
doi: 10.1179/bjo.12.1.40
pmid: 3882147
The introduction of a preformed removable quadhelix appliance with curved rotation sheaths for insertion and removal has overcome many of the clinical problems associated with the fixed quadhelix appliance. The design, fitting and activation of the appliance are described. Various applications and modifications are discussed.
Palatal Expansion Technique, Tooth Movement Techniques, Orthodontic Appliances, Removable, Humans, Equipment Design, Molar
Palatal Expansion Technique, Tooth Movement Techniques, Orthodontic Appliances, Removable, Humans, Equipment Design, Molar
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