Author Topic: impact of rotation on airways?  (Read 1218 times)

lookism

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impact of rotation on airways?
« on: October 22, 2020, 03:10:12 PM »
i heard that counterclockwise movement of the jaw widens the airways the most - does that man clockwise rotation could even decrease the width of the airway?

kavan

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Re: impact of rotation on airways?
« Reply #1 on: October 22, 2020, 08:59:50 PM »
Theoretically speaking if a clockwise rotation (anterior downgraft) was done to the same extent a CCW rotation posterior downgraft can be done, equal extents of rotations would result in perhaps what you are thinking. But pragmatically, an anterior downgraft (CW-r) never reaches the extent that a posterior downgraft (CCW-r) can reach.

Airway opening is a function of the extent of a rotation. But extent of rotation, in turn, is a function of of the longest distance of a WEDGE shape and where the wedge shape is found. For example (to keep it simple) a posterior downgraft for CCW rotation is (basically) the shape of a wedge  where the longest distance is at the back of the wedge and the back of the wedge is at the very back of the maxilla. So, one could have a distance of that section of the wedge of approx 10mm . Now an anterior downgraft for CW rotation would have the longest distance to a wedge to the FRONT of the maxilla which, for example, could be done for more tooth show. But for more tooth show, the EXTENT of the longest distance of the wedge shape to do it would NEVER be as much as 10mm as is the case with some CCW posterior downgrafts. Like no one would need an anterior downgraft of 10mm for more tooth show.
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andyyyy37

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Re: impact of rotation on airways?
« Reply #2 on: November 11, 2020, 02:20:01 PM »
does rotating the jaws mean that we are moving it forward? I really want to lengthen my face a lot so should I ask that they don't rotate it for maximum length?

GJ

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Re: impact of rotation on airways?
« Reply #3 on: November 12, 2020, 08:01:15 AM »
What I've been told by surgeons is that clockwise should enlarge the upper airway, and CCW should enlarge the lower airway (more important for apnea).
Millimeters are miles on the face.