Document Detail

Effects of 2 types of facemasks on condylar position.
MedLine Citation:
PMID:  20685536     Owner:  NLM     Status:  MEDLINE    
INTRODUCTION: The aim of this study was to compare Delaire and Grummons protraction facemasks with a new articulator system (Amtech MG1, American Technologies, Brazil) that can record condylar positions. METHODS: Thirty-four patients treated with protraction facemask therapy were divided into 2 groups; 18 were treated with the Delaire facemask (DFM) and 16 with the Grummons facemask (GFM). The observation periods were 8.5 months for the DFM group and 10 months for the GFM group. Mandibular position indicator (MPI) recordings were taken with the new articulator system and evaluated before and after the protraction facemask therapies. RESULTS: MPI recordings in the sagittal plane showed forward and downward movement from centric relation to maximum intercuspal position for both condyles at the beginning of treatment for most patients. After treatment, the discrepancy between centric relation and maximum intercuspation was less in the DFM group than in the GFM group. However, more compressive movement of the condyles through the glenoid fossa was observed in the DFM group. CONCLUSIONS: Although the centric slide amount decreased more with the Delaire facemask compared with the Grummons facemask, patients treated with the Delaire facemask must be monitored for signs and symptoms of temporomandibular joint disorder.
Hakan El; Semra Ciger
Related Documents :
8135206 - The validity of the prediction of soft tissue profile changes after lefort i osteotomy ...
9503136 - Early versus late treatment of crowded first premolar extraction cases: postretention e...
17605486 - Treatment and posttreatment effects of quad-helix/crib therapy of dentoskeletal open bite.
19962606 - Effects of the pendulum appliance, cervical headgear, and 2 premolar extractions follow...
21323416 - Long-term outcome and health status in decompressive craniectomized patients with intra...
10647106 - Combined salter innominate osteotomy with femoral shortening versus other methods of tr...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics     Volume:  137     ISSN:  1097-6752     ISO Abbreviation:  Am J Orthod Dentofacial Orthop     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-08-05     Completed Date:  2010-08-23     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8610224     Medline TA:  Am J Orthod Dentofacial Orthop     Country:  United States    
Other Details:
Languages:  eng     Pagination:  801-8     Citation Subset:  D; IM    
Copyright Information:
2010 American Association of Orthodontists. Published by Mosby, Inc. All rights reserved.
Department of Orthodontics, Hacettepe University, Ankara, Turkey.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Dental Articulators*
Extraoral Traction Appliances* / adverse effects
Malocclusion, Angle Class III / therapy*
Mandibular Condyle / physiopathology*
Orthodontics, Corrective / instrumentation*
Statistics, Nonparametric
Temporomandibular Joint Disorders / etiology*

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

Previous Document:  Efficacy of a filled-resin sealant in preventing decalcification during orthodontic treatment.
Next Document:  Nickel release from new conventional stainless steel, recycled, and nickel-free orthodontic brackets...