Research has shown that there is no correlation between TMJ problems and orthodontic treatment (Manfredini 2016).
In fact, many patients have found that orthodontic treatment actually improves preexisting TMJ issues, as the teeth become harmoniously aligned in way that allows the jaw to function properly.
The etiology of TMD (Temporomandibular Joint Disorder) is complex and can be multifactorial; it may be related to myofascial pain, disk displacement or dislocation, trauma, or parafunctional habits.
TMJ problems typically present during the teenage years, which coincides with the timing that many patients undergo orthodontic treatment. For this reason, some patients may attribute the development of TMD to braces, although their timing was just coincidental.
Manfredini D, Stellini E, Gracco A, Lombardo L, Nardini LG, Siciliani G. Orthodontics is temporomandibular disorder-neutral. Angle Orthod. 2016 Jul;86(4):649-54. doi: 10.2319/051015-318.1. Epub 2015 Oct 29. PMID: 26512757; PMCID: PMC8601478.
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