Handbook for Microbiology Practice in Oral and Maxillofacial Diagnosis: A Study Guide to Laboratory Techniques in Oral Microbiology
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Arvind Babu RS
Dr. Arvind Babu Rajendra Santosh is an Indian national who pursued his undergraduate education at the Rajiv Gandhi University of Health Sciences, Karnataka, India from where he graduated with a degree in Bachelor of Dental Surgery, which he completed in 2007. Dr. Babu was employed by the Vydehi Institute of Dental Sciences and Research Center in the department of Operative dentistry and Endodontics for one academic year. He then entered the Dr. N.T.R. University of Health Sciences, Andhra Pradesh, India to pursue his post graduation in Master of Dental Surgery degree in the subject Oral and Maxillofacial Pathology and Microbiology which he completed in 2012. Dr. Babu was employed to the C.K.S. Theja Institute of Dental Sciences and Research in the department of Oral and Maxillofacial Pathology and Microbiology. He then joined the Faculty of Medical Sciences – Dental Programme, The University of the West Indies – Mona on February 1, 2013. He has been taken duties of teaching and research co-ordinator. His teaching area includes Oral pathology and Microbiology, Forensic Dentistry, Oral Histology and Oral embryology. His particular interest in dentistry lies in research in Oral cancer, Auto immune disease, Oral Microbiology and Forensic dentistry. He published papers in peer reviewed indexed journals . He has presented scientific paper and posters in dental and specialty conferences. He is a member of the International Association of Dental Research, International Association of Oral Pathology, Indian Association of Oral and Maxillofacial Pathologists, Indian Association of Forensic Odontologists and Indian Dental Association.
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Handbook for Microbiology Practice in Oral and Maxillofacial Diagnosis - Arvind Babu RS
HANDBOOK FOR MICROBIOLOGY PRACTICE IN
ORAL AND MAXILLOFACIAL DIAGNOSIS
A STUDY GUIDE TO LABORATORY
TECHNIQUES IN ORAL MICROBIOLOGY
Copyright © 2014 Arvind Babu RS.
All rights reserved. No part of this book may be used or reproduced by any means, graphic, electronic, or mechanical, including photocopying, recording, taping or by any information storage retrieval system without the written permission of the publisher except in the case of brief quotations embodied in critical articles and reviews.
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ISBN: 978-1-4917-2869-7 (sc)
ISBN: 978-1-4917-2870-3 (e)
Library of Congress Control Number: 2014905633
iUniverse rev. date: 7/27/2015
CONTENTS
1. Introduction
2. Classification Of Microbes
3. Staining, Morphology, Anatomy Of Bacteria
4. Ph Measurements, Buffer, Oxidation—Reduction Potential.
5. Culture Media
6. Microbial Nutrition
7. Centrifuge, Colorimeter, Bacterial Count.
8. Immunological And Serological Methods In Microbiology
9. Identification, Morphology, Staining, Species Variation And Laboratory Diagnosis Of Bacteria:
10. Identification, Morphology, Staining, Species Variation And Laboratory Diagnosis Of Fungi
11. Identification And Laboratory Diagnosis Of Virus
12. Antibiotic Susceptibility Test
13. Organization Of The Clinical Laboratory
This work is dedicated to the noblest profession of
Dentistry and Oral Pathology and Microbiology,
Patients, in whose absence; we would never understand
the cause and nature of disease and teachers,
beloved parents, wife, colleagues and seniors.
PREFACE
Oral Microbiology is a study of microbial diseases of oral cavity. For the depth and precision of knowledge to this noble field, it can be divided in to clinical and practical aspects of microbiology. Oral microbiology denotes the congregation of basic medical sciences and practising dentistry. The most common oral microbial disease and present ever since olden days of earth is dental caries. Also, there are many microbiological diseases that affect the oral cavity. Often there are diverse list of microbes that can target the oral tissues. These microbial diseases can cause potential tissue damage; or majority of time it leads to compromised oral health; also some times it can escort to death. There is available number of literatures over the microbial diseases. But, the state of morbidity and mortality factors associated with these microbial diseases leaves an important and special enlightenment of oral microbiology in terms of diagnostic procedures are needed. Since it has no technique of its own, comprehension of this special field has to be drawn and adapted from the disciplines of medical microbiology. The context of bringing this book is an attempt to get an attention towards diagnostic procedure and laboratory techniques that are emphasized over the oral microbiological practice. This text book tried an initial attempt to bring the practical knowledge microbiological techniques in the context of dental diagnostician. Besides, if there are any errors in the textual content, it is advised to reader to bring it to authors notice to make the corrections in the future editions.
Dr. Arvind Babu RS., B.D.S., M.D.S., D.F.O.,
Oral and Maxillofacial Pathologist and Microbiologist
Lecturer and Research Coordinator,
Faculty of Medical Sciences—Dentistry Programme,
The University of West Indies, Mona campus,
Kingston—7, Jamaica.
1
INTRODUCTION
Medical Microbiology:
Study of microbes that infects humans, the disease they cause, their diagnosis, prevention and treatment. It also deals with response of human, host to microbial and other antigens.
Varo and Columella (1st Century) suggested that disease caused by invisible beings called animal minuta, which is from the inhaled / ingested particles.
Fra castorius of Verona 1546, suggested that contagium vivum caused the possible infection.
Von ptenciz 1762, suggested each disease was caused by separate agents.
Kircher 1659, reported minute worms in blood of plague victims.
Antony von Leuwenhoek first observed and reported the bacteria. He is a draper (Clothing) in delft Holland, he had hobby of grinding lenses and observed some diverse materials through them. He made accurate description of various types of bacteria and communicated to ROYAL SOCIETY of LONDON.
Leuwenhoek termed the world of little animal cules.
Later 2 centuries the importance of animal cules came in medicine and biology as a whole came to be recognized.
Augustino Bassi 1835, showed the fungus in muscardine disease of silkworms.
Davaome and Pollander 1850, observed anthrx bacilli in the blood of animals dying in disease.
Oliver Wendell holmes (1843) suggested that puerpal contagious.
Semmel wein identified mode of transmission by doctors and medical students, attending women in labour in hospital and he had prevented it by the simple measure of wasting hands in antiseptic solutions.
Louis Pasteur in 1822-95, studied on fermentation, also suggested different types of fermentation with different micro organisms.
Needham Irish priest 1745, contradicted Louis pastuer, and suggested that microbes generation by putrescible fluid.
Pasteur introduced techniques of sterilization and developed steam sterilizer, hot air oven and auto clave.
Pasteur started studies on pebrine, anthrax, chicken pox, cholera and Hydrophobia.
—An accidental finding that chicken cholera bacillus cultures left on bench for several weeks lost their pathogenic property, but retained their ability to protect the birds against subsequent infection by attenuation.
—He attenuated cultures of anthrax bacillus by incubation at high temperature 42-43°C and proved this gives specific protection against anthrax.
—Pasteur coined the term vaccine, for his first preparation for cow pox.
Lister 1867, step from Pasteur work, introduced aspectic technique in surgery, and there was drop in mortality and morbidity due to surgical sepsis.
He used carbolic acid, actually cumber some and hazardous. It was milestone in evolution of surgical practice from the era of laudable pus to modern septic technique.
PASTEUR LAID FOUNDATION OF MICROBIOLOGY.
Robert Koch 1843-1910.
Cultured and studied life cycle of anthrax.
Introduced staining technique and methods of obtaining bacteria in pure culture using solid media.
Discovered the bacillus of tuberculosis (1882) and cholera Vibrio.
Hansen 1874—leprosy bacillus.
Niesser 1879—gonococcus.
Ogsion 1881—staphylococcus.
Loeffler 1884—diphtheria bacillus
Nicoler 1884—tetanus bacilli.
Frankel 1886—pneumococcus.
Schauddin and Hoffman 1905—syphilis.
Roux and yersin : mechanism of pathogens in diphtheria by toxin and suggested toxins neutralized by anti toxins.
Ehrlich studied toxins and Antitoxins laid foundation for biological standarisation.
Like wise slowly, causative agents of various different disease was reported by different investigation, it was necessary to introduce criteria for proving and Claim that microorganism in pathogenicity.
These criteria was actually introduced by Henle, and enunciated by Koch called as Koch’s postulates:
1. Bacterium should be constantly associated with the lesion of disease.
2. It should be possible to isolate the bacterium in pure culture fro the lesion.
3. Inoculation of such pure culture in to suitable laboratory animals should reproduce the lesions of disease.
4.