Dentosphere : World of Dentistry

# Space maintainers are usually needed in the: A. Mandibular primary incisor teeth area B. Mandibular primary canine teeth area C. Mandibular primary second molar area D. Maxillary primary incisor area # The term space maintenance refers to: A. the preservation of space for a permanent tooth in a child's mouth B. the preservation of total arch length or of all the permanent teeth in the arch in a child's mouth C. the preservation of mesial drift after the loss of a tooth D. none of the above

Due  to  widespread  screening services  more and more cases of the dreadful cancer are being recorded. Cancer represents Australia’s greatest disease burden, ahead of cardiovascular disease. Cancer is a disease associated with ageing. With the number of people aged over 65 years set to double by 2051, cancer incidence is projected to continue rising. (Ref : 1) Current evidence indicates that approximately one-third of cancer deaths in Australia can be attributed to known and avoidable risk factors. Appropriate prevention strategies have the potential to reduce cancer incidence.

# Obturation of a root canal should achieve: A. Tug back B. Hermetic seal C. Fluid free seal D. All of the above # The purpose of a root canal sealer is to: A. seal the tubules of the dentine B. stimulate healing in periapical region C. prevent discoloration D. fill the space between solid core material and pulp canal walls

# The treatment of acute periapical abscess is: A. Endodontic therapy or extraction B. Incision and drainage only C. Pulp capping D. None of the above # Internal resorption in a tooth is seen as: A. Ca(OH)2 pulpotomy B. Replacement resorption C. Non-proliferating lesion D. Desensitizing tooth # The initial pulpal response to any insult is: A. Necrosis B. Ulceration C. Calcification D. Inflammation # Patient reports with severe throbbing pain in relation to mandibular second molar. The tooth is sensitive to both hot and cold food and elicits a painful response on percussion. What would be your treatment of choice? A. Incision and drainage of periapical area B. Endodontic therapy C. Indirect pulp capping D. Partial pulpectomy # The most important aspect of emergency treatment for an acute apical abscess is to: A. Produce sedation B. Obturation C. Establish drainage ...

# What percentage of mandibular first molars have two distal canals? A. 10 % B. 30 % C. 60 % D. 75 % # Two canals are most often seen in the: A. Maxillary canine B. Mandibular canine C. Maxillary lateral incisors D. Mandibular first premolar

# All of the following are contraindications for root planing except: A. deficient or overhanging margins of amalgam restorations B. erosion and/or abrasion C. recession D. root caries # While sharpening curettes and sickles, the internal angle of ________ must be preserved between the face and lateral surface. A. 50-60 B. 60-70 C. 70-80 D. 80-90

Though we all are aware of the fact that prevention is better and cheaper than cure and it is prudent to take preventive measures in health care rather than curing once we are afflicted by the disease, we seldom apply that in our practice. It is good to see that people are oriented more towards preventive measures and have started to get regular health check up and dental check ups these days. Even the children are getting more care than they used to get in the past, may be because of awareness, availability of health care facilities, or rise in the economic standard of the households. People may not have idea about how they should take care of their child's teeth even if they are willing to. This short article attempts to address the concerns of such parents. 1. When should the first dental visit be? This is a common question people are unsure about. When should they take their children to the dentist ? The first dental visit should be at around the time of eruption of first ...

# Which of the following are most sensitive to X ray? A. Tooth buds and salivary glands B. Nerve and muscle tissue C. Hair and nails D. Cartilage # The most radiosensitive cells in the body are: A. Endothelial cells B. Epithelial cells C. Red blood cells D. White blood cells

# A thin bluish line around the gingival margin is due to the absorption of: A. Silver B. Mercury C. Drugs like Tetracycline D. Lead # McCall's festoons are: A. also called Stillman's clefts B. due to poor oral hygiene C. Congenital abnormality D. Due to trauma from occlusion

Administration of fluid by any root other than the alimentary canal (per oral) i.e. intravenous, intramuscular, subcutaneous or into bone marrow is called Parenteral Fluid Therapy. Intravenous route is by far the most common method for parenteral fluid therapy. Mostly, the median cubital vein in the cubital fossa is used for venepuncture. Important Solutions commonly used: # 5% Dextrose 

# The predominant cell type in gingival crevicular fluid is the: A. Mast cell B. Plasma cell C. Macrophage D. Polymorphonuclear leukocyte # Gingival crevicular fluid is measured using: A. Whatman's filter paper B. pH paper C. Mylar strip D. Litmus paper

Retainer: The part of Fixed Partial Denture which unites the abutment to the remainder of restoration. Major retainers are those retainers which cover the entire occluding surface of the tooth. Eg. Full veneer crowns, partial veneer crowns. Minor retainers are small metallic extensions which are cemented on the tooth. Eg. Inlays, Onlays.

# The zinc oxide eugenol impression pastes harden by : A. Chemical reaction B. Cold C. Heat D. Pressure # Fourth state of matter is: A. Solid B. Liquid C. Gas D. Colloid

Parikrama Students' Family  presents with you all a new version of our most successful and most awaited grand program Symposium cum Talk Show - III - Exploring New Frontiers Of Collaboration: Medicine And Humanities on 17th and 18th November 2017. It will indeed be a great program rife with motivation, philosophy and human emotions in relation to science and medicine. We will welcome a horde of eminent speakers whose thought provoking presentation will instigate a fire within us. We shall be having a face to face interaction with: 1. Madan Krishna Shrestha , Actor, Philanthropist 2. Mr. Sunil Pokharel , Theater Artist, Founder - Gurukul 3. Binod Chaudhary , Business Tycoon, Industrialist, Philanthropist, President - Chaudhary Group 4. Prof. Dr. Shekhar Koirala , 1st Vice Chancellor of   BPKIHS 5. Lalbabu Pandit , Former Minister, Writer 6. Uttam Sanjel , Founder  Samata Foundation , Philanthropist 7. Rajesh KC , Cartoonist, Journalist, Founder - Ph...

Osteoradionecrosis of Jaw Bones It is also known as Radiation Osteomyelitis.  It is known as the most serious, late complication of therapeutic radiotherapy (RT) for head and neck (H and N) cancer, as it produces considerable morbidity.

# Stippling is seen on: A. Marginal gingiva B. Attached gingiva C. Interdental gingiva D. None of the above # With the increase in age, keratinization of the gingiva: A. increases B. decreases C. remains the same D. increases and then decreases

# Coagulative necrosis is: A. Characteristic of focal bacterial infections B. Characteristic of hypoxic death C. Characterized by loss of tissue architecture D. None of the above # Dystrophic calcification are calcifications seen in: A. Skin layers B. Salivary glands C. Normal tissues D. Dead Tissue

NOTE: If you cannot find any books here in the list below, You can search yourself in the Library Genesis Website Database.  DISCLAIMER: We do not store any of these books in our database and these links provided may subject to change. We are simply redirecting you to the website that serves free download of these books. We'll not be held responsible for any damages incurred by the publishers and writers. Please contact us (Email to: dentosphere.worldofdentistry@gmail.com) immediately if some links are not working.  Please Click the Link of the book you would like to download , and click GET for downloading the file. First Year # Gray's anatomy for students - Fourth Edition # Textbook of Microbiology and Immunology - second edition # Essentials of Medical Pharmacology - KD Tripathi - 8th Edition # Essentials of Medical Biochemistry, Second Edition: With Clinical Cases # Guyton and Hall Textbook of Medical Physiology -14th edition 2020 # Textbook of patholog...

There are nine different types of  Glass Ionomer Cements (GIC) based on their application. We should know which particular type of GIC we are supposed to use for what purpose. The different types of GIC are: Type I – Luting Type II - Restorative Type III - Base / Liner Type IV – Pit and Fissure Sealants Type V – Luting for Orthodontic purposes Type VI – Core Buildup material Type VII – High Fluoride releasing command set Type VIII – (ART) Atraumatic restorative treatment Type IX – Pediatric Glass Ionomer Cement This can easily be memorized by the Mnemonics : @ Little Rest B etween Fussy Orthodontic C lasses Flourish es ART istic Children. Type I – L uting Type II - Rest orative Type III - B ase / Liner Type IV – Pit and Fissure Sealants Type V – Luting for Orthodontic purposes Type VI – C ore Buildup material Type VII – High Fluoride releasing command set Type VIII – (ART) Atraumatic restorative treatment Type IX – Pediatric Glass Ionomer Ceme...

# Trismus associated with infection of lateral pharyngeal space is related to irritation of the: A. Buccinator B. Masseter C. Lateral pterygoid D. Medial pterygoid # Garre's osteomyelitis is: A. Chronic focal sclerosis and non suppurative osteomyelitis B. Chronic focal sclerosis and suppurative osteomyelitis C. Characterized by suppuration and acute pain D. Chronic diffuse sclerosing osteomyelitis

# Which of the following is not a mandibular major connector? A. Lingual plate B. Lingual bar C. Lingual arch D. Labial bar # The function of minor connector is: A. Connects major connector to all the components of RPD B. Prevents gingival displacement of the RPD C. Allows a single path of placement of the RPD D. It is that unit of RPD to which all other parts are directly or indirectly attached

# Which of the following local anesthetic agent would be preferred in prolonged surgical procedure? A. Bupivacaine B. Cocaine C. Lignocaine D. Prilocaine # Which of the following is not a theory for local anesthetic action? A. Membrane expansion theory B. Calcium displacement theory C. Electrical potential theory D. Specific receptor theory E. None of the above

Equality, Justice and Equity The worst form of inequality is to try to make unequal things equal.  (Aristotle) Justice cannot be for one side alone but must be for both.   (Eleanor Roosevelt) Ethics and equity and the principles of justice do not change with the calendar.  (DH Lawrence) The genesis of equality and equity as a concept of social justice arose from a history of evolving philosophies of societal organization and distribution of human rights, responsibilities and services.  The principles of equity and equality are always relevant in the context of distributive justice as well as variety of social justice issues. These principles all appeal the idea that fair treatment is a matter of giving people what they deserve. In general, people deserve to be rewarded for their effort and productivity, punished for their transgressions, treated as equal persons, and have their basic needs met. However, because these principles may come into conf...

# A blue nodular mass on the lateral border of the tongue is soft, smooth and blanches upon pressure. It is most likely to be: A. Lymphoma B. Hemangioma C. Epulis Fissuratum D. Epithelioma # Leutic glossitis can occur in connection with: A. Vitamin B deficiency B. Vitamin C deficiency C. Iron deficiency D. Syphilis

# Cretinism or dwarfism is caused due to hyposecretion of: A. Pituitary gland B. Thyroid gland C. Adrenal gland D. Thymus gland # Islet of Langherhans is a part of: A. Ductless part of Pancreas B. Exocrine part of Pancreas C. Gonads D. Pituitary

# Immunological function of blood is due to: A. Monocytes B. Lymphocytes C. Acidophils D. Neutrophils # Blood constitutes how much percent of body part ? A. 15 % B. 20 % C. 65 % D. 8 %

# Of the following four bacterial species, which is least likely to be found in plaque ? A. Actinomyces viscosus B. Streptococcus mutans C. Streptococcus salivarius D. Streptococcus sanguis # The common etiology of periodontitis is: A. Occlusal trauma B. Systemic factors C. Local irritating factors D. Hormonal defects # Predominant bacteria found in two days old plaque is: A. Streptococci B. Bacteroides C. Spirochaetes D. Actinomyces # In deep older plaque : A. Streptococci and Actinomyces are replaced by rod-like organism B. Streptococci are completely replaced by Neisseria C. Streptococci, Actinomyces and Veilonella remain prominent D. Actinomyces are completely replaced by Streptococci # Actinobacillus actinomycetemcomitans is commonly associated with: A. Juvenile periodontitis B. Adult periodontitis C. Refractory periodontitis D. All of the above #...