Manual of Laboratory Testing Methods for Dental Restorative Materials. Paromita Mazumdar
117
123 118
124 119
125 120
126 121
127 122
128 123
129 124
130 125
131 126
132 127
133 128
134 129
135 130
136 131
137 132
138 133
139 134
140 135
141 136
142 137
143 138
144 139
145 140
Manual of Laboratory Testing Methods for Dental Restorative Materials
Dr Paromita Mazumdar and Dr Deepshikha Chowdhury
This edition first published 2021
© 2021 John Wiley & Sons Ltd
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, except as permitted by law. Advice on how to obtain permission to reuse material from this title is available at http://www.wiley.com/go/permissions.
The right of Paromita Mazumdar and Deepshikha Chowdhury to be identified as the authors of this work has been asserted in accordance with law.
Registered Offices John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, USA John Wiley & Sons Ltd, The Atrium, Southern Gate, Chichester, West Sussex, PO19 8SQ, UK
Editorial Office 9600 Garsington Road, Oxford, OX4 2DQ, UK
For details of our global editorial offices, customer services, and more information about Wiley products visit us at www.wiley.com.
Wiley also publishes its books in a variety of electronic formats and by print‐on‐demand. Some content that appears in standard print versions of this book may not be available in other formats.
Limit of Liability/Disclaimer of Warranty The contents of this work are intended to further general scientific research, understanding, and discussion only and are not intended and should not be relied upon as recommending or promoting scientific method, diagnosis, or treatment by physicians for any particular patient. In view of ongoing research, equipment modifications, changes in governmental regulations, and the constant flow of information relating to the use of medicines, equipment, and devices, the reader is urged to review and evaluate the information provided in the package insert or instructions for each medicine, equipment, or device for, among other things, any changes in the instructions or indication of usage and for added warnings and precautions. While the publisher and authors have used their best efforts in preparing this work, they make no representations or warranties with respect to the accuracy or completeness of the contents of this work and specifically disclaim all warranties, including without limitation any implied warranties of merchantability or fitness for a particular purpose. No warranty may be created or extended by sales representatives, written sales materials or promotional statements for this work. The fact that an organization, website, or product is referred to in this work as a citation and/or potential source of further information does not mean that the publisher and authors endorse the information or services the organization, website, or product may provide or recommendations it may make. This work is sold with the understanding that the publisher is not engaged in rendering professional services. The advice and strategies contained herein may not be suitable for your situation. You should consult with a specialist where appropriate. Further, readers should be aware that websites listed in this work may have changed or disappeared between when this work was written and when it is read. Neither the publisher nor authors shall be liable for any loss of profit or any other commercial damages, including but not limited to special, incidental, consequential, or other damages.
Library of Congress Cataloging‐in‐Publication Data
Names: Mazumdar, Paromita, author. | Chowdhury, Deepshikha, author.
Title: Manual of laboratory testing methods for dental restorative materials / Dr Paromita Mazumdar, Dr Deepshikha Chowdhury.
Description: First edition. | Hoboken, NJ : Wiley‐Blackwell, 2021. | Includes bibliographical references and index.
Identifiers: LCCN 2021015274 (print) | LCCN 2021015275 (ebook) | ISBN 9781119687993 (paperback) | ISBN 9781119688006 (adobe pdf) | ISBN 9781119688020 (epub)
Subjects: MESH: Dental Materials–standards | Dental Restoration, Permanent | Materials Testing | Biofilms
Classification: LCC RK652.5 (print) | LCC RK652.5 (ebook) | NLM WU 190 | DDC 617.6/95–dc23
LC record available at https://lccn.loc.gov/2021015274 LC ebook record available at https://lccn.loc.gov/2021015275
Cover Design: Wiley
Cover Images: © Deepshikha Chowdhury and Paromita Mazumdar
Preface
Throughout our academic life either as a student, or during our role play as a teacher, instructor or supervisor for dissertation or short study designing we always felt that there was a need of a manual describing the methods and techniques for laboratory methods when we embark on a bench study. This manual may be seen as an answer to our thoughts and rigours that we faced.
A number of dental materials are used in the oral cavity for various purpose which includes restorations, endodontic treatment, orthodontic applications, surgical, and prosthodontic treatment.
Many materials used in restorative dentistry are supplied as two or more components which are eventually mixed together and undergo a chemical reaction, during which the various properties may change dramatically. The set material may be a rigid solid or a flexible rubber depending upon the chemical nature of the product. The acceptance of such a product by the dentist depends upon the properties of the unmixed paste, the properties during mixing and setting and the properties of the set material. The properties of the set material can be conveniently divided into the following categories: mechanical properties, thermal properties, chemical properties, biological properties, and other physical properties.
As post graduate trainees, researchers and practitioners, there is a need of evidence‐based application of the materials. Post graduate trainees face the difficulty of not having a clear idea about the vastness of the course and the syllabus. Also, a certain amount of time is required to gain a familiarity to the course. A thesis or a dissertation is