A description of the clinical application of the landmark Ribbon Arch appliance by an orthodontist whose first clinical experience was with that appliance, before the Edgewise mechanism was presented to the specialty.
Mouth breathing is an inevitable result of obstruction of the nasal airway. Associated changes in mandibular posture and the function of related muscles have long been postulated to cause undesirable changes in facial growth. Evidence for such a cause-effect relationship is reviewed and illustrated with clinical records.
Presented at the 1981 meeting of the Midwest component of the Edward H. Angle Society of Orthodontists.
Extraoral appliances have been typically employed to deliver force systems to move teeth in directions parallel to the sagittal plane of the face. Their potential for concurrently producing transverse (buccal or lingual) movement has still not been fully explored.
This study considers theoretical and experimental aspects of the magnitude and direction of such forces and related moments.
Nitinol has been reported to be more susceptible to electrolytic dissolution than stainless steel. This study compares corrosion of the two metals under clinical conditions and finds no significant difference.
Data and tables are provided to enable exact comparison of the effects of material and cross section on the key parameters of orthodontic wire performance.