Publications by authors named "Jan Hourfar"

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Prevalence of malocclusions requiring treatment according to the KIG classification : A multipart cross-sectional study over a 20-year period in the district of Viersen/North Rhine.
Gero Stefan Michael Kinzinger, Jan Hourfar, Jörg Alexander Lisson

J Orofac Orthop· November 2025

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Gender- and age-dependent prevalence of malocclusions requiring orthodontic treatment according to the KIG classification. A cross-sectional study over a 20-year-period from the district of Viersen/North rhine.
Gero Stefan Michael Kinzinger, Jan Hourfar, JörgAlexander Lisson

Clin Oral Investig· October 2025

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Age-dependent effects of Delaire facemask therapy for class III malocclusion : Impact on maxillary sutures and palatal morphology.
Gero Stefan Michael Kinzinger, Jan Hourfar, Joana Nanina Sommer, Jörg Alexander Lisson

J Orofac Orthop· July 2025

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Morphological changes in the palate after transverse expansion with removable orthodontic plate appliances : Short-term effects and follow-up stability.
Gero Stefan Michael Kinzinger, Jan Hourfar, Hee Jung Kim, Jörg Alexander Lisson

J Orofac Orthop· June 2025

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Age-dependent prevalence of malocclusions requiring treatment according to the KIG classification : A multipart cross-sectional study over a 10-year period from the district of Viersen/North Rhine.
Gero Stefan Michael Kinzinger, Jan Hourfar, Andrijana Maletic, Jörg Alexander Lisson

J Orofac Orthop· October 2024

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Upper airways changes associated with orthodontic molar distalization by Pendulum appliance in adolescent patients: a multicenter retrospective cephalometric study.
Marco Serafin, Gero Kinzinger, Jan Hourfar, Valentina Mantellini, Rosamaria Fastuca

Head Face Med· October 2024

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Prevalence of KIG-grades 3-5 in an orthodontic practice in North Rhine Westphalia compared with results of the DMS•6 and with KZBV data.
Gero Stefan Michael Kinzinger, Jan Hourfar, Jörg Alexander Lisson

Head Face Med· January 2024

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Outcome differences after orthodontic camouflage treatment in hypo- and hyperdivergent patients - A retrospective cephalometric investigation.
Jan Hourfar, Gero Stefan Michael Kinzinger, Linda Frye, Jörg Alexander Lisson

Clin Oral Investig· December 2023

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Frequency and severity of malocclusions in patients with statutory health insurance in a German orthodontic practice in North Rhine Westphalia - a multi-part cross-sectional study over a 20-year period.
Gero Stefan Michael Kinzinger, Jan Hourfar, Andrijana Maletic, Jörg Alexander Lisson

Clin Oral Investig· December 2023

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Effects of fixed functional orthodontic treatment in hypodivergent and hyperdivergent class II patients-a retrospective cephalometric investigation.
Jan Hourfar, Gero Stefan Michael Kinzinger, Linda Frye, Jörg Alexander Lisson

Clin Oral Investig· August 2023

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Age-dependent effects on palate volume and morphology during orthodontic RME treatment.
Gero Stefan Michael Kinzinger, Jörg Alexander Lisson, Charlotte Buschhoff, Jan Hourfar

Clin Oral Investig· June 2023

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Age-dependent interactions of maxillary sutures during RME and their effects on palatal morphology : CBCT and dental cast analysis.
Gero Stefan Michael Kinzinger, Jan Hourfar, Charlotte Buschhoff, Frank Heller, Heike Maria Korbmacher-Steiner

J Orofac Orthop· November 2022

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Impact of rapid maxillary expansion on palatal morphology at different dentition stages.
Gero Stefan Michael Kinzinger, Jörg Alexander Lisson, Charlotte Buschhoff, Jan Hourfar, Heike Korbmacher-Steiner

Clin Oral Investig· July 2022

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Efficiency of the skeletonized Pendulum K appliance for non-compliance maxillary molar distalization : A clinical pilot study.
Gero Stefan Michael Kinzinger, Jan Hourfar, Jörg Alexander Lisson

J Orofac Orthop· November 2021

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Ultra short time to Echo (UTE) MRI for cephalometric analysis-Potential of an x-ray free fast cephalometric projection technique.
Ciamak Abkai, Jan Hourfar, Jörg Glockengießer, Johannes Ulrici, Erich Hell

PLoS One· November 2021

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Changes of epiglottis and hyoid bone position after orthodontic treatment with cast splint fixed functional appliances.
Jan Hourfar, Jörg Alexander Lisson, Gero Stefan Michael Kinzinger

Clin Oral Investig· March 2021

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Differential skeletal and dental effects after orthodontic treatment with bite jumping appliance or activator: a retrospective cephalometric study.
Jan Hourfar, Gero Stefan Michael Kinzinger, Luisa Euchner, Jörg Alexander Lisson

Clin Oral Investig· July 2020

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Occlusal height difference between maxillary central and lateral incisors: should aesthetic perception influence bracket placement?
Jan Hourfar, Dirk Bister, Björn Ludwig, Gero Kinzinger, Jörg Alexander Lisson

Head Face Med· February 2019

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Are morphologic and topographic alterations of the mandibular fossa after fixed functional treatment detectable on tomograms? Visual classification and morphometric analysis.
Gero Stefan Michael Kinzinger, Jörg Alexander Lisson, Dania Booth, Jan Hourfar

J Orofac Orthop· November 2018

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Soft tissue profile changes after Functional Mandibular Advancer or Herbst appliance treatment in class II patients.
Jan Hourfar, Jörg Alexander Lisson, Ulrich Gross, Linda Frye, Gero Stefan Michael Kinzinger

Clin Oral Investig· March 2018

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Insertion torque values and success rates for paramedian insertion of orthodontic mini-implants : A retrospective study.
Bruno Di Leonardo, Björn Ludwig, Jörg Alexander Lisson, Luca Contardo, Rossano Mura, Jan Hourfar

J Orofac Orthop· March 2018

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Mandibular fossa morphology during therapy with a fixed functional orthodontic appliance : A magnetic resonance imaging study.
Gero Stefan Michael Kinzinger, Jan Hourfar, Cornelia Kober, Jörg Alexander Lisson

J Orofac Orthop· March 2018

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Effects of combined orthodontic-orthognathic treatment for class II and III correction on posterior airway space : Comparison of mono- and bignathic osteotomies.
Jan Hourfar, Gero Stefan Michael Kinzinger, Hartmut Feifel, Verena Maria Vehr, Jörg Alexander Lisson

J Orofac Orthop· November 2017

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Influence of interradicular and palatal placement of orthodontic mini-implants on the success (survival) rate.
Jan Hourfar, Dirk Bister, Georgios Kanavakis, Jörg Alexander Lisson, Björn Ludwig

Head Face Med· June 2017

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Anatomic landmarks and availability of bone for placement of orthodontic mini-implants for normal and short maxillary body lengths.
Jan Hourfar, Dirk Bister, Christopher J Lux, Bouthayna Al-Tamimi, Björn Ludwig

Am J Orthod Dentofacial Orthop· May 2017

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