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What do systematic reviews say?

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Evidence found and GRADE certainty

3 questions · 5 findings · 2 reviews · All outcomes

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No studies found 0 · 0%GRADE not reported 2 · 40%Very low 0 · 0%Low 2 · 40%Moderate 1 · 20%High 0 · 0%

Intraglandular botulinum neurotoxin (BoNT) injection vs placebo injection

Adverse events (participants with >=1 adverse event) · Adults with Parkinson's disease and sialorrhea (drooling)

Type A botulinum toxin showed a borderline, non-significant increase in adverse events versus placebo (RD 0.10, 95% CI 0.00 to 0.21; ungraded subgroup).

3 findings from 1 review

Intensive periodontal treatment (subgingival SRP with or without other periodontal treatment) vs Supra-gingival scaling

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

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
  • Effect of periodontal treatments on blood pressure 2021 · Cochrane All outcomes
    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