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[Orthodontic diagnosis and treatment of unilateral posterior cross-bite]
Objective:
The aim of this study is to investigate the clinical diagnosis and treatment of unilateral posterior cross-bite and to provide information for correct treatment of this disease.
Methods:
The X-ray examination of patients' heads in the posterior-anterior position, analysis of pantomorphic films and model measurement were used for the diagnosis of unilateral cross-bite. According to these data, three types of unilateral posterior cross-bite would be classified, and different orthodontic appliances would be applied in the following treatment, including separate plate removable expansion appliances, Quad-helix appliances, narrowing dental arch and inter-arch elastics.
Results:
A total of 78 cases of unilateral posterior cross-bite were treated by different techniques in a manner consistent with the classification. All of the clinical results of treatment were satisfactory and successful.
Conclusion:
If diagnosis is correct, and suitable treatment methods are chosen, unilateral cross-bite can be treated successful.
