Repair will be a difficult and less successful option..... new impressions need to be made for the fabrication of a new retainers...... please consult your dentist because the cost of the same can vary depending upon the experience of the dentist and the Lab which is used for the retainer fabrication...... Regards.....
There is no fixed rate for the retainers as it all depends upon what kind of condition your teeth are and what type of pressures they need . But don't delay to get the retainers or you might end up in a re-treatment situation and that will be costly .
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