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DANB's Maryland Orthodontic Assisting Expanded Functions - Blogs Sample Questions

After 18 months of wearing a fixed appliance, a patient's midline is still not aligned. This patient may require:

Correct Answer:
elastics.
when a patient has been wearing a fixed orthodontic appliance, such as braces, for a period like 18 months and the dental midline is still misaligned, additional orthodontic interventions might be necessary to achieve optimal alignment. the correct intervention in many such cases is the use of orthodontic elastics.

elastics are small rubber bands that exert extra force to the teeth, supplementing the pressure applied by the braces. their primary function is to correct misalignments that are not adequately adjusted by the braces alone. in the context of midline alignment, elastics can be strategically placed to pull the teeth towards the desired position, effectively correcting any lateral discrepancies between the upper and lower dental arches.

orthodontic elastics are versatile and can be used in various configurations depending on the specific alignment issue. for midline corrections, cross elastics might be employed. these are typically attached from a bracket on a tooth on one side of the upper jaw to a bracket on a tooth in the corresponding position on the opposite side of the lower jaw, forming a cross pattern that helps align the midline.

the use of elastics in orthodontics requires careful planning and adjustment by an orthodontist. the tension and duration of wear must be precisely controlled to avoid overcorrection or other dental issues. patients are usually instructed to wear the elastics as much as possible, removing them only during eating or brushing.

other treatment options like headgear, removable appliances, or even surgical interventions might be considered in more complex cases or when elastics alone are not sufficient to correct the alignment issues. however, these are generally more invasive or cumbersome for the patient. hence, the use of elastics is often preferred for its simplicity and effectiveness, especially in the final stages of orthodontic treatment to fine-tune the dental alignment and achieve a harmonious bite and aesthetic appearance.