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Evidence found and GRADE certainty

7 questions · 13 findings · 3 reviews · Oral Health

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No studies found 0 · 0%GRADE not reported 9 · 69.2%Very low 1 · 7.7%Low 2 · 15.4%Moderate 1 · 7.7%High 0 · 0%

Essential oil mouthwash vs Placebo mouthwash

Volatile sulphur compounds (VSC), halimeter · Adolescents and adults aged over 16 years with clinical or self-assessed halitosis of oral origin; excluding induced or physiological…

Essential oil mouthwash showed no clear difference in volatile sulphur compounds (VSC), halimeter compared with placebo mouthwash; GRADE not reported.

2 findings from 1 review
  • Interventions for managing halitosis 2019 · Cochrane All outcomes
    2 weeks
    MD -5.13 [-32.94, 22.68]
    1 study · 45 participants
    GRADE not reported
  • Interventions for managing halitosis 2019 · Cochrane All outcomes
    Garcia 2014 (2-arm RCT) compared essential oil mouthwash versus placebo mouthwash (VSC by halimeter). We could not include the results in the meta-analysis because of the missing SD and P value.
    1 study
    GRADE not reported

Essential oil mouthwash vs Placebo mouthwash

Dentist-reported organoleptic test (OLT) score (scale 0 to 5) · Adolescents and adults aged over 16 years with clinical or self-assessed halitosis of oral origin; excluding induced or physiological…

It is very uncertain whether essential oil mouthwash changes dentist-reported organoleptic test (OLT) score (scale 0 to 5) compared with placebo mouthwash (very low certainty).

1 finding from 1 review

Essential oil mouthwash vs Placebo mouthwash

Adverse events · Adolescents and adults aged over 16 years with clinical or self-assessed halitosis of oral origin; excluding induced or physiological…
1 finding from 1 review
  • Interventions for managing halitosis 2019 · Cochrane All outcomes
    2 weeks
    Adverse events reported by Borden 2002 were not related to the interventions.
    1 study · 45 participants
    GRADE not reported

Essential oil mouthwash vs Coloured and flavoured 5% hydroalcohol mouthwash

Reduction in level of contamination by particles >5 um (droplets) at <2 m from patient's oral cavity · Dental patients undergoing aerosol-generating procedures (AGPs) and the dental healthcare providers treating them
1 finding from 1 review

Herbal mouthwash vs Blank control

Gingival index (GI) · Orthodontic patients (any age) undergoing orthodontic treatment (mostly fixed appliances)

Herbal mouthwash probably reduces the Gingival Index versus blank control in the short term (WMD -0.20, 95% CI -0.32 to -0.09; moderate certainty).

1 finding from 1 review

Essential oil mouthwash vs Water

Reduction in level of contamination by particles >5 um (droplets) at <2 m from patient's oral cavity · Dental patients undergoing aerosol-generating procedures (AGPs) and the dental healthcare providers treating them
3 findings from 1 review

Chlorhexidine vs Essential oils/herbal mouthwash

Reduction in level of contamination by particles >5 um (droplets) at <2 m from patient's oral cavity · Dental patients undergoing aerosol-generating procedures (AGPs) and the dental healthcare providers treating them

Chlorhexidine (CHX) led to lower reduction in level of contamination by particles >5 um (droplets) at… compared with essential oils/herbal mouthwash; GRADE not reported.

4 findings from 1 review
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