Retainers are devices that retain the teeth in their current position, ensuring that your beautiful smile stays exactly where you want it to. Retainers can be either appliances that are removed and reapplied to your teeth or they can be devices that are glued to the back of your teeth. You and your doctor will determine which retainer type is best for you and for how long and when you should be wearing them. VIVERA RETAINERS. Vivera Retainers are a type of removable retainer that are made by the Invisalign company. Formed from a clear, plastic-like material, Vivera retainers are extremely strong and durable and custom made to fit your teeth with great ease and comfort. FREE INVISALIGN CONSULTATION. Whether you’re not happy with how your teeth look or feel, or you’re concerned with how your bite may be negatively harming your teeth and gums, we can be sure that you have questions that need answering. At Park Dentistry, our team of smile experts would be more than happy to sit with you and discuss your smile and concerns. And best of all, we want to do it at no charge! Call today to schedule your free Invisalign consultation.