Non-Cochrane · intervention · PM41399921
Nutritional Outcomes of Overdentures vs. Complete Dentures in Older Edentulous Adults: A Systematic Review and Meta-Analysis.
Batista Danielle Soley, Manfron Gabriela Aparecida Winkert, Bubna Diulia Pereira, et al. · Journal of oral rehabilitation · 2026 · PubMed · doi:10.1111/joor.70111
Findings
Population Completely edentulous older adults aged 60 years or older
12 findings
| Implant-supported overdentures | Conventional complete dentures | Folate 6 months · Time point: 6 months | SMD 0.73 [-0.13, 1.59] GRADE not reported 2 studies · 290 participants |
| Implant-supported overdentures | Conventional complete dentures | Albumin Baseline (0 months) · Time point: 0 months | SMD -0.05 [-0.29, 0.18] GRADE not reported 2 studies · 273 participants |
| Implant-supported overdentures | Conventional complete dentures | Albumin 12 months · Time point: 12 months | SMD 0.15 [-0.11, 0.40] GRADE not reported 2 studies · 241 participants |
| Implant-supported overdentures | Conventional complete dentures | Vitamin B12 All time points combined (0, 3, 6, 12 months) | SMD 0.17 [-0.03, 0.36] 0.17 [-0.03, 0.36] SD High 5 studies · 1314 participants |
| Implant-supported overdentures | Conventional complete dentures | Folate 12 months · Time point: 12 months | SMD 0.09 [-0.36, 0.53] GRADE not reported 2 studies · 436 participants |
| Implant-supported overdentures | Conventional complete dentures | Albumin 6 months · Time point: 6 months | SMD -0.37 [-1.32, 0.57] GRADE not reported 2 studies · 290 participants |
| Implant-supported overdentures | Conventional complete dentures | Folate All time points combined (0, 3, 6, 12 months) | SMD -0.09 [-0.86, 0.69] -0.09 [-0.86, 0.69] SD Low Downgraded: inconsistency 3 studies · 1204 participants |
| Implant-supported overdentures | Conventional complete dentures | Vitamin B12 6 months · Time point: 6 months | SMD 0.60 [0.18, 1.02] GRADE not reported 2 studies · 290 participants |
| Implant-supported overdentures | Conventional complete dentures | Vitamin B12 Baseline (0 months) · Time point: 0 months | SMD 0.14 [-0.08, 0.37] GRADE not reported 4 studies · 534 participants |
| Implant-supported overdentures | Conventional complete dentures | Vitamin B12 12 months · Time point: 12 months | SMD 0.03 [-0.20, 0.27] GRADE not reported 3 studies · 458 participants |
| Implant-supported overdentures | Conventional complete dentures | Folate Baseline (0 months) · Time point: 0 months | SMD -1.09 [-3.30, 1.11] GRADE not reported 2 studies · 478 participants |
| Implant-supported overdentures | Conventional complete dentures | Albumin All time points combined (0, 3, 6, 12 months) | SMD -0.06 [-0.28, 0.17] -0.06 [-0.28, 0.17] SD High 3 studies · 836 participants |
Included primary studies 9
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 |
| Carletti 2019 Prostheses satisfaction and diet of elderly wearing a single implant overdenture: A six-month assessment. PMID:31368121 | 2019 | 1 other review | 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 |
| Amaral 2019 Sensorial Ability, Mastication and Nutrition of Single-Implant Overdentures Wearers. PMID:30864650 | 2019 | this review only | not stated | not extracted yet |
| Awad 2012 Implant overdentures and nutrition: a randomized controlled trial. PMID:21951464 | 2012 | this review only | not stated | not extracted yet |
| de Oliveira 2004 Association between nutrition and the prosthetic condition in edentulous elderly. PMID:15603279 | 2004 | this review only | not stated | not extracted yet |
| El Osta 2017 Impact of implant-supported prostheses on nutritional status and oral health perception in edentulous patients. PMID:29132738 | 2017 | this review only | not stated | not extracted yet |
| Gjengedal 2012 Randomized clinical trial comparing dietary intake in patients with implant-retained overdentures and conventionally relined denture. PMID:22720283 | 2012 | 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 individuals aged 60 years or older | Completely edentulous older adults (n=12 to 255 per study) |
| Intervention | Oral rehabilitation with implant-supported overdentures | Implant-supported overdentures |
| Comparison | Rehabilitation with conventional complete dentures | Conventional complete dentures |
| Outcomes | Nutritional intake assessed using validated dietary or biochemical methods | Vitamin B12, albumin and folate (meta-analysis, 5 studies); sodium, vitamins, anthropometry and malnutrition risk (narrative) |
| Study designs | Interventional and observational studies | 5 RCTs, 3 cohort studies, 1 cross-sectional study (n=9) |
| Timing | Not specified | Baseline, 3, 6 and 12 months |
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 | Yes | Partial Yes | no |
| 5Study selection in duplicate | Yes | Yes | yes |
| 6Data extraction in duplicate | Yes | Yes | yes |
| 7List of excluded studies with reasonscritical | Yes | Yes | yes |
| 8Included studies described in detail | Partial Yes | Partial Yes | yes |
| 9Risk of bias assessed satisfactorilycritical | RCT: Yes · NRSI: Yes | NRSI: Partial Yes · RCT: Yes | no |
| 10Funding of included studies reported | No | No | yes |
| 11Appropriate meta-analysis methodscritical | RCT: No · NRSI: No | NRSI: No · 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 |