Removable Partial Dentures
A removable partial denture (RPD) replaces several missing teeth with artificial teeth set on a base that the patient can take out and reinsert. It is retained by clasps or attachments on the remaining natural teeth and by adaptation to the residual ridge, and is used when some natural teeth remain but fixed restorations are not chosen or feasible.
Definition
A removable partial denture is a patient-removable prosthesis that replaces some but not all teeth in an arch, supported by a combination of the remaining teeth (through clasps or attachments) and the underlying mucosa and ridge.
Scope
This topic covers the removable partial denture as a prosthetic option: its components, how it is supported and retained, and its reported effects on the remaining (abutment) teeth and oral health. It is a reference-educational overview rather than guidance on design or fitting for an individual.
Core questions
- How does a removable partial denture differ from a fixed bridge and from a complete denture?
- What components retain and support an RPD?
- How does wearing an RPD affect the abutment teeth and surrounding tissues?
Key concepts
- Tooth- and tissue-borne support
- Clasp and precision attachment retention
- Abutment tooth
- Major and minor connectors
- Residual ridge and denture base
- Plaque accumulation and abutment health
- Patient-removable prosthesis
Mechanisms
An RPD distributes occlusal load between the remaining teeth and the soft-tissue-covered residual ridge. Retention comes from clasps or attachments that engage abutment teeth, and stability from the fit of the base against the ridge. Because the appliance covers and contacts natural teeth and gingiva and is removed for cleaning, it can promote plaque accumulation around abutments, which is why its effect on caries and periodontal health of abutment versus non-abutment teeth is a recurring research question (Syed et al., 2025).
Clinical relevance
Removable partial dentures are a long-established way to replace multiple missing teeth, and the literature describes how their effects on the remaining dentition are studied — particularly whether abutment teeth experience more caries or periodontal change than non-abutment teeth (Syed et al., 2025). This entry summarises how such evidence is reported and is not a basis for individual treatment decisions.
Epidemiology
A systematic review synthesising evidence without meta-analysis examined the incidence of caries and periodontal disease in abutment versus non-abutment teeth among RPD wearers, reflecting the concern that clasped abutment teeth may be at higher risk of plaque-related disease; the synthesis notes heterogeneity across the included studies (Syed et al., 2025).
Evidence & guidelines
The principal topic-specific evidence is a systematic review of caries and periodontal outcomes in abutment versus non-abutment teeth among RPD wearers (Syed et al., 2025); broader prosthodontic complication patterns are summarised in structured reviews of restorative complications (Goodacre et al., 2003).
Debates
- Effect of removable partial dentures on abutment-tooth health
- Whether clasped abutment teeth experience more caries and periodontal disease than non-abutment teeth is studied through reviews that, given heterogeneous and limited evidence, synthesise findings without meta-analysis rather than reaching a single quantitative conclusion.
Related topics
Seminal works
- syed-2025-rpd
Frequently asked questions
- What is the difference between a removable partial denture and a complete denture?
- A removable partial denture replaces some missing teeth while natural teeth remain and help support it, whereas a complete denture replaces all teeth in an arch and rests entirely on the gums and ridge.
- Why are abutment teeth a concern with partial dentures?
- Abutment teeth carry the clasps and bear extra load, and the appliance can encourage plaque accumulation around them, which is why studies examine whether they develop more caries or gum disease than other teeth.