Initial results regarding force exertion during rapid maxillary expansion in children.
OBJECTIVE
We developed a method to measure the forces occurring during rapid maxillary expansion and carried out the University of Ulm rapid maxillary expansion method, similar to that of Chatellier and Chateau, in ten patients.


RESULTS
The forces occurring on the maxilla increased up to 120 N. There was considerable variation in force level from patient to patient. After "rupture" of the midpalatal suture, the forces decreased. The remaining forces seemed to be the result from stress on soft tissue and bone.
Sander
Christian
C
University of Ulm, Department of Orthodontics, Oberer Eselsberg, 89081 Ulm, Germany. Dr.Sander@imail.de
Hüffmeier
Stefan
S
Sander
Franz Martin
FM
Sander
Franz Günter
FG
D000293:Adolescent; D001732:Bite Force; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D009967:Orthodontic Appliances; D010155:Palatal Expansion Technique; D005082:Physical Exertion; D013314:Stress, Mechanical