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Abstract

Past research has confirmed that the governing factors in cellular modelling and remodelling adhere to sound principles of engineering mechanics. Hence studies of stress distributions would provide better understanding of the functional adaptation of dental supporting structures. Photoelasticity is an established experimental tool to study whole-field stress distribution in structures subjected to forces. However, it has certain limitations that make its application in biological specimens tedious. In this investigation an advanced digital photoelastic system is used to visualize and study the nature of the stress distribution in dental supporting structures. These digital fringe patterns are analysed using a phase-shift technique. The present biomechanical study shows that dental supporting structures exhibit a characteristic stress distribution, promoting structural adaptation based on needs. Furthermore, the advantage of using a digital image processing system along with the circular polariscope is discussed.

Keywords

alveolar bone digital image processing photoelasticity stress

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References

Carranza

F. A.

Clinical Periodontology, 1990, pp. 62–72 (Saunders Company International, Philadelphia, Pennsylvania).

Lanyon

L. E.

Goodship

A. E.

Pye

C. J.

MacFie

J. H.

Mechanically adaptive bone remodeling

J. Biomechanics, 1982, 15, 141–154.

Roberts

W. E.

Bone physiology, metabolism, and biomechanics in orthodontic practice In Orthodontics: Current Principles and Techniques (Eds Graber

T. M.

Vanarsdall

R. L.

), 1994, pp. 193–233 (Mosby Year Book International, St Louis, Missouri).

Glickman

Roeber

F. W.

Brion

Pameijer

J. H.

Photoelastic analysis of internal stresses in the periodontium created by occlusal forces

J. Periodontol., 1970, 41, 30–35.

Brodsky

J. F.

Caputo

A. A.

Furstman

L. L.

Root tipping: A photoelastic histopathologic correlation

Am. J. Orthod., 1975, 67, 1–10.

De Alba

J. A.

Caputo

A. A.

Chaconas

S. J.

Effects of orthodontic intermaxillary class III mechanics on craniofacial structures: Part I. Photoelastic analysis

Angle Orthod., 1979, 49, 21–28.

Mahler

D. B.

Peyton

F. A.

Photoelasticity as a research technique for analysing stresses in dental structures

J. Dent. Res., 1955, 34, 831–838.

Lehman

M. L.

Meyer

M. L.

Relationship of dental caries and stress concentrations in teeth as revealed by photoelastic test

J. Dent. Res., 1966, 45, 1706–1714.

Caputo

A. A.

Standlee

J. P.

Biomechanics in Clinical Dentistry, 1987, pp. 19–27 (Quintessence Publishing Company Inc., Carol Stream, Illinois).

10.

Asundi

Phase shifting in photoelasticity

Expl Techniques, 1993, 17, 19–23.

11.

Judge

T. R.

Bryanston-Cross

P. J.

A review of phase unwrapping techniques in fringe analysis

Optics Lasers Engng, 1994, 21, 199–239.

12.

Dally

J. W.

Riley

W. F.

Experimental Stress Analysis, 1991, pp. 425–429 (McGraw-Hill, New York).

13.

Rosvold

G. O.

Fast measurement of phase using a PC-based frame grabber and phase stepping technique

Appl. Optics, 1990, 29, 237–241.

14.

Hearn

E. J.

Photoelasticity, 1971, pp. 20–21 (Merrow Publishing Company Limited, London).

Stress distribution in the dento-alveolar system using digital photoelasticity

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