Reflection photoelasticity: a new method for studies of clinical mechanics in prosthetic dentistry

Fernandes, Cláudio Pinheiro; Glantz, Per‐Olof; Svensson, Stig A; Bergmark, Åke

doi:10.1016/s0109-5641(02)00019-2

Cited by 36 publications

(25 citation statements)

References 28 publications

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“…In addition, photoelastic method was proven to be a valid, reliable, and accurate technique to be used in vivo studies on biomechanical behavior of prosthetic devices. In comparison to matching strain gauge data, the stress distributions of photoelasticity showed a high correlation with values obtained at the same areas using strain gauges (30,31). In terms of fracture resistance, the absolute values are lower in resin teeth than human teeth.…”

Section: Discussionmentioning

confidence: 65%

Effect of the Number of Residual Walls on Fracture Resistances, Failure Patterns, and Photoelasticity of Simulated Premolars Restored with or without Fiber-reinforced Composite Posts

Nam

Chang

Min

et al. 2010

Journal of Endodontics

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Section: Discussionmentioning

confidence: 65%

Effect of the Number of Residual Walls on Fracture Resistances, Failure Patterns, and Photoelasticity of Simulated Premolars Restored with or without Fiber-reinforced Composite Posts

Nam

Chang

Min

et al. 2010

Journal of Endodontics

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“…An analysis of the intensity of the stresses (fringe order: 0, 1, 2, 3 or 4) in the different regions of each model [13], in accordance with the quantitative methods already used in the literature [14], was performed.…”

Section: Methods Of Analyzing the Resultsmentioning

confidence: 99%

Analysis of the biomechanical behavior of short implants: The photo-elasticity method

Pellizzer

Mello

Santiago³

et al. 2015

Materials Science and Engineering: C

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“…Strain gauges are the most accurate instruments for recording surface stresses. 13 Although there was agreement and compatibility between strain-gauge measurements and the FEA method, strain values obtained from strain gauges were found to be higher than strain values obtained using the FEA method. 16 As no single technique meets all of the requirements for displaying the extensive physiological interactions involved in biomechanical research, 12 designated strain gauge locations of the current study were determined using a pilot two-dimensional FEA study.…”

Section: Discussionmentioning

confidence: 86%

Effects of the type and rigidity of the retainer and the number of abutting teeth on stress distribution of telescopic-retained removable partial dentures

Şahin

Akaltan

Parnas

2012

Journal of Dental Sciences

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Background/purpose: Little is known about the force-transmission characteristics and patterns of telescopic-retained removable partial dentures (RPDs) as related to their type and rigidity (rigid and/or resilient) and the number of abutting teeth supporting the telescopic dentures. In this study, we compared the strain around the abutting teeth and edentulous ridges supporting telescopic-retained RPDs with different designs using a strain gauge technique. Materials and methods: A maxillary model including four abutting teeth (# 14, 13, 23, and 24) was constructed and is referred to as Case 1. In total, four RPD frameworks (two resilient and two rigid) were fabricated for Case 1 with a conventional telescope retainer and attachmentretained telescopic retainer (ARTR) groups. A vertical static load of 280 N was applied, and strain values obtained from the strain gauges were recorded. RPDs were modified according to the following casesdCase 2 included teeth 14, 13, and 23; Case 3 included teeth 14 and 13; and Case 4 included teeth 13 and 23dand measurements were repeated. A randomized block analysis of the variance test was conducted using a general linear model procedure with statistical software. Multiple comparisons between groups were performed using Tukey's honest significant difference test (a Z 0.05). Results: RPDs with an ARTR produced more strain distal to the abutting teeth than RPDs with a conventional telescope retainer. Both retainer types with a rigid design produced more strain distal to the abutting teeth than did retainers with a resilient design. RPDs supported by four, three, and two unilateral abutting teeth produced similar strain patterns. RPDs supported by two bilateral abutting teeth produced the highest strain distal to the abutting teeth, but there was no significant difference between the strains produced by RPDs Journal of Dental Sciences (2012) 7, 7e13 supported by either two unilateral or bilateral abutting teeth. The highest strain values were obtained from strain gauges distal to the "terminal" abutting teeth. Directions of the principal strain were in a vertical direction for gauges located distal to the terminal abutting teeth. More strain was produced on the posterior edentulous ridges. Conclusion: RPDs with an ARTR and both retainer types with a rigid design produced more strain distal to the abutting teeth. Using more than two abutting teeth did not improve the strain patterns of the tested RPDs. More strain was produced on the posterior edentulous ridges.

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Reflection photoelasticity: a new method for studies of clinical mechanics in prosthetic dentistry

Cited by 36 publications

References 28 publications

Effect of the Number of Residual Walls on Fracture Resistances, Failure Patterns, and Photoelasticity of Simulated Premolars Restored with or without Fiber-reinforced Composite Posts

Effect of the Number of Residual Walls on Fracture Resistances, Failure Patterns, and Photoelasticity of Simulated Premolars Restored with or without Fiber-reinforced Composite Posts

Analysis of the biomechanical behavior of short implants: The photo-elasticity method

Effects of the type and rigidity of the retainer and the number of abutting teeth on stress distribution of telescopic-retained removable partial dentures

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