Terms & Conditions From time to time Sandringham Dental Practice may offer discounts or promote particular services online. The terms and conditions posted here apply to thos offers so you can make an informed decision. Mouthguard Discount Offer applies to orders placed at Sandringham Dental Practice up to and including 31st December 2021. No gap – applies only to patients with private health cover. We reduce our overall charge to ensure you have no out of pocket expenses for your mouthguard after you claim from your health fund. 50% off – applies only to customers who do not have private health cover. We will reduce our standard charge by 50%.