The influence of particle size and tooth brush stiffness on abrasion of dentine was determined by means of a brushing machine, using 1,000, 2,000, 5,000, and 10,000 strokes and 200 g tooth brush load. Tooth pastes with two particle sizes were used: 7 and 15 μm diameter for the CaCO3 and 8 and 13 μm for Al(OH)3 abrasive systems. Abrasion was measured by a surface profilometer system and expressed in mean depth. The results show that (1) abrasion was always linearly correlated to the number of strokes; (2) nearly independent of the tooth paste system the abrasion is roughly 1.4 × more severe for the medium than for the soft brush; (3) the abrasion rates (average thickness removed per stroke) prooved to be significantly (p < 0.05) different for all four tooth paste systems, and (4) larger particles lead to higher abrasion rates for both abrasive systems.

Keywords:
Abrasion, Abrasive, particle size, Dentifrice, Toothbrush
This content is only available via PDF.
© 1985 S. Karger AG, Basel
1985
Copyright / Drug Dosage / Disclaimer
Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher.
Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug.
Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.
You do not currently have access to this content.