The two designs

People missing all teeth in a jaw have two main implant options.

Fixed full-arch bridge. Attached to the implants and cleaned in place with brushing and flossing.¹ All-on-4 and All-on-X are versions of this design.
Implant overdenture. A removable denture that clips onto implants for stability.²

A conventional denture without implants is removed and soaked overnight.¹

What patients report

An ITI systematic review (2018) compared patient-reported outcomes for fixed full-arch bridges and implant overdentures across 13 studies.³

Overall, there were no significant differences between fixed and removable designs.³
Most studies showed a slight trend in favor of fixed bridges.³
Results conflicted for chewing, speech, overall satisfaction and appearance.³

The review called for standard ways of measuring patient outcomes.³

The consensus minimum for the lower jaw

The McGill (2002) and York (2009) consensus statements named the two-implant overdenture the first-choice standard for a lower jaw with no teeth.⁴⁵ The York statement described it as the minimum standard sufficient for most people, considering performance, satisfaction, cost and clinical time.⁵ It noted that the two-implant overdenture is not the gold standard of implant therapy.⁵

Upkeep

	Fixed full-arch bridge	Implant overdenture
Daily care	Brushing and flossing in place¹	Removable by the patient³
Common maintenance	Veneer chipping, screw fracture; 29.3 percent free of complications at 5 years⁶	Attachment (matrix) activation; less with stud than ball attachments⁷

Who plans the teeth

The ACP describes prosthodontics as the specialty for restoring and replacing missing teeth.⁸ The ACP states that prosthodontists are considered the leaders of the dental treatment plan and lead teams of general dentists, specialists and other health professionals.⁸ The ACP lists dental implants, crowns, bridges and dentures among prosthodontic expertise.⁸ The surgical side is covered in the topic on who does which part.

Questions to ask

Fixed or removable, and why for this jaw.
How many implants, and whether any are tilted.
Which material the final teeth are made of.
What maintenance visits and repairs to expect.

General information about dental implants. Treatment decisions are made with a licensed dentist.

Sources

American Academy of Periodontology: Full Mouth Dental Implants. perio.org
American College of Prosthodontists (GoToAPro): Dentures. gotoapro.org
Yao CJ et al. Patient-reported outcomes with implant-supported removable and fixed prostheses: systematic review. Clin Oral Implants Res 2018. pubmed.ncbi.nlm.nih.gov
Feine JS et al. The McGill consensus statement on overdentures. Int J Oral Maxillofac Implants 2002. pubmed.ncbi.nlm.nih.gov
Thomason JM et al. Two implant retained overdentures: literature supporting the McGill and York consensus statements. J Dent 2012. pubmed.ncbi.nlm.nih.gov
Papaspyridakos P et al. Complications with fixed implant rehabilitations for edentulous patients. Int J Oral Maxillofac Implants 2012. pubmed.ncbi.nlm.nih.gov
Girundi ALG et al. Mandibular overdentures with stud and ball attachments: systematic review. J Prosthet Dent 2024. pubmed.ncbi.nlm.nih.gov
American College of Prosthodontists (GoToAPro): Why See a Prosthodontist?. gotoapro.org

Evidence

Sourced facts

Each line links to the study or the specialty body it comes from.

An ITI systematic review (2018) of 13 studies found no significant differences overall in patient-reported outcomes between fixed full-arch bridges and implant overdentures, with a slight trend favoring fixed.

Yao CJ et al. Patient-reported outcomes of edentulous patients with implant-supported removable and fixed prostheses: systematic review (ITI). Clin Oral Implants Res 2018 · checked October 2, 2026
The same review found conflicting results for chewing, speech, satisfaction and aesthetics.

Yao CJ et al. Patient-reported outcomes of edentulous patients with implant-supported removable and fixed prostheses: systematic review (ITI). Clin Oral Implants Res 2018 · checked October 2, 2026
The York consensus describes the two-implant overdenture as the minimum standard sufficient for most people, considering performance, satisfaction, cost and clinical time.

Thomason JM et al. Two implant retained overdentures: literature supporting the McGill and York consensus statements. J Dent 2012 · checked October 2, 2026
The AAP states that implant-supported full bridges are cleaned with brushing and flossing, while conventional dentures are removed and soaked overnight.

American Academy of Periodontology: Full Mouth Dental Implants · checked October 2, 2026
Complications of fixed full-arch bridges accumulate over time: 29.3 percent free of complications at 5 years.

Papaspyridakos P et al. Complications with fixed implant rehabilitations for edentulous patients: systematic review. Int J Oral Maxillofac Implants 2012 · checked October 2, 2026
The ACP states that prosthodontists are considered the leaders of the dental treatment plan and lead teams of general dentists and specialists.

American College of Prosthodontists (GoToAPro): Why See a Prosthodontist? · checked October 2, 2026
The ACP states that dental implants can increase the stability of a removable denture.

American College of Prosthodontists (GoToAPro): Dentures · checked October 2, 2026
The McGill consensus statement (2002) named the mandibular two-implant overdenture the first-choice standard of care.

Feine JS et al. The McGill consensus statement on overdentures. Int J Oral Maxillofac Implants 2002 · checked October 2, 2026
Stud attachments for overdentures needed less prosthetic aftercare than ball attachments in a 2024 meta-analysis.

Girundi ALG et al. Mandibular overdentures with stud and ball attachments: systematic review. J Prosthet Dent 2024 · checked October 2, 2026

Related topics

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Procedures

Full-arch fixed teeth: All-on-4 and All-on-X

A full-arch fixed bridge replaces all teeth in one jaw and is fixed to four or more implants. All-on-4 uses four implants, which may include tilted implants; in All-on-X the X stands for a variable number of implants, commonly four to six.

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Procedures

Implant overdenture

An implant overdenture is a removable denture that clips onto two or more implants. Two-implant overdentures for the lower jaw are a consensus first-choice standard over conventional dentures.

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Who does the work

Who does which part: surgical and restorative

Implant treatment has a surgical half (placing the implant, grafting) and a restorative half (designing and fitting the teeth). Oral and maxillofacial surgeons and periodontists do the surgery; prosthodontists and general dentists do the restoration; some general dentists and specialists do both.

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Cost and coverage

What drives implant cost

Implant fees depend on how many teeth and implants are involved, the type of implants, added procedures to prepare the mouth such as grafting or a sinus lift, bone quantity and region. Imaging, provisional teeth, restoration material, sedation and long-term upkeep are further parts of the treatment plan.