Editor's Summary and Q&amp;A

Macfarlane, Tatiana V.; Kenealy, Pamela; Kingdon, HenryS.; Mohlin, Bengt; Piley, J. Richard; Richmond, Steven; Shaw, William C.

doi:10.1016/j.ajodo.2009.02.009

Cited by 18 publications

(3 citation statements)

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“…This study showed that women had almost double the odds of developing TMD compared with men. The study by McFarlane et al [27] demonstrated slightly higher odds in a three-year follow-up period (OR = 2.45). However, this decreased during further follow-up visits.…”

Section: Discussionmentioning

confidence: 89%

“…Age has been demonstrated as a risk factor for development of TMD in previous studies. In a longitudinal study, McFarlane et al [27] found that young adults and adolescents, especially between the ages of 19 and 20, demonstrated a higher risk of persistent TMD following orthodontic treatment. In the current study, we found that a one unit increase in age increased the odds of developing TMD by 50%.…”

Section: Discussionmentioning

confidence: 99%

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

et al. 2020

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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.

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Section: Discussionmentioning

confidence: 89%

Section: Discussionmentioning

confidence: 99%

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

et al. 2020

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“…"Although scientific studies do not strongly link orthodontic therapy with the development or prevention of TMD (temporomandibular disorders), it is difficult to imagine a specialty that routinely and significantly changes a patient's occlusal condition would not have a powerful effect on the masticatory structures and their functions" [1]. This was pointed out by Okeson, and reflects some of the controversies regarding the effects of orthodontic treatment on TMDs [2][3][4][5][6][7][8][9][10][11][12][13]. Though some studies identify small associations between orthodontics and TMDs, they fail to isolate a single unique aspect that can either refute or support this association [3].…”

Section: Introductionmentioning

confidence: 99%

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

Paço

Duarte

Pinho

2021

IJERPH

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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.

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Temporomandibular Disorders in German and Chinese Adolescents

Hirsch

2010

J Orofac Orthop

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Editor's Summary and Q&A

Cited by 18 publications

References 0 publications

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

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

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

Temporomandibular Disorders in German and Chinese Adolescents

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