A study of Decim's Denzir coping shows superior strength

The in-vitro study of veneered Denzir copings (containing an inner
construction made of yttria-oxide-stabilized zirconia with a veneering
ceramic) performed by Prof. Heinrich Kappert, University of Freiburg,
Germany, confirms all expectations.

The study is made at the request of Vita Zahnfabrik and Decim and it
includes strength and heating tests. Preliminary results show that a
dental crown with the combination of a Decim System-manufactured Denzir
coping with VITA veneering ceramic Vitadur D is superior to other ceramic
crowns on the market.

The study shows that the Denzir coping remains intact when the crown is
exposed to an increase of pressure finally resulting in fracture of the
veenering ceramic.

Good news. The result indicates that the veneered Denzir coping, with its
strength and aesthetics, could replace the conventional metal copings most
frequently used today. In addition the patient is provided with a product
with high biocompatibility.

We are planning to release the final results of the study later this
spring, says Anders Sundh, dentist and director of scientific research at
Decim.

The global potential for crowns is estimated to be 12 billion SEK. The
segment of full ceramic crowns is growing at the expense of conventional
metal ceramic alternatives (i.e. gold alloys and titanium). Decim will
launch the veneered Denzir coping on the Scandinavian market on March 1,
2000. The Decim product line now includes copings and inlays in Denzir and
inlays in ProCAD.

Skellefteå February 21 2000

Decim AB

Jan Würtz
President

For further information please contact:

Jan Würtz, President Phone+46(0)910-546 00
Mobile +46(0)70-592 56 70

Anders Sundh, Director Scientific Research
Phone +46(0)910-546 00
Mobile +46(0)70-591 23 07

www.decim.com