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Title: Comparative analysis of all-ceramic crown systems on the basis of mechanical and structural tests of prosthetic crowns

Abstract:

The aim of the research was the valuation of three different allceramic systems on the basis of their morphological tests, elemental composition, microhardness, tibological properties, marginal fit and mechanical properties of crowns made of these materials. The following materials were chosen for the test : IPS Empress 2, In Ceram and Procera, out of which 141 samples were made. To make the samples the following techniques were used: for IPS Empress 2 samples – pressing technique, for InCeram samples – infusion technique and CAD/CAM technique for Procera system. Microhardness tests showed the highest values for Procera crowns amounting to μHV100 = 616, lower for InCeram porcelain μHV100= 592 and the lowest for IPS Empress 2 –μ HV100 = 547. During tension tests it has been discovered that Procera samples showed the greatest mean load resistance – the values were twice the values of the other two systems. The average failure load for the Procera samples was 2660,94 N. In microscopic tests of marginal fit the following results were obtained : for Procera crowns the value was 59,6025 μm, for Empress 2 – 79,45μm, and for InCeram – 103,85 μm. The joint analysis of all the technical parameters leads to the following general conclusion for clinical application : the crowns prepared in all three techniques (pressing, infusion, and CAD/CAM technique) using all three systems (Procera, InCeram and IPS Empress 2) all fulfill clinical requirements to an equal degree to be used in all segments of the teeth ridge.

Level of degree:

2 - studia doktoranckie

Degree discipline:

stomatologia

Degree grantor:

Wydział Lekarski

Promoter:

Stanisław Majewski

Date issued:

2006

Format:

application/pdf

Identifier:

oai:dl.cm-uj.krakow.pl:1100

Call number:

ZB-105379

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Access rights:

tylko w bibliotece

Location of original object:

Biblioteka Medyczna Uniwersytetu Jagiellońskiego - Collegium Medicum

Object collections:

Last modified:

Feb 12, 2020

In our library since:

Nov 21, 2012

Number of object content hits:

4

Number of object content views in PDF format

4

All available object's versions:

http://dl.cm-uj.krakow.pl:8080/publication/1100

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ZB-105379 Feb 12, 2020
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