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%

Oral hygiene care training of carers vs No training (or a placebo training session) of carers

Oral health knowledge of carers (medium term) · People with mixed levels of ID (age range unclear); setting residential

Oral hygiene care training of carers may leads to higher oral health knowledge of carers (medium term) compared with no training (or a placebo training session) of carers (low certainty).

1 finding from 1 review

Patient-used 250 ppm F mouthrinse (100 ppm amine F/150 ppm NaF), daily vs 0 ppm F placebo mouthrinse, daily

Number of participants with new demineralised lesions (DLs) · Orthodontic patients of any age with fixed braces (new DLs assessed at debond)

It is very uncertain whether patient-used 250 ppm F mouthrinse (100 ppm amine F/150 ppm NaF), daily changes number of participants with new demineralised lesions (DLs) compared with 0 ppm F placebo mouthrinse, daily (very low certainty).

1 finding from 1 review

PRP (platelet-rich plasma) in cellulose foam placed in extraction socket vs placebo, no treatment or surveillance only

Incidence of ORN · Adults with head and neck cancer undergoing curative or adjuvant radiotherapy (at risk of osteoradionecrosis of the jaws)

It is very uncertain whether PRP (platelet-rich plasma) in cellulose foam placed in extraction… changes incidence of ORN compared with no treatment/placebo (cellulose foam only) placed in extraction socket (very low certainty).

1 finding from 1 review

Benzethonium chloride mouthwash vs Placebo mouthwash

VSC: hydrogen sulphide · Adolescents and adults aged over 16 years with clinical or self-assessed halitosis of oral origin; excluding induced or physiological…

Benzethonium chloride mouthwash showed no clear difference in VSC: hydrogen sulphide compared with placebo mouthwash; GRADE not reported.

1 finding from 1 review

38% silver diamine fluoride vs Fluoride varnish, glass ionomer cement, or placebo

Coronal carious lesions arrest · Children with coronal carious lesions (primary dentition)

Across three reviews, 38% SDF arrested 65 to 91% of coronal lesions in primary teeth, outperforming fluoride varnish (38 to 44%), glass ionomer cement (39 to 82%), and placebo (34%) (ungraded).

1 finding from 1 review

1000 or 1100 ppm F toothpaste vs Non-fluoride (0 ppm F) placebo toothpaste

Caries increment, surface index D(M)FS · Adults with mature permanent dentition (aged 18 to 93 years at study start)

1000 or 1100 ppm F toothpaste probably leads to lower caries increment, surface index DMFS compared with non-fluoride (0 ppm F) placebo toothpaste (moderate certainty).

1 finding from 1 review

1450 to 1500 ppm F toothpaste vs Non-fluoride (0 ppm F) placebo toothpaste

Proportion developing new caries · Children and adolescents with immature permanent dentition (aged 5 to 16 years at study start)

1450 to 1500 ppm F toothpaste may leads to lower proportion developing new caries compared with non-fluoride (0 ppm F) placebo toothpaste (low certainty).

1 finding from 1 review

PRP (platelet-rich plasma) in cellulose foam placed in extraction socket vs placebo, no treatment or surveillance only

Adverse effects (wound pain) · Adults with head and neck cancer undergoing curative or adjuvant radiotherapy (at risk of osteoradionecrosis of the jaws)
1 finding from 1 review

Benzethonium chloride mouthwash vs Placebo mouthwash

VSC: dimethyl sulphide · Adolescents and adults aged over 16 years with clinical or self-assessed halitosis of oral origin; excluding induced or physiological…

Benzethonium chloride mouthwash showed no clear difference in VSC: dimethyl sulphide compared with placebo mouthwash; GRADE not reported.

1 finding from 1 review

Professionally-applied 12,300 ppm F APF foam, every 2 months vs 0 ppm F placebo foam

Number of participants with more severe DLs (severity of DLs) · Orthodontic patients of any age with fixed braces (new DLs assessed at debond)

The review found no eligible studies for this question.

1 finding from 1 review

Oral hygiene care training of carers vs No training (or a placebo training session) of carers

Gingival inflammation (medium term) · People with mixed levels of ID (age range unclear); setting residential

Oral hygiene care training of carers showed no clear difference in gingival inflammation (medium term) compared with no training (or a placebo training session) of carers (low certainty).

1 finding from 1 review

CPP-ACP vs Placebo paste without CPP-ACP (fluoride toothpaste control)

Quantitative light-induced fluorescence (QLF), fluorescence loss · Patients (mainly children) with white spot lesions (WSL)

CPP-ACP toothpaste did not differ significantly from placebo paste (fluoride control) for white spot lesion remineralization on QLF (MD 0.08, 95% CI -0.91 to 1.08; ungraded).

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

Lactobacillus beta lactoperoxidase (LPO) tablets vs placebo (3 tablets/4 times a day

Volatile sulphur compounds (VSC), gas chromatography · 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
    Nakano 2017 (2-arm trial) compared Lactobacillus beta LPO tablets versus placebo tablets (VSC by OralChroma). The trial did not report any usable data and hence could not be included in the analysis.
    1 study
    GRADE not reported

2400 to 2800 ppm F toothpaste vs Non-fluoride (0 ppm F) placebo toothpaste

Caries increment, surface index D(M)FS · Children and adolescents with immature permanent dentition (aged 5 to 16 years at study start)

2400 to 2800 ppm F toothpaste may leads to lower caries increment, surface index D(M)FS compared with non-fluoride (0 ppm F) placebo toothpaste (low certainty).

1 finding from 1 review

Hinokitiol gel vs Placebo gel

VSC: hydrogen sulphide · Adolescents and adults aged over 16 years with clinical or self-assessed halitosis of oral origin; excluding induced or physiological…

Hinokitiol gel showed no clear difference in VSC: hydrogen sulphide compared with placebo gel; GRADE not reported.

1 finding from 1 review

12,500 ppm F (NaF/olaflur/dectaflur) amine fluoride gel vs Placebo gel

Adverse effects · Orthodontic patients of any age with fixed braces (new DLs assessed at debond)
1 finding from 1 review