DC pole | Wartość | Język |
dc.contributor.author | Koprowski, Robert | - |
dc.contributor.author | Machoy, M. | - |
dc.contributor.author | Woźniak, K. | - |
dc.contributor.author | Wróbel, Zygmunt | - |
dc.date.accessioned | 2019-06-04T09:03:57Z | - |
dc.date.available | 2019-06-04T09:03:57Z | - |
dc.date.issued | 2014 | - |
dc.identifier.citation | BioMedical Engineering, Vol. 13, iss. 1 (2014), art. no. 48 | pl_PL |
dc.identifier.issn | 1475-925X | - |
dc.identifier.uri | http://hdl.handle.net/20.500.12128/9335 | - |
dc.description.abstract | Introduction: Fixed orthodontic appliances, despite years of research and
development, still raise a lot of controversy because of its potentially destructive
influence on enamel. Therefore, it is necessary to quantitatively assess the condition
and therein the thickness of tooth enamel in order to select the appropriate
orthodontic bonding and debonding methodology as well as to assess the quality
of enamel after treatment and clean-up procedure in order to choose the most
advantageous course of treatment. One of the assessment methods is computed
tomography where the measurement of enamel thickness and the 3D reconstruction
of image sequences can be performed fully automatically.
Material and method: OCT images of 180 teeth were obtained from the Topcon
3D OCT-2000 camera. The images were obtained in vitro by performing sequentially
7 stages of treatment on all the teeth: before any interference into enamel, polishing
with orthodontic paste, etching and application of a bonding system, orthodontic
bracket bonding, orthodontic bracket removal, cleaning off adhesive residue. A dedicated
method for the analysis and processing of images involving median filtering,
mathematical morphology, binarization, polynomial approximation and the active
contour method has been proposed.
Results: The obtained results enable automatic measurement of tooth enamel
thickness in 5 seconds using the Core i5 CPU M460 @ 2.5GHz 4GB RAM. For one
patient, the proposed method of analysis confirms enamel thickness loss of 80 μm
(from 730 ± 165 μm to 650 ± 129 μm) after polishing with paste, enamel thickness loss
of 435 μm (from 730 ± 165 μm to 295±55 μm) after etching and bonding resin
application, growth of a layer having a thickness of 265 μm (from 295 ± 55 μm to
560 ± 98 μm after etching) which is the adhesive system. After removing an
orthodontic bracket, the adhesive residue was 105 μm and after cleaning it off, the
enamel thickness was 605 μm. The enamel thickness before and after the whole
treatment decreased by about 125 μm.
Conclusions: This paper presents an automatic quantitative method for the
assessment of tooth enamel thickness. This method has proven to be an effective
diagnostic tool that allows evaluation of the surface and cross section of tooth enamel
after orthodontic treatment with fixed thin-arched braces and proper selection of the
methodology and course of treatment. | pl_PL |
dc.language.iso | en | pl_PL |
dc.rights | Uznanie autorstwa 3.0 Polska | * |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/pl/ | * |
dc.subject | Image processing | pl_PL |
dc.subject | Orthodontic | pl_PL |
dc.subject | Measurement Automation | pl_PL |
dc.subject | Segmentation | pl_PL |
dc.subject | Tooth enamel | pl_PL |
dc.title | Automatic method of analysis of OCT images in the assessment of the tooth enamel surface after orthodontic treatment with fixed braces | pl_PL |
dc.type | info:eu-repo/semantics/article | pl_PL |
dc.relation.journal | BioMedical Engineering | pl_PL |
dc.identifier.doi | 10.1186/1475-925X-13-48 | - |
Pojawia się w kolekcji: | Artykuły (WNŚiT)
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