Types of Dentures: Comparing Complete, Partial, Implant Overdentures, Suction, and Digital Dentures

What types of dentures are there?

Dentures are divided into complete (full) dentures and partial dentures depending on whether any teeth remain, and further into ordinary (tissue-supported), suction, and implant-supported types depending on what holds the denture in place [1]. DentStat analyzed 290 patient comments about denture types and fabrication methods on YouTube dental content and found repeated questions about the differences between suction dentures, implant overdentures, and partial denture clasps [4].

Category	Complete (full) dentures	Partial dentures	Implant-supported dentures (overdentures)
For	No teeth at all (edentulism) [1]	Some teeth remaining [1]	No teeth, when added retention is needed [1]
Retention	Seal between the gums (mucosa) and the inner surface of the denture [1]	Clasps hooked onto remaining teeth [1]	Secured on 2 to 4 implants with attachments [1]
Surgery	Not needed [1]	Not needed [1]	Implant placement surgery needed [1]
Health insurance	Resin-base and metal-base covered for patients 65 and over [2]	Clasp-retained type covered for patients 65 and over [2]	Usually non-covered [2]

How are suction dentures different from ordinary dentures?

Suction dentures are a complete denture fabrication method designed so that the gums and the inner surface of the denture seal precisely, aiming to increase retention through negative pressure [3]. The approach aims to reduce slipping through impression accuracy without surgery, but its effect varies with gum shape and saliva flow, so the same retention is not guaranteed in every case [3]. It is a separate item from the covered resin-base and metal-base dentures and is usually presented as non-covered (not paid by Korea’s National Health Insurance) [2].

How do implant overdentures work?

Implant dentures involve placing 2 to 4 implants and attaching and securing the denture on them with connectors such as snap-on (press-stud), magnet, or bar attachments [1]. They are removable like ordinary dentures, but the structure reduces slipping and movement compared with support from the gums alone [1]. Because placement surgery is required, assessment of jawbone condition and general health comes first, and this is a separate option from restoring the entire arch with a fixed prosthesis (so-called full-arch), with a different number of implants and prosthetic structure [3]. The procedure and coverage criteria for implants themselves are covered in the implant guide.

Do partial dentures affect the neighboring teeth?

Partial dentures are retained by clasps hooked onto remaining teeth (abutment teeth), so force is placed on those teeth, and in some cases adjustments such as reshaping the surface or placing a crown may be needed [3]. If visible metal clasps are a concern, there is also a clasp-free method made of flexible material (clasp-free dentures), but durability and repair and remaking conditions differ from metal frameworks, so the pros and cons need to be compared [3]. Partial dentures covered by National Health Insurance are based on the clasp-retained type [2].

Are digitally made dentures always more comfortable?

Digital dentures are a fabrication method using oral scanning and computer design and milling, and the fabrication process and visit structure may differ from conventional methods [3]. However, final comfort is affected not only by the fabrication method but also by gum condition, bite adjustment, and the adaptation period, so the method itself does not guarantee comfort [3]. The comment analysis also found both questions expecting precision from scanning and digital methods and cases asking about discomfort in actual use [4].

What are common misconceptions when choosing a type?

The expectation that magnet or suction dentures will never come loose is closer to an exaggeration. Whatever the method, the jawbone supporting a denture gradually resorbs, so periodic adjustment (relining) or remaking is expected [1]. The beliefs that partial dentures do not affect neighboring teeth at all, or that a particular method is advantageous for everyone, also do not match the facts; it depends on the number of remaining teeth, jawbone condition, and general health [1]. The choice of method is something to decide in consultation with a dentist based on oral examination results.

Health insurance criteria for dentures in general and comparison with implants are covered in the denture guide, and regional clinic data in Find a Dentist.