Non-Cochrane · intervention · PM42567046
Implant-Supported and Conventional Dentures: A Meta-Analysis in Older Adults.
Heboyan Artak, Kaur Kanwalpreet, Saini Ravinder S, et al. · International dental journal · 2026 · PubMed · doi:10.1016/j.identj.2026.109782
Findings
Population Edentulous older adults requiring prosthetic rehabilitation
7 findings
| Implant-retained overdentures (IODs), mainly mandibular two-implant ball or bar-clip | Conventional complete dentures (CCDs) | Functional limitation (OHRQoL domain) Longest follow-up with usable data (6 months to 4 years across trials) · Clinical trials in North America, South America, Europe and Asia | MD -3.04 [-6.69, 0.61] GRADE not reported 7 studies · 633 participants |
| Implant-retained overdentures (IODs), mainly mandibular two-implant ball or bar-clip | Conventional complete dentures (CCDs) | Psychological discomfort (OHRQoL domain) Longest follow-up with usable data (6 months to 4 years across trials) · Clinical trials in North America, South America, Europe and Asia | MD -1.87 [-4.44, 0.71] GRADE not reported 7 studies · 633 participants |
| Implant-retained overdentures (IODs), mainly mandibular two-implant ball or bar-clip | Conventional complete dentures (CCDs) | Psychological disability (OHRQoL domain) Longest follow-up with usable data (6 months to 4 years across trials) · Clinical trials in North America, South America, Europe and Asia | MD 0.46 [-1.77, 2.69] GRADE not reported 7 studies · 633 participants |
| Implant-retained overdentures (IODs), mainly mandibular two-implant ball or bar-clip | Conventional complete dentures (CCDs) | Social disability (OHRQoL domain) Longest follow-up with usable data (6 months to 4 years across trials) · Clinical trials in North America, South America, Europe and Asia | MD -0.28 [-1.34, 0.78] GRADE not reported 7 studies · 633 participants |
| Implant-retained overdentures (IODs), mainly mandibular two-implant ball or bar-clip | Conventional complete dentures (CCDs) | Physical pain (OHRQoL domain) Longest follow-up with usable data (6 months to 4 years across trials) · Clinical trials in North America, South America, Europe and Asia | MD -2.67 [-6.15, 0.80] GRADE not reported 7 studies · 633 participants |
| Implant-retained overdentures (IODs), mainly mandibular two-implant ball or bar-clip | Conventional complete dentures (CCDs) | Physical disability (OHRQoL domain) Longest follow-up with usable data (6 months to 4 years across trials) · Clinical trials in North America, South America, Europe and Asia | MD -2.46 [-5.19, 0.27] GRADE not reported 7 studies · 633 participants |
| Implant-retained overdentures (IODs), mainly mandibular two-implant ball or bar-clip | Conventional complete dentures (CCDs) | Handicap (OHRQoL domain) Longest follow-up with usable data (6 months to 4 years across trials) · Clinical trials in North America, South America, Europe and Asia | MD 0.02 [-1.44, 1.47] GRADE not reported 7 studies · 633 participants |
Included primary studies 21
Open in Studies| Study | Year | Also included by | Outcomes it informs here | Trial data |
|---|---|---|---|---|
| Muller 2013 Implant-supported mandibular overdentures in very old adults: a randomized controlled trial. PMID:24158342 | 2013 | 3 other reviews | not stated | not extracted yet |
| Hamdan 2013 Do implant overdentures improve dietary intake? A randomized clinical trial. PMID:24158335 | 2013 | 1 other review | not stated | not extracted yet |
| Morais 2003 The effects of mandibular two-implant overdentures on nutrition in elderly edentulous individuals. PMID:12508046 | 2003 | 1 other review | not stated | not extracted yet |
| Allen 2006 A randomized controlled trial of implant-retained mandibular overdentures. PMID:16723653 | 2006 | this review only | not stated | not extracted yet |
| Assuncao 2007 Comparing the efficacy of mandibular implant-retained overdentures and conventional dentures among elderly edentulous patients:… PMID:17999736 | 2007 | this review only | not stated | not extracted yet |
| Awad 2003 Comparing the efficacy of mandibular implant-retained overdentures and conventional dentures among middle-aged edentulous patients:… PMID:12737240 | 2003 | this review only | not stated | not extracted yet |
| Boerrigter 1995 Patient satisfaction with implant-retained mandibular overdentures. A comparison with new complete dentures not retained by implants--a… PMID:8555143 | 1995 | this review only | not stated | not extracted yet |
| Cakir 2014 Evaluation of the efficacy of mandibular conventional and implant prostheses in a group of Turkish patients: a quality of life study. PMID:24417762 | 2014 | this review only | not stated | not extracted yet |
| Fontijn-Tekamp 2004 Swallowing thresholds of mandibular implant-retained overdentures with variable portion sizes. PMID:15142103 | 2004 | this review only | not stated | not extracted yet |
| Geertman 1996 Two-center clinical trial of implant-retained mandibular overdentures versus complete dentures-chewing ability. PMID:8833520 | 1996 | this review only | not stated | not extracted yet |
| Hamada 2001 A randomized clinical trial comparing the efficacy of mandibular implant-supported overdentures and conventional dentures in diabetic… PMID:11174679 | 2001 | this review only | not stated | not extracted yet |
| Harris 2013 A comparison of implant-retained mandibular overdentures and conventional dentures on quality of life in edentulous patients: a… PMID:22111872 | 2013 | this review only | not stated | not extracted yet |
| Heydecke 2005 Cost-effectiveness of mandibular two-implant overdentures and conventional dentures in the edentulous elderly. PMID:16109986 | 2005 | this review only | not stated | not extracted yet |
| Heydecke 2008 Do mandibular implant overdentures and conventional complete dentures meet the expectations of edentulous patients? PMID:19093056 | 2008 | this review only | not stated | not extracted yet |
| Jabbour 2012 Is oral health-related quality of life stable following rehabilitation with mandibular two-implant overdentures? PMID:22092512 | 2012 | this review only | not stated | not extracted yet |
| Khalid 2017 Patient-reported outcome and its association with attachment type and bone volume in mandibular implant overdenture. PMID:26989853 | 2017 | this review only | not stated | not extracted yet |
| Nogueira 2019 Changes in masticatory performance of edentulous patients treated with single-implant mandibular overdentures and conventional complete… PMID:30387869 | 2019 | this review only | not stated | not extracted yet |
| Pan 2014 Comparison of patient's satisfaction with implant-supported mandibular overdentures and complete dentures. PMID:24923574 | 2014 | this review only | not stated | not extracted yet |
| Possebon 2023 Immediate versus conventional loading of mandibular implant-retained overdentures: a 3-year follow-up of a randomized controlled trial. PMID:37612525 | 2023 | this review only | not stated | not extracted yet |
| Rashid 2011 The effectiveness of 2-implant overdentures - a pragmatic international multicentre study. PMID:20704639 | 2011 | this review only | not stated | not extracted yet |
| Sun 2014 Masticatory efficiency and oral health-related quality of life with implant-retained mandibular overdentures. PMID:25316463 | 2014 | this review only | not stated | not extracted yet |
Overlap with other reviews
Reviews that include the same primary studies are not independent evidence. Shared counts match studies by PMID, DOI or NCT, and otherwise by author and year (a probable match). Only the non-Cochrane dental reviews have study lists, so overlap with Cochrane reviews is not counted yet.
Review question
| Element | Planned (methods) | Found (results) |
|---|---|---|
| Population | Edentulous adults requiring prosthetic rehabilitation, particularly older adults | Edentulous older adults (mean ages 65 to 75 years; 1452 participants; mostly mandibular overdentures) |
| Intervention | Implant-retained overdentures retained by a defined attachment system | Implant-retained overdentures (ball or bar-clip attachments; mostly two-implant mandibular) |
| Comparison | Conventional complete dentures not supported by implants | Conventional complete dentures |
| Outcomes | Primary: OHRQoL, denture satisfaction, masticatory performance. Secondary: physical, psychological, social and nutritional outcomes, implant survival, complications | OHRQoL domain scores pooled for 7 trials (7 domains); denture satisfaction, masticatory performance, nutrition, implant survival and complications synthesized narratively |
| Study designs | Randomized controlled trials in English, follow-up of at least 6 months | 21 RCTs (7 contributing to pooled analyses) |
| Timing | Follow-up of at least 6 months | Follow-up 6 months to 4 years |
AMSTAR 2 items
Two independent extractors rated each item. Their ratings are shown side by side because they have not been reconciled yet. The overall rating follows Shea et al. 2017: one critical flaw gives Low, more than one gives Critically Low.
| Item | Extractor A | Extractor B | Agree |
|---|---|---|---|
| 1Research question includes PICO components | Yes | Yes | yes |
| 2Protocol established before the reviewcritical | Partial Yes | Partial Yes | yes |
| 3Choice of study designs explained | No | No | yes |
| 4Comprehensive literature searchcritical | Partial Yes | Partial Yes | yes |
| 5Study selection in duplicate | Yes | Yes | yes |
| 6Data extraction in duplicate | Yes | Yes | yes |
| 7List of excluded studies with reasonscritical | No | No | yes |
| 8Included studies described in detail | Yes | Yes | yes |
| 9Risk of bias assessed satisfactorilycritical | RCT: Yes · NRSI: N/A | NRSI: N/A · RCT: Yes | no |
| 10Funding of included studies reported | Yes | Yes | yes |
| 11Appropriate meta-analysis methodscritical | RCT: No · NRSI: N/A | NRSI: N/A · RCT: No | no |
| 12Impact of risk of bias on the pooled results | No | No | yes |
| 13Risk of bias accounted for in interpretationcritical | Yes | Yes | yes |
| 14Heterogeneity explained | Yes | Yes | yes |
| 15Publication bias investigatedcritical | No | No | yes |
| 16Conflicts of interest reported | Yes | Yes | yes |
| Overall | Critically Low | Critically Low | yes |