Document Detail

A novel approach in treatment of maxillary deficiency by reverse chin cup.
MedLine Citation:
PMID:  20687313     Owner:  NLM     Status:  MEDLINE    
The aim of this study was to evaluate the effectiveness of a newly designed small-sized extraoral appliance on Class III malocclusion and maxillary deficiency in growing patients. The case series included 10 patients (4 males, 6 females) with a mean age of 8.9 +/- 1.72 years who suffered from maxillary deficiency. All the patients were treated with an extra oral appliance which was named as reverse chin cup. This appliance consisted of a high pull cap, a chin cup with two vertical hooks, a removable appliance on the upper jaw, and two elastics which connected the hooks of the cup to the hooks of the removable appliance. The mean treatment time was 24 +/- 9 months. Mean SNA and ANB were significantly increased by 3.1 degrees +/- 1.6 degrees and 3.5 degrees +/- 1.7 degrees, respectively (p<0.001). The level of significance was set at P<0.05. The increase of SNA angle and ANS-PNS distance (p<0.001) and the decrease of nasolabial angle (P<0.004) indicated that the reverse chin cup was effective in moving the maxilla in a forward position. Moreover, the smaller size of this appliance makes it more favorable for patients.
Rahman Showkatbakhsh; A Jamilian
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  International journal of orthodontics (Milwaukee, Wis.)     Volume:  21     ISSN:  1539-1450     ISO Abbreviation:  Int J Orthod Milwaukee     Publication Date:  2010  
Date Detail:
Created Date:  2010-08-06     Completed Date:  2010-09-14     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101147228     Medline TA:  Int J Orthod Milwaukee     Country:  United States    
Other Details:
Languages:  eng     Pagination:  27-31     Citation Subset:  D    
School of Dentistry, Shahid Beheshti Medical Sciences University.
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MeSH Terms
Cephalometry / methods
Extraoral Traction Appliances*
Follow-Up Studies
Lip / pathology
Malocclusion, Angle Class III / therapy*
Mandible / pathology
Maxilla / abnormalities*,  pathology
Nasal Bone / pathology
Orthodontic Appliance Design*
Orthodontic Appliances, Removable
Retrospective Studies
Sella Turcica / pathology
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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