Three-dimensional analysis of morphological changes in the maxilla of patients with cleft lip and palate
Identifieur interne : 008606 ( Main/Exploration ); précédent : 008605; suivant : 008607Three-dimensional analysis of morphological changes in the maxilla of patients with cleft lip and palate
Auteurs : Bert Braumann [Allemagne] ; Ludger Keilig ; Christoph Bourauel [Allemagne] ; Andreas J Ger [Allemagne]Source :
- The Cleft palate-craniofacial journal [ 1055-6656 ] ; 2002.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
Objective: Three-dimensional (3-D) morphological changes in the maxilla of patients with cleft lip and palate (CLP) have been recorded, mainly using two-dimensional cast analyses. Although these seem to be insufficient, no standardized 3-D method has been developed until now. In this study, accuracy, precision, and validity of a newly developed 3-D digital computer-aided procedure to visualize and metrically analyze the growth of the edentulous maxilla of infants with CLP have been evaluated. Patients: The method was applied to 10 infants with complete unilateral CLP. Interventions: Consecutive casts of the maxilla (1 week and 3, 6, and 12 months) of each patient were optically measured with a 3-D laser scanner. Following digitizing, the casts were computer reconstructed, aligned, and superimposed using specialized computer software. The distances between the surfaces were measured. Additionally, the surfaces were segmented perpendicular to the alveolar crest, the reference points being C1, C1', C2, C2', and I. The volumes of the resulting segments were determined and compared with one another. Results: The newly developed analysis enables a visualization of the extent and direction of morphological changes in the maxilla of infants with CLP. With this method it is possible to quantify these changes of the volume of defined alveolar segments. Conclusions: The 3-D analysis developed is an ideal tool for the examination of 3-D morphological changes in the edentulous maxilla of patients with CLP. The results will serve as the starting point for a longitudinal study on the efficacy of different methods, not only of presurgical infant orthopedics but also of surgical procedures.
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first="Christoph" last="Bourauel">Christoph Bourauel</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Department of Orthodontics, Center for Dentistry, University of Bonn</s1><s2>Bonn</s2><s3>DEU</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Allemagne</country><placeName><region type="land" nuts="1">Rhénanie-du-Nord-Westphalie</region><region type="district" nuts="2">District de Cologne</region><settlement type="city">Bonn</settlement></placeName></affiliation></author><author><name sortKey="J Ger, Andreas" sort="J Ger, Andreas" uniqKey="J Ger A" first="Andreas" last="J Ger">Andreas J Ger</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Department of Orthodontics, Center for Dentistry, University of Bonn</s1><s2>Bonn</s2><s3>DEU</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Allemagne</country><placeName><region type="land" nuts="1">Rhénanie-du-Nord-Westphalie</region><region type="district" nuts="2">District de 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with cleft lip and palate</title><author><name sortKey="Braumann, Bert" sort="Braumann, Bert" uniqKey="Braumann B" first="Bert" last="Braumann">Bert Braumann</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Department of Orthodontics, Center for Dentistry, University of Bonn</s1><s2>Bonn</s2><s3>DEU</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Allemagne</country><placeName><region type="land" nuts="1">Rhénanie-du-Nord-Westphalie</region><region type="district" nuts="2">District de Cologne</region><settlement type="city">Bonn</settlement></placeName></affiliation></author><author><name sortKey="Keilig, Ludger" sort="Keilig, Ludger" uniqKey="Keilig L" first="Ludger" last="Keilig">Ludger Keilig</name></author><author><name sortKey="Bourauel, Christoph" sort="Bourauel, Christoph" uniqKey="Bourauel C" first="Christoph" last="Bourauel">Christoph Bourauel</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Department of Orthodontics, Center for Dentistry, University of Bonn</s1><s2>Bonn</s2><s3>DEU</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Allemagne</country><placeName><region type="land" nuts="1">Rhénanie-du-Nord-Westphalie</region><region type="district" nuts="2">District de Cologne</region><settlement type="city">Bonn</settlement></placeName></affiliation></author><author><name sortKey="J Ger, Andreas" sort="J Ger, Andreas" uniqKey="J Ger A" first="Andreas" last="J Ger">Andreas J Ger</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Department of Orthodontics, Center for Dentistry, University of Bonn</s1><s2>Bonn</s2><s3>DEU</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Allemagne</country><placeName><region type="land" nuts="1">Rhénanie-du-Nord-Westphalie</region><region type="district" nuts="2">District de Cologne</region><settlement type="city">Bonn</settlement></placeName></affiliation></author></analytic><series><title level="j" type="main">The Cleft palate-craniofacial journal</title><title level="j" type="abbreviated">Cleft palate craniofac. j.</title><idno type="ISSN">1055-6656</idno><imprint><date when="2002">2002</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">The Cleft palate-craniofacial journal</title><title level="j" type="abbreviated">Cleft palate craniofac. j.</title><idno type="ISSN">1055-6656</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cleft</term><term>Computerized axial tomography</term><term>Concomitant disease</term><term>Diagnosis</term><term>Exploration</term><term>Face</term><term>Infant</term><term>Lip</term><term>Maxillary</term><term>Morphological change</term><term>Palate</term><term>Performance evaluation</term><term>Technique</term><term>Tridimensional image</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Fissure congénitale</term><term>Lèvre</term><term>Association morbide</term><term>Palais</term><term>Diagnostic</term><term>Evaluation performance</term><term>Technique</term><term>Exploration</term><term>Tomodensitométrie</term><term>Image tridimensionnelle</term><term>Anomalie morphologique</term><term>Maxillaire</term><term>Nourrisson</term><term>Face</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Objective: Three-dimensional (3-D) morphological changes in the maxilla of patients with cleft lip and palate (CLP) have been recorded, mainly using two-dimensional cast analyses. Although these seem to be insufficient, no standardized 3-D method has been developed until now. In this study, accuracy, precision, and validity of a newly developed 3-D digital computer-aided procedure to visualize and metrically analyze the growth of the edentulous maxilla of infants with CLP have been evaluated. Patients: The method was applied to 10 infants with complete unilateral CLP. Interventions: Consecutive casts of the maxilla (1 week and 3, 6, and 12 months) of each patient were optically measured with a 3-D laser scanner. Following digitizing, the casts were computer reconstructed, aligned, and superimposed using specialized computer software. The distances between the surfaces were measured. Additionally, the surfaces were segmented perpendicular to the alveolar crest, the reference points being C1, C1', C2, C2', and I. The volumes of the resulting segments were determined and compared with one another. Results: The newly developed analysis enables a visualization of the extent and direction of morphological changes in the maxilla of infants with CLP. With this method it is possible to quantify these changes of the volume of defined alveolar segments. Conclusions: The 3-D analysis developed is an ideal tool for the examination of 3-D morphological changes in the edentulous maxilla of patients with CLP. The results will serve as the starting point for a longitudinal study on the efficacy of different methods, not only of presurgical infant orthopedics but also of surgical procedures.</div></front></TEI><affiliations><list><country><li>Allemagne</li></country><region><li>District de Cologne</li><li>Rhénanie-du-Nord-Westphalie</li></region><settlement><li>Bonn</li></settlement></list><tree><noCountry><name sortKey="Keilig, Ludger" sort="Keilig, Ludger" uniqKey="Keilig L" first="Ludger" last="Keilig">Ludger Keilig</name></noCountry><country name="Allemagne"><region name="Rhénanie-du-Nord-Westphalie"><name sortKey="Braumann, Bert" sort="Braumann, Bert" uniqKey="Braumann B" first="Bert" last="Braumann">Bert Braumann</name></region><name sortKey="Bourauel, Christoph" sort="Bourauel, Christoph" uniqKey="Bourauel C" first="Christoph" last="Bourauel">Christoph Bourauel</name><name sortKey="J Ger, Andreas" sort="J Ger, Andreas" uniqKey="J Ger A" first="Andreas" last="J Ger">Andreas J Ger</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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