Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

737 questions · 750 findings · 76 reviews

No studies found 182 · 24.3%GRADE not reported 95 · 12.7%Very low 229 · 30.5%Low 128 · 17.1%Moderate 76 · 10.1%High 40 · 5.3%

Occlusal adjustment as an adjunct to non-surgical periodontal therapy vs Non-surgical periodontal therapy alone (no occlusal adjustment)

Adverse effects (e.g. thermal sensitivity, over-eruption, TMJ symptoms, poor aesthetics, reduced oral hygiene) · Adults with chronic periodontitis

The review found no eligible studies for this question.

1 finding from 1 review

One type of occlusal intervention as an adjunct to periodontal therapy vs A different type of occlusal intervention as an adjunct to periodontal therapy (head-to-head)

Outcome not reported · Adults (aged 18 years or older) with a clinical diagnosis of (chronic) periodontitis

The review found no eligible studies for this question.

1 finding from 1 review

Occlusal intervention as an adjunct to periodontal therapy vs Sham (placebo) occlusal intervention as an adjunct to periodontal therapy

Outcome not reported · Adults (aged 18 years or older) with a clinical diagnosis of (chronic) periodontitis

The review found no eligible studies for this question.

1 finding from 1 review

Occlusal adjustment as an adjunct to surgical periodontal therapy vs Surgical periodontal therapy alone (no occlusal adjustment)

Change in probing pocket depth (PPD) · Adults with chronic periodontitis

Occlusal adjustment as an adjunct to surgical periodontal therapy showed no clear difference in probing (pocket) depth change (difference in mean reduction, mm) compared with surgical periodontal therapy alone (no occlusal adjustment); GRADE not reported.

1 finding from 1 review

Occlusal adjustment as an adjunct to non-surgical periodontal therapy vs Non-surgical periodontal therapy alone (no occlusal adjustment)

Attachment change · Adults with chronic periodontitis

Occlusal adjustment as an adjunct to non-surgical periodontal therapy led to higher clinical attachment level change (mean gain, mm) compared with non-surgical periodontal therapy alone (no occlusal adjustment); GRADE not reported.

1 finding from 1 review

Guided tissue regeneration (GTR) with barrier membrane (resorbable or non-resorbable) vs Open flap debridement (access flap surgery)

Sites failing to gain 2 mm attachment (proportion) · Patients with chronic periodontitis (aged 21 years or older) with periodontal infra-bony defects; furcation-involved teeth and aggressive…

Guided tissue regeneration (GTR) with barrier membrane (resorbable… led to lower sites failing to gain 2 mm attachment (proportion) compared with open flap debridement (access flap surgery); GRADE not reported.

1 finding from 1 review

Guided tissue regeneration (GTR) with barrier membrane (resorbable or non-resorbable) vs Open flap debridement (access flap surgery)

Aesthetics · Patients with chronic periodontitis (aged 21 years or older) with periodontal infra-bony defects; furcation-involved teeth and aggressive…

The review found no eligible studies for this question.

1 finding from 1 review

Guided tissue regeneration (GTR) with barrier membrane (resorbable or non-resorbable) vs Open flap debridement (access flap surgery)

Change in gingival recession (REC) · Patients with chronic periodontitis (aged 21 years or older) with periodontal infra-bony defects; furcation-involved teeth and aggressive…

Guided tissue regeneration (GTR) with barrier membrane (resorbable… led to higher change in gingival recession compared with open flap debridement (access flap surgery); GRADE not reported.

1 finding from 1 review

Guided tissue regeneration (GTR) with barrier membrane (resorbable or non-resorbable) vs Open flap debridement (access flap surgery)

Treatment / surgical procedure time · Patients with chronic periodontitis (aged 21 years or older) with periodontal infra-bony defects; furcation-involved teeth and aggressive…

Guided tissue regeneration (GTR) with barrier membrane (resorbable… showed no clear difference in treatment / surgical procedure time compared with open flap debridement (access flap surgery); GRADE not reported.

1 finding from 1 review

Guided tissue regeneration (GTR) with barrier membrane (resorbable or non-resorbable) vs Open flap debridement (access flap surgery)

Attachment change · Patients with chronic periodontitis (aged 21 years or older) with periodontal infra-bony defects; furcation-involved teeth and aggressive…

Guided tissue regeneration (GTR) with barrier membrane (resorbable… led to higher change in clinical attachment level (attachment gain) compared with open flap debridement (access flap surgery); GRADE not reported.

1 finding from 1 review

Guided tissue regeneration (GTR) with barrier membrane (resorbable or non-resorbable) vs Open flap debridement (access flap surgery)

Hard tissue probing at surgical re-entry (bone gain) · Patients with chronic periodontitis (aged 21 years or older) with periodontal infra-bony defects; furcation-involved teeth and aggressive…

Guided tissue regeneration (GTR) with barrier membrane (resorbable… led to higher hard tissue probing at surgical re-entry (bone gain) compared with open flap debridement (access flap surgery); GRADE not reported.

1 finding from 1 review

Guided tissue regeneration (GTR) with barrier membrane (resorbable or non-resorbable) vs Open flap debridement (access flap surgery)

Cost/benefit (treatment time plus estimated material costs) · Patients with chronic periodontitis (aged 21 years or older) with periodontal infra-bony defects; furcation-involved teeth and aggressive…

The review found no eligible studies for this question.

1 finding from 1 review

GTR rm associated with bone substitutes vs Open flap debridement (access flap surgery)

Hard tissue probing at surgical re-entry (bone gain) · Patients with chronic periodontitis (aged 21 years or older) with periodontal infra-bony defects; furcation-involved teeth and aggressive…

Guided tissue regeneration (GTR) combined with bone substitutes/graft led to higher hard tissue probing at surgical re-entry (bone gain) compared with open flap debridement (access flap surgery); GRADE not reported.

1 finding from 1 review

Guided tissue regeneration (GTR) with barrier membrane (resorbable or non-resorbable) vs Open flap debridement (access flap surgery)

Radiographic bone change · Patients with chronic periodontitis (aged 21 years or older) with periodontal infra-bony defects; furcation-involved teeth and aggressive…
1 finding from 1 review
  • Guided tissue regeneration for periodontal infra-bony defects 2006 · Cochrane All outcomes
    >=12 months
    Radiographic data was contained in two studies. Mayfield 1998 showed 0.6 mm gain in bone from the base of the defect in both test and control groups; Ratka-Kruger 2000 reported descriptively that only minute changes in…
    2 studies
    GRADE not reported

Guided tissue regeneration (GTR) with barrier membrane (resorbable or non-resorbable) vs Open flap debridement (access flap surgery)

Tooth loss · Patients with chronic periodontitis (aged 21 years or older) with periodontal infra-bony defects; furcation-involved teeth and aggressive…
1 finding from 1 review

GTR rm associated with bone substitutes vs Open flap debridement (access flap surgery)

Attachment change · Patients with chronic periodontitis (aged 21 years or older) with periodontal infra-bony defects; furcation-involved teeth and aggressive…

Guided tissue regeneration (GTR) combined with bone substitutes/graft led to higher change in clinical attachment level (attachment gain) compared with open flap debridement (access flap surgery); GRADE not reported.

1 finding from 1 review

Guided tissue regeneration (GTR) with barrier membrane (resorbable or non-resorbable) vs Open flap debridement (access flap surgery)

Change in probing pocket depth (PPD) · Patients with chronic periodontitis (aged 21 years or older) with periodontal infra-bony defects; furcation-involved teeth and aggressive…

Guided tissue regeneration (GTR) with barrier membrane (resorbable… led to higher change in probing depth (probing depth reduction) compared with open flap debridement (access flap surgery); GRADE not reported.

1 finding from 1 review

Guided tissue regeneration (GTR) with barrier membrane (resorbable or non-resorbable) vs Open flap debridement (access flap surgery)

Disease recurrence (% sites with >=2 mm loss of probing attachment from 12 months after treatment) · Patients with chronic periodontitis (aged 21 years or older) with periodontal infra-bony defects; furcation-involved teeth and aggressive…

The review found no eligible studies for this question.

1 finding from 1 review

Guided tissue regeneration (GTR) with barrier membrane (resorbable or non-resorbable) vs Open flap debridement (access flap surgery)

Ease of maintenance (% of sites with <4 mm probing depth) · Patients with chronic periodontitis (aged 21 years or older) with periodontal infra-bony defects; furcation-involved teeth and aggressive…

The review found no eligible studies for this question.

1 finding from 1 review

GTR rm associated with bone substitutes vs Open flap debridement (access flap surgery)

Change in probing pocket depth (PPD) · Patients with chronic periodontitis (aged 21 years or older) with periodontal infra-bony defects; furcation-involved teeth and aggressive…

Guided tissue regeneration (GTR) combined with bone substitutes/graft led to higher change in probing depth (probing depth reduction) compared with open flap debridement (access flap surgery); GRADE not reported.

1 finding from 1 review