Yummyinmytummy
100 women are not worth a single testicle -《◇》
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Deformation of the zygomaticomaxillary and nasofrontal sutures during bone-anchored maxillary protraction and reverse-pull headgear treatments: An ex-vivo study - PubMed
Our study shows a higher magnitude of sutural separation in BAMP than in RPHG. The pattern of sutural deformation is consistent with a forward displacement of the midface in BAMP compared with an upward and backward rotation in the RPHG. Rotation of the maxilla was also present in some of the...
www.ncbi.nlm.nih.gov
“This study aimed to assess and compare the deformation of 1 circumaxillary suture (zygomaticomaxillary suture [ZMS]) and 1 facial suture (nasofrontal suture [NFS]) during BAMP and reverse-pull headgear (RPHG) treatment.”
“The study was performed ex vivo on 15 pig heads.”
“Our study shows a higher magnitude of sutural separation in BAMP than in RPHG. The pattern of sutural deformation is consistent with a forward displacement of the midface in BAMP compared with an upward and backward rotation in the RPHG. Rotation of the maxilla was also present in some of the subjects who underwent BAMP.”
As to be expected, any sort of appliance which is anchored to the maxilla will be more effective in generating a larger force on the desired area. BAMP is more effective in terms of suture separation and bringing the maxilla forward.
However, RPHG was shown to also induce ccw (upwards and backwards) rotation in the pigs. This is very good news to me and disproves certain ideas that facepulling appliances causes downwards and forward growth.