Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,922 questions · 3,118 findings · 513 reviews

No studies found 574 · 18.4%GRADE not reported 372 · 11.9%Very low 723 · 23.2%Low 854 · 27.4%Moderate 489 · 15.7%High 106 · 3.4%

Glass ionomer-based sealant vs Resin-based sealant

Development of >=1 new carious lesion (caries incidence) · 'Healthy' children with caries-free second primary molars, aged 3-5 years (schools and kindergartens, India and China)
1 finding from 1 review
  • Sealants for preventing dental caries in primary teeth 2022 · Cochrane All outcomes
    6-24 months
    N/A - insufficient quantitative information available; 200 (2 studies). Comments: Due to the methods of data collection, analysis and reporting we were unable to provide any quantitative estimates. Fei 2011 narrative:…
    2 studies · 200 participants
    Very low

Glass ionomer-based sealant vs Resin-based sealant

Adverse events · 'Healthy' children with caries-free second primary molars, aged 3-5 years (schools and kindergartens, India and China)
1 finding from 1 review
  • 1 study reported adverse events as some discomfort such as nausea; 1 child experienced a strong gag reflex following the glass ionomer-based sealant while 8 children reported feeling uncomfortable after the fluoride…
    1 study · 100 participants
    Very low

Intensive periodontal treatment (subgingival SRP with or without other periodontal treatment) vs No treatment (no periodontal treatment)

Diastolic blood pressure (mmHg), change from baseline · Adults (any age/sex) with chronic periodontitis (>=5 teeth remaining; PPD >4 mm), with or without hypertension

Periodontal treatment (subgingival SRP with or without other… showed no clear difference in change in diastolic blood pressure (DBP, mmHg) compared with no treatment (no periodontal treatment) (low certainty).

4 findings from 1 review
Show 1 more finding
  • Effect of periodontal treatments on blood pressure 2021 · Cochrane All outcomes
    Long term (follow-up 6 months) · People diagnosed with periodontitis and other cardiovascular diseases except hypertension
    MD -2.55 [-6.9, 1.8]
    2 studies · 103 participants
    Low

Intensive periodontal treatment (subgingival SRP with or without other periodontal treatment) vs No treatment (no periodontal treatment)

Clinical attachment level (CAL) · Adults (any age/sex) with chronic periodontitis (>=5 teeth remaining; PPD >4 mm), with or without hypertension

Periodontal treatment (subgingival SRP with or without other… led to lower clinical attachment level (CAL) compared with no treatment (no periodontal treatment); GRADE not reported.

1 finding from 1 review

Intensive periodontal treatment (subgingival SRP with or without other periodontal treatment) vs No treatment (no periodontal treatment)

Systolic blood pressure (mmHg), change from baseline · Adults (any age/sex) with chronic periodontitis (>=5 teeth remaining; PPD >4 mm), with or without hypertension

Periodontal treatment (subgingival SRP with or without other… showed no clear difference in change in systolic blood pressure (SBP, mmHg) compared with no treatment (no periodontal treatment) (low certainty).

4 findings from 1 review
Show 1 more finding
  • Effect of periodontal treatments on blood pressure 2021 · Cochrane All outcomes
    Short term (follow-up 3 months) · People diagnosed with periodontitis and other cardiovascular diseases except hypertension
    MD 0.59 [-9.18, 10.36]
    1 study · 55 participants
    Very low

Intensive periodontal treatment (subgingival SRP with or without other periodontal treatment) vs No treatment (no periodontal treatment)

Probing pocket depth · Adults (any age/sex) with chronic periodontitis (>=5 teeth remaining; PPD >4 mm), with or without hypertension

Periodontal treatment (subgingival SRP with or without other… led to lower pocket probing depth (PPD) compared with no treatment (no periodontal treatment); GRADE not reported.

1 finding from 1 review

Intensive periodontal treatment (subgingival SRP with or without other periodontal treatment) vs No treatment (no periodontal treatment)

Plasma level of hs-CRP (mg/L) · Adults (any age/sex) with chronic periodontitis (>=5 teeth remaining; PPD >4 mm), with or without hypertension

Periodontal treatment (subgingival SRP with or without other… showed no clear difference in plasma level of hs-CRP (mg/L) compared with no treatment (no periodontal treatment); GRADE not reported.

4 findings from 1 review
Show 1 more finding

Intensive periodontal treatment (subgingival SRP with or without other periodontal treatment) vs No treatment (no periodontal treatment)

Adverse events (participants with adverse events or withdrawals due to adverse events) · Adults (any age/sex) with chronic periodontitis (>=5 teeth remaining; PPD >4 mm), with or without hypertension
1 finding from 1 review
  • SoF 1 (Adverse effects): Only 1 study reported that 1 participant in the treatment group experienced a myocardial infarction during the study period. 1 study reported no adverse effects. The remaining 2 studies did not…
    2 studies · 294 participants
    Low

Band ligation vs no intervention or a sham procedure

All‐cause mortality · children with portal hypertension and large oesophageal varices, without previous gastrointestinal bleeding or beta‐blocker treatment

It is very uncertain whether band ligation changes all‐cause mortality compared with sham or no intervention (very low certainty).

1 finding from 1 review

Band ligation vs no intervention or a sham procedure

Serious adverse events Idiopathic thrombocytopaenic purpura · children with portal hypertension and large oesophageal varices, without previous gastrointestinal bleeding or beta‐blocker treatment

It is very uncertain whether band ligation changes serious adverse events Idiopathic thrombocytopaenic purpura compared with sham or no intervention (very low certainty).

1 finding from 1 review

Band ligation vs no intervention or a sham procedure

Health‐related quality of life · children with portal hypertension and large oesophageal varices, without previous gastrointestinal bleeding or beta‐blocker treatment

The review found no eligible studies for this question.

1 finding from 1 review

Band ligation vs no intervention or a sham procedure

Oesophageal variceal bleeding · children with portal hypertension and large oesophageal varices, without previous gastrointestinal bleeding or beta‐blocker treatment

It is very uncertain whether band ligation changes oesophageal variceal bleeding compared with sham or no intervention (very low certainty).

1 finding from 1 review

Band ligation vs no intervention or a sham procedure

Adverse events considered non‐serious · children with portal hypertension and large oesophageal varices, without previous gastrointestinal bleeding or beta‐blocker treatment

The review found no eligible studies for this question.

1 finding from 1 review

Risk‐based vs extensive on‐site monitoring

Combined outcome of proportion of participants with major or critical monitoring findings · clinical trials in all fields of health care

Risk‐based showed no clear difference in combined outcome of proportion of participants with major or… compared with extensive on‐site monitoring (moderate certainty).

1 finding from 1 review