Final answer:
The question is about orthodontic procedures, with elastic separators left in between teeth for about 1-2 weeks to create space, and steel ties associated with braces, which can be adjusted every 4-8 weeks during regular visits to the orthodontist.
Step-by-step explanation:
The question seems to be related to the field of orthodontics, a specialty within dentistry. Elastic separators are typically used in orthodontics to create space between teeth before placing bands during braces treatment. Steel ties or wires might be referring to parts of the braces that hold the archwire in place or connect various elements of the braces.
Elastic separators may be left in for approximately 1-2 weeks, while steel ties (or steel ligatures) can be changed or adjusted during regular orthodontic visits, usually every 4-8 weeks. The exact duration depends on the specific treatment plan and the orthodontist's instructions.