limbomax
Leanbo
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warning: I have no clue how to format so don't call me out for how bad it is
(also first high effort thread)
Watch this video with Dr Bill Hang talking about clenching/ molars in contact
Its interesting how he mentions that clenching will impact the maxilla upward and cause the jaw to swing forward. I find this to be true looking at myself. I clenched as a youngster, never had great oral posture, however my maxilla is still very forwards. I do NOT condone clenching, however, I think this goes to show again how our bodies can be constantly changed through various forces, including our facial form.
the theory:
Downsides of clenching:
So how does the theory work if clenching doesn't?:
Now if you do try this, Be watchful for TMJ/ear pain while doing this though, I'm not sure if there are some occlusal conditions that would contraindicate temporalis activation (you may also feel other harmless sensations near the ear, actual TMJ pain would feel as if it came from inside the ear).
sources:
http://portlandtmjclinic.com/etiology/introduction
(also first high effort thread)
Watch this video with Dr Bill Hang talking about clenching/ molars in contact
Its interesting how he mentions that clenching will impact the maxilla upward and cause the jaw to swing forward. I find this to be true looking at myself. I clenched as a youngster, never had great oral posture, however my maxilla is still very forwards. I do NOT condone clenching, however, I think this goes to show again how our bodies can be constantly changed through various forces, including our facial form.
the theory:
There is good clenching and bad clenching. In terms of posture, engaging the masseters is never good, whereas engaging the temporalii almost always is, since the former doesn't have any postural function whereas the latter does:
Downsides of clenching:
A Reddit user 
shared the unfortunate changes he had seen from constant clenching of the masseters. His jawline had become very bent:
shared the unfortunate changes he had seen from constant clenching of the masseters. His jawline had become very bent:
Like I said there is good clenching and bad clenching. Masseters alone are unlikely to be able to cause CCW rotation, because they are attached to the same structures that you are trying to rotate. You would pointlessly end up pulling the zygos and the gonion towards each other without achieving much else (apart from increase in mandibular and zygomatic mass). As for the temporalii, I can't speak for chewing, but postural activation of the temporalii is not going to pull your palate backwards. I know, it sounds counter-intuitive, since after all you are biting backwards, but take note of how the temporalii sit on top of sphenoid and the sphenoid-frontal-temporal sutures:
So what will happen with temporalis activation is not just about the palate being pulled backwards as it first seems, but instead, at the same time the mandible is -- by using the maxille as leverage -- going to be pulling the sphenoid/cranial base downwards by the temporalis... the total outcome of which will be an internal rotation of sorts, something akin to what is illustrated in the following files:
So what will happen with temporalis activation is not just about the palate being pulled backwards as it first seems, but instead, at the same time the mandible is -- by using the maxille as leverage -- going to be pulling the sphenoid/cranial base downwards by the temporalis... the total outcome of which will be an internal rotation of sorts, something akin to what is illustrated in the following files:
Now if you do try this, Be watchful for TMJ/ear pain while doing this though, I'm not sure if there are some occlusal conditions that would contraindicate temporalis activation (you may also feel other harmless sensations near the ear, actual TMJ pain would feel as if it came from inside the ear).
sources:
http://portlandtmjclinic.com/etiology/introduction
