Name of the University : The Tamilnadu Dr. M.G.R. Medical University
Degree : MASTER OF DENTAL SURGERY (M.D.S)
BRANCH IV : ORAL PATHOLOGY
Subject Code/Name : 2415/Laboratory And Histopathological Techniques
Year : I
Document Type : Question Bank
Website : web.tnmgrmu.ac.in
Download Model/Sample Question Paper :
2007-2014 : https://www.pdfquestion.in/uploads/web.tnmgrmu.ac.in/Dental/3654-242423KU.pdf
Laboratory & Histopathological Techniques :
September 2008 :
[KT 374] Sub. Code: 2415
M.D.S. DEGREE EXAMINATION.
Related : TNMGRMU Oral Pathology, Micro Biology And Forensic Odontology MDS Question Bank : www.pdfquestion.in/3652.html
(Revised Regulations)
Branch IV : ORAL PATHOLOGY
(For Candidates admitted from 2004-2005 onwards)
Paper III – LABORATORY AND HISTOPATHOLOGICAL TECHNIQUES
Q.P. Code : 242415
Time : Three hours
Maximum : 100 marks
Draw suitable diagram wherever necessary. :
Answer ALL questions. :
I. Essay questions : (2 X 20 = 40)
1. Discuss on the various laboratory investigations that can be carried out for the diagnosis of herpetic infections.
2. Discuss on various stains used in the study of nucleic acids in a cell.
II. Write short notes on : (6 X 10 = 60)
1. In situ Hybridization method for detection of HPV.
2. Trichrome stains.
3. Ground sections.
4. Dark field microscope.
5. Stains for collagen.
6. ESR.
March 2009 :
I. Essay questions : (2 x 20 = 40)
1. Discuss available microscopes and the details of dark ground microscopy in oral microbiology.
2. Discuss on various stains available for connective tissue fibres and the theories of staining.
II. Write short notes on : (6 x 10 = 60)
1. Micro array technique.
2. Antigen retrieval in immunological staining.
3. Artifacts in the H&E stain – study.
4. Peripheral smear.
5. Investigations for bleeding gums.
6. Congo red.
March 2010 :
I. Essay questions : (2 x 20 = 40)
1. Discuss the uses and limitations of immuno histochemistry in histopathological diagnosis.
2. Discuss the value of special staining techniques as an aid to routine histopathoogic diagnosis.
II. Write short notes on : (6 x 10 = 60)
1. Flow cytometry.
2. ELISA.
3. Ploidy.
4. Nucleic acid stains.
5. Metachromasia.
6. Decalcifying agents.
September 2010 :
I. Essay questions : (2 x 20 = 40)
1. Discuss the theories of staining.
2. Processing of tissue for sectioning.
II. Write short notes on : (6 x 10 = 60)
1. DNA extraction.
2. RT-PCR.
3. WBC pipette.
4. Saliva as investigative tool.
5. Bleeding time.
6. DPX.
Sub. Code: 2423
Answer ALL questions in the same order. :
1. Polarizing Microscope
2. Nuclear fixatives
3. Artefacts in histopathology
4. Microtomy in histopathology
5. Western Blot
6. Enzymatic digestion techniques
7. Amyloid protein and its demonstration
8. Peripheral smear
9. Lab diagnosis of bleeding disorders
10.Buffers in tissue staining
Sub. Code: 2423
Answer ALL questions in the same order. :
1. Outline uses PAS stain in salivary gland tumors.
2.Grams stain.
3. Factors altering fixation.
4. Types of microtome.
5. Diagnostic uses of special stains.
6. Polarizing microscopy.
7. Decalcifying agents.
8. Photomicrography.
9. Nuclear stain for decalcified sections.
10. Basic panel of markers for lymphomas.
April 2012 :
(10×10=100)
1. Outline uses of fungal stains.
2.Giemsa stain.
3.Fixatives.
4. Semi-automatic microtome.
5. Laboratory investigation for Herpes virus.
6. Compound microscope.
7. Decalcification.
8.Metachromasia.
9.Embedding agents.
10. Basic panel of markers for undifferentiated tumor.
APRIL 2014 :
(10×10=100)
1.Fixatives.
2.Hematoxylin.
3. Laboratory diagnosis of HIV infection.
4. Flow cytometry.
5. Confocal microscopy.
6. Techniques in isolation and identification of Oral anaerobes.
7. Diagnostic aids in identifying Potentially malignant oral lesions.
8. Immunohistochemical methods.
9. Decalcification methods.
10. Papanicolau stain.
October 2014 :
1. Immunohistochemical methods.
2. Fixatives: Types and mode of action.
3. Karyotyping.
4. Proteomics and its scope in Oral pathology.
5. Discuss commonly used stains to diagnose oral bacterial infections.
6. Electron microscopy.
7. Laboratory diagnosis of fungal infection.
8. Oral cytology : Principle, commonly used stains and role in diagnosis.
9. Histological methods used to study bone.
10. Special stains and tumors of head and neck.
Etiopathogenesis Of Periodontal Diseases :
March 2009 :
Time : Three hours
Maximum : 100 marks
Answer ALL questions :
Draw suitable diagram wherever necessary :
I. Essay questions : (2 x 20 = 40)
1. Discuss the influence of diabetes mellitus on the periodontium.
2. Discuss the role of stress in periodontal disease.
II. Write short notes on : (6 x 10 = 60)
1. Parafunctional habits.
2. Gingipain.
3. Dental calculus.
4. Marsh hypothesis.
5. Plaque complex.
6. Lipoxins.
March 2010 :
Time : Three hours
Maximum : 100 marks
Answer ALL questions :
Draw suitable diagram wherever necessary :
I. Essay questions : (2 x 20 = 40)
1. Discuss the etiopathogenesis of pulpo – periodontal lesions.
2. Discuss oral and periodontal lesions associated with skin diseases.
II. Write short notes on : (6 x 10 = 60)
1. Periodontal abscess.
2. Primary trauma from occlusion.
3. Drugs in the pathogenesis of gingival over growth.
4. Actinobacillus actinomycetem comitans.
5. NUG.
6. Biologic width.