Overview of three-dimensional shape measurement using optical methods

Chen, Fanglin; Brown, Gordon M.; Song, Miao

doi:10.1117/1.602438

Cited by 1,108 publications

(61 citation statements)

References 149 publications

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“…Then the pictures of the CCD were taken by the conjoint computer and the speckle grams exposed before and after the loadings were analyzed (Chen et al, 2000). The displacements of the fixed bridge are observed only in the plane of the CCD observation direction rather than the spatial orientation through single CCD in this study.…”

Section: Dls Techniquementioning

confidence: 96%

Effect of proximal contact strength on the three-dimensional displacements of implant-supported cantilever fixed partial dentures under axial loading

Peng

Chen

Wang

et al. 2013

J. Zhejiang Univ. Sci. B

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Abstract:Objective: This study investigated the effect of proximal contact strength on the three-dimensional displacements of cantilever fixed partial denture (CFPD) under vertically concentrated loading with digital laser speckle (DLS) technique. Methods: Fresh mandible of beagle dog was used to establish the implant-supported CFPD for specimen. DLS technique was employed for measuring the three-dimensional displacement of the prosthesis under vertically concentrated loading ranging from 200 to 3 000 g. The effect of the contact tightness on the displacement of CFPD was investigated by means of changing the contact tightness. Results: When an axial concentrated loading was exerted on the pontic of the implant-supported CFPD, the displacement of the CFPD was the greatest. The displacement of the prosthesis decreased with the increase of contact strength. When the contact strength was 0, 0.95, and 3.25 N, the displacement of the buccolingual direction was smaller than that of the mesiodistal direction but greater than that of the occlusogingival direction. When the force on the contact area was 6.50 N, the mesiodistal displacement of the prosthesis was the biggest while the buccolingual displacement was the smallest. Conclusions: The implantsupported CFPD is an effective therapy for fully or partially edentulous patients. The restoration of the contact area and the selection of the appropriate contact strength can reduce the displacement of the CFPD, and get a better stress distribution. The most appropriate force value is 3.25 N in this study.

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Section: Dls Techniquementioning

confidence: 96%

Effect of proximal contact strength on the three-dimensional displacements of implant-supported cantilever fixed partial dentures under axial loading

Peng

Chen

Wang

et al. 2013

J. Zhejiang Univ. Sci. B

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“…These techniques are widely recognized as promising in areas such as medicine, on-line inspection, reverse engineering and computer-aided design or manufacturing [1].…”

Section: Introductionmentioning

confidence: 99%

Color deflectometry for phase retrieval using phase-shifting methods

Flores¹,

Legarda-Sáenz²,

García–Torales³

2015

Optics Communications

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“…Generally, existing optical 3D measurement techniques can be broadly divided into passive and active methods [1,2]. Among active measuring techniques, the structured light system is well studied for its outstanding features 5 like fast speed, high accuracy and non-contact measurement [3,4].…”

Section: Introductionmentioning

confidence: 99%