Secondary TFO 3D FEA (Dissertation Synopsis)

RAJIV GANDHI UNIVERSITY OF HEALTH SCIENCES BANGALORE, KARNATAKA ANNEXURE – II PROFORMA FOR REGISTRATION OF SUBJECTS FOR DISSERTATION 1. NAME AND ADDRESS OF THE Dr. SHIVLI ARORA CANDIDATE (in Block letters) DEPARTMENT OF PERIODONTICS. DAYANANDA SAGAR COLLEGE OF DENTAL SCIENCES. KUMARASWAMY LAYOUT.

BANGALORE 560078.

2. NAME OF THE INSTITUITION DAYANANDA SAGAR COLLEGE OF DENTAL SCIENCES , BANGALORE.

3. COURSE OF STUDY AND SUBJECT MASTER OF DENTAL SURGERY, PERIODONTICS.

4. DATE OF ADMISSION TO THE 26.05.2010 COURSE

5. TITLE OF THE TOPIC BIOMECHANICAL STRESSES GENERATED WITHIN THE PERIODONTAL LIGAMENT IN SECONDARY TRAUMA FROM OCCLUSION – A THREE DIMENSIONAL FINITE ELEMENT ANALYSIS.

6. BRIEF RESUME OF THE INTENDED WORK – 7. 6.1 Need for the study –

Teeth and their supporting structures are subjected to severe occlusal forces of upto 50 1 kg during mastication . The presence of tissue fluids and arrangement of periodontal

ligament fibers are such that these intermittent heavy forces can be properly

accommodated (i.e. adaptive capacity) , without tissue destruction, but the effect of

masticatory forces on periodontal ligament with reduced bone height remains vague. 2 According to Pihlstrom et al , at given equal clinical attachment levels , teeth with

evidence of functional mobility and widened periodontal ligament space had about 10%

less radiographic support than teeth without these findings.

Based on this fact , the present study aims to assess the alveolar bone loss and its

consequences on periodontal ligament under normal masticatory loads. There are a few

clinical studies related to the present topic , may be due to lack of a reliable index for

measuring the degree of occlusal trauma to which the tooth is subjected. Although some 8. LIST OF REFERENCES : 1.Serio F.G.,Hawley C.E. Periodontal trauma and mobility. Dent Clin North Am 1999;43:37-44. 2.Pihlstorm B.L , Anderson K.A, Aeppli D, Schaff E.M. Assosiation between signs of trauma from occlusion and periodontitis. J Periodontol 1986;57:1-6. 3.Lindhe J, Ericsson I. Influence of Trauma from occlusion on reduced but healthy periodontal tissues in dogs. J Clin periodontol 1976;3:110-112. 4.Rubin C , Krishnamoorthy N, Capilonto E , Yi M . Stress analysis using FEM. J Dent Res 1983;62:82. 5.Geramy A. Initial stress produced in the periodontal membrane by orthodontic loads in the presence of varying loss of alveolar bone: A 3D finite element analysis. Eur J orthod 2002;24:21-33. 6.Geramy A. Secondary trauma from occlusion: Three –dimensional analysis using the finite element method. Quintessence Int 2004;35:835-843. 7.Richard A, Reinhardt, Robert F Krejci . Periodontal ligament stresses in the initiation of occulusal traumatism. J Periodont Res 1984; 19:236-246. 8.Reddy M.K, Vandana K.L. Three dimensional finite element analysis in the periodontium . J Int Acad Periodontol 2005;7(4):102-7. 9.Ona M, Wakabayashi N. Influence of alveolar bone support on stress in periodontal structures. J Dent Res 2006; 85(12):1087-91. 9. SIGNATURE OF THE CANDIDATE

This study is recommended foreseeing 10. REMARKS OF THE GUIDE the future possibility of finite element method as an aid for clinical assessment .

11. 11.1 NAME AND DESIGNATION OF THE DR. SAVITA A.M GUIDE/S Professor & Head. Department of Periodontics. Dayananda Sagar College of Dental Sciences. 11.2 GUIDE SIGNATURE

11.3 CO-GUIDE (if any) SIGNATURE

11.4 HEAD OF THE DEPARTMENT SIGNATURE

12 REMARKS OF THE CHAIRMAN AND PRINCIPAL

SIGNATURE