Non-Cochrane · intervention · PM42740459

Efficacy of engineered scaffolds for horizontal and vertical ridge augmentation: A systematic review and meta-analysis.

Saleh Muhammad H A, Calciolari Elena, Ng Ethan, et al. · Journal of periodontology · 2026 · PubMed · doi:10.1002/jper.70103

Findings

32 findings

Population
Adults with alveolar ridge deficiency undergoing staged augmentationCustomized CAD/CAM titanium meshNoneVolumetric bone gain (mm³)
Overall
MEAN 1307 [1000, 1700]
Low
Downgraded: risk of bias, imprecision, inconsistency
5 studies · 83 participants
Adults with alveolar ridge deficiency undergoing staged augmentationCustomized CAD/CAM titanium meshNoneVertical bone gain (mm)
Overall
MEAN 5.64 [5.26, 6.02]
Moderate
Downgraded: risk of bias, imprecision
5 studies · 145 participants
Adults with alveolar ridge deficiency undergoing staged augmentationCustomized CAD/CAM titanium meshNoneHorizontal bone gain (mm)
4–10 months
MEAN 4.96 [4.48, 5.44]
Moderate
Downgraded: risk of bias, imprecision
3 studies · 77 participants
Adults with alveolar ridge deficiency undergoing staged augmentationCustomized CAD/CAM titanium mesh with resorbable membraneNoneHorizontal bone gain (mm)
With resorbable membrane
MEAN 5.64 [5.02, 6.26]
GRADE not reported
2 studies · 55 participants
Adults with alveolar ridge deficiency undergoing staged augmentationCustomized CAD/CAM titanium mesh with resorbable membraneNoneVolumetric bone gain (mm³)
With resorbable membrane
MEAN 1715 [1200, 2200]
GRADE not reported
3 studies · 51 participants
Adults with alveolar ridge deficiency undergoing staged augmentationCustomized CAD/CAM titanium mesh with resorbable membraneNoneVertical bone gain (mm)
With resorbable membrane
MEAN 4.26 [3.62, 4.9]
GRADE not reported
3 studies · 95 participants
Adults undergoing alveolar ridge augmentation with engineered scaffolds (horizontal and vertical defects)Engineered (CAD/CAM customized) scaffold, mainly customized CAD/CAM titanium mesh with bone graftNone (single-arm pooled mean; no between-scaffold comparison)Late complications (>=4 weeks), %
>= 4 weeks after surgery · University and hospital · Without resorbable membrane
Pooled proportion 18.0 [7.5, 28.4]
GRADE not reported
3 studies · 52 participants
Adults undergoing alveolar ridge augmentation with engineered scaffolds (horizontal and vertical defects)Engineered (CAD/CAM customized) scaffold, mainly customized CAD/CAM titanium mesh with bone graftNone (single-arm pooled mean; no between-scaffold comparison)Late complications (>=4 weeks), %
>= 4 weeks after surgery · University and hospital · Overall (customized CAD-CAM titanium mesh)
Pooled proportion 16.5 [7.3, 25.7]
Low
Downgraded: risk of bias, imprecision, inconsistency
3 studies · 61 participants
Adults undergoing alveolar ridge augmentation with engineered scaffolds (horizontal and vertical defects)Engineered (CAD/CAM customized) scaffold, mainly customized CAD/CAM titanium mesh with bone graftNone (single-arm pooled mean; no between-scaffold comparison)Early complications (<4 weeks), %
< 4 weeks after surgery · University and hospital · Overall (customized CAD-CAM titanium mesh)
Pooled proportion 24.3 [17.8, 30.8]
Low
Downgraded: risk of bias, imprecision, inconsistency
6 studies · 123 participants
Adults undergoing alveolar ridge augmentation with engineered scaffolds (horizontal and vertical defects)Engineered (CAD/CAM customized) scaffold, mainly customized CAD/CAM titanium mesh with bone graftNone (single-arm pooled mean; no between-scaffold comparison)Overall complications, irrespective of timing and membrane use, %
Irrespective of timing · University and hospital · Overall
Pooled proportion 21.7 [16.4, 27.0]
GRADE not reported
Studies not reported
Adults undergoing alveolar ridge augmentation with engineered scaffolds (horizontal and vertical defects)Engineered (CAD/CAM customized) scaffold, mainly customized CAD/CAM titanium mesh with bone graftNone (single-arm pooled mean; no between-scaffold comparison)Early complications (<4 weeks), %
< 4 weeks after surgery · University and hospital · With resorbable membrane
Pooled proportion 21.4 [10.1, 32.6]
GRADE not reported
3 studies · 51 participants
Adults with alveolar ridge deficiency undergoing staged augmentationCustomized CAD/CAM titanium mesh without resorbable membraneNoneVertical bone gain (mm)
Without resorbable membrane
MEAN 6.36 [5.96, 6.76]
GRADE not reported
2 studies · 50 participants
Adults with alveolar ridge deficiency undergoing staged augmentationCustomized CAD/CAM titanium mesh without resorbable membraneNoneEarly complications (%)
<4 weeks · Without resorbable membrane
Proportion (%) 25.6 [17.6, 33.5]
GRADE not reported
5 studies · 72 participants
Adults with alveolar ridge deficiency undergoing staged augmentationCustomized CAD/CAM titanium mesh without resorbable membraneNoneVolumetric bone gain (mm³)
Without resorbable membrane
MEAN 900 [750, 1050]
GRADE not reported
2 studies · 32 participants
Adults with alveolar ridge deficiency undergoing staged augmentationEngineered scaffolds and other study interventionsNoneVolumetric bone gain (mm³)
Multivariate meta-regression: Defect type (combined vs. horizontal)
Meta-regression coefficient 720.135 [286.0307, 1154.2383]
GRADE not reported
Studies not reported
Adults with alveolar ridge deficiency undergoing staged augmentationEngineered scaffolds and other study interventionsNoneVertical bone gain (mm)
Univariate meta-regression: Age
Meta-regression coefficient 0.1682 [0.0568, 0.2797]
GRADE not reported
Studies not reported
Adults with alveolar ridge deficiency undergoing staged augmentationEngineered scaffolds and other study interventionsNoneHorizontal bone gain (mm)
Univariate meta-regression: Smoking (light smokers vs. non‐smokers)
Meta-regression coefficient -2.429 [-4.232, -1.2628]
GRADE not reported
Studies not reported
Adults with alveolar ridge deficiency undergoing staged augmentationEngineered scaffolds and other study interventionsNoneVolumetric bone gain (mm³)
Univariate meta-regression: Graft Material (Ref: 3DHA + Xenograft): Autogenous Particles + Xenograft
Meta-regression coefficient 868.0872 [434.7582, 1301.4162]
GRADE not reported
Studies not reported
Systemically healthy partially dentate adults requiring horizontal ridge augmentation with simultaneous implant placement (FQ1)Engineered (CAD/CAM customized) scaffold with or without bone graft or membraneSame surgical procedure without an engineered scaffoldDefect resolution (%) at re-entry or implant placementno estimate extracted
No studies found
0 studies
Adults with alveolar ridge deficiency undergoing staged augmentationEngineered scaffolds and other study interventionsNoneVertical bone gain (mm)
Multivariate meta-regression: Defect type: Combined versus horizontal
Meta-regression coefficient 3.11 [2.121, 3.899]
GRADE not reported
Studies not reported
Adults with alveolar ridge deficiency undergoing staged augmentationEngineered scaffolds and other study interventionsNoneVolumetric bone gain (mm³)
Multivariate meta-regression: Group (Ref. ti‐PTFE): RM + PRF
Meta-regression coefficient -850.237 [-1643.3471, -57.1277]
GRADE not reported
Studies not reported
Adults with alveolar ridge deficiency undergoing staged augmentationEngineered scaffolds and other study interventionsNoneVolumetric bone gain (mm³)
Multivariate meta-regression: Graft Material (Ref: 3DHA + Xenograft): Autogenous Particles + Xenograft
Meta-regression coefficient 745.2934 [403.2456, 1087.3412]
GRADE not reported
Studies not reported
Adults with alveolar ridge deficiency undergoing staged augmentationEngineered scaffolds and other study interventionsNoneVolumetric bone gain (mm³)
Multivariate meta-regression: Maxilla (%)
Meta-regression coefficient -21.5784 [-32.7284, -10.4283]
GRADE not reported
Studies not reported
Adults with alveolar ridge deficiency undergoing staged augmentationEngineered scaffolds and other study interventionsNoneVolumetric bone gain (mm³)
Univariate meta-regression: Defect type (combined vs. horizontal)
Meta-regression coefficient 852.847 [450.8426, 1254.8523]
GRADE not reported
Studies not reported
Adults with alveolar ridge deficiency undergoing staged augmentationEngineered scaffolds and other study interventionsNoneVertical bone gain (mm)
Univariate meta-regression: Defect type: Combined versus horizontal
Meta-regression coefficient 4.4292 [2.5584, 6.3000]
GRADE not reported
Studies not reported
Adults with alveolar ridge deficiency undergoing staged augmentationEngineered scaffolds and other study interventionsNoneVertical bone gain (mm)
Univariate meta-regression: Smoking (Light vs. non‐smokers)
Meta-regression coefficient -1.122 [-2.7376, -0.217]
GRADE not reported
Studies not reported
Adults with alveolar ridge deficiency undergoing staged augmentationEngineered scaffolds and other study interventionsNoneVertical bone gain (mm)
Multivariate meta-regression: Smoking (Light vs. non‐smokers)
Meta-regression coefficient -0.781 [-2.11, -0.111]
GRADE not reported
Studies not reported
Adults with alveolar ridge deficiency undergoing staged augmentationEngineered scaffolds and other study interventionsNoneHorizontal bone gain (mm)
Univariate meta-regression: Surgeon experience (reference: graduate students): Expert surgeons
Meta-regression coefficient 2.422 [0.911, 5.487]
GRADE not reported
Studies not reported
Adults with alveolar ridge deficiency undergoing staged augmentationEngineered scaffolds and other study interventionsNoneVolumetric bone gain (mm³)
Univariate meta-regression: Maxilla (%)
Meta-regression coefficient -26.0233 [-38.1266, -13.9199]
GRADE not reported
Studies not reported
Adults with alveolar ridge deficiency undergoing staged augmentationEngineered scaffolds and other study interventionsNoneVertical bone gain (mm)
Univariate meta-regression: Time
Meta-regression coefficient 1.3363 [0.0931, 2.5795]
GRADE not reported
Studies not reported
Adults with alveolar ridge deficiency undergoing staged augmentationEngineered scaffolds and other study interventionsNoneVolumetric bone gain (mm³)
Univariate meta-regression: Group (Ref. ti‐PTFE): RM + PRF
Meta-regression coefficient -945.83 [-1813.9347, -77.7253]
GRADE not reported
Studies not reported
Systemically healthy partially dentate adults requiring vertical ridge augmentation with simultaneous implant placement (FQ3)Engineered (CAD/CAM customized) scaffold with or without bone graft or membraneSame surgical procedure without an engineered scaffoldDefect resolution (%) at re-entry or implant placementno estimate extracted
No studies found
0 studies

Included primary studies 26

Open in Studies
StudyYearAlso included byOutcomes it informs hereTrial data
Wang 2023
matched by author and year (probable)
NR1 other reviewnot statednot extracted yet
Ciocca 2018
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Ciocca 2018
Prosthetically CAD-CAM-Guided Bone Augmentation of Atrophic Jaws Using Customized Titanium Mesh: Preliminary Results of an Open…
PMID:29303418
2018this review onlynot statednot extracted yet
Cucchi 2020
matched by author and year (probable)
NRthis review onlyEarly complications (<4 weeks), %; Vertical bone gain (mm)not extracted yet
Cucchi 2020
Clinical and volumetric outcomes after vertical ridge augmentation using computer-aided-design/computer-aided manufacturing (CAD/CAM)…
PMID:32758217
2020this review onlynot statednot extracted yet
Cucchi 2021
matched by author and year (probable)
NRthis review onlyHorizontal bone gain (mm); Vertical bone gain (mm); Early complications (<4 weeks), %not extracted yet
Cucchi 2021
Vertical and horizontal ridge augmentation using customized CAD/CAM titanium mesh with versus without resorbable membranes. A randomized…
PMID:34551168
2021this review onlynot statednot extracted yet
Cucchi 2024
matched by author and year (probable)
NRthis review onlyEarly complications (<4 weeks), %; Vertical bone gain (mm)not extracted yet
Cucchi 2024
Complication, vertical bone gain, volumetric changes after vertical ridge augmentation using customized reinforced PTFE mesh or Ti-mesh. A…
PMID:39180274
2024this review onlynot statednot extracted yet
De Santis 2022
matched by author and year (probable)
NRthis review onlyHorizontal bone gain (mm); Vertical bone gain (mm); Early complications (<4 weeks), %not extracted yet
De Santis 2022
Custom Bone Regeneration (CBR): An Alternative Method of Bone Augmentation-A Case Series Study.
PMID:36012978
2022this review onlynot statednot extracted yet
El Morsy 2020
Assessment of 3-dimensional bone augmentation of severely atrophied maxillary alveolar ridges using patient-specific poly ether-ether…
PMID:32103625
2020this review onlynot statednot extracted yet
El-Morsy 2020
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Felice 2024
matched by author and year (probable)
NRthis review onlyHorizontal bone gain (mm); Vertical bone gain (mm); Early complications (<4 weeks), %not extracted yet
Felice 2024
A randomised controlled trial comparing the effectiveness of guided bone regeneration with polytetrafluoroethylene titanium-reinforced…
PMID:39283222
2024this review onlynot statednot extracted yet
Giragosyan 2024
matched by author and year (probable)
NRthis review onlyHorizontal bone gain (mm); Early complications (<4 weeks), %not extracted yet
Giragosyan 2024
Linear bone gain and healing complication rate comparative outcomes following ridge augmentation with custom 3D printed titanium mesh vs…
PMID:39257255
2024this review onlynot statednot extracted yet
Lizio 2022
matched by author and year (probable)
NRthis review onlyVertical bone gain (mm); Early complications (<4 weeks), %not extracted yet
Lizio 2022
Guided bone regeneration using titanium mesh to augment 3-dimensional alveolar defects prior to implant placement. A pilot study.
PMID:35305283
2022this review onlynot statednot extracted yet
Mekcha 2023
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Mekcha 2023
Customized 3D printed nanohydroxyapatite bone block grafts for implant sites: A case series.
PMID:35858803
2023this review onlynot statednot extracted yet
Mohamed 2023
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Mohamed 2023
Guided Bone Regeneration for Horizontal Maxillary Alveolar Ridge Augmentation Using Patient-Specific Solid Titanium Barriers: A Case Series.
PMID:36219140
2023this review onlynot statednot extracted yet
Mounir 2019
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Mounir 2019
Assessment of three dimensional bone augmentation of severely atrophied maxillary alveolar ridges using prebent titanium mesh vs…
PMID:30895678
2019this review onlynot statednot extracted yet
Wang 2023
Clinical and radiographic outcomes of customized allogeneic bone block versus autogenous bone block for ridge augmentation: 6 Month…
PMID:36054285
2023this review onlynot statednot 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

ElementPlanned (methods)Found (results)
PopulationSystemically healthy partially dentate adults (>=18 years) with horizontal or vertical ridge deficiency requiring staged or simultaneous-implant ridge augmentation (FQ1 to FQ4)241 patients (mean age 47.1 years), 202 defects (12.4% horizontal, 27.2% vertical, 60.4% combined); all staged protocol; FQ2 and FQ4 only
InterventionRidge augmentation with an engineered scaffold (CAD/CAM customized blocks or barriers such as PEEK, titanium mesh, polylactic acid), alone or with bone graft or membraneCustomized CAD/CAM titanium mesh (9 studies), PEEK scaffolds (2), 3D hydroxyapatite block (1), customized allogeneic bone block (1), mostly with autogenous plus xenogeneic bone
ComparisonSame surgical procedure without an engineered scaffoldPooled single-arm means; comparator arms (Ti-reinforced PTFE, autogenous block, pre-bent mesh) not pooled comparatively; no study answered FQ1 or FQ3
OutcomesPrimary: defect resolution at re-entry (simultaneous implant) or bone gain (horizontal, vertical, volumetric) at re-entry (staged); secondary: complications (early <4 weeks, late >=4 weeks), PROMs, bone quality and densityHorizontal bone gain (3 studies), vertical bone gain (5), volumetric bone gain (5), early complications (6), late complications (3); PROMs and histology described narratively
Study designsRCTs, prospective clinical studies and prospective case series with >=4 months follow-up and >=8 patients13 studies (6 single-center RCTs, 7 prospective case series); 9 in quantitative analysis
Timing>=4 months follow-up after regenerative procedure6 to 9 months follow-up (range 4 to 10 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.

ItemExtractor AExtractor BAgree
1Research question includes PICO componentsYesYesyes
2Protocol established before the reviewcriticalPartial YesPartial Yesyes
3Choice of study designs explainedNoYesno
4Comprehensive literature searchcriticalPartial YesYesno
5Study selection in duplicateYesYesyes
6Data extraction in duplicateYesYesyes
7List of excluded studies with reasonscriticalYesYesyes
8Included studies described in detailYesYesyes
9Risk of bias assessed satisfactorilycriticalRCT: Yes · NRSI: YesNRSI: Yes · RCT: Yesno
10Funding of included studies reportedYesNono
11Appropriate meta-analysis methodscriticalRCT: No · NRSI: NoNRSI: No · RCT: Nono
12Impact of risk of bias on the pooled resultsNoYesno
13Risk of bias accounted for in interpretationcriticalYesYesyes
14Heterogeneity explainedYesYesyes
15Publication bias investigatedcriticalNoNoyes
16Conflicts of interest reportedYesYesyes
OverallCritically LowCritically Lowyes