ISO/TR 14569-1:2007

TECHNICAL ISO/TR
REPORT 14569-1
First edition
2007-05-15
Dental materials — Guidance on testing
of wear —
Part 1:
Wear by toothbrushing
Produits dentaires — Recommandations relatives aux essais de
résistance à l'usure —
Partie 1: Usure par brossage des dents

Reference number
©
ISO 2007
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ii ISO 2007 – All rights reserved

Foreword
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(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
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ISO/TR14569-1 was prepared by Technical Committee ISO/TC106, Dentistry, Subcommittee SC2,
Prosthodontic materials.
This first edition cancels and replaces ISO/TS 14569-1:1999, which has been technically revised.
ISO/TR 14569 consists of the following parts, under the general title Dental materials — Guidance on testing of
wear:
— Part 1: Wear by toothbrushing
— Part 2: Wear by two- and/or three body contact
©
ISO 2007 – All rights reserved iii

Introduction
It is well understood that the wear mechanisms in the mouth are very complex. In addition they may differ from
one individual to another. Therefore it appears impossible to reproduce these varying conditions in a single
wear test.
As a consequence, many wear tests have been proposed in dental science. Most of them consider mainly one
specific aspect of the different mechanisms, and some of them even claim to be able to characterize the wear
resistance of dental materials completely. However, these procedures are not really comparable because of the
different wear mechanisms considered, and the lack of a generally accepted test method.
It therefore makes sense to utilize laboratory tests, investigating the various wear aspects arising separately
under clinical conditions. They may determine wear, only for the clinical situation in which the same wear
mechanism dominates; but it might be possible to predict the complete clinical wear by a number of different test
methods.
In this part of ISO/TR 14569, wear by tooth brushing is considered. This is one aspect of the wear problem and
may only be important for materials exposed to tooth brushing, such as materials used on labial surfaces.
The intention of this part of ISO/TR 14569 is to define conditions for the various existing laboratory tests so that
they can deliver comparable results and can be used for at least a screening of different materials.
©
iv ISO 2007 – All rights reserved

TECHNICAL REPORT ISO/TR 14569-1:2007(E)
Dental materials — Guidance on testing of wear —
Part 1:
Wear by toothbrushing
1Scope
This part of ISO/TR 14569 provides guidelines for test methods for the assessment of resistance to wear by
tooth brushing for the following materials:
— materials used for the preparation of artificial teeth;
— veneering of crowns and bridges.
This part of ISO/TR 14569 does not cover phenomena such as the marginal degradation and loss of substance
by chemical processes, swelling, splintering of edges or wear from contact with the antagonist.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced document
(including any amendments) applies.
ISO
...