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Extended Liability Supplement - Application

The DDU Extended Liability Supplement is appropriate for practice principals who have associates or employed dentists working at their practice. It provides additional benefits in the event that the practice principal is named in a claim arising from their work.

Please complete this application questionnaire if you would you like to apply to add our Extended Liability Supplement to your DDU membership. 

Once your application for the supplement has been agreed, we will send you a questionnaire where you or your practice manager can provide the details of the associates and employed dentists based at the practice over recent years.

As an organisation, we understand that data must be handled securely. For more information about how we collect, store and use data please see our privacy policy at
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The Dental Defence Union (DDU) is the specialist dental division of The Medical Defence Union Limited (MDU) and references to the DDU and DDU membership mean the MDU and membership of the MDU. MDU Services Limited (MDUSL) is authorised and regulated by the Financial Conduct Authority for insurance mediation and consumer credit activities only. MDUSL is an agent for The Medical Defence Union Limited (MDU). MDU is not an insurance company. The benefits of MDU membership are all discretionary and are subject to the Memorandum and Articles of Association. MDU Services Limited, registered in England 3957086. Registered Office: One Canada Square, London E14 5GS