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Shape model of the maxillary dental arch using Fourier descriptors with an application in the rehabilitation for edentulous patient.

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Shape model of the maxillary dental arch using Fourier descriptors with an application in the rehabilitation for edentulous patient.

Auteurs : Omar M. Rijal ; Norli A. Abdullah ; Zakiah M. Isa ; Norliza M. Noor ; Omar F. Tawfiq

Source :

Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference [ 1557-170X ] ; 2013.

RBID : pubmed:24109661

Descripteurs français

KwdFr :
- Algorithmes, Analyse de Fourier, Analyse multivariée, Arcade dentaire (anatomopathologie), Humains, Interprétation d'image assistée par ordinateur, Maxillaire (anatomopathologie), Mâchoire édentée (anatomopathologie).
MESH :
- anatomopathologie : Arcade dentaire, Maxillaire, Mâchoire édentée.
- Algorithmes, Analyse de Fourier, Analyse multivariée, Humains, Interprétation d'image assistée par ordinateur.

English descriptors

KwdEn :
- Algorithms, Dental Arch (pathology), Fourier Analysis, Humans, Image Interpretation, Computer-Assisted, Jaw, Edentulous (pathology), Maxilla (pathology), Multivariate Analysis.
MESH :
- pathology : Dental Arch, Jaw, Edentulous, Maxilla.
- Algorithms, Fourier Analysis, Humans, Image Interpretation, Computer-Assisted, Multivariate Analysis.

Abstract

The knowledge of teeth positions on the maxillary arch is useful in the rehabilitation of the edentulous patient. A combination of angular (θ), and linear (l) variables representing position of four teeth were initially proposed as the shape descriptor of the maxillary dental arch. Three categories of shape were established, each having a multivariate normal distribution. It may be argued that 4 selected teeth on the standardized digital images of the dental casts could be considered as insufficient with respect to representing shape. However, increasing the number of points would create problems with dimensions and proof of existence of the multivariate normal distribution is extremely difficult. This study investigates the ability of Fourier descriptors (FD) using all maxillary teeth to find alternative shape models. Eight FD terms were sufficient to represent 21 points on the arch. Using these 8 FD terms as an alternative shape descriptor, three categories of shape were verified, each category having the complex normal distribution.

DOI: 10.1109/EMBC.2013.6609474
PubMed: 24109661

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<series><title level="j">Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference</title>
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<term>Jaw, Edentulous (pathology)</term>
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<term>Humains</term>
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<term>Maxillaire (anatomopathologie)</term>
<term>Mâchoire édentée (anatomopathologie)</term>
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<term>Maxillaire</term>
<term>Mâchoire édentée</term>
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<keywords scheme="MESH" qualifier="pathology" xml:lang="en"><term>Dental Arch</term>
<term>Jaw, Edentulous</term>
<term>Maxilla</term>
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<term>Fourier Analysis</term>
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<term>Analyse de Fourier</term>
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<front><div type="abstract" xml:lang="en">The knowledge of teeth positions on the maxillary arch is useful in the rehabilitation of the edentulous patient. A combination of angular (θ), and linear (l) variables representing position of four teeth were initially proposed as the shape descriptor of the maxillary dental arch. Three categories of shape were established, each having a multivariate normal distribution. It may be argued that 4 selected teeth on the standardized digital images of the dental casts could be considered as insufficient with respect to representing shape. However, increasing the number of points would create problems with dimensions and proof of existence of the multivariate normal distribution is extremely difficult. This study investigates the ability of Fourier descriptors (FD) using all maxillary teeth to find alternative shape models. Eight FD terms were sufficient to represent 21 points on the arch. Using these 8 FD terms as an alternative shape descriptor, three categories of shape were verified, each category having the complex normal distribution.</div>
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Shape model of the maxillary dental arch using Fourier descriptors with an application in the rehabilitation for edentulous patient.

Shape model of the maxillary dental arch using Fourier descriptors with an application in the rehabilitation for edentulous patient.

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki