An alternative technique in the treatment of anterior cross bite in a case of nichel allergy: a case report

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ABSTRACT

Aim

The objective of this paper is to show an alternative use of an Essix based appliance in the treatment of
anterior single-tooth crossbite malocclusion in a patient with Nickel allergy.

Methods

Anterior crossbite
malocclusion of one or more teeth, without posterior crossbite association, is a relatively frequent condition both in the
mixed and the permanent dentition. This kind of malocclusion is usually treated with either fixed or removable appliances.
The use of preformed Essix appliances could be an alternative to traditional removable and fixed orthodontic devices in
patients with Nickel allergy as well as in every patient.

Results

The treatment was successfully completed in 12 weeks, the
anterior single tooth crossbite was corrected using three full arch Essix-based appliances planned on the set-up casting,
providing a gradual vestibular movement. Patient compliance was requested in order to provide the planned dental
movement.

Conclusion

The Essix appliance can be successfully used to correct a single-tooth crossbite even in allergic
subjects in a short time with patient cooperation.

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