For all of our dental products you can start claiming for preventative treatments such as routine examinations, scale and polish and X-rays straight away. There is a four month waiting period for restorative dental treatment, for example fillings, root canal work, extractions, crowns, dentures, bridges and other laboratory work. For oral cancer treatment, the waiting period is six months from the start date of the policy. With Dental Cover 20, you are also covered for emergency dental treatment 14 days from when your policy starts, whereas dental injury treatment is available after four months.