Document Detail

A perspective of the Crozat appliance with case reports of its present use.
MedLine Citation:
PMID:  3860009     Owner:  NLM     Status:  MEDLINE    
Dr. Crozat of New Orleans first publicly described his removable appliance in 1919. He led a small study club for years, sharing his ideas with a few fellow orthodontists, but published only one article. A.T. Wiebrecht, a general dentist from Milwaukee, studied with Dr. Crozat for many years. In 1966, Wiebrecht published his book, Crozat Appliances in Maxillofacial Orthopedics, and for the first time information about the Crozat appliance was made available to all dentists. Dr. Wiebrecht's goal was to treat all patients to Pont's index; therefore, he advocated lateral expansion of molars and premolars. Wiebrecht's philosophy of expansion appeals to many gnathologists and pedodontists. Dr. Crozat's goal was to solve crowding by the distal movement of molars. As he moved the molars distally, expansion of the appliance was necessary because the bony dental arch itself is wider in the posterior regions. He did expand the lower premolars if they were lingually positioned, but he did not expand the upper canines or premolars as a routine part of his treatment. Thus, two entirely different applications of this appliance have been developed. This article examines the history of Dr. Crozat and his appliance, discusses the development and divergence in its use, and demonstrates this divergence with a few selected, documented case reports.
W S Parker
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  American journal of orthodontics     Volume:  88     ISSN:  0002-9416     ISO Abbreviation:  Am J Orthod     Publication Date:  1985 Jul 
Date Detail:
Created Date:  1985-08-05     Completed Date:  1985-08-05     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0370501     Medline TA:  Am J Orthod     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1-21     Citation Subset:  D; IM    
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MeSH Terms
Activator Appliances*
Equipment Design
Malocclusion, Angle Class II / therapy
Middle Aged
Orthodontic Appliances, Removable*
Temporomandibular Joint Dysfunction Syndrome / therapy
Tooth Movement / instrumentation,  methods

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

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