Crossbite: Difference between revisions

Jump to navigation Jump to search
VisualWikitext
m (Bot: Automated text replacement (-{{SIB}} + & -{{EH}} + & -{{EJ}} + & -{{Editor Help}} + & -{{Editor Join}} +))
 
(30 intermediate revisions by 2 users not shown)
Line 1: Line 1:
{{Infobox_Disease |
  Name          = {{PAGENAME}} |
  Image          = Crossbite 005.JPG|
  Caption        = Crossbite <br> <small>(Image courtesy of Berna Zorkun DMD and copylefted)</small>|
  DiseasesDB    = |
  ICD10          = |
  ICD9          = |
  ICDO          = |
  OMIM          = |
  MedlinePlus    = |
  eMedicineSubj  = |
  eMedicineTopic = |
  MeshID        = |
}}
{{SI}}
{{SI}}
'''Editor in Chief:''' Berna Zorkun DMD [mailto:bernazorkun@gmail.com]


{{EH}}


==Overview==
==Overview==
Line 7: Line 22:
'''Crossbite''' is an occlusal irregular condition where '''a lower tooth has a more buccal position than the antagonist upper tooth'''. Crossbite can involve a single tooth or a group of teeth. Crossbite can be classified as anterior or posterior.  
'''Crossbite''' is an occlusal irregular condition where '''a lower tooth has a more buccal position than the antagonist upper tooth'''. Crossbite can involve a single tooth or a group of teeth. Crossbite can be classified as anterior or posterior.  


* Anterior crossbite can also be referred as negative overjet, and is typical of class III skeletal relations (Progenism). * Posterior crossbite is often correlated to a narrow [[maxilla]] and upper dental arch. A posterior cross-bite can be unilateral or bilateral.  
* Anterior crossbite can also be referred as negative overjet, and is typical of class III skeletal relations (Progenism).  
* Posterior crossbite is often correlated to a narrow [[maxilla]] and upper dental arch. A posterior cross-bite can be unilateral or bilateral.  


Unilateral cross-bite often determines a lateral shift of the mandibular position, which can become structural if left untreated for a long time during growth, leading to [[skeletal]] asymmetries.
Unilateral cross-bite often determines a lateral shift of the mandibular position, which can become structural if left untreated for a long time during growth, leading to [[skeletal]] asymmetries.
==Etiology==
A crossbite may be associated with a pathological condition. A cleft palate patient may present both anterior and posterior crossbites with a narrow palate. Arthritis, acromegaly, Duchenne’s muscular dystrophy, condylar hyperplasia and osteochondroma are other factors. The majority of anterior crossbites a single tooth or a few teeth and are caused by dental factors: A congenitally-caused eruption pattern of the maxillary anteriors. Trauma to the primary dentition which leads to the displacement of the primary or permanent tooth bud. Trauma to permanent teeth that result in their being displaced by luxation.
Other factors include;
* Stomach sleeping posture
* Digit or pacifier sucking habits
* Oral respiration
* Low tongue position
* Tongue thrusting
==Further Classification and Related Terminology==
===Buccal Crossbite===
Buccal crossbite is due to the buccal displacement of the affected tooth or teeth as it relates to the antagonistic tooth or teeth in the posterior segments of the arch.
===Lingual Crossbite===
Lingual crossbite is due to the lingual displacement of the mandibular affected tooth or teeth as it relates to the antagonistic tooth or teeth.
===Palatal Crossbite===
Palatal crossbite is due to the palatal displacement of the maxillary affected tooth or teeth as it relates to the antagonistic tooth or teeth.
===Complete Mandibular Buccal Crossbite===
Complete mandibular buccal crossbite is present when all the mandibular teeth are lingually positioned to the maxillary teeth due to a narrower mandibular arch than the maxillary arch.
===Complete Maxillary Palatal Crossbite===
Complete maxillary palatal crossbite is present when all the maxillary teeth are palatal to the mandibular arch due to the narrower maxillary arch.
Both complete mandibular buccal crossbite and complete maxillary palatal crossbite could be referred as scissors-bite.
===Complete Crossbite===
Complete crossbite is found when all teeth in one arch are positioned either inside or outside to the all teeth in the opposing arch.
===Scissors-bite===
Scissors-bite is present when one or more of the adjacent posterior teeth are either positioned completely buccally or lingually to the antagonistic teeth and exhibit a vertical overlap.
===Anterior crossbite===
Anterior crossbite is a malocclusion in which one or more of the upper anterior teeth occlude lingually to the mandibular incisors; the lingual malpositions of one or more maxillary anterior teeth in relation to the mandibular anterior teeth when the teeth are in centric relation occlusion.
===Posterior Crossbite===
Posterior Crossbite is one or more posterior teeth locked in an abnormal relation with the opposing teeth of the opposite arch; can be either buccal or a lingual cross-bite and may be accompanied by a shift of the mandible.
===Centric occlusion===
Centric occlusion is a static reproducible position of the mandible in which there is maximal contact of the inclined planes of the opposing teeth with balanced, unstrained relationship in the temporomandibular articulation.
==Treatment==


There are several therapies that can be used to correct a cross bite:  
There are several therapies that can be used to correct a cross bite:  


* Multibrackets therapy ([[braces]]),
* Multibrackets therapy (braces)  
* Quad-Helix,
* Quad-Helix  
* Hirex,
* Hirex  
* Removable Plates,
* Removable Plates  
* Invisalign,
* Invisalign
* Delaire Mask.
* Delaire Mask


The correct therapy should be decided by the [[orthodontist]] depending on the type and severity of the crossbite.
The correct therapy should be decided by the [[orthodontist]] depending on the type and severity of the crossbite.
Line 26: Line 100:
<gallery>
<gallery>
Image:crossbite.jpg|Unilateral Posterior Crossbite
Image:crossbite.jpg|Unilateral Posterior Crossbite
Image:.jpg|
Image:KNJA-Hered. Progenie Vater.JPG|Crossbite
Image:KNJA-Hered. Progenie.jpg|
Image:KNJA-Hered. Progenie.JPG|Crossbite
</gallery>
 
 
<gallery>
Image:Crossbite 001.JPG|Crossbite <br> <small>(Image courtesy of Berna Zorkun DMD and copylefted)</small>
Image:Crossbite 002.JPG|Crossbite <br> <small>(Image courtesy of Berna Zorkun DMD and copylefted)</small>
Image:Crossbite 003.JPG|Crossbite <br> <small>(Image courtesy of Berna Zorkun DMD and copylefted)</small>
</gallery>
 
 
<gallery>
Image:Crossbite 004.JPG|Crossbite <br> <small>(Image courtesy of Berna Zorkun DMD and copylefted)</small>
Image:Crossbite 005.JPG|Crossbite <br> <small>(Image courtesy of Berna Zorkun DMD and copylefted)</small>
</gallery>
</gallery>


Line 34: Line 121:
http://www.braceface.com/Crossbite2.htm
http://www.braceface.com/Crossbite2.htm


{{Orthodontics}}


{{SIB}}


[[Category:Orthodontics]]
[[Category:Orthodontics]]

Latest revision as of 00:20, 9 August 2012

Crossbite
Crossbite
(Image courtesy of Berna Zorkun DMD and copylefted)

WikiDoc Resources for Crossbite

Articles

Most recent articles on Crossbite

Most cited articles on Crossbite

Review articles on Crossbite

Articles on Crossbite in N Eng J Med, Lancet, BMJ

Media

Powerpoint slides on Crossbite

Images of Crossbite

Photos of Crossbite

Podcasts & MP3s on Crossbite

Videos on Crossbite

Evidence Based Medicine

Cochrane Collaboration on Crossbite

Bandolier on Crossbite

TRIP on Crossbite

Clinical Trials

Ongoing Trials on Crossbite at Clinical Trials.gov

Trial results on Crossbite

Clinical Trials on Crossbite at Google

Guidelines / Policies / Govt

US National Guidelines Clearinghouse on Crossbite

NICE Guidance on Crossbite

NHS PRODIGY Guidance

FDA on Crossbite

CDC on Crossbite

Books

Books on Crossbite

News

Crossbite in the news

Be alerted to news on Crossbite

News trends on Crossbite

Commentary

Blogs on Crossbite

Definitions

Definitions of Crossbite

Patient Resources / Community

Patient resources on Crossbite

Discussion groups on Crossbite

Patient Handouts on Crossbite

Directions to Hospitals Treating Crossbite

Risk calculators and risk factors for Crossbite

Healthcare Provider Resources

Symptoms of Crossbite

Causes & Risk Factors for Crossbite

Diagnostic studies for Crossbite

Treatment of Crossbite

Continuing Medical Education (CME)

CME Programs on Crossbite

International

Crossbite en Espanol

Crossbite en Francais

Business

Crossbite in the Marketplace

Patents on Crossbite

Experimental / Informatics

List of terms related to Crossbite

Editor in Chief: Berna Zorkun DMD [1]


Overview

Crossbite is an occlusal irregular condition where a lower tooth has a more buccal position than the antagonist upper tooth. Crossbite can involve a single tooth or a group of teeth. Crossbite can be classified as anterior or posterior.

  • Anterior crossbite can also be referred as negative overjet, and is typical of class III skeletal relations (Progenism).
  • Posterior crossbite is often correlated to a narrow maxilla and upper dental arch. A posterior cross-bite can be unilateral or bilateral.

Unilateral cross-bite often determines a lateral shift of the mandibular position, which can become structural if left untreated for a long time during growth, leading to skeletal asymmetries.

Etiology

A crossbite may be associated with a pathological condition. A cleft palate patient may present both anterior and posterior crossbites with a narrow palate. Arthritis, acromegaly, Duchenne’s muscular dystrophy, condylar hyperplasia and osteochondroma are other factors. The majority of anterior crossbites a single tooth or a few teeth and are caused by dental factors: A congenitally-caused eruption pattern of the maxillary anteriors. Trauma to the primary dentition which leads to the displacement of the primary or permanent tooth bud. Trauma to permanent teeth that result in their being displaced by luxation.

Other factors include;

  • Stomach sleeping posture
  • Digit or pacifier sucking habits
  • Oral respiration
  • Low tongue position
  • Tongue thrusting

Further Classification and Related Terminology

Buccal Crossbite

Buccal crossbite is due to the buccal displacement of the affected tooth or teeth as it relates to the antagonistic tooth or teeth in the posterior segments of the arch.

Lingual Crossbite

Lingual crossbite is due to the lingual displacement of the mandibular affected tooth or teeth as it relates to the antagonistic tooth or teeth.

Palatal Crossbite

Palatal crossbite is due to the palatal displacement of the maxillary affected tooth or teeth as it relates to the antagonistic tooth or teeth.

Complete Mandibular Buccal Crossbite

Complete mandibular buccal crossbite is present when all the mandibular teeth are lingually positioned to the maxillary teeth due to a narrower mandibular arch than the maxillary arch.

Complete Maxillary Palatal Crossbite

Complete maxillary palatal crossbite is present when all the maxillary teeth are palatal to the mandibular arch due to the narrower maxillary arch.

Both complete mandibular buccal crossbite and complete maxillary palatal crossbite could be referred as scissors-bite.

Complete Crossbite

Complete crossbite is found when all teeth in one arch are positioned either inside or outside to the all teeth in the opposing arch.

Scissors-bite

Scissors-bite is present when one or more of the adjacent posterior teeth are either positioned completely buccally or lingually to the antagonistic teeth and exhibit a vertical overlap.

Anterior crossbite

Anterior crossbite is a malocclusion in which one or more of the upper anterior teeth occlude lingually to the mandibular incisors; the lingual malpositions of one or more maxillary anterior teeth in relation to the mandibular anterior teeth when the teeth are in centric relation occlusion.

Posterior Crossbite

Posterior Crossbite is one or more posterior teeth locked in an abnormal relation with the opposing teeth of the opposite arch; can be either buccal or a lingual cross-bite and may be accompanied by a shift of the mandible.

Centric occlusion

Centric occlusion is a static reproducible position of the mandible in which there is maximal contact of the inclined planes of the opposing teeth with balanced, unstrained relationship in the temporomandibular articulation.

Treatment

There are several therapies that can be used to correct a cross bite:

  • Multibrackets therapy (braces)
  • Quad-Helix
  • Hirex
  • Removable Plates
  • Invisalign
  • Delaire Mask

The correct therapy should be decided by the orthodontist depending on the type and severity of the crossbite.

Image Gallery

  • Unilateral Posterior Crossbite

    Unilateral Posterior Crossbite

  • Crossbite

    Crossbite

  • Crossbite

    Crossbite


  • Crossbite (Image courtesy of Berna Zorkun DMD and copylefted)

    Crossbite
    (Image courtesy of Berna Zorkun DMD and copylefted)

  • Crossbite (Image courtesy of Berna Zorkun DMD and copylefted)

    Crossbite
    (Image courtesy of Berna Zorkun DMD and copylefted)

  • Crossbite (Image courtesy of Berna Zorkun DMD and copylefted)

    Crossbite
    (Image courtesy of Berna Zorkun DMD and copylefted)


  • Crossbite (Image courtesy of Berna Zorkun DMD and copylefted)

    Crossbite
    (Image courtesy of Berna Zorkun DMD and copylefted)

  • Crossbite (Image courtesy of Berna Zorkun DMD and copylefted)

    Crossbite
    (Image courtesy of Berna Zorkun DMD and copylefted)

External links

http://www.braceface.com/Crossbite2.htm

Template:WH Template:WS

Retrieved from "https://www.wikidoc.org/index.php?title=Crossbite&oldid=672111"