Dental moulds for appliances and orthodontics should not be reused once treatment has started and more than a month has passed. There are too many changes in the oral cavity, such as teeth moving and changes in the gums and tissue, that prevent the old model from fitting with any precision. Dental models should be discarded after appliances are fitted.
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Keep All Parts of the Treatment Package
Dental moulds are part of the package and should be kept for as long as treatment is being conducted. Although it is not recommended that moulds be reused, useful comparisons could be made between the past models and the current condition of the teeth.
Your dentist should keep dental study moulds for as long as treatment continues. Reusing moulds is not recommended, but they should be kept for comparison purposes. Although new moulds are expensive and not usually covered by insurance, for best treatment results, new models should be made if new appliances are necessary.
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