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Related Experiment Videos

Cephalometric changes during self-correction of primary anterior crossbite.

S Nakamura1, K Miyajima, K Nagahara

  • 1School of Dentistry, Aichi-Gakuin University, Nagoya, Japan.

ASDC Journal of Dentistry for Children
|September 7, 1999
PubMed
Summary

Favorable maxillary and mandibular growth can lead to self-correction of anterior crossbite in children. However, a larger mandible relative to the cranial base may prevent self-correction of this common dental issue.

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Area of Science:

  • Dentistry
  • Orthodontics
  • Pediatric Dentistry

Background:

  • Anterior crossbite is a common malocclusion in early childhood.
  • Understanding growth patterns is crucial for predicting crossbite self-correction.
  • Longitudinal cephalometric studies provide insights into skeletal and dental development.

Purpose of the Study:

  • To investigate longitudinal cephalometric growth changes in Japanese girls with anterior crossbite.
  • To identify skeletal factors associated with the self-correction of anterior crossbite during primary and mixed dentition.

Main Methods:

  • Cephalometric analysis of 61 Japanese girls with anterior crossbite.
  • Annual radiographic assessments from average age 3 years 11 months to 7 years 6 months.
  • Grouping based on self-correction of anterior crossbite: primary dentition (Group N1), permanent incisor eruption (Group N2), and no self-correction (Group R).

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Main Results:

  • No significant skeletal differences were found between self-correcting groups (N1 and N2).
  • Groups N1 and N2 exhibited larger A'-Ptm'/Pog'-Go dimensions compared to Group R (p < 0.05).
  • Group N1 showed a smaller Pog'-Go/N-S ratio than Group R (p < 0.01) at the observation's end.

Conclusions:

  • Favorable maxilla-to-mandible growth promotes self-correction of primary anterior crossbite.
  • A relatively large mandible in proportion to the cranial base may impede the self-correction of anterior crossbite.