Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,348 questions · 1,514 findings · 111 reviews · All outcomes

No studies found 287 · 19%GRADE not reported 823 · 54.4%Very low 243 · 16.1%Low 104 · 6.9%Moderate 49 · 3.2%High 8 · 0.5%

Adjunctive antimicrobial photodynamic therapy (aPDT) applied after submucosal instrumentation (SI) vs Submucosal instrumentation (SI) alone, or SI plus placebo/sham aPDT

Change in probing pocket depth (PPD) · Adults (> 18 years) with peri-implant mucositis, receiving active treatment

Adjunctive antimicrobial photodynamic therapy (aPDT) applied after… showed no clear difference in change in probing depth (PD/PPD) compared with submucosal instrumentation (SI) alone, or SI plus placebo/sham aPDT; GRADE not reported.

1 finding from 1 review

Antioxidants (lycopene, curcumin, Oxitard) vs Placebo or no active treatment

Difficulty in speech (participant-reported proxy) · People of any age with a confirmed diagnosis, by clinical examination and biopsy, of oral submucous fibrosis (OSF)

Antioxidants (lycopene, curcumin, Oxitard) showed no clear difference in difficulty in speech (participant-reported proxy) compared with placebo or no active treatment; GRADE not reported.

1 finding from 1 review

Probiotics vs placebo or control

Lactobacillus count (CFU/mL) · Children and/or adolescents (<18 years) without background systemic disease

Probiotics may make little to no difference to Lactobacillus count versus control (MD -0.78 CFU/mL, 95%CI -1.65 to 0.09; very low certainty).

1 finding from 1 review

Adjunctive antimicrobial photodynamic therapy (aPDT) applied after submucosal instrumentation (SI) vs Submucosal instrumentation (SI) alone, or SI plus placebo/sham aPDT

Outcome not reported · Adults (> 18 years) with peri-implantitis, receiving supportive treatment

The review found no eligible studies for this question.

1 finding from 1 review

Single preoperative dose of systemic antibiotics (clindamycin 600 mg), total chemo-mechanical debridement and root filling vs Matched placebo, total chemo-mechanical debridement and root filling

Analgesic (painkiller) use · Adults with symptomatic apical periodontitis (no signs of spreading infection or systemic involvement)

Single preoperative dose of systemic antibiotics (clindamycin 600… showed no clear difference in analgesic use compared with matched placebo, total chemo-mechanical debridement and root filling; GRADE not reported.

1 finding from 1 review

Adjunctive antimicrobial photodynamic therapy (aPDT) applied after submucosal instrumentation (SI) vs Submucosal instrumentation (SI) alone, or SI plus placebo/sham aPDT

Patient satisfaction · Adults (> 18 years) with peri-implant mucositis, receiving active treatment

The review found no eligible studies for this question.

1 finding from 1 review

Postoperative systemic antibiotics (phenoxymethylpenicillin/penicillin VK, 7-day course), partial or total chemo-mechanical debridement and analgesics vs Matched placebo, partial or total chemo-mechanical debridement and analgesics

Percussion pain at 7 days · Adults with a symptomatic necrotic tooth or localised acute apical abscess (no signs of spreading infection or systemic involvement)

Postoperative systemic antibiotics… showed no clear difference in percussion pain at 7 days compared with matched placebo, partial or total chemo-mechanical debridement and…; GRADE not reported.

1 finding from 1 review

Intralesional dexamethasone injections vs placebo injection

Maximal mouth opening (interincisal distance) · People of any age with a confirmed diagnosis, by clinical examination and biopsy, of oral submucous fibrosis (OSF)

It is very uncertain whether intralesional dexamethasone injections changes maximal mouth opening (interincisal distance) compared with placebo injections (very low certainty).

2 findings from 1 review

Adjunctive antimicrobial photodynamic therapy (aPDT) applied after subgingival instrumentation (SI) vs Subgingival instrumentation (SI) alone (hand or power-driven, or both), or SI plus placebo/sham aPDT

Quality of life · Adults (> 18 years) with a clinical diagnosis of periodontitis, receiving active (non-surgical anti-infective) treatment

The review found no eligible studies for this question.

1 finding from 1 review

Adjunctive antimicrobial photodynamic therapy (aPDT) applied after submucosal instrumentation (SI) vs Submucosal instrumentation (SI) alone, or SI plus placebo/sham aPDT

Any adverse effect related to aPDT · Adults (> 18 years) with peri-implant mucositis, receiving active treatment

The review found no eligible studies for this question.

1 finding from 1 review

Probiotics vs placebo or control

Salivary pH · Children and/or adolescents (<18 years) without background systemic disease

Probiotics may make little to no difference to salivary pH versus control (MD -0.12 pH units, 95%CI -0.72 to 0.48; very low certainty).

1 finding from 1 review

Postoperative systemic antibiotics (phenoxymethylpenicillin/penicillin VK, 7-day course), partial or total chemo-mechanical debridement and analgesics vs Matched placebo, partial or total chemo-mechanical debridement and analgesics

Adverse effects · Adults with a symptomatic necrotic tooth or localised acute apical abscess (no signs of spreading infection or systemic involvement)
1 finding from 1 review

Occlusal splint vs No treatment or placebo (non-occlusal or transparent-foil placebo splint)

Frequency of joint noise · People with temporomandibular disorders (TMD)

It is very uncertain whether occlusal splint changes frequency of joint noise compared with no treatment or placebo (non-occlusal or transparent-foil placebo… (very low certainty).

1 finding from 1 review

Pentoxifylline vs Placebo or no active treatment

Maximal mouth opening (interincisal distance) · People of any age with a confirmed diagnosis, by clinical examination and biopsy, of oral submucous fibrosis (OSF)

It is very uncertain whether pentoxifylline changes maximal mouth opening (interincisal distance) compared with placebo or no active treatment (very low certainty).

2 findings from 1 review

Probiotics vs placebo or control

Dental caries in children · Children and/or adolescents (<18 years) without background systemic disease

Probiotics probably make little to no difference to the number of dental caries versus control (MD -0.24 carious pieces, 95%CI -0.72 to 0.23; low certainty).

1 finding from 1 review

Silver diamine fluoride (SDF) vs placebo control

Caries arrestment at the individual (patient) level · Children and adults with active dental caries (aged 1-50; mostly preschool/school children with primary dentition)

Pooling two trials, SDF markedly increased individual-level caries arrestment versus placebo (OR 18.10; ungraded subgroup).

1 finding from 1 review

Intralesional betamethasone vs placebo

Maximal mouth opening (interincisal distance) · People of any age with a confirmed diagnosis, by clinical examination and biopsy, of oral submucous fibrosis (OSF)
1 finding from 1 review
  • Goel 2015 (3-arm: intralesional betamethasone vs lycopene vs placebo, 90 per arm): appeared to show increased interincisal distance in both intervention groups vs placebo, but only between-group differences with no…
    1 study · 180 participants
    GRADE not reported

Single preoperative dose of systemic antibiotics (clindamycin 600 mg), total chemo-mechanical debridement and root filling vs Matched placebo, total chemo-mechanical debridement and root filling

Pain at 72 hours · Adults with symptomatic apical periodontitis (no signs of spreading infection or systemic involvement)
1 finding from 1 review