
patricknotstar
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The cosmetic benefits are meme tier unless u have a severely narrow palateTbh it is saddens me to make this post but MSE + FM is probably not very good. There have been loads of false information put forth by orthodontists regarding MSE and its capabilities along with other people's false claims who have gotten MSE and its effects. (@varbrah who claimed 5 mm forward growth while only pulling for 8 hours a day while never providing the xrays he claimed he got JFL)
The first blow to MSE was realizing it was not a really bone borne like claimed, and that it is just a regular tooth borne puller (basically the effect as the og @CopeAndRope puller)
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Comparison of two maxillary protraction protocols: tooth-borne versus bone-anchored protraction facemask treatment - Progress in Orthodontics
Background Protraction facemask has been advocated for treatment of class III malocclusion with maxillary deficiency. Studies using tooth-borne rapid palatal expansion (RPE) appliance as anchorage have experienced side effects such as forward movement of the maxillary molars, excessive...progressinorthodontics.springeropen.com
Here is a study done on facemask with RME, and the FM is attached to the hyrax. 2.9 mm of forward growth was noted after treatment
They also did a bone anchored modified hyrax group using mini implants just like MSE, and pulled from the same location MSE pulls from.
Guess how much forward growth the "bone anchored" group got?
3mm, brutal
so adding "bone anchorage" gave .1 more mm jfl, other studies that are truly bone anchored, such as BAMP use 1/3 of the force of tooth borne facepullers, and get double the forward growth.
This was the first downfall of MSE + FM, secondly it was the once again falsely propagated idea that MSE opens up the circummaxillary sutures, and the disarticulation of the sutures allows for much faster protraction.
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Effects of rapid maxillary expansion on the cranial and circummaxillary sutures
The aim of this study was to determine whether the orthopedic forces of rapid maxillary expansion cause significant quantitative changes in the cranial and the circummaxillary sutures.Twenty patients (mean age, 12.3 ± 1.9 years) who required rapid ...www.ncbi.nlm.nih.gov
Rapid maxillary expansion produced significant width increases in the intermaxillary, internasal, maxillonasal, frontomaxillary, and frontonasal sutures, whereas the frontozygomatic, zygomaticomaxillary, zygomaticotemporal, and pterygomaxillary sutures showed nonsignificant changes.
Basically palate expansion does jack shit for the circummaxillary sutures (the sutures where forward growth is generated at), there are also many studies that contemplate if palate expansion even aids in maxilla protraction, and while still controversial it is leaning towards the side that it does not.
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The effects of maxillary protraction therapy with or without rapid palatal expansion: a prospective, randomized clinical trial - PubMed
The results of this continuing 5-year clinical trial indicate that early facemask therapy, with or without palatal expansion, is effective to correct skeletal Class III malocclusions.pubmed.ncbi.nlm.nih.gov
So now, MSE doesn't do shit to open the sutural system + it is tooth borne, so it really has no advantages over a puller like CopeAndRope's, but any form of tooth borne protraction is really shit for anyone over the age of 13 if there isn't an actual underbite present
It was a good run boyos, but it seems the holy grail of looksmaxxing has yet to be found
disclaimer: mse is still okay in niche scenarios like if u have a generally narrow face, but if u don't, you wouldnt benefit from maxilla widening that much, and facepulling isnt viable, so there would be really no reason to get it unless it was for breathing, esp considering when u have to diastemamaxx for several months