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The effect of mandibular tongue cribs on dentoskeletal changes in patients with Class II Division 1 malocclusions.

AbstractAIM:
To investigate the effect of a modified tongue crib appliance in Class II Division 1 patients with anterior tongue thrust and mandibular deficiency.
METHODS:
Twenty-three patients (14 females, 9 males) with a mean age of 10.09 ± 1.02 years, a moderate Class II Division 1 occlusion due to a mandibular deficiency, and a mean overbite of -1.1 ± 0.8 mm were treated with a mandibular tongue crib device. Pre- and posttreatment lateral cephalograms were obtained and traced, and various angular and linear variables were measured. These measurements were compared using the paired t test.
RESULTS:
The statistical assessment indicated that SNB, facial angle, B-VL, Pog-VL, and interincisal angle increased significantly. IMPA, 1-SN, ANB, and Wits appraisal were significantly decreased (P<.05). The changes of Jarabak Index, SN-MP, SNA, and Y-axis were not significant. In addition, the overjet was reduced.
CONCLUSION:
During the mixed dentition phase, a tongue crib appliance in the mandible is helpful to impede tongue thrust and stimulate mandibular growth.
AuthorsShahin Emami Meibodi, Seyed Amir Reza Fatahi Meybodi, Elham Morshedi Meybodi
JournalWorld journal of orthodontics (World J Orthod) Vol. 11 Issue 1 Pg. 23-6 ( 2010) ISSN: 1941-6741 [Electronic] United States
PMID20209173 (Publication Type: Journal Article)
CopyrightCOPYRIGHT © 2009 BY QUINTESSENCE PUBLISHING CO, INC.
Topics
  • Cephalometry (methods)
  • Child
  • Chin (pathology)
  • Dentition, Mixed
  • Female
  • Humans
  • Incisor (pathology)
  • Male
  • Malocclusion, Angle Class II (therapy)
  • Mandible (growth & development, pathology)
  • Maxilla (pathology)
  • Nasal Bone (pathology)
  • Orthodontic Appliance Design
  • Orthodontic Appliances, Removable
  • Overbite (therapy)
  • Sella Turcica (pathology)
  • Tongue Habits (therapy)

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