Overdentures are used for people who need replacement teeth supported by implants or remaining teeth. The support system is the feature that separates them from a denture resting only on the gums.
A removable overdenture can be taken out at home. The clinical treatment involves creating or using the supporting teeth or implants, while the prosthesis itself is removable in the removable design.
Attachment systems have different maintenance requirements and complications. Retention loss, repairs, and relining are among the maintenance events reported for implant-supported overdentures.
An overdenture is maintained over time rather than treated as a one-time fitting. Research reports prosthetic maintenance requirements for implant-supported overdentures.
The prosthesis is designed around its support, which may be teeth or implants. For mandibular implant overdentures, the attachment system is selected as part of the prosthetic design.
Daily use includes cleaning the removable prosthesis and maintaining the supporting teeth or implants. Follow-up may involve repairs, replacement of worn parts, or relining.
A conventional complete denture does not use implant retention. A fixed implant-supported restoration remains attached, while a removable overdenture can be taken out.
The important practical distinction is whether the prosthesis is removable and which attachment supports it. Attachment choice can change maintenance needs and the way the prosthesis is handled.