Name of the University : The Tamilnadu Dr. M.G.R. Medical University
Degree : MASTER OF DENTAL SURGERY (M.D.S)
BRANCH V : ORTHODONTICS
Subject Code/Name : 2419/Bio-Mechanics, Tissue Changes Orthodontic Techniques And Treatment Planning
Year : I
Document Type : Question Bank
Website : web.tnmgrmu.ac.in
Download Model/Sample Question Paper :
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TN MGR Tissue Changes Orthodontic Techniques
September 2008 :
[KT 383] Sub. Code: 2419
M.D.S. DEGREE EXAMINATION. :
Related : TNMGRMU Growth And Development, Basics In Orthodontics, Diagnosis And Radiology MDS Question Bank : www.pdfquestion.in/3648.html
(Revised Regulations)
Branch V : ORTHODONTICS
(For Candidates admitted from 2004-2005 onwards)
Paper III : BIO-MECHANICS, TISSUE CHANGES ORTHODONTIC TECHNIQUES AND TREATMENT PLANNING
Q.P. Code : 242419
Time : Three hours
Maximum : 100 marks
Draw suitable diagram wherever necessary. :
Answer ALL questions. :
I. Essay questions : (2 X 20 = 40)
1. Discuss the theories of bone formation and resorption and changes in the periodontal ligament during orthodontic tooth movement.
2. Compare the mechanism of bite opening achieved by the Beggs appliance and pre adjusted edgewise appliance.
II. Write short notes on : (6 X 10 = 60)
1. T – loop.
2. Utility arch.
3. Effects of functional regulator II.
4. Frictionless canine retraction.
5. Combination anchorage technique.
6. Ceramic bracket.
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 principles and techniques of using fixed functional appliances for advancement of the mandible in skeletal and dentalclass II problems. Add a note on their utility over non-fixed appliances.
2. Discuss the diagnostic, pre and post surgical – orthodontic management of the adult severely prognathic patient in an orthodontic practice. Add a note on the complications, iatrogenic sequelae and long term surveillance of these patients.
II. Write short notes on : (6 x 10 = 60)
1. Short face syndrome.
2. Transverse alveolar discrepancies & distraction osteogenesis.
3. Secondary alveolar bone graft for cleft palate deformity.
4. Late incisor crowding and its clinical management.
5. Debonding of ceramic brackets.
6. Temporary Anchorage devices for maxillary incisor intrusion and retraction.
September 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 evolution, clinical usage and utility of self ligating orthodontic brackets. Add a note on the frictional features and treatment duration with self ligating brackets.
2. Enumerate and discuss the contemporary occlusal and gnathologic goals for finishing an orthodontic case. Add a note on how these factors impact retension and long term stability.
II. Write short notes on : (6 x 10 = 60)
1. Remineralisation of orthodontically demineralised enamel.
2. Designated torque versus delivered torque in preadjusted edgewise appliance.
3. Principles and utility of the pre-finish cephalogram.
4. Intra oral corrosion of metallic orthodontic appliance components.
5. Intra-oral distraction osteogenesis.
6. Nickel hypersensitivity and its clinical management.
March 2010 :
Time : Three hours
Maximum : 100 marks
Answer ALL questions :
Draw suitable diagram wherever necessar :
I. Essay questions : (2 x 20 = 40)
1. Mandibular pragnathic appliances.
2. Frictionless mechanics orthodontics.
II. Write short notes on : (6 x 10 = 60)
1. Long face syndrome.
2. Residual composite removal after debonding.
3. Orthodontic bracket recycling.
4. Implant as an anchorage.
5. Inter canine distance in orthodontic treatment planning.
6. Nano technology in orthodontics.
OCTOBER 2013 :
Time: Three Hours
Maximum: 100 marks
Answer ALL questions in the same order. :
I. Elaborate on : (10 x 10 = 100)
1. Deleterious effect of orthodontic force.
2. Distalisation of molars
3. Hysteresis
4. Final settling of teeth in orthodontics.
5. Magnets in orthodontics
6. Anchorage loss in straight wire technique
7. Root paralleing mechanism in various techniques.
8. Temporary skeletal anchorage systems
9. Distraction osteogenesis
10. Alignment of asymmetric crowding.
APRIL 2014 :
Time : 3 hours
Maximum : 100 marks
(10×10=100)
1. Grummon’s analysis.
2. Molar distalisation techniques.
3. Magnets in orthodontics.
4. Pre surgical orthodontics.
5. Natural head position.
6. Gnathostatic occlusion.
7. Maxillary retraction and intrusion splints.
8. Bio progressive therapy.
9. Retention appliances.
10. Iatrogenic effects of orthodontic treatment.
OCTOBER 2014 :
Time : 3 Hours
Maximum : 100 Marks
(10 x 10 = 100)
1. Discuss about the various treatment modalities of open bite pertaining to its etiology.
2. Discuss the biomechanical concerns during orthodontic treatment in periodontally compromised patients and for prosthetic restoration.
3. What is Deprogramming splint? Write about its types, indications and construction?
4. Management of congenitally missing lateral incisor.
5. Write in detail about the Tissue response to various orthodontic forces.
6. Elucidate in detail about frictionless mechanics; add a note about the biomechanics of Opus-loop.
7. Discuss in detail etiology and management of transverse discrepancies. Write a note on surgically assisted rapid palatal expansion.
8. Discuss in detail the management of deep bite in relation to the various etiological factors and clinical features.
9. Lasers in Orthodontics.
10. Enumerate the varieties of disinfection procedures and sterilization of orthodontic instruments and materials. Add a not on Recycling Procedures.