Objective: The direction and amount of retrusive movement may be correlated with the amount of joint space and the maximum intercuspal position of the condyle. The aim of this study was to identify any such correlation using an ultrasonic jaw motion analyzer and digital volumetric tomographic (DVT) scans.
Methods: Thirty-five dental students were selected as subjects. DVT scans were obtained using a next-generation i-CAT CBCT unit, and the direction and amount of retrusive movement were measured with a 3-D analyzer.
Results: Spearman Rho correlation tests showed no correlation between the amount of retrusive movement and the condyle position and joint space on either the right or left side.
Discussion: There is sufficient reason to suggest that retrusive movement of the condyle does not occur in isolation but is influenced by glenoid fossa bone morphology.
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http://dx.doi.org/10.1080/08869634.2017.1333219 | DOI Listing |
Turk J Orthod
September 2024
Retired, Ankara, Turkey.
Objective: The present study aimed to evaluate the effect of rapid maxillary expansion (RME) and face mask treatment on the upper airway in patients with maxillary retrusion in two dimensions using digital cephalograms and volumetric evaluation using acoustic rhinometric measurements.
Methods: A total of 22 individuals with a concave profile and skeletal and dental Class III malocclusion during growth and development with a mean age of 9.9±1.
J Oral Maxillofac Surg
November 2024
Head of the Institute of Maxillofacial Surgery, Teknon Medical Center, Barcelona, Spain; Head of the Department of Oral and Maxillofacial Surgery, Universitat International de Catalunya, Barcelona, Spain.
Background: Retrusive profiles show an appearance of aging with an under-projected vermilion and pronounced nasolabial folds due to deficient bone support.
Purpose: A study was made of the association between orthognathic surgery and changes in the nasolabial and vermilion areas in patients with retrusive profiles.
Study Design, Setting, Sample: A retrospective cohort study evaluated patients subjected to bimaxillary surgery according to the Barcelona Line (BL) protocol during 2021 at Teknon Medical Center (Barcelona, Spain).
Dent J (Basel)
June 2024
Department of Orofacial Pain, School of Dentistry, National and Kapodistrian University of Athens, 11527 Athens, Greece.
Background: The objective of this work was to investigate the association between the function of the stomatognathic system and migraine presence through an instrumental functional analysis in a group of diagnosed migraine patients and a control group.
Methods: This study included 50 individuals in each group. A jaw-tracking analysis was performed using Cadiax 4.
Korean J Orthod
May 2024
Department of Orthodontics, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, B.
Objective: This study aimed to determine the maxillary and mandibular basal bone regions and explore the three-dimensional positional relationship between the dentition and basal bone regions in patients with skeletal Class I and Class II malocclusions with mandibular retrusion.
Methods: Eighty patients (40 each with Class I and Class II malocclusion) were enrolled. Maxillary and mandibular basal bone regions were determined using cone-beam computed tomography images.
Dent J (Basel)
April 2024
Galilee College of Dental Sciences, Department of Orthodontics, Galilee Medical Center, Nahariya 2210001, Israel.
Unlabelled: This retrospective study compared Class II orthodontic non-extraction treatment using Carriere Motion Appliance (CMA) and Twin Block (TB) appliances.
Methods: The treatment of 38 patients was assessed. Pre- and post-treatment cephalometric radiographs were analyzed to evaluate skeletal, dental, and soft tissue treatment outcomes and efficacy.
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