Non-Cochrane · intervention · PM41251445

Long-term clinical benefits of periodontal interventions in strict supportive periodontal care: A systematic review.

Rattu Varkha, Patel Tishani, Loke Jasmine, et al. · Journal of periodontology · 2026 · PubMed · doi:10.1002/jper.70027

Findings

12 findings

Population
Adults with periodontitis and intrabony defects who completed active periodontal therapy and attended strict supportive periodontal care for at least 10 yearsGuided tissue regeneration (GTR) in intrabony defectsOpen flap debridement (OFD) or access flapProbing pocket depth (PPD)
baseline · Supportive periodontal care after active periodontal therapy · Meta-analysis of studies comparing GTR and OFD
WMD -0.03 [-0.44, 0.38]
GRADE not reported
3 studies
Adults with periodontitis and intrabony defects who completed active periodontal therapy and attended strict supportive periodontal care for at least 10 yearsGuided tissue regeneration (GTR) in intrabony defectsOpen flap debridement (OFD) or access flapProbing pocket depth (PPD)
1 year · Supportive periodontal care after active periodontal therapy · Meta-analysis of studies comparing GTR and OFD
WMD -0.76 [-1.60, 0.09]
GRADE not reported
3 studies
Adults with periodontitis and intrabony defects who completed active periodontal therapy and attended strict supportive periodontal care for at least 10 yearsGuided tissue regeneration (GTR) in intrabony defectsOpen flap debridement (OFD) or access flapClinical attachment level (CAL)
baseline · Supportive periodontal care after active periodontal therapy · Meta-analysis of studies comparing GTR and OFD
WMD 0.00 [-0.42, 0.41]
GRADE not reported
3 studies
Adults with periodontitis and intrabony defects who completed active periodontal therapy and attended strict supportive periodontal care for at least 10 yearsGuided tissue regeneration (GTR) in intrabony defectsOpen flap debridement (OFD) or access flapClinical attachment level (CAL)
respective endpoints (10 to 20 years) · Supportive periodontal care after active periodontal therapy · Meta-analysis of studies comparing GTR and OFD
WMD -0.74 [-1.74, 0.26]
Low
Downgraded: inconsistency
3 studies
Adults with periodontitis and intrabony defects who completed active periodontal therapy and attended strict supportive periodontal care for at least 10 yearsGuided tissue regeneration (GTR) in intrabony defectsOpen flap debridement (OFD) or access flapClinical attachment level (CAL)
1 year · Supportive periodontal care after active periodontal therapy · Meta-analysis of studies comparing GTR and OFD
WMD -0.75 [-1.39, -0.12]
GRADE not reported
3 studies
Adults with periodontitis who completed active periodontal therapy and attended supportive periodontal care (SPC) for at least 10 yearsGuided tissue regeneration (GTR)Open flap debridement (OFD)Patient-reported outcome measures (PROMs)
Unresolved: the two extractors disagree on this row.
None of the included studies reported on PROMs.
No studies found
0 studies
Adults with periodontitis and intrabony defects who completed active periodontal therapy and attended strict supportive periodontal care for at least 10 yearsGuided tissue regeneration (GTR) in intrabony defectsOpen flap debridement (OFD) or access flapProbing pocket depth (PPD)
respective endpoints (10 to 20 years) · Supportive periodontal care after active periodontal therapy · Meta-analysis of studies comparing GTR and OFD
WMD -0.40 [-1.22, 0.41]
Low
Downgraded: inconsistency
3 studies
Adults with periodontitis and intrabony defects who completed active periodontal therapy and attended strict supportive periodontal care for at least 10 yearsGuided tissue regeneration (GTR) in intrabony defectsOpen flap debridement (OFD) or access flapProbing pocket depth (PPD)
respective endpoints (10 years) · Supportive periodontal care after active periodontal therapy · Sub-analysis of trials with 10-year SPC follow-up (Nickles 2009, Sculean 2008)
WMD 0.02 [-0.49, 0.52]
GRADE not reported
2 studies
Adults with periodontitis and intrabony defects who completed active periodontal therapy and attended strict supportive periodontal care for at least 10 yearsGuided tissue regeneration (GTR) in intrabony defectsOpen flap debridement (OFD) or access flapProbing pocket depth (PPD)
baseline · Supportive periodontal care after active periodontal therapy · Sub-analysis of trials with 10-year SPC follow-up (Nickles 2009, Sculean 2008)
WMD -0.07 [-0.57, 0.44]
GRADE not reported
2 studies
Adults with periodontitis and intrabony defects who completed active periodontal therapy and attended strict supportive periodontal care for at least 10 yearsGuided tissue regeneration (GTR) in intrabony defectsOpen flap debridement (OFD) or access flapClinical attachment level (CAL)
1 year · Supportive periodontal care after active periodontal therapy · Sub-analysis of trials with 10-year SPC follow-up (Nickles 2009, Sculean 2008)
WMD -0.57 [-1.39, 0.24]
GRADE not reported
2 studies
Adults with periodontitis and intrabony defects who completed active periodontal therapy and attended strict supportive periodontal care for at least 10 yearsGuided tissue regeneration (GTR) in intrabony defectsOpen flap debridement (OFD) or access flapProbing pocket depth (PPD)
1 year · Supportive periodontal care after active periodontal therapy · Sub-analysis of trials with 10-year SPC follow-up (Nickles 2009, Sculean 2008)
WMD -0.31 [-0.83, 0.20]
GRADE not reported
2 studies
Adults with periodontitis and intrabony defects who completed active periodontal therapy and attended strict supportive periodontal care for at least 10 yearsGuided tissue regeneration (GTR) in intrabony defectsOpen flap debridement (OFD) or access flapClinical attachment level (CAL)
respective endpoints (10 years) · Supportive periodontal care after active periodontal therapy · Sub-analysis of trials with 10-year SPC follow-up (Nickles 2009, Sculean 2008)
WMD -0.36 [-1.47, 0.74]
GRADE not reported
2 studies

Included primary studies 9

Open in Studies
StudyYearAlso included byOutcomes it informs hereTrial data
Cortellini 2017
Periodontal regeneration compared with access flap surgery in human intra-bony defects 20-year follow-up of a randomized clinical trial:…
PMID:27736011
2017this review onlyProbing pocket depth (PPD); Clinical attachment level (CAL)not extracted yet
Cortellini 2022
Modified minimally invasive surgical technique in human intrabony defects with or without regenerative materials-10-year follow-up of a…
PMID:35415940
2022this review onlynot statednot extracted yet
Crespi 2011
Comparison of modified widman and coronally advanced flap surgery combined with Co2 laser root irradiation in periodontal therapy: a…
PMID:22140666
2011this review onlynot statednot extracted yet
Dori 2013
Ten-year results following treatment of intrabony defects with an enamel matrix protein derivative combined with either a natural bone…
PMID:22873657
2013this review onlynot statednot extracted yet
Nickles 2009
Open flap debridement and guided tissue regeneration after 10 years in infrabony defects.
PMID:19807821
2009this review onlyProbing pocket depth (PPD); Clinical attachment level (CAL)not extracted yet
Nygaard-Ostby 2008
Periodontal healing following reconstructive surgery: effect of guided tissue regeneration using a bioresorbable barrier device when…
PMID:18173400
2008this review onlynot statednot extracted yet
Petsos 2019
Infrabony defects 20 years after open flap debridement and guided tissue regeneration.
PMID:30980561
2019this review onlyProbing pocket depth (PPD); Clinical attachment level (CAL)not extracted yet
Sculean 2008
Ten-year results following treatment of intra-bony defects with enamel matrix proteins and guided tissue regeneration.
PMID:18647201
2008this review onlyProbing pocket depth (PPD); Clinical attachment level (CAL)not extracted yet
Serino 2001
Initial outcome and long-term effect of surgical and non-surgical treatment of advanced periodontal disease.
PMID:11686808
2001this review onlynot statednot extracted yet

Review question

ElementPlanned (methods)Found (results)
PopulationAdults with periodontitis (excluding systemic or necrotizing disease) who completed active periodontal therapy and attended supportive periodontal care for at least 10 yearsAdults with periodontitis in SPC, 9 publications (8 RCTs; 3 trials in meta-analysis)
InterventionActive periodontal therapy test arms of each RCT (non-surgical to regenerative surgery)GTR, EMD, biomaterials, MWF, CAF with CO2 laser, SRP (n=9)
ComparisonStandard control intervention in each RCTOFD, M-MIST, MWF, SRP, other regenerative materials (n=9)
OutcomesTooth loss (primary); PPD reduction, CAL gain, PROMs (secondary)Tooth loss (n=4, not pooled); PPD (n=9; meta-analysis n=3); CAL (n=8; meta-analysis n=3); PROMs (n=0)
Study designsRCTsRCTs (n=9)
TimingMinimum SPC follow-up of 10 years10 to 20 years of SPC

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 explainedNoNoyes
4Comprehensive literature searchcriticalPartial YesPartial Yesyes
5Study selection in duplicateYesYesyes
6Data extraction in duplicateYesYesyes
7List of excluded studies with reasonscriticalYesYesyes
8Included studies described in detailYesYesyes
9Risk of bias assessed satisfactorilycriticalNRSI: N/A · RCT: YesRCT: Yesno
10Funding of included studies reportedYesYesyes
11Appropriate meta-analysis methodscriticalNRSI: N/A · RCT: YesRCT: Nono
12Impact of risk of bias on the pooled resultsNoNoyes
13Risk of bias accounted for in interpretationcriticalYesYesyes
14Heterogeneity explainedYesYesyes
15Publication bias investigatedcriticalNoNoyes
16Conflicts of interest reportedYesYesyes
OverallLowCritically Lowno