denture types

What Are Overdentures? Expert Guide for 2026

By 3D DDS / August 20, 2026

An overdenture is a removable dental prosthesis supported by retained teeth, tooth roots, or implants rather than resting only on the oral mucosa. For mandibular implant overdentures, two implants are the minimum recommended support, while implant overdentures often use two to four implants and upper-jaw overdentures commonly need four because the maxilla has less dense…