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Anterior Crossbite

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In this article by Orthofree.com, They Explain about anterior crossbite, its prevalence, etiological factors, management, treatment and some case reports.

Anterior Crossbite

Screenshot 2014-03-05 19.19.32

Definition 

An abnormal relationship of a tooth or teeth to the opposing teeth, in which normal buccolingual or labiolingual relationships are reversed.

Prevalence 

The incidence in caucasieans ranges between 2% and 4%.


Etiological Factors

  • Skeletal
    •  Genetic predisposition
    •  Embryological defective development
    • Class III malocclusionmandibular prognathia , Insuffecient maxillary
  •  Dental
    •  Lingual eruption path of maxillary anterior teeth
    •  Trauma to deciduous dentition in which there is displacement of tooth buds
    •   Retained deciduous causing lingual eruption of permanent teeth
    •   Supernumerary teeth
  • Functional
    • Habits
      • Digital or pacifer sucking habits
      • Oral respiration
      • Low tongue position
      • Stomach sleeping posture
      • Tongue trusting
    • Pseudo Class III
      •  Class I skeletal relationship
      •  Insuffecient maxillary overjet and incisor interference
      •  Multi-tooth anterior crossbite may result from a functional shift of the mandible in an effort to avoid anterior interference in centric relation and to achieve maximum inter-cuspation.

Examples

Screenshot 2014-03-17 23.29.07

Screenshot 2014-03-17 23.44.28

Screenshot 2014-03-17 23.44.42


Managment

The period of mixed dentition offers the greatest opportunity for occlusl guidance and interception of malocclusion. Here is a few Management care reports:

Skeletal

  • Can be controlled during growth by growth modification appliances, such as: Protracion face masks.


Screenshot 2014-03-05 19.02.07

Screenshot 2014-03-05 19.02.27

Dental

  • Dental and  Removable acrylic appliances,  functional Removable acrylic appliances , with posterior bite

    Screenshot 2014-03-05 19.01.42


Case Reports

Case 1

Screenshot 2014-03-05 18.55.46
Case 2

Screenshot 2014-03-05 18.55.58

Case 3

Screenshot 2014-03-05 18.56.05


Bibliography

  • Arvystas MG. The rationale for early orthodontic treatment. Am J Orthod Dentofacial Orthop 1998:133:15-8.
  • Adams P. The design, construction and use of removable orthodontic appliances. 5th ed. Bristol; 1984. p.111-2.
  • Graber TM, Neuman B. Removable orthodontic appliances. 2nd ed. Saunders; 1984. p. 57-9.
  • Horosilkina FJ, Maligin JM. Osnovi konstruirovanija I tehnologija izgotovlenija ortodontoticeskih aparatur. Moskva: Medicina; 1977. p. 168-9. Rus
  • Kalvelis DA. Aparatūras, kas darbojas pēc slīpās plāksnes principa. Ortodontija 1964:135-6;
  • Patti A, Perier G. Preface. In: Clinical success in early orthodontic treatment. Quintessence; 2005. p. 8.
  • Proffit WR. The timing of eraly treatment: An overview. Am J Orthod Dentofacial Orthop 2006;4:S48;
  • Sztele R. Herstellung Kieferorthop.disher apparate. Berlin; 1960. S. 53.
  • Taatz H. Kieferorthop.dische Prophylaxe und Frühbehandlung.  I. Jirgensone et al. CLINICAL CASE München,Wien: Hanser; 1976. p. 238-9.
  • Vadiakas G, Viazis AD. Anterior crossbite correction in the early deciduous dention. Am J Orthod Dentofacial Orthop 1992;102:160-2.
  • Zachrisson B, Thilander B. Treatment of Dento-alveolar anomalies. In: Introduction to orthodontics. Stockholm; 1994. p. 146-182.
  • Tausche E, Luck O, Harzer W. Prevalence of malocclusions in the early mixed dentition and orthodontic treatment need. Eur J Orthod 2004;26:237-44.
  • Kiyak AH. Patients’ and parents’ expectations from early treatment. Am J Orthod Dentofacial Orthop 2006;129:S50-54.
  • Ngan P. Biomechanics of maxillary expansion and protraction in Class III patients. Am J Orthod Dentofacial Orthop 2002;121:58283.
  • Dugoni S, Aubert M, Baumrind S. Differential diagnosis and treatment planning for early mixed dentition malocclusions. Am J Orthod Dentofacial Orthop 2006; 129:S80-1.


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