Key Six in Late (Permanent) Mixed Dentition Class II Correction: DISTALIZATION MECHANICS By Randy K. Newby, DDS PART 1 “I rarely use distalization appliances such as the Horseshoe Jet Mesial-Distalslider or Newby/Anderson Distalizer in early Class II cases, as there are other straightforward techniques to treat these patients. However, I routinely use these appliances in adolescent and adult permanent dentition cases.” A s described by Dr. Leonard J. Carapezza, DMD, Key Six in early Class II correction is distaliza-tion mechanics. 1 I rarely use distalization appliances such as the Horseshoe Jet (Fig. 1-A), Mesial-Distalslider (Fig. 1-B) 3 or Newby/Anderson Distalizer (Fig. 1-C) in early (7-9 years) Class II cases as there are other straightforward techniques to treat these patients. However, I routinely use these appliances in adolescent and adult permanent dentition cases. Dr. Carapezza states that “90% of early Class II malocclusions are dento-alveolar and typically present with a half Class II (3.5mm).” 1 Most of these cases present with mesially rotated maxillary first molars (Fig. 2). Distal rotating these molars (Fig. 3-A) generally will correct a half Class II molar platform to a Class I plat-form (Fig. 3-B). 8 Fall 2016 JAOS
Journal of the American Orthodontic Society Fall 2016: Page 8
