We would advise you to contact the office at your earliest convenience to inform us that you have lost your retainer, as a new one will need to be made for you, at an additional fee. When eating out, it is recommended that you remove your retainer. Please, do not wrap the retainer in a tissue or napkin. This eventually results in the retainer being discarded. We will provide you with a retainer case, which is available in many colours, for you to use, both in your homes and when out. Use these retainer cases whenever you remove your retainers or appliances. A removable appliance or retainer is only safe in two places, your mouth or in the retainer case.