The management of severe hypodontia. Part 1: Considerations and conventional restorative options.

Severe hypodontia is the absence of six or more permanent teeth and is relatively uncommon (estimated prevalence of 0.1-0.2%). This condition may have considerable functional, aesthetic and psychological implications for the patient, as well as presenting a significant challenge for the restorative dentist. There are a number of additional dental and craniofacial features that are seen frequently in patients with severe hypodontia that may complicate the provision of restorative treatment. These patients typically present at a young age and are likely to require lifelong support from the dental team. Initially this may be limited to oral health education and delivery of effective preventative regimes in childhood. Where required, missing teeth may be replaced using conventional removable and fixed prosthodontics as well as implant retained restorations. This article, part one of a two-part series, deals with the assessment of patients and factors to consider when treatment planning for the provision of conventional restorative solutions in severe hypodontia.