Document Detail

Choosing a pre-adjusted orthodontic appliance prescription for anterior teeth.
MedLine Citation:
PMID:  17545296     Owner:  NLM     Status:  MEDLINE    
A common orthodontic task is to correct anterior tooth position using brackets whose torque, tip and in-out are pre-adjusted. Bracket prescription greatly influences final aesthetics and function. Pre-adjusted orthodontic brackets have in-built prescriptions of torque, tip and in-out which are optimized for average cases. Refinement of tooth position can be achieved by archwire adjustment or archwire auxiliaries. Modifications to bracket position such as inversion can also help achieve individual tooth movements. Planning bracket position must be considered at the outset of treatment to achieve the maximum benefit. A number of clinical scenarios will be discussed including: a Class II division 1 malocclusion with lateral incisors palatally displaced, and another case with absent lateral incisors for space closure. Also, Class III malocclusions with consideration given to: canine angulation; a palatally displaced canine requiring labial movement; absent upper central incisors (space closure), and finally, a Class III case where incisor inclination requires consideration. By using a typodont to illustrate some of the points, this article aims to (1) show how three pre-adjusted orthodontic bracket systems (Andrews, Roth and MBT) vary significantly in their ability to influence tooth position and appearance; (2) inform clinicians how modified bracket position can influence tooth position.
Eleanor Thickett; Nigel G Taylor; Trevor Hodge
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of orthodontics     Volume:  34     ISSN:  1465-3125     ISO Abbreviation:  J Orthod     Publication Date:  2007 Jun 
Date Detail:
Created Date:  2007-06-04     Completed Date:  2007-07-19     Revised Date:  2009-07-14    
Medline Journal Info:
Nlm Unique ID:  100957268     Medline TA:  J Orthod     Country:  England    
Other Details:
Languages:  eng     Pagination:  95-100     Citation Subset:  D; IM    
Royal Bournemouth Hospital, Castle Lane East, Bournemouth, Dorset BH7 7DW, UK.
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MeSH Terms
Anodontia / therapy
Cuspid / pathology*
Incisor / abnormalities,  pathology*
Malocclusion / therapy
Malocclusion, Angle Class II / therapy
Malocclusion, Angle Class III / therapy
Orthodontic Appliance Design*
Orthodontic Brackets*
Orthodontic Space Closure / instrumentation,  methods
Orthodontic Wires
Patient Care Planning
Tooth Eruption, Ectopic / therapy
Tooth Movement / instrumentation*,  methods
Comment In:
J Orthod. 2008 Mar;35(1):59; author reply 59-60   [PMID:  18287397 ]
Erratum In:
J Orthod. 2009 Mar;36(1):70

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

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