Analysis of the effect of contact strength on three-dimensional displacement of an implant-supported fixed bridge under axial-concentrated load using digital laser speckle photography / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 1235-1243, 2013.
Article
in Chinese
| WPRIM
| ID: wpr-259733
ABSTRACT
The purpose of this study was to investigate the effect of four kinds of different contact strength on the three-dimensional displacement of an implant-supported fixed bridge using digital laser speckle photography method. An in vitro model of beagle mandible with an implant-supported fixed bridge in its right premolar region was developed. The bridge was Au-Pt metal-ceramic. The contact was recovered to four different tightnesses, named 0, 1, 2, and 3. Different axial concentrated static load was applied to abutments and bridge respectively. The three-dimensional displacement of the implant-supported fixed bridge was measured using digital laser speckle photographic method. The results demonstrated that the influence of contact tightness was mainly on the mesio-distal and buccal lingual parts. When the contact tightness reached number 3, the regularity of displacement distribution was changed. The present study proved that digital laser speckle photography was an effective method of measuring the micro-displacement. One of the criterions of contact recovering decreased the implant displacement effectively without changing the regularity of displacement distribution.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Diagnostic Imaging
/
Photography
/
Dental Prosthesis, Implant-Supported
/
Models, Animal
/
Denture, Partial, Fixed
/
Lasers
/
Mandible
/
Methods
Type of study:
Diagnostic study
/
Prognostic study
Limits:
Animals
Language:
Chinese
Journal:
Journal of Biomedical Engineering
Year:
2013
Type:
Article
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