scholarly journals Occlusion, Orthodontic Treatment and Temporomandibular Disorders: Myths and Scientific Evidences

10.5772/30949 ◽  
2012 ◽  
Author(s):  
Ephraim Winocur ◽  
Alona Emodi-Perlm
Keyword(s):  
Temporomandibular Disorders ◽  
Orthodontic Treatment

scholarly journals Orthodontic Treatment and Craniocervical Posture in Patients with Temporomandibular Disorders: An Observational Study

2021 ◽  
Vol 18 (6) ◽  
pp. 3295
Author(s):  
Maria Paço ◽  
José Alberto Duarte ◽  
Teresa Pinho
Keyword(s):  
Temporomandibular Disorders ◽  
Orthodontic Treatment ◽  
Hyoid Bone ◽  
Craniofacial Morphology ◽  
P Value ◽  
Skeletal Class ◽  
Treatment Data ◽  
Phase Data ◽  
Condylar Displacement ◽  
Clinical Records

Orthodontic treatment acts through the application of forces and/or by stimulating and redirecting the functional forces within the craniofacial complex. Considering the interrelationship between craniomandibular and craniocervical systems, this intervention may alter craniocervical posture. Thus, our aim is to (a) compare craniocervical posture, hyoid bone position, and craniofacial morphology before, after, and also in the contention phase at least one year after the orthodontic treatment, in patients with temporomandibular disorders and (b) to verify whether the presence of condylar displacement, the skeletal class, or the facial biotype interferes with the abovementioned outcomes. To do so an observational, analytical, longitudinal, and retrospective design study was carried out. A non-probabilistic convenience sampling method was applied. The sample consisted of clinical records of patients diagnosed with temporomandibular disorders in order to compare pre-orthodontic treatment with post-orthodontic treatment (n = 42) and contention phase data (n = 26). A cephalometric analysis of several variables was performed. The p-value was set as 0.05. When the pre- and post-orthodontic treatment data were analyzed, there were statistically significant changes in variables concerning craniocervical posture (CV angle, C0-C1, and AA-PNS) and also concerning hyoid bone position (C3-Rgn). When pre- and post-orthodontic treatment and contention phase data were analyzed the variables concerning craniocervical posture (C0-C1, CVT/Ver, NSL/OPT, NSL/CVT, NSL/Ver; OPT/CVT, OPT/Ver) and facial biotype had statistically significant changes. This allowed us to conclude that in the sample studied, there were significant differences regarding hyoid bone position (pre- versus post-orthodontic treatment) and craniocervical posture (pre- versus post-orthodontic versus contention), with the craniocervical posture being prone to return to basal values. The presence of condylar displacement was found to significantly increase the H-H1 distance in the three moments of evaluation. Facial biotype was found to significantly increase the NSL/Ver angle on hypodivergent compared to hyperdivergent in the contention phase.

scholarly journals Determining Risk Factors for the Development of Temporomandibular Disorders during Orthodontic Treatment

2020 ◽  
Vol 10 (22) ◽  
pp. 8216
Author(s):  
Alessandro Ugolini ◽  
Federico Garbarino ◽  
Luca Di Vece ◽  
Francesca Silvestrini-Biavati ◽  
Valentina Lanteri
Keyword(s):  
Risk Factors ◽  
Temporomandibular Disorders ◽  
Orthodontic Treatment ◽  
Complex Disease ◽  
Myofascial Pain ◽  
Significant Risk ◽  
Female Gender ◽  
Structured Interview ◽  
Disc Displacement ◽  
One Year

Temporomandibular disorders (TMD) represent a complex disease with a multifactorial etiology. Despite several studies on the subject, a causal relationship between orthodontic treatment and different forms of TMD has not been established. The aim of this study was to analyze the effect of orthodontic treatment on two aspects of TMD: myofascial pain and disc displacement. This retrospective cohort study followed 224 orthodontic adult patients at three points in time: before treatment (T0), immediately after treatment (T1), and one year after treatment (T2). Disc displacement and myofascial pain were evaluated through a clinical assessment and with a semi-structured interview, along with headache, neck, and shoulder pain parameters and behavioral and somatic accompanying symptoms. Multivariate logistic regression was used to identify risk factors that could influence the development of TMD in these patients. There was a non-significant increase in disc displacement during orthodontic treatment, which mostly resolved after completion of treatment. Myofascial pain scores worsened during treatment, but improved when compared with the baseline once treatment was complete (T0 = 51.3%, T1 = 64.6%, T2 = 44.9%). Female gender (aOR = 1.9, CI 95%, 1.23–2.36), the presence of somatic symptoms (aOR = 3.6, CI 95%, 2.01–5.84), and symptoms of anxiety or depression (aOR = 2.2, CI 95%, 1.14–4.51) were significant risk factors associated with the development of TMD. There is a low and not significant risk of TMD development during orthodontic treatment. When TMD occurred, they resolved within 1 year of the end of treatment.

scholarly journals Muscle type temporomandibular disorders and orthodontics

2018 ◽  
Vol 21 (3) ◽  
pp. 306
Author(s):  
H. Gil
Keyword(s):  
Temporomandibular Disorders ◽  
Orthodontic Treatment ◽  
Autogenic Training ◽  
Muscle Type ◽  
Masticatory Apparatus

With painful temporomandibular disorders, the physiotherapist treatment makes it possible to treat the pains and dysfunctions of the masticatory apparatus. When these are diagnosed before orthodontic treatment, it is necessary to treat them so that they do not interfere with the dentofacial orthopaedics treatment. In this perspective, lingual rehabilitation according to the method «Fournier» is associated with Schultz Autogenic Training.

scholarly journals Orthodontics is temporomandibular disorder–neutral

2015 ◽  
Vol 86 (4) ◽  
pp. 649-654 ◽  
Author(s):  
Daniele Manfredini ◽  
Edoardo Stellini ◽  
Antonio Gracco ◽  
Luca Lombardo ◽  
Luca Guarda Nardini ◽  
...  
Keyword(s):  
Temporomandibular Disorders ◽  
Joint Pain ◽  
Orthodontic Treatment ◽  
Normal Values ◽  
Temporomandibular Disorder ◽  
Control Group ◽  
Disc Displacement ◽  
History Of ◽  
Clinically Significant ◽  
Age And Sex

ABSTRACT Objectives:  To assess if subjects with a clinical diagnosis of temporomandibular disorders (TMDs) have a similar prevalence of orthodontic history as a population of TMD-free individuals and to assess if those subjects who have a history of ideal orthodontics have fewer symptoms than those with a history of nonideal orthodontics. Materials and Methods:  Two groups of age- and sex-matched individuals belonging to either a study (“TMD”) or a control group were recruited. Subjects who underwent orthodontic treatment were classified as having a history of ideal or nonideal orthodontics based on the current presence of normal values in five reference occlusal features. Results:  The correlation with a history of orthodontic treatment was not clinically significant for any of the TMD diagnoses (ie, muscle pain, joint pain, disc displacement, arthrosis), with Phi (Φ) coefficient values within the −0.120 to 0.058 range. Within the subset of patients with a history of orthodontics, the correlation of ideal or nonideal orthodontic treatment with TMD diagnoses was, in general, not clinically relevant or was weakly relevant. Conclusions:  Findings confirmed the substantial absence of clinically significant effects of orthodontics as far as TMD is concerned. The very low correlation values of a negative or positive history of ideal or nonideal orthodontics with the different TMD diagnoses suggest that orthodontic treatment could not have a true role for TMD.

Twenty-year cohort study of health gain from orthodontic treatment: Temporomandibular disorders

2009 ◽  
Vol 135 (6) ◽  
pp. 692.e1-692.e8 ◽  
Author(s):  
Tatiana V. Macfarlane ◽  
Pamela Kenealy ◽  
H. Anne Kingdon ◽  
Bengt O. Mohlin ◽  
J. Richard Pilley ◽  
...  
Keyword(s):  
Cohort Study ◽  
Temporomandibular Disorders ◽  
Orthodontic Treatment ◽  
Health Gain
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