Now showing 1 - 6 of 6
  • 2020Journal Article
    [["dc.bibliographiccitation.journal","Clinical Oral Investigations"],["dc.contributor.author","Quast, Anja"],["dc.contributor.author","Santander, Petra"],["dc.contributor.author","Leding, Johanna"],["dc.contributor.author","Klenke, Daniela"],["dc.contributor.author","Moser, Norman"],["dc.contributor.author","Schliephake, Henning"],["dc.contributor.author","Meyer-Marcotty, Philipp"],["dc.date.accessioned","2021-04-14T08:30:47Z"],["dc.date.available","2021-04-14T08:30:47Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1007/s00784-020-03730-6"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/83373"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","1436-3771"],["dc.relation.issn","1432-6981"],["dc.title","Orthodontic incisor decompensation in orthognathic therapy—success and efficiency in three dimensions"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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  • 2018Journal Article
    [["dc.bibliographiccitation.artnumber","15"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Head & Face Medicine"],["dc.bibliographiccitation.volume","14"],["dc.contributor.author","Klenke, Daniela"],["dc.contributor.author","Quast, Anja"],["dc.contributor.author","Prelog, Martina"],["dc.contributor.author","Holl-Wieden, Annette"],["dc.contributor.author","Riekert, Maximilian"],["dc.contributor.author","Stellzig-Eisenhauer, Angelika"],["dc.contributor.author","Meyer-Marcotty, Philipp"],["dc.date.accessioned","2019-07-09T11:45:54Z"],["dc.date.available","2019-07-09T11:45:54Z"],["dc.date.issued","2018"],["dc.description.abstract","Abstract Background Juvenile idiopathic arthritis (JIA) is often accompanied by pathomorphological changes to the temporomandibular joint (TMJ). By analyzing orthodontical orthopantomograms of JIA patients the aims of the study were a) classification of condyle changes, b) quantification of bony asymmetries of condylar destruction and c) detection of relationships between disease duration and TMJ-involvement. Patients/Methods 46 caucasian JIA-patients (28 female; 18 male; < 16.0 years) were enrolled, each joint (n = 92) was morphologically assessed by means of orthopantomogram, quantitatively analysed and compared with duration of general disease. Condyle morphology was assessed using the Billiau scale for severity of destruction [1]. The quantitative analysis was based on ratios of condyle, ramus and mandible height. Results Patients were divided into groups (Group I – slightly affected, n = 36; Billiau severity 0–2; condyle findings: X-ray normal, condyle erosions, condylar flattening; Group II – severely affected, N = 10; Billiau severity 3–4; condyle findings: condylar flattenings and erosions, unilateral/bilateral complete loss of condyles), based on morphological analysis of condylar destruction. Duration of disease was significantly longer in Group II (8.9 ± 5.2 years) than in Group I (4.6 ± 4.7 years). Asymmetries of condyle, ramus and mandible height, quantitatively analysed by contralateral comparison, were significantly more marked in patients of Group II than of Group I. Conclusions Orthopantomogram imaging can be used in orthodontics clinical routine to detect TMJ-pathologies and is an important reference for monitoring progression of JIA. Classification into severe and slightly affected TMJ is possible by analysis of condylar pathomorphology. An association between degree of destruction, extent of lower jaw asymmetry and disease duration is suggested by the results."],["dc.identifier.doi","10.1186/s13005-018-0173-5"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15337"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59330"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.intern","In goescholar not merged with http://resolver.sub.uni-goettingen.de/purl?gs-1/15405 but duplicate"],["dc.publisher","BioMed Central"],["dc.rights","CC BY 4.0"],["dc.rights.holder","The Author(s)."],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","TMJ pathomorphology in patients with JIA-radiographic parameters for early diagnosis-"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2021Journal Article
    [["dc.bibliographiccitation.journal","Clinical Oral Investigations"],["dc.contributor.author","Meyer-Marcotty, Philipp"],["dc.contributor.author","Klenke, Daniela"],["dc.contributor.author","Knocks, Larissa"],["dc.contributor.author","Santander, Petra"],["dc.contributor.author","Hrasky, Valentina"],["dc.contributor.author","Quast, Anja"],["dc.date.accessioned","2021-06-01T09:42:54Z"],["dc.date.available","2021-06-01T09:42:54Z"],["dc.date.issued","2021"],["dc.description.abstract","Abstract Objectives Adult orthodontic treatment, especially in patients over 40 years, is steadily increasing. One causal factor for the treatment need in this age group is periodontal breakdown. The aim of this study was to detect correlations between periodontal problems and orthodontic parameters in interdisciplinary patients. Methods This observational, cross-sectional study included 118 patients over 40 years (51 men/67 women; mean age, 58.03 years) classified into three groups according to periodontal breakdown (group I, controls; group II, moderate periodontitis; group III, severe periodontitis). Clinical periodontal and orthodontic parameters as well as the index of orthodontic treatment need (IOTN) were assessed and compared between the groups. Results A gradual deterioration of all periodontal and orthodontic parameters according to periodontal bone loss (lowest values in group I; highest values in group III) was observed. Especially groups I and III differed significantly regarding the overjet ( p < 0.001) and the little indices of the maxilla ( p < 0.001) and mandible ( p < 0.010). The IOTN was highest in group III: 90% of the patients with severe periodontitis were classified to have moderate to very great treatment need. Conclusions The higher the degree of periodontal breakdown was, the more severe were overjet, overbite, irregularity of the anterior teeth, and the orthodontic treatment need. Clinical relevance Adult patients over 40 years represent a challenge for an orthodontic/periodontal treatment approach with high incidence of pathologic tooth migration, orthodontic treatment need, and periodontal breakdown. Therefore, this special patient collective requires a focus in clinical orthodontics and research."],["dc.identifier.doi","10.1007/s00784-021-03936-2"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/85383"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-425"],["dc.relation.eissn","1436-3771"],["dc.relation.issn","1432-6981"],["dc.title","The adult orthodontic patient over 40 years of age: association between periodontal bone loss, incisor irregularity, and increased orthodontic treatment need"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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  • 2022Journal Article
    [["dc.bibliographiccitation.journal","Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie"],["dc.contributor.author","Klenke, Daniela"],["dc.contributor.author","Santander, Petra"],["dc.contributor.author","Vehring, Charlotte"],["dc.contributor.author","Quast, Anja"],["dc.contributor.author","Sommerlath Sohns, Jan"],["dc.contributor.author","Krohn, Sebastian"],["dc.contributor.author","Meyer-Marcotty, Philipp"],["dc.date.accessioned","2022-06-01T09:39:20Z"],["dc.date.available","2022-06-01T09:39:20Z"],["dc.date.issued","2022"],["dc.description.abstract","Abstract Objective Due to increasing numbers of adult patients presenting to orthodontic practices, an increase in incidental findings on diagnostic X‑rays, which are the cornerstone of orthodontic diagnostics, is expected. This raises the clinically relevant question of whether an age effect exists regarding prevalence, localisation and severity of incidental findings on orthodontic diagnostic X‑rays. Materials and methods The clinical, primarily retrospective study examined pathological incidental findings from 600 orthopantomograms (OPT) and lateral cephalogram (LC) images in two groups of orthodontic patients (group I: 150 children/adolescents, age 11.89 ± 2.47 years; group II: 150 adults, age 27.03 ± 10.42 years). Prevalence, localisation and severity of the findings were recorded based on a classification sheet. The assessment was done by three experienced examiners following a systematic approach along the nine locations: mandible, maxilla, dentition, paranasal sinuses, temporomandibular joint, cranial base, orbit, cervical spine, soft tissues. Results In all, 1458 incidental findings were detected, with 66% of the findings having occurred away from the dentition. There was a significant age effect ( p  < 0.001) with respect to the prevalence of incidental findings (group II—adults 1026 findings—OPT: 566/LC 460 vs. group I—children/adolescents 432 findings—OPT: 221/LC 211). Regarding localisation, incidental findings in adults commonly occurred in the dentition, paranasal sinuses and mandibular regions. Furthermore, analysis of the LC images revealed significantly more incidental findings in the area of the cranial base and cervical spine in adults ( p  < 0.001, p  = 0.003). Categorisation according to the severity of the incidental findings showed that 33% of the incidental findings needed further diagnostic investigation and possibly treatment by other specialities. Conclusion Diagnostic assessment using orthodontic diagnostic X‑rays results in a high prevalence of incidental findings away from the dentition. Particularly in adults, a large number of incidental findings outside the dental/alveolar region may be expected on orthodontic diagnostic X‑rays. Thus, a structured approach during diagnostic assessment is required to minimise the extent to which incidental findings of clinical relevance are overlooked."],["dc.description.abstract","Zusammenfassung Ziel Da sich immer mehr erwachsene Patienten in kieferorthopädischen Praxen vorstellen, ist mit einer Zunahme von Nebenbefunden auf diagnostischen Röntgenaufnahmen zu rechnen, die den Eckpfeiler der kieferorthopädischen Diagnostik darstellen. Daraus ergibt sich die klinisch relevante Frage, ob ein Alterseffekt bezĂĽglich Prävalenz, Lokalisation und Schweregrad von Nebenbefunden in der kieferorthopädischen Röntgendiagnostik existiert. Material und Methoden Die klinische, primär retrospektive Studie untersuchte pathologische Nebenbefunde von insgesamt 600 OPG(Orthopantomogramm)- und FRS(Fernröntgenseiten)-Aufnahmen anhand zweier Gruppen kieferorthopädischer Patienten (Gruppe I – 150 Kinder/Jugendliche; Alter 11,89 ± 2,47 Jahre; Gruppe II â€“ 150 Erwachsene; 27,03 ± 10,42 Jahre). Prävalenz, Lokalisation und Schweregrad der Befunde wurden anhand eines Klassifikationsbogens aufgezeichnet. Die Befundung sah ein systematisches Vorgehen entlang von 9 Lokalisationen – Mandibula, Maxilla, Dentition, Nasennebenhöhlen, Kiefergelenk, Schädelbasis, Orbita, Halswirbelsäule, Weichgewebe – durch 3 erfahrene PrĂĽfärzte vor. Ergebnisse Insgesamt konnten 1458 Nebenbefunde bei allen Patienten nachgewiesen werden, wobei 66 % der Nebenbefunde abseits der Dentition auftraten. Es zeigte sich ein signifikanter Alterseffekt ( p  < 0,001) bezĂĽglich der Prävalenz der Nebenbefunde (Gruppe II – Erwachsene 1026 Befunde â€“ OPG: 566/FRS 460 vs. Gruppe I – Kinder/Jugendliche 432 Befunde â€“ OPG: 221/FRS 211). BezĂĽglich der Lokalisation waren die Nebenbefunde bei Erwachsenen am häufigsten in den Regionen Dentition, Nasennebenhöhlen und Mandibula zu finden. Zudem ergaben sich in der Analyse der FRS-Aufnahmen bei Erwachsenen im Bereich der Schädelbasis und der Halswirbelsäule signifikant mehr Nebenbefunde ( p  < 0,001, p  = 0,003). Die Kategorisierung nach Schweregrad der Nebenbefunde zeigte, dass 33 % der Nebenbefunde eine weiterfĂĽhrende Diagnostik und ggf. Therapie durch weitere Fachdisziplinen erforderlich machten. Zusammenfassung Die kieferorthopädische Röntgendiagnostik bietet ein groĂźes Befundungsareal, in dem Nebenbefunde abseits der Dentition mit hoher Prävalenz auftreten können. Insbesondere bei Erwachsenen ist von einer Vielzahl von Nebenbefunden auch auĂźerhalb der dentalen/alveolären Region auf kieferorthopädischen Röntgenbildern auszugehen. Daher ist ein strukturiertes Vorgehen während der Befundung notwendig, um das Ăśbersehen von Nebenbefunden mit klinischer Relevanz zu minimieren."],["dc.identifier.doi","10.1007/s00056-022-00399-2"],["dc.identifier.pii","399"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/108444"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-572"],["dc.relation.eissn","1615-6714"],["dc.relation.issn","1434-5293"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Prevalence of incidental findings in adult vs. adolescent patients in the course of orthodontic X-ray diagnostics"],["dc.title.translated","Prävalenz von Nebenbefunden erwachsener vs. jugendlicher Patienten im Rahmen kieferorthopädischer Röntgendiagnostik"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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  • 2022Journal Article
    [["dc.bibliographiccitation.journal","Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie"],["dc.contributor.author","Olbrisch, Carolin"],["dc.contributor.author","Santander, Petra"],["dc.contributor.author","Moser, Norman"],["dc.contributor.author","Klenke, Daniela"],["dc.contributor.author","Meyer-Marcotty, Philipp"],["dc.contributor.author","Quast, Anja"],["dc.date.accessioned","2022-09-01T09:51:15Z"],["dc.date.available","2022-09-01T09:51:15Z"],["dc.date.issued","2022"],["dc.description.abstract","Abstract\n \n Purpose\n We aimed to comprehensively analyse a possible correlation between skeletal malocclusions, gender and mandibular characteristics in all three dimensions in adults and to identify mandibular characteristics that are typical for extreme skeletal patterns.\n \n \n Methods\n A 3D model of the skull was calculated in 111 adult patients (mean age = 27.0 ± 10.2 years; 49 women, 62 men) from available computed tomography or cone beam computed tomography scans of their heads. Based on the 3D models, the skeletal patterns were examined in (a) the transversal dimension regarding asymmetry according to menton deviation, (b) the sagittal dimension according to the Wits appraisal and (c) the vertical dimension according to the maxillomandibular plane angle. The mandibular characteristics assessed were linear (ramus height and width, body length), angular (ramus, gonial and body angle) and volumetric (ramus/mandibular volume, body/mandibular volume) parameters.\n \n \n Results\n \n No correlation between transversal skeletal asymmetry and mandibular characteristics were found, while sagittal (\n F\n (16, 174) = 3.32,\n p\n  < 0.001, η\n 2\n  = 0.23) and vertical (\n F\n (16, 174) = 3.18,\n p\n  < 0.001, η\n 2\n  = 0.23) skeletal patterns were shown to have a significant effect on the mandible. Gender correlated with mandibular characteristics independently from the skeletal pattern. Discriminant analysis revealed that class II and III patients differed in ramus and body angle with class II patients showing higher angles (ramus angle: class II = 89.8 ± 3.9° vs. class III = 84.4 ± 4.8°; body angle: class II = 87.7 ± 4.8° vs. class III = 82.1 ± 5.2°). Hypo- and hyperdivergent patients were discriminated by gonial angle, body angle and body/mandibular volume with hyperdivergent patients having a greater gonial and body angle and body/mandibular volume (gonial angle: hypodivergent = 114 ± 9.3° vs. hyperdivergent = 126.4 ± 8.6°; body angle: hypodivergent = 82.9 ± 4.4° vs. hyperdivergent = 87.7 ± 6.5°; body/mandibular volume: hypodivergent = 72.4 ± 2.7% vs. hyperdivergent = 76.2 ± 2.6%).\n \n \n \n Conclusion\n When analysing 3D data for treatment planning of adult patients, the orthodontist should pay attention to angular and volumetric characteristics of the mandible to identify extreme skeletal sagittal or vertical malocclusions."],["dc.description.abstract","Zusammenfassung\n \n Zielsetzung\n Das Ziel der vorliegenden Studie lag in einer umfassenden dreidimensionalen Analyse einer möglichen Korrelation zwischen skelettalen Malokklusionen, dem Geschlecht und mandibulären Charakteristika bei Erwachsenen und der Identifizierung von Mandibulacharakteristika, welche typischerweise bei extremen Gesichtsschädelaufbauten auftreten.\n \n \n Methoden\n Von 111 erwachsenen Patienten (mittleres Alter = 27,0 ± 10,2 Jahre; 49 Frauen, 62 Männer), bei denen ein Computertomographie- oder ein digitaler Volumentomographie-Scan des Kopfes vorlag, wurde ein 3‑D-Modell des Schädels erstellt. Anhand dessen wurden der Gesichtsschädelaufbau in a) der transversalen Dimension bezĂĽglich möglicher Asymmetrien anhand der Menton-Deviation, b) der sagittalen Dimension anhand des Wits-Wertes und c) der vertikalen Dimension anhand des Interbasiswinkels klassifiziert. Die Mandibulacharakteristika wurden linear (Ramushöhe und -breite, Corpuslänge), angulär (Ramus, Kiefer- und Corpuswinkel) und volumetrisch (Ramus/Mandibula-Volumen, Corpus/Mandibula-Volumen) beurteilt.\n \n \n Ergebnisse\n \n Es wurde kein Zusammenhang zwischen einer transversalen Gesichtsasymmetrie und den Mandibulacharakteristika gefunden. Jedoch zeigte sich, dass der sagittale (\n F\n (16, 174) = 3,32,\n p\n  < 0,001, η\n 2\n  = 0,23) und vertikale (\n F\n (16, 174) = 3,18,\n p\n  < 0,001, η\n 2\n  = 0,23) Gesichtsschädelaufbau einen signifikanten Einfluss auf die Mandibula hatte. Das Geschlecht beeinflusste unabhängig vom Gesichtsschädelaufbau die Charakteristika der Mandibula.\n \n Klasse-II- und –III-Patienten unterschieden sich signifikant bezĂĽglich Ramus- und Corpuswinkel (Ramuswinkel: Klasse II = 89,8 ± 3,9° vs. Klasse III = 84,4 ± 4,8°; Corpuswinkel: Klasse II = 87,7 ± 4,8° vs. Klasse III = 82,1 ± 5,2°). Patienten mit skelettal offenem und tiefem Biss unterschieden sich signifikant hinsichtlich Kieferwinkel, Corpuswinkel und Corpus/Mandibula-Volumen (Kieferwinkel: Tiefbiss = 114 ± 9,3° vs. offener Biss = 126,4 ± 8,6°; Corpuswinkel: Tiefbiss = 82,9 ± 4,4° vs. offener Biss = 87,7 ± 6,5°; Corpus/Mandibula-Volumen: Tiefbiss = 72,4 ± 2,7 % vs. offener Biss = 76,2 ± 2,6 %),\n \n \n Schlussfolgerung\n Um extreme sagittale oder vertikale Dysgnathien zu erkennen, sollte der Kieferorthopäde bei der Analyse von 3‑D-Daten fĂĽr die Behandlungsplanung erwachsener Patienten auf anguläre und volumetrische Charakteristika der Mandibula achten."],["dc.identifier.doi","10.1007/s00056-022-00419-1"],["dc.identifier.pii","419"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/113918"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-597"],["dc.relation.eissn","1615-6714"],["dc.relation.issn","1434-5293"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Three-dimensional mandibular characteristics in skeletal malocclusion"],["dc.title.alternative","A cross-sectional study"],["dc.title.translated","Dreidimensionale Charakteristika der Mandibula bei skelettalen Malokklusionen"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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  • 2022Journal Article
    [["dc.bibliographiccitation.journal","Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie"],["dc.contributor.author","Wiechens, Bernhard"],["dc.contributor.author","Quast, Anja"],["dc.contributor.author","Klenke, Daniela"],["dc.contributor.author","Brockmeyer, Phillipp"],["dc.contributor.author","Schliephake, Henning"],["dc.contributor.author","Meyer-Marcotty, Philipp"],["dc.date.accessioned","2022-04-01T10:01:13Z"],["dc.date.available","2022-04-01T10:01:13Z"],["dc.date.issued","2022"],["dc.description.abstract","Abstract Objectives Reduced occlusal function is a main characteristic of orthognathic patients. The present study aimed to investigate the extent of therapy-induced functional improvements in occlusal function using a digital diagnostic method. Methods This prospective clinical study included 41 orthognathic patients (24 women and 17 men, median age 27.26 ± 8.2 years) and 10 control patients (5 women and 5 men, median age 29.8 ± 13.5 years) with neutral skeletal and dental configurations. The patients were divided into classes I, II and III based on their cephalometry. Digital occlusal registrations in habitual occlusion in an upright sitting position were taken before (T1) and after (T2) therapy using the T‑Scan Novus (Tekscan, South Boston, MA, USA) application. Results Class II and III patients showed a significantly less efficient occlusal pattern than the untreated controls regarding total antagonism ( p  < 0.001), time of occlusion ( p  = 0.004), occlusal asymmetry ( p  = 0.001), anterior antagonism ( p  < 0.001) and posterior antagonism ( p  < 0.001). After therapy, the occlusal pattern increased in both therapy groups, where class III patients became indistinguishable from the controls, and class II patients differed only in posterior antagonism ( p  = 0.035). Conclusions The digital occlusal registration method proved to be a useful diagnostic tool and provided new insights into therapeutic effects in orthognathic patients. By precisely adjusting the occlusal function, masticatory performance improved significantly. Clinical relevance Severe malocclusion leads to a significantly lower masticatory performance for patients, which can be improved by orthognathic therapy and captured by digital occlusal registration."],["dc.identifier.doi","10.1007/s00056-022-00382-x"],["dc.identifier.pii","382"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/105627"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-530"],["dc.relation.eissn","1615-6714"],["dc.relation.issn","1434-5293"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Evaluation of occlusal function during orthognathic therapy"],["dc.title.alternative","A prospective clinical trial using a digital registration method"],["dc.title.translated","Bewertung der okklusalen Funktion während der kombiniert kieferorthopädisch-kieferchirurgischen Therapie"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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