Non-Cochrane · methodological · PM42502222

A Practical Guide to Evidence Synthesis: Meta-Analysis, Network Meta-Analysis, Meta-Regressions and Beyond.

Tu Yu-Kang, Farina Roberto, Viola Alessandra, et al. · Journal of periodontal research · 2026 · PubMed · doi:10.1111/jre.70150

Findings

Population Patients with periodontal intrabony defects

83 findings

guided tissue regeneration (GTR)enamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
12 months (per supplementary data) · Meta-regression on membrane type: intercept (non-resorbable membranes, reference group)
MD 1.06
GRADE not reported
5 studies
guided tissue regeneration (GTR)enamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
12 months (per supplementary data) · Meta-regression on membrane type: resorbable plus non-resorbable vs non-resorbable membranes (coefficient b2)
MD -0.96 [-2.51, 0.59]
GRADE not reported
6 studies
guided tissue regeneration (GTR)enamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 0.38 [0.02, 0.74]
Low
8 studies
guided tissue regeneration (GTR)enamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
12 months (per supplementary data) · Overall; random-effects model; standardized mean difference
SMD 0.35 [-0.02, 0.71]
GRADE not reported
10 studies
guided tissue regeneration (GTR)enamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
12 months (per supplementary data) · Subgroup: non-resorbable membranes only; random-effects model
MD 1.08 [0.28, 1.88]
GRADE not reported
5 studies · 257 participants
guided tissue regeneration (GTR)enamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
12 months (per supplementary data) · Overall; common-effect model
MD 0.45 [0.20, 0.70]
GRADE not reported
10 studies · 456 participants
guided tissue regeneration (GTR)enamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
12 months (per supplementary data) · Meta-regression on membrane type: resorbable vs non-resorbable membranes (coefficient b1)
MD -1.16 [-2.13, -0.20]
GRADE not reported
9 studies
guided tissue regeneration (GTR)enamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
12 months (per supplementary data) · Subgroup: resorbable membranes only; common-effect model
MD -0.14 [-0.54, 0.26]
GRADE not reported
4 studies · 159 participants
guided tissue regeneration (GTR)enamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
12 months (per supplementary data) · Subgroup: non-resorbable membranes only; common-effect model
MD 0.98 [0.62, 1.33]
GRADE not reported
5 studies · 257 participants
guided tissue regeneration (GTR)enamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
Direct evidence only (random-effects)
MD 0.60 [0.07, 1.14]
GRADE not reported
8 studies
guided tissue regeneration (GTR)enamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
Indirect evidence only (node-splitting, random-effects)
MD 0.19 [-0.31, 0.68]
GRADE not reported
Studies not reported
guided tissue regeneration (GTR)enamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
12 months (per supplementary data) · Overall; random-effects model (DerSimonian-Laird)
MD 0.51 [-0.03, 1.05]
GRADE not reported
10 studies · 456 participants
guided tissue regeneration (GTR)enamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
12 months (per supplementary data) · Subgroup: resorbable membranes only; random-effects model
MD -0.14 [-0.54, 0.26]
GRADE not reported
4 studies · 159 participants
guided tissue regeneration (GTR)GTR with platelet-rich plasma/fibrin and bone graftsProbing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 0.02 [-0.81, 0.85]
Very low
Downgraded: inconsistency
Studies not reported
guided tissue regeneration (GTR)GTR with enamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 0.03 [-0.80, 0.87]
Very low
Downgraded: inconsistency
2 studies
guided tissue regeneration (GTR)GTR with enamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
Indirect evidence only (node-splitting, random-effects)
MD 0.53 [-0.71, 1.76]
GRADE not reported
Studies not reported
guided tissue regeneration (GTR)GTR with enamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
Direct evidence only (random-effects)
MD -0.39 [-1.53, 0.75]
GRADE not reported
2 studies
guided tissue regeneration (GTR)GTR with bone graftsProbing pocket depth (PPD) reduction (mm)
Direct evidence only (random-effects)
MD -0.10 [-0.86, 0.66]
GRADE not reported
4 studies
guided tissue regeneration (GTR)GTR with bone graftsProbing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 0.25 [-0.28, 0.77]
Very low
Downgraded: inconsistency
4 studies
guided tissue regeneration (GTR)GTR with bone graftsProbing pocket depth (PPD) reduction (mm)
Indirect evidence only (node-splitting, random-effects)
MD 0.55 [-0.17, 1.27]
GRADE not reported
Studies not reported
guided tissue regeneration (GTR)EMD with bone graftsProbing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 0.30 [-0.20, 0.79]
Very low
Downgraded: inconsistency
Studies not reported
guided tissue regeneration (GTR)EMD with platelet-rich plasma/fibrin and bone graftsProbing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 0.40 [-1.40, 2.20]
Very low
Downgraded: imprecision
Studies not reported
guided tissue regeneration (GTR)flap operation (FO)Probing pocket depth (PPD) reduction (mm)
Subgroup NMA by study design: Split-mouth trials (21 trials overall)
MD 0.93 [0.40, 1.47]
GRADE not reported
Studies not reported
guided tissue regeneration (GTR)flap operation (FO)Probing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 1.28 [0.97, 1.59]
Low
18 studies
guided tissue regeneration (GTR)flap operation (FO)Probing pocket depth (PPD) reduction (mm)
Indirect evidence only (node-splitting, random-effects)
MD 1.27 [0.64, 1.90]
GRADE not reported
Studies not reported
guided tissue regeneration (GTR)flap operation (FO)Probing pocket depth (PPD) reduction (mm)
Direct evidence only (random-effects)
MD 1.28 [0.92, 1.64]
GRADE not reported
18 studies
guided tissue regeneration (GTR)flap operation (FO)Probing pocket depth (PPD) reduction (mm)
Subgroup NMA by study design: Parallel-group trials (44 trials overall)
MD 1.44 [1.04, 1.84]
GRADE not reported
Studies not reported
GTR with platelet-rich plasma/fibrin and bone graftsGTR with enamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 0.01 [-1.13, 1.16]
Very low
Downgraded: imprecision
Studies not reported
GTR with platelet-rich plasma/fibrin and bone graftsGTR with bone graftsProbing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 0.22 [-0.42, 0.87]
Very low
Downgraded: inconsistency
5 studies
GTR with platelet-rich plasma/fibrin and bone graftsGTR with bone graftsProbing pocket depth (PPD) reduction (mm)
Direct evidence only (random-effects)
MD 0.22 [-0.42, 0.87]
GRADE not reported
5 studies
GTR with platelet-rich plasma/fibrin and bone graftsEMD with bone graftsProbing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 0.28 [-0.61, 1.16]
Very low
Studies not reported
GTR with platelet-rich plasma/fibrin and bone graftsEMD with platelet-rich plasma/fibrin and bone graftsProbing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 0.38 [-1.56, 2.32]
Very low
Downgraded: imprecision
Studies not reported
GTR with platelet-rich plasma/fibrin and bone graftsenamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 0.36 [-0.48, 1.20]
Very low
Studies not reported
GTR with platelet-rich plasma/fibrin and bone graftsflap operation (FO)Probing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 1.26 [0.44, 2.07]
Low
Studies not reported
GTR with platelet-rich plasma/fibrin and bone graftsflap operation (FO)Probing pocket depth (PPD) reduction (mm)
Subgroup NMA by study design: Parallel-group trials (44 trials overall)
MD 0.94 [-0.06, 1.95]
GRADE not reported
Studies not reported
GTR with platelet-rich plasma/fibrin and bone graftsflap operation (FO)Probing pocket depth (PPD) reduction (mm)
Subgroup NMA by study design: Split-mouth trials (21 trials overall)
MD 1.81 [0.34, 3.28]
GRADE not reported
Studies not reported
GTR with enamel matrix derivatives (EMD)GTR with bone graftsProbing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 0.21 [-0.73, 1.16]
Very low
Studies not reported
GTR with enamel matrix derivatives (EMD)EMD with bone graftsProbing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 0.27 [-0.62, 1.16]
Very low
Studies not reported
GTR with enamel matrix derivatives (EMD)EMD with platelet-rich plasma/fibrin and bone graftsProbing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 0.37 [-1.58, 2.31]
Very low
Downgraded: imprecision
Studies not reported
GTR with enamel matrix derivatives (EMD)enamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
Direct evidence only (random-effects)
MD 0.30 [-0.60, 1.20]
GRADE not reported
3 studies
GTR with enamel matrix derivatives (EMD)enamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
Indirect evidence only (node-splitting, random-effects)
MD 0.56 [-1.31, 2.44]
GRADE not reported
Studies not reported
GTR with enamel matrix derivatives (EMD)enamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 0.35 [-0.46, 1.16]
Very low
3 studies
GTR with enamel matrix derivatives (EMD)flap operation (FO)Probing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 1.25 [0.42, 2.07]
Low
1 study
GTR with enamel matrix derivatives (EMD)flap operation (FO)Probing pocket depth (PPD) reduction (mm)
Indirect evidence only (node-splitting, random-effects)
MD 1.48 [0.51, 2.44]
GRADE not reported
Studies not reported
GTR with enamel matrix derivatives (EMD)flap operation (FO)Probing pocket depth (PPD) reduction (mm)
Subgroup NMA by study design: Parallel-group trials (44 trials overall)
MD 1.32 [0.37, 2.28]
GRADE not reported
Studies not reported
GTR with enamel matrix derivatives (EMD)flap operation (FO)Probing pocket depth (PPD) reduction (mm)
Subgroup NMA by study design: Split-mouth trials (21 trials overall)
MD 1.33 [-0.33, 2.99]
GRADE not reported
Studies not reported
GTR with enamel matrix derivatives (EMD)flap operation (FO)Probing pocket depth (PPD) reduction (mm)
Direct evidence only (random-effects)
MD 0.60 [-1.01, 2.21]
GRADE not reported
1 study
GTR with bone graftsEMD with bone graftsProbing pocket depth (PPD) reduction (mm)
Direct evidence only (random-effects)
MD -0.20 [-1.49, 1.09]
GRADE not reported
2 studies
GTR with bone graftsEMD with bone graftsProbing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 0.05 [-0.55, 0.66]
Very low
Downgraded: inconsistency
2 studies
GTR with bone graftsEMD with bone graftsProbing pocket depth (PPD) reduction (mm)
Indirect evidence only (node-splitting, random-effects)
MD 0.13 [-0.56, 0.81]
GRADE not reported
Studies not reported
GTR with bone graftsEMD with platelet-rich plasma/fibrin and bone graftsProbing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 0.15 [-1.68, 1.99]
Very low
Downgraded: imprecision
Studies not reported
GTR with bone graftsenamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 0.13 [-0.41, 0.68]
Very low
Downgraded: inconsistency
Studies not reported
GTR with bone graftsflap operation (FO)Probing pocket depth (PPD) reduction (mm)
Subgroup NMA by study design: Parallel-group trials (44 trials overall)
MD 0.83 [0.28, 1.39]
GRADE not reported
Studies not reported
GTR with bone graftsflap operation (FO)Probing pocket depth (PPD) reduction (mm)
Indirect evidence only (node-splitting, random-effects)
MD 1.18 [0.34, 2.02]
GRADE not reported
Studies not reported
GTR with bone graftsflap operation (FO)Probing pocket depth (PPD) reduction (mm)
Subgroup NMA by study design: Split-mouth trials (21 trials overall)
MD 1.44 [0.37, 2.51]
GRADE not reported
Studies not reported
GTR with bone graftsflap operation (FO)Probing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 1.03 [0.54, 1.53]
Low
6 studies
GTR with bone graftsflap operation (FO)Probing pocket depth (PPD) reduction (mm)
Direct evidence only (random-effects)
MD 0.95 [0.34, 1.56]
GRADE not reported
6 studies
EMD with bone graftsEMD with platelet-rich plasma/fibrin and bone graftsProbing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 0.10 [-1.63, 1.83]
Very low
Downgraded: imprecision
1 study
EMD with bone graftsEMD with platelet-rich plasma/fibrin and bone graftsProbing pocket depth (PPD) reduction (mm)
Direct evidence only (random-effects)
MD 0.10 [-1.63, 1.83]
GRADE not reported
1 study
EMD with bone graftsenamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
Indirect evidence only (node-splitting, random-effects)
MD -0.30 [-1.30, 0.69]
GRADE not reported
Studies not reported
EMD with bone graftsenamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
Direct evidence only (random-effects)
MD 0.15 [-0.27, 0.56]
GRADE not reported
13 studies
EMD with bone graftsenamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 0.08 [-0.30, 0.46]
Very low
Downgraded: inconsistency
13 studies
EMD with bone graftsflap operation (FO)Probing pocket depth (PPD) reduction (mm)
Subgroup NMA by study design: Parallel-group trials (44 trials overall)
MD 0.80 [0.30, 1.30]
GRADE not reported
Studies not reported
EMD with bone graftsflap operation (FO)Probing pocket depth (PPD) reduction (mm)
Direct evidence only (random-effects)
MD 0.57 [-0.21, 1.34]
GRADE not reported
4 studies
EMD with bone graftsflap operation (FO)Probing pocket depth (PPD) reduction (mm)
Indirect evidence only (node-splitting, random-effects)
MD 1.17 [0.64, 1.71]
GRADE not reported
Studies not reported
EMD with bone graftsflap operation (FO)Probing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 0.98 [0.54, 1.42]
Low
4 studies
EMD with bone graftsflap operation (FO)Probing pocket depth (PPD) reduction (mm)
Subgroup NMA by study design: Split-mouth trials (21 trials overall)
MD 1.54 [0.37, 2.71]
GRADE not reported
Studies not reported
EMD with platelet-rich plasma/fibrin and bone graftsenamel matrix derivatives (EMD)Probing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD -0.02 [-1.79, 1.75]
Very low
Downgraded: imprecision
Studies not reported
EMD with platelet-rich plasma/fibrin and bone graftsflap operation (FO)Probing pocket depth (PPD) reduction (mm)
Subgroup NMA by study design: Parallel-group trials (44 trials overall)
MD 0.70 [-1.06, 2.47]
GRADE not reported
Studies not reported
EMD with platelet-rich plasma/fibrin and bone graftsflap operation (FO)Probing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 0.88 [-0.90, 2.66]
Very low
Studies not reported
enamel matrix derivatives (EMD)flap operation (FO)Probing pocket depth (PPD) reduction (mm)
Subgroup NMA by study design: Split-mouth trials (21 trials overall)
MD 1.17 [0.69, 1.66]
GRADE not reported
Studies not reported
enamel matrix derivatives (EMD)flap operation (FO)Probing pocket depth (PPD) reduction (mm)
Subgroup NMA by study design: Parallel-group trials (44 trials overall)
MD 0.76 [0.38, 1.15]
GRADE not reported
Studies not reported
enamel matrix derivatives (EMD)flap operation (FO)Probing pocket depth (PPD) reduction (mm)
Indirect evidence only (node-splitting, random-effects)
MD 0.56 [-0.06, 1.17]
GRADE not reported
Studies not reported
enamel matrix derivatives (EMD)flap operation (FO)Probing pocket depth (PPD) reduction (mm)
Direct evidence only (random-effects)
MD 1.00 [0.66, 1.33]
GRADE not reported
19 studies
enamel matrix derivatives (EMD)flap operation (FO)Probing pocket depth (PPD) reduction (mm)
Network meta-analysis estimate (random-effects, all evidence)
MD 0.90 [0.60, 1.19]
Low
19 studies
guided tissue regeneration (GTR)All other 7 treatments in the networkProbing pocket depth (PPD) reduction (mm)
NMA treatment ranking (random-effects)
P-score 0.77
GRADE not reported
Studies not reported
GTR with platelet-rich plasma/fibrin and bone graftsAll other 7 treatments in the networkProbing pocket depth (PPD) reduction (mm)
NMA treatment ranking (random-effects)
P-score 0.70
GRADE not reported
Studies not reported
GTR with enamel matrix derivatives (EMD)All other 7 treatments in the networkProbing pocket depth (PPD) reduction (mm)
NMA treatment ranking (random-effects)
P-score 0.69
GRADE not reported
Studies not reported
GTR with bone graftsAll other 7 treatments in the networkProbing pocket depth (PPD) reduction (mm)
NMA treatment ranking (random-effects)
P-score 0.51
GRADE not reported
Studies not reported
EMD with bone graftsAll other 7 treatments in the networkProbing pocket depth (PPD) reduction (mm)
NMA treatment ranking (random-effects)
P-score 0.47
GRADE not reported
Studies not reported
EMD with platelet-rich plasma/fibrin and bone graftsAll other 7 treatments in the networkProbing pocket depth (PPD) reduction (mm)
NMA treatment ranking (random-effects)
P-score 0.46
GRADE not reported
Studies not reported
enamel matrix derivatives (EMD)All other 7 treatments in the networkProbing pocket depth (PPD) reduction (mm)
NMA treatment ranking (random-effects)
P-score 0.37
GRADE not reported
Studies not reported
flap operation (FO)All other 7 treatments in the networkProbing pocket depth (PPD) reduction (mm)
NMA treatment ranking (random-effects)
P-score 0.02
GRADE not reported
Studies not reported

Included primary studies 24

Open in Studies
StudyYearAlso included byOutcomes it informs hereTrial data
Fileto Mazzonetto 2021
Clinical, radiographic, and patient‐centered outcomes after use of enamel matrix proteins for the treatment of intrabony defects in…
DOI:10.1002/jper.20-0493
20202 other reviewsnot statednot extracted yet
Liu K 2021
Treatment of periodontal intrabony defects using bovine porous bone mineral and guided tissue regeneration with/without platelet-rich…
PMID:33569807
20212 other reviewsnot statednot extracted yet
Pham 2021
INTRABONY DEFECT TREATMENT WITH PLATELET-RICH FIBRIN, GUIDED TISSUE REGENERATION AND OPEN-FLAP DEBRIDEMENT: A RANDOMIZED CONTROLLED TRIAL
DOI:10.1016/j.jebdp.2021.101545
20212 other reviewsnot statednot extracted yet
Aslan 2020
Clinical outcomes of the entire papilla preservation technique with and without biomaterials in the treatment of isolated intrabony…
DOI:10.1111/jcpe.13255
20201 other reviewnot statednot extracted yet
Fileto Mazzonetto 2021
Clinical, radiographic, and patient-centered outcomes after use of enamel matrix proteins for the treatment of intrabony defects in…
PMID:33107596
20211 other reviewnot statednot extracted yet
Liu B 2022
Efficacy of periodontal minimally invasive surgery with and without regenerative materials for treatment of intrabony defect: a randomized…
DOI:10.1007/s00784-021-04134-w
20211 other reviewnot statednot extracted yet
Liu B 2022
Efficacy of periodontal minimally invasive surgery with and without regenerative materials for treatment of intrabony defect: a randomized…
PMID:34414521
20221 other reviewnot statednot extracted yet
Liu K 2021
Treatment of periodontal intrabony defects using bovine porous bone mineral and guided tissue regeneration with/without platelet‐rich…
DOI:10.1002/jper.20-0860
20211 other reviewnot statednot extracted yet
Pham 2021
INTRABONY DEFECT TREATMENT WITH PLATELET-RICH FIBRIN, GUIDED TISSUE REGENERATION AND OPEN-FLAP DEBRIDEMENT: A RANDOMIZED CONTROLLED TRIAL.
PMID:34479673
20211 other reviewnot statednot extracted yet
Aslan 2020
Clinical outcomes of the entire papilla preservation technique with and without biomaterials in the treatment of isolated intrabony…
PMID:31925811
2020this review onlynot statednot extracted yet
Crea 2008
matched by author and year (probable)
NRthis review onlyProbing pocket depth (PPD) reduction (mm)not extracted yet
Gomez-Menchero 2025
A Comparison of the Treatment of Periodontal Infraosseous Defects with or Without Biomaterials by a Minimally Invasive Surgical Approach.
PMID:40004641
2025this review onlynot statednot extracted yet
Iorio-Siciliano 2011
matched by author and year (probable)
NRthis review onlyProbing pocket depth (PPD) reduction (mm)not extracted yet
Minabe 2002
matched by author and year (probable)
NRthis review onlyProbing pocket depth (PPD) reduction (mm)not extracted yet
Moreno Rodriguez 2022
Apical approach in periodontal reconstructive surgery with enamel matrix derivate and enamel matrix derivate plus bone substitutes: a…
DOI:10.1007/s00784-021-04256-1
2021this review onlynot statednot extracted yet
Moreno Rodriguez 2022
Apical approach in periodontal reconstructive surgery with enamel matrix derivate and enamel matrix derivate plus bone substitutes: a…
PMID:34791548
2022this review onlynot statednot extracted yet
Pontoriero 1999
matched by author and year (probable)
NRthis review onlyProbing pocket depth (PPD) reduction (mm)not extracted yet
Sanz 2004
matched by author and year (probable)
NRthis review onlyProbing pocket depth (PPD) reduction (mm)not extracted yet
Sculean 2001 (parallel)
matched by author and year (probable)
NRthis review onlyProbing pocket depth (PPD) reduction (mm)not extracted yet
Sculean 2001 (split-mouth)
matched by author and year (probable)
NRthis review onlyProbing pocket depth (PPD) reduction (mm)not extracted yet
Sculean 2001 (split-mouth)
Treatment of intrabony defects with enamel matrix proteins or bioabsorbable membranes. A 4-year follow-up split-mouth study.
PMID:11811505
2001this review onlyProbing pocket depth (PPD) reduction (mm)not extracted yet
Silvestri 2000
matched by author and year (probable)
NRthis review onlyProbing pocket depth (PPD) reduction (mm)not extracted yet
Silvestri 2003
matched by author and year (probable)
NRthis review onlyProbing pocket depth (PPD) reduction (mm)not extracted yet
Zucchelli 2002
matched by author and year (probable)
NRthis review onlyProbing pocket depth (PPD) reduction (mm)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

ElementPlanned (methods)Found (results)
PopulationPatients with periodontal intrabony defects (tutorial examples in periodontal regeneration)Patients with periodontal intrabony defects (n=3095 in the network meta-analysis example)
InterventionSurgical periodontal regenerative interventionsGTR, GTR+EMD, GTR+BG, GTR+PRP+BG, EMD, EMD+BG, EMD+PRP+BG, FO (8 treatment modalities)
ComparisonAnother regenerative intervention or flap operationFO and the other regenerative surgeries
OutcomesProbing pocket depth (PPD) reductionPPD reduction (mm)
Study designsRandomized controlled trials (parallel-group and split-mouth)RCTs (pairwise example n=10; network meta-analysis example n=65: 44 parallel-group, 21 split-mouth; 56 two-arm, 8 three-arm, 1 four-arm)
TimingNot specified12 months (pairwise example, per supplementary data)