouth.
Polycom 2000 can generally be used in any procedure that would normally involve the use of metal ceramics.

Why was it developed

Polycom 2000 was developed at the request of the late Dr John Lane of Banstead Surrey.
he was one of a growing number of dentists who are becoming concerned about the use of metals in the mouth, and their interaction between each other and with amalgam fillings.
This can lead to electrolytic corrosion of metal parts, metallic tastes, and the release of metallic compounds causing sensitisation and exacerbating the problems of mercury release from amalgam fillings.

Mercury / Amalgam

Polycom 2000 was initially developed for crown and bridge work and not as a restorative / filling material although it does lend itself well to aesthetic inlays.
It was while researching this particular aspect that I became aware of the dangers of mercury toxicity with regard to amalgam fillings.
Amalgam should really be called Mercury Amalgam. The mixture contains between 50% and 70% mercury, one of the most toxic metals known to man.
Vapour is given off every time it is compressed.
When mercury amalgam is present along with other metals such as gold, chrome or non-precious metals, electrolytic corrosion takes place resulting in the liberation of metallic compunds including mercury.
In a USA university toxicology chart, on a scale of 0 to 2000 :-
Nickel is 600 , Lead is 900 , Mercury is 1600 and Plutonium is 1900. Mercury is nearer Plutonium than Lead in Toxicity. Lead is banned in paint, petrol and water pipes yet mercury is still placed in the mouth!
The dangers of mercury are known, dentists are advised not to use mercury amalgam in certain categories of people: children, pregnant women, hypersensitive people and other groups, and if used the patient must be told of the dangers.
140 countries of the United Nations have signed the Minamata Convention to ban the use of Mercury by 2020.

Advantages and Acknowledgements

No Shrinkage

Metal Free
All Materials CE Approved
No Greying at Margin
The System Includes All VITA Shades


Mr M Powell
Mr R Constable
Mr W Powell

Patent No: GB2359757

Polycom 2000 Crown images.

Polycom 2000 Veneer images.

Polycom 2000 images.

Polycom 2000 images.

Polycom 2000 images.

Gold Plated Chrome Cobalt.

Showing the corrosion from a number of Mercury / Amalgam fillings.

Polycom 2000 Crown images.