Most patients with primary coccidioidomycosis are asymptomatic, but nonspecific respiratory symptoms resembling those of influenza, acute bronchitis, or, less often, acute pneumonia or pleural effusion sometimes occur.
By using retainers to hold the teeth in their new position for a length of time, the surrounding periodontal fibres are allowed to adapt to changes in the bone which can help minimize any changes to the final tooth position after the completion of orthodontic treatment.
1 They are made using metal wire and dental acrylic.  Permanent fixed retainer- This is a wire that is bonded on the lingual side of the teeth permanently to prevent the teeth from shifting. This is typically done on the lower teeth, but can also be done on the upper. This process has to be done by a dentist.