Final answer:
The most important thing done in the maxillary arch during orthodontic treatment is correcting malocclusion or misalignment of teeth through techniques like braces or aligners.
Step-by-step explanation:
In orthodontics, the maxillary arch is the upper jaw arch. One of the most important things done in the maxillary arch during orthodontic treatment is correcting any malocclusion or misalignment of teeth. This can be achieved through various orthodontic techniques, such as braces, aligners, or other appliances.
For example, if a patient has crowding in their maxillary arch, the orthodontist may recommend extracting one or more teeth to create space for proper alignment. Alternatively, if the arch is too narrow, a palatal expander may be used to widen it and create enough space for a proper bite.
The specific treatment plan for the maxillary arch depends on the individual's specific orthodontic needs, as determined by the orthodontist through a thorough examination and analysis of dental records, X-rays, and dental impressions.