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Pathology (With Explanatory Answers) N 0 ‘ndentjl oth r T if. , f i dffirjl booltv VlfH Ovf wrtvrf www^iypwb^ * ru '5 *fLUw InfofinflfiOfi 0* boda f xJfe MCQs in Oral Pathology (With Explanatory Answers) n 0 Sundeep S liliug ath ^ ' ft Dr ( t d i NR Ahuja ' r.M.p MCQs in ORAL PATHOLOGY MCQs in ORAL PATHoLoGY (With Explanatory Answers) Sundeep S Bhagwath MDS (Oral Pathology) Professor (Oral Pathology) and Head Department of Basic Sciences College of Dentistry University of Ha’il Kingdom of Saudi Arabia Foreword Dr (Col) NK Ahuja The Health Sciences Publisher New Delhi | London | Philadelphia | Panama Jaypee Brothers Medical Publishers (P) Ltd. Headquarters Jaypee Brothers Medical Publishers (P) Ltd. 4838/24, Ansari Road, Daryaganj New Delhi 110 002, India Phone: +91-11-43574357 Fax: +91-11-43574314 E-mail: [email protected] Overseas Offices J.P. Medical Ltd. Jaypee-Highlights Medical Publishers Inc. 83, Victoria Street, London City of Knowledge, Bld. 237, Clayton SW1H 0HW (UK) Panama City, Panama Phone: +44-20 3170 8910 Phone: +1 507-301-0496 Fax: +44(0) 20 3008 6180 Fax: +1 507-301-0499 E-mail: [email protected] E-mail: [email protected] Jaypee Medical Inc. Jaypee Brothers Medical Publishers (P) Ltd. 325, Chestnut Street 17/1-B, Babar Road, Block-B, Shaymali Suite 412 Mohammadpur, Dhaka-1207 Philadelphia, PA 19106, USA Bangladesh Phone: +1 267-519-9789 Mobile: +08801912003485 E-mail: [email protected] E-mail: [email protected] Jaypee Brothers Medical Publishers (P) Ltd. Bhotahity, Kathmandu, Nepal Phone: +977-9741283608 E-mail: [email protected] Website: www.jaypeebrothers.com Website: www.jaypeedigital.com © 2016, Jaypee Brothers Medical Publishers The views and opinions expressed in this book are solely those of the original contributor(s)/author(s) and do not necessarily represent those of editor(s) of the book. All rights reserved. No part of this publication may be reproduced, stored or transmitted in any form or by any means, electronic, mechanical, photo­copying, recording or otherwise, without the prior permission in writing of the publishers. All brand names and product names used in this book are trade names, service marks, trademarks or registered trademarks of their respective owners. The publisher is not associated with any product or vendor mentioned in this book. Medical knowledge and practice change constantly. This book is designed to provide accurate, authoritative information about the subject matter in question. However, readers are advised to check the most current information available on procedures included and check information from the manufacturer of each product to be administered, to verify the recommended dose, formula, method and duration of administration, adverse effects and contra­indications. It is the responsibility of the practitioner to take all appropriate safety precautions. Neither the publisher nor the author(s)/editor(s) assume any liability for any injury and/or damage to persons or property arising from or related to use of material in this book. This book is sold on the understanding that the publisher is not engaged in providing professional medical services. If such advice or services are required, the services of a competent medical professional should be sought. Every effort has been made where necessary to contact holders of copyright to obtain permission to reproduce copyright material. If any has been inadvertently overlooked, the publisher will be pleased to make the necessary arrangements at the first opportunity. Inquiries for bulk sales may be solicited at: [email protected] MCQs in Oral Pathology (With Explanatory Answers) First Edition: 2016 ISBN: 978-93-85891-50-2 Printed at Dedicated to My wife, Vani, for being such a wonderful source of strength and my two lovely daughters, Damini and Dhhriti, for their overwhelming love and affections Foreword Multiple choice questions (MCQs) tests are the preferred format for accurate and comprehensive assessment of students’ ability to think objectively and critically. Apart from postgraduate entrance examinations, they have also become an integral part of undergraduate examinations with most universities amalgamating them along with other longer forms of assessment. Hence, it is imperative that undergraduate students acquire the skills to solve the MCQs, which will be beneficial to them not only for success in undergraduate examinations but also for the postgraduate entrance examinations­ later on. It gives me great pleasure to state that Dr Sundeep S Bhagwath has taken great interest and pains to bring out this resource for the benefit of students. I have no hesitation in recommending this book for the students as it covers all the topics in the subject of oral pathology and also has explanatory answers to aid the students in better understanding of the topics. I hope that students find this resource beneficial and wish the author all the success in this and all other such endeavors. Dr (Col) NK Ahuja Professor Emeritus Swami Vivekanand Subharti University, Meerut Director General Kalka Group of Institutions Meerut, Uttar Pradesh, India Preface I felt that there is a need for a book on multiple choice questions (MCQs) for the undergraduate dental students. MCQs have become the format of choice for most of the competitive entrance examinations worldwide. MCQs are also an integral part of undergraduate examinations in medical subjects. The reason they are favored is, due to the fact that, they are easy to evaluate and accurately assess the objective thinking of the candidates. This book is designed to cater to the needs of undergraduate dental students undergoing a study in the subject of oral and maxillofacial patho­logy. It includes all the pertinent areas covered under this subject and attempts to inculcate in the students an endeavor to explore the horizons of this subject. The questions have been framed keeping in mind particularly the undergraduate dental students as not many such resources are available to them. I hope that the students make full use of this resource. In case of any factual errors, the mistake is entirely from my side and I shall be more than glad to entertain queries and criticisms at [email protected]. Sundeep S Bhagwath Acknowledgments No endeavor can be successful without active cooperation, support and encouragement from colleagues, friends, family and the benevolence of the Almighty. This book would not have seen the light of the day without constant encouragement and moral support of my wife, Vani, who has always been there whenever I needed her and my two angels, Damini and Dhhriti, who sorely missed their father’s presence during the preparation of this manuscript. To my guide and mentor, Dr GS Kumar, I owe my professional standing. To him, I render my special thanks. I am deeply indebted to my parents for inculcating sound values and for being such pillars of strength. My sincere thanks to M/s Jaypee Brothers Medical Publishers (P) Ltd, New Delhi, India, for giving me this opportunity and publishing the book. Contents 1. Developmental Anomalies of Orofacial Structures Including Teeth 1 2. Dental Caries 9 3. Diseases of Pulp and Periapical Tissues 17 4. Diseases of Periodontium 25 5. Infections: Bacterial, Viral and Mycotic 33 6. Spread of Oral Infections 40 7. Benign and Malignant Nonodontogenic Tumors of Oral Cavity 48 8. Odontogenic Cysts and Tumors 66 9. Diseases of Salivary Glands 85 10. Diseases of Osseous Structures 94 11. Diseases of Skin 102 12. Hematological Diseases 110 13. Diseases of Nerves and Muscles 118 14. Disorders of Metabolism 125 15. Healing of Oral Wounds 133 16. Physical and Chemical Injuries of Teeth 141 17. Regressive Changes of Oral Cavity 150 Developmental Anomalies of Orofacial 1 Structures Including Teeth 1. Which amongst the following is not a cause of acquired micrognathia? (a) Infection of mastoid (b) Trauma to TMJ (c) Infection of the middle ear (d) Infection of inner ear 2. Which amongst the following is not a clinical feature of micrognathia? (a) Steep mandibular angle (b) Severe retrusion of chin (c) Prominent chin button (d) Deficient chin button 3. Indicate the incorrect statement regarding macrognathia (a) It is commonly associated with Paget’s disease (b) Patients tend to have a short ramus (c) Excessive condylar growth predisposes to macrognathia (d) Patients have a prominent chin button 4. Facial hemiatrophy is not associated with which of the following conditions? (a) Bell’s palsy (b) Trigeminal neuralgia (c) Jacksonian epilepsy (d) Delayed eruption of teeth 5. Cleft of the primary palate occurs (a) Anterior to incisive foramen (b) Posterior to incisive foramen (c) Between lateral incisor and canine (d) Between canine and 1st premolar 2 MCQs in Oral Pathology 6. Minimal form of clefting of palate is seen in (a) Soft palate (b) Uvula (c) Hard palate and soft palate (d) Posterior to incisive foramen 7. Increased risk of development of squamous cell carcinoma is associated with which of the following developmental conditions? (a) Cheilitis granulomatosa (b) Heck’s disease (c) Cheilitis glandularis (d) Fibromatosis gingivae 8. If a patient has multiple intestinal polyps, cutaneous melanocytic macules, rectal prolapse and gynecomastia, he/she is probably suffering from (a) Gardner syndrome (b) Goltz-Gorlin syndrome (c) Peutz-Jeghers syndrome (d) Grinspan syndrome 9. Fordyce’s granules is heterotopic collection of _______ in oral cavity (a) Sweat glands (b) Salivary glands (c) Hair follicles (d) Sebaceous glands 10. Heck’s disease is caused by ________ virus (a) Herpes simplex (b) Human papilloma (c) Varicella zoster (d) Epstein-Barr 11. A well-circumscribed, soft, sessile, bilateral, nodular mass which is located lingual to mandibular canines between mucogingival junction and free gingiva could most likely be (a) Peripheral giant cell granuloma (b) Pyogenic granuloma (c) Retrocuspid papilla (d) Peripheral ossifying fibroma Developmental Anomalies of Orofacial Structures Including Teeth 3 12. Which amongst the following is not a cause of macroglossia? (a) Hemangioma (b) Lymphangioma (c) Down’s syndrome (d) Leukemia 13.
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