A methodological study of errors in vertical measurements of edentulous ridge height on orthopantomographic radiograms
Identifieur interne : 00DE33 ( Main/Exploration ); précédent : 00DE32; suivant : 00DE34A methodological study of errors in vertical measurements of edentulous ridge height on orthopantomographic radiograms
Auteurs : Tore Ramstad [Norvège] ; Odd Hensten-Pettersen [Norvège] ; Erik Mohn [Norvège] ; Samira I. Ibrahim [Norvège]Source :
- Journal of Oral Rehabilitation [ 0305-182X ] ; 1978-10.
Descripteurs français
- KwdFr :
- Adulte, Adulte d'âge moyen, Analyse de variance, Bouche édentée (anatomopathologie), Bouche édentée (imagerie diagnostique), Céphalométrie, Humains, Occlusion dentaire centrée, Plan de recherche, Processus alvéolaire (anatomopathologie), Processus alvéolaire (imagerie diagnostique), Radiographie panoramique (), Sujet âgé.
- MESH :
- anatomopathologie : Bouche édentée, Processus alvéolaire.
- imagerie diagnostique : Bouche édentée, Processus alvéolaire.
- Adulte, Adulte d'âge moyen, Analyse de variance, Céphalométrie, Humains, Occlusion dentaire centrée, Plan de recherche, Radiographie panoramique, Sujet âgé.
English descriptors
- KwdEn :
- Acta radiologica, Additional problems, Adult, Aged, Alveolar Process (diagnostic imaging), Alveolar Process (pathology), Analysis of Variance, Angle orthodontist, Articular eminences, Bony alveolar ridge, Cephalometry, Dental Occlusion, Centric, Edentulous patients, Focus layer, Head position, Humans, Insignificant values, Langland, Langland sippy, Longitudinal studies, Lower halves, Lowest value, Machine error, Mandible, Mandibular, Mandibular measurements, Mandibular midline marker, Mandibular midlines, Maxilla, Maxillary, Maxillary measurements, Measurements measurement maxilla, Methodological, Methodological errors, Methodological variances, Middle Aged, Midline, Midline markers, Morphological variance, Mouth, Edentulous (diagnostic imaging), Mouth, Edentulous (pathology), Mucous membrane, Ofthe, Oral medicine, Oral pathology, Oral surgery, Orthopantomograms, Orthopantomograph, Percentage distribution, Prosthetic dentistry, Radiography, Panoramic (methods), Ramstad, Random variance, Random variances, Reference line, Reference points, Relative magnitude, Research Design, Residual, Residual ridge, Residual ridges, Standard orthopantomograms, Standard position, Third orthopantomogram, Time lapse, Total variance, Total variances, Variance, Variance component, Variance components, Variance model, Vertical lines, Vertical measurements.
- MESH :
- diagnostic imaging : Alveolar Process, Mouth, Edentulous.
- methods : Radiography, Panoramic.
- pathology : Alveolar Process, Mouth, Edentulous.
- Teeft :
- Acta radiologica, Additional problems, Adult, Aged, Analysis of Variance, Angle orthodontist, Articular eminences, Bony alveolar ridge, Cephalometry, Dental Occlusion, Centric, Edentulous patients, Focus layer, Head position, Humans, Insignificant values, Langland, Langland sippy, Longitudinal studies, Lower halves, Lowest value, Machine error, Mandible, Mandibular, Mandibular measurements, Mandibular midline marker, Mandibular midlines, Maxilla, Maxillary, Maxillary measurements, Measurements measurement maxilla, Methodological, Methodological errors, Methodological variances, Middle Aged, Midline, Midline markers, Morphological variance, Mucous membrane, Ofthe, Oral medicine, Oral pathology, Oral surgery, Orthopantomograms, Orthopantomograph, Percentage distribution, Prosthetic dentistry, Ramstad, Random variance, Random variances, Reference line, Reference points, Relative magnitude, Research Design, Residual, Residual ridge, Residual ridges, Standard orthopantomograms, Standard position, Third orthopantomogram, Time lapse, Total variance, Total variances, Variance, Variance component, Variance components, Variance model, Vertical lines, Vertical measurements.
Abstract
The purpose of this methodological investigation was to study the relative magnitude of the various errors in vertical ridge measurements from orthopantomograms of edentulous patients. The study was divided into two parts, Part I and Part II. Part I included eleven patients. Two standard orthopantomograms were taken of each patient. Part II included five of the eleven patients in Part I. Here, a third X‐ray taken with the mouth open was added to the X‐rays from Part I. The X‐rays were traced by three dentists. Twelve vertical measurements in the maxilla and in the mandible were made. The variance produced by the patients (morphological variance) and those produced by the dentist, the X‐ray, the interaction patient‐dentist, the interaction dentist‐X‐ray and the random variance (methodological variances) were separately estimated on the basis of a three‐way mixed analysis of variance model. In Part I, on the average, the sum of the methodological variances constituted 1·7 % and 2·5 % of the total variance in the maxilla and in the mandible respectively. The X‐ray produced the greatest single variance component, averaging 1·1 % in both jaws. Although generally statistically significant, the remaining methodological variances were of low magnitude. The interaction patient‐dentist, however, was not significant in most cases. In Part II, on the average, the sum of the methodological variances increased to 38·8 % in the maxilla and 4·6 % in the mandible, mainly caused by an increase in the variance produced by the X‐ray.
Url:
DOI: 10.1111/j.1365-2842.1978.tb01259.x
Affiliations:
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<term>Aged</term>
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<term>Alveolar Process (pathology)</term>
<term>Analysis of Variance</term>
<term>Angle orthodontist</term>
<term>Articular eminences</term>
<term>Bony alveolar ridge</term>
<term>Cephalometry</term>
<term>Dental Occlusion, Centric</term>
<term>Edentulous patients</term>
<term>Focus layer</term>
<term>Head position</term>
<term>Humans</term>
<term>Insignificant values</term>
<term>Langland</term>
<term>Langland sippy</term>
<term>Longitudinal studies</term>
<term>Lower halves</term>
<term>Lowest value</term>
<term>Machine error</term>
<term>Mandible</term>
<term>Mandibular</term>
<term>Mandibular measurements</term>
<term>Mandibular midline marker</term>
<term>Mandibular midlines</term>
<term>Maxilla</term>
<term>Maxillary</term>
<term>Maxillary measurements</term>
<term>Measurements measurement maxilla</term>
<term>Methodological</term>
<term>Methodological errors</term>
<term>Methodological variances</term>
<term>Middle Aged</term>
<term>Midline</term>
<term>Midline markers</term>
<term>Morphological variance</term>
<term>Mouth, Edentulous (diagnostic imaging)</term>
<term>Mouth, Edentulous (pathology)</term>
<term>Mucous membrane</term>
<term>Ofthe</term>
<term>Oral medicine</term>
<term>Oral pathology</term>
<term>Oral surgery</term>
<term>Orthopantomograms</term>
<term>Orthopantomograph</term>
<term>Percentage distribution</term>
<term>Prosthetic dentistry</term>
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<term>Relative magnitude</term>
<term>Research Design</term>
<term>Residual</term>
<term>Residual ridge</term>
<term>Residual ridges</term>
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<term>Standard position</term>
<term>Third orthopantomogram</term>
<term>Time lapse</term>
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<term>Total variances</term>
<term>Variance</term>
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<term>Adulte d'âge moyen</term>
<term>Analyse de variance</term>
<term>Bouche édentée (anatomopathologie)</term>
<term>Bouche édentée (imagerie diagnostique)</term>
<term>Céphalométrie</term>
<term>Humains</term>
<term>Occlusion dentaire centrée</term>
<term>Plan de recherche</term>
<term>Processus alvéolaire (anatomopathologie)</term>
<term>Processus alvéolaire (imagerie diagnostique)</term>
<term>Radiographie panoramique ()</term>
<term>Sujet âgé</term>
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<term>Processus alvéolaire</term>
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<term>Mouth, Edentulous</term>
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<term>Processus alvéolaire</term>
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<term>Mouth, Edentulous</term>
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<term>Additional problems</term>
<term>Adult</term>
<term>Aged</term>
<term>Analysis of Variance</term>
<term>Angle orthodontist</term>
<term>Articular eminences</term>
<term>Bony alveolar ridge</term>
<term>Cephalometry</term>
<term>Dental Occlusion, Centric</term>
<term>Edentulous patients</term>
<term>Focus layer</term>
<term>Head position</term>
<term>Humans</term>
<term>Insignificant values</term>
<term>Langland</term>
<term>Langland sippy</term>
<term>Longitudinal studies</term>
<term>Lower halves</term>
<term>Lowest value</term>
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<term>Mandible</term>
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<term>Mandibular measurements</term>
<term>Mandibular midline marker</term>
<term>Mandibular midlines</term>
<term>Maxilla</term>
<term>Maxillary</term>
<term>Maxillary measurements</term>
<term>Measurements measurement maxilla</term>
<term>Methodological</term>
<term>Methodological errors</term>
<term>Methodological variances</term>
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<term>Midline markers</term>
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<term>Mucous membrane</term>
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<term>Oral medicine</term>
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<term>Variance components</term>
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<term>Adulte d'âge moyen</term>
<term>Analyse de variance</term>
<term>Céphalométrie</term>
<term>Humains</term>
<term>Occlusion dentaire centrée</term>
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<front><div type="abstract" xml:lang="en">The purpose of this methodological investigation was to study the relative magnitude of the various errors in vertical ridge measurements from orthopantomograms of edentulous patients. The study was divided into two parts, Part I and Part II. Part I included eleven patients. Two standard orthopantomograms were taken of each patient. Part II included five of the eleven patients in Part I. Here, a third X‐ray taken with the mouth open was added to the X‐rays from Part I. The X‐rays were traced by three dentists. Twelve vertical measurements in the maxilla and in the mandible were made. The variance produced by the patients (morphological variance) and those produced by the dentist, the X‐ray, the interaction patient‐dentist, the interaction dentist‐X‐ray and the random variance (methodological variances) were separately estimated on the basis of a three‐way mixed analysis of variance model. In Part I, on the average, the sum of the methodological variances constituted 1·7 % and 2·5 % of the total variance in the maxilla and in the mandible respectively. The X‐ray produced the greatest single variance component, averaging 1·1 % in both jaws. Although generally statistically significant, the remaining methodological variances were of low magnitude. The interaction patient‐dentist, however, was not significant in most cases. In Part II, on the average, the sum of the methodological variances increased to 38·8 % in the maxilla and 4·6 % in the mandible, mainly caused by an increase in the variance produced by the X‐ray.</div>
</front>
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<affiliations><list><country><li>Norvège</li>
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<region><li>Østlandet</li>
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<name sortKey="Hensten Ettersen, Odd" sort="Hensten Ettersen, Odd" uniqKey="Hensten Ettersen O" first="Odd" last="Hensten-Pettersen">Odd Hensten-Pettersen</name>
<name sortKey="Ibrahim, Samira I" sort="Ibrahim, Samira I" uniqKey="Ibrahim S" first="Samira I." last="Ibrahim">Samira I. Ibrahim</name>
<name sortKey="Mohn, Erik" sort="Mohn, Erik" uniqKey="Mohn E" first="Erik" last="Mohn">Erik Mohn</name>
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