Scientific article

Maxillary molar distalization with noncompliance intramaxillary appliances in Class II malocclusion. A systematic review

Published inThe Angle orthodontist, vol. 78, no. 6, p. 1133-1140
Publication date2008

OBJECTIVE: To use published data to evaluate quantitatively the dental effects of noncompliance intramaxillary appliances in individuals with Class II malocclusion. MATERIALS AND METHODS: A literature search was carried out identifing 13 prospective or retrospective clinical studies matching inclusion criteria. Only appliances with conventional anchorage designs were considered for the review. The data provided in these publications were grouped and analyzed in terms of molar distalization, tipping and vertical movements, and incisor and premolar mesialization, tipping, and vertical movements. RESULTS: Maxillary first molars showed distal crown movement and tipping greater than the mesial crown movement and tipping shown by incisors and premolars. Vertical movements of incisors and premolars were in general extrusive, but molars were intrusive or extrusive, depending on the study and the type of appliance used. Appliances that acted palatally seemed to display a smaller distal tipping movement, as well as smaller incisor and premolar mesial tipping movements, when compared with those that acted buccally. Friction-free appliances, namely the pendulum, produced a large amount of mesiodistal movement and tipping, if no therapeutic uprighting activation was applied. CONCLUSIONS: Noncompliance intramaxillary molar distalization appliances all act by distalizing molars with a concomitant and unavoidable loss of anchorage, as revealed by incisor and premolar mesial movement. Buccal acting and palatal acting appliances demonstrate almost similar results, with palatal acting appliances showing less tipping. Friction-free palatal acting appliances appear to produce better molar distalizing effects, but with a concomitant notable loss of anchorage.

  • Bicuspid/pathology
  • Humans
  • Incisor/pathology
  • Malocclusion, Angle Class II/therapy
  • Maxilla
  • Molar/pathology
  • Orthodontic Appliance Design
  • Orthodontic Appliances
  • Prospective Studies
  • Retrospective Studies
  • Tooth Movement/instrumentation
Citation (ISO format)
ANTONARAKIS, Gregory, KILIARIDIS, Stavros. Maxillary molar distalization with noncompliance intramaxillary appliances in Class II malocclusion. A systematic review. In: The Angle orthodontist, 2008, vol. 78, n° 6, p. 1133–1140. doi: 10.2319/101507-406.1
Main files (1)
Article (Accepted version)
ISSN of the journal0003-3219

Technical informations

Creation04/07/2009 9:58:00 AM
First validation04/07/2009 9:58:00 AM
Update time03/14/2023 3:04:21 PM
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