Findings

What do systematic reviews say?

4,587 questions · 5,761 findings · 495 reviews

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No studies found 1,011 · 17.5%GRADE not reported 1,797 · 31.2%Very low 1,100 · 19.1%Low 1,052 · 18.3%Moderate 649 · 11.3%High 152 · 2.6%

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Educational intervention with information and practical components (theoretical oral health education plus practical skills training) for nursing staff and/or residents vs (Optimised) usual care

Gingivitis · Nursing home residents (mean age 78.3 to 86.0 years; more than 66% women; 62.1% to 87.3% with dental prostheses)

1 finding from 1 review

Oral health educational interventions for nursing home staff and residents 2016 · Cochrane All outcomes
3 to 6 months
SoF: Gingivitis (Gingival Bleeding Index and method of Suomi; follow-up 3 to 6 months). No meta-analysis (data not comparable). 245 participants (3 RCTs); low quality. Comment: 3 studies at unclear risk of bias showed…
3 studies · 245 participants
Low

Educational intervention with information and practical components (theoretical oral health education plus practical skills training) for nursing staff and/or residents vs (Optimised) usual care

Plaque · Nursing home residents (mean age 78.3 to 86.0 years; more than 66% women; 62.1% to 87.3% with dental prostheses)

Educational intervention with information and practical components… showed no clear difference in dental plaque compared with (Optimised) usual care (low certainty).

1 finding from 1 review

Oral health educational interventions for nursing home staff and residents 2016 · Cochrane All outcomes
3 to 60 months
MD -0.04 [-0.26, 0.17]
6 studies · 437 participants
Low

Behaviour change / oral health promotion interventions delivered by non-dental professionals and health workers (nurses, midwives, health visitors, community health workers) vs control (no intervention/usual care/isotonic exercise)

Caries experience at the surface level (dmfs/defs) · Children (mean age newborn to ~5.2 years) and their parents/carers

Behaviour change interventions delivered by non-dental health workers produced a small, statistically significant reduction in caries experience at the surface level (dmfs SMD -0.15, 95% CI -0.25 to -0.04; 12 studies); the review judged the overall evidence to be of low quality (not GRADE-rated).

1 finding from 1 review

The effectiveness of behaviour change interventions delivered by non-dental health workers in promoting children's… 2022 All outcomes
Primary care and community settings; interventions delivered by non-dental health workers (multiple countries: Australia, Brazil, Canada, India, UK, USA, etc.)
SMD -0.15 [-0.25, -0.04]
12 studies
GRADE not reported

Behaviour change / oral health promotion interventions delivered by non-dental professionals and health workers (nurses, midwives, health visitors, community health workers) vs control (no intervention/usual care/isotonic exercise)

Caries experience · Children (mean age newborn to ~5.2 years) and their parents/carers

Behaviour change interventions delivered by non-dental health workers produced a small-to-moderate, statistically significant reduction in caries experience at the tooth level (dmft SMD -0.34, 95% CI -0.54 to -0.13; 6 studies); the review judged the overall evidence to be of low quality (not GRADE-rated).

1 finding from 1 review

The effectiveness of behaviour change interventions delivered by non-dental health workers in promoting children's… 2022 All outcomes
Primary care and community settings; interventions delivered by non-dental health workers (multiple countries: Australia, Brazil, Canada, India, UK, USA, etc.)
SMD -0.34 [-0.54, -0.13]
6 studies
GRADE not reported

Primary school-based interventions (one or more of: school health policy, oral health education, healthy school environment, access to oral health services, community involvement) vs usual practice

Dental caries · Primary school children (aged 3-16 years) attending primary school in low- and middle-income countries (LMICs)

Among children aged 6-8 years, DMFT scores were significantly reduced (SMD -0.11); subgroup not separately GRADE-rated.

8 findings from 1 review

Effectiveness of primary school-based interventions in improving oral health of children in low- and middle-income… 2022 All outcomes
Post-intervention; follow-up varied across studies (interventions ranged from <2 years to >=2 years and longer) · Primary schools in low- and middle-income countries (Southeast Asia, Africa, the Americas, Europe, eastern Mediterranean) · Age 6-8 years
SMD -0.11 [-0.17, -0.04]
Studies not reported
GRADE not reported
Effectiveness of primary school-based interventions in improving oral health of children in low- and middle-income… 2022 All outcomes
Post-intervention; follow-up varied across studies (interventions ranged from <2 years to >=2 years and longer) · Primary schools in low- and middle-income countries (Southeast Asia, Africa, the Americas, Europe, eastern Mediterranean) · <=3 intervention activities
SMD -0.58 [-1.62, 0.45]
Studies not reported
GRADE not reported
Effectiveness of primary school-based interventions in improving oral health of children in low- and middle-income… 2022 All outcomes
<2 years · Primary schools in low- and middle-income countries (Southeast Asia, Africa, the Americas, Europe, eastern Mediterranean) · Intervention duration <2 years
SMD 0.01 [-0.16, 0.18]
3 studies
GRADE not reported

Show 5 more findings

Effectiveness of primary school-based interventions in improving oral health of children in low- and middle-income… 2022 All outcomes
Post-intervention; follow-up varied across studies (interventions ranged from <2 years to >=2 years and longer) · Primary schools in low- and middle-income countries (Southeast Asia, Africa, the Americas, Europe, eastern Mediterranean) · Age 8-15 years
SMD -0.41 [-0.50, -0.32]
Studies not reported
GRADE not reported
Effectiveness of primary school-based interventions in improving oral health of children in low- and middle-income… 2022 All outcomes
>=2 years · Primary schools in low- and middle-income countries (Southeast Asia, Africa, the Americas, Europe, eastern Mediterranean) · Intervention duration >=2 years
SMD -0.49 [-0.79, -0.19]
4 studies
GRADE not reported
Effectiveness of primary school-based interventions in improving oral health of children in low- and middle-income… 2022 All outcomes
Post-intervention; follow-up varied across studies (interventions ranged from <2 years to >=2 years and longer) · Primary schools in low- and middle-income countries (Southeast Asia, Africa, the Americas, Europe, eastern Mediterranean)
SMD -0.33 [-0.56, -0.10]
7 studies · 6766 participants
Very low
Effectiveness of primary school-based interventions in improving oral health of children in low- and middle-income… 2022 All outcomes
Post-intervention; follow-up varied across studies (interventions ranged from <2 years to >=2 years and longer) · Primary schools in low- and middle-income countries (Southeast Asia, Africa, the Americas, Europe, eastern Mediterranean)
SMD -0.26 [-0.70, 0.18]
5 studies · 3506 participants
Very low
Effectiveness of primary school-based interventions in improving oral health of children in low- and middle-income… 2022 All outcomes
Post-intervention; follow-up varied across studies (interventions ranged from <2 years to >=2 years and longer) · Primary schools in low- and middle-income countries (Southeast Asia, Africa, the Americas, Europe, eastern Mediterranean) · >3 intervention activities
SMD 0.02 [-0.13, 0.17]
Studies not reported
GRADE not reported

Primary school-based interventions (one or more of: school health policy, oral health education, healthy school environment, access to oral health services, community involvement) vs usual practice

Annual increment in DMFS (D3) · Primary school children (aged 3-16 years) attending primary school in low- and middle-income countries (LMICs)

Oral-health-education interventions significantly reduced net increment in DMFS (SMD -1.05); no significant subgroup difference vs other interventions (P=0.74).

5 findings from 1 review

Effectiveness of primary school-based interventions in improving oral health of children in low- and middle-income… 2022 All outcomes
Post-intervention; follow-up varied across studies (interventions ranged from <2 years to >=2 years and longer) · Primary schools in low- and middle-income countries (Southeast Asia, Africa, the Americas, Europe, eastern Mediterranean) · Intervention type: oral health education
SMD -1.05 [-2.03, -0.08]
3 studies
GRADE not reported
Effectiveness of primary school-based interventions in improving oral health of children in low- and middle-income… 2022 All outcomes
Post-intervention; follow-up varied across studies (interventions ranged from <2 years to >=2 years and longer) · Primary schools in low- and middle-income countries (Southeast Asia, Africa, the Americas, Europe, eastern Mediterranean) · WHO health-promoting-schools framework
SMD -0.57 [-1.56, 0.42]
2 studies
GRADE not reported
Effectiveness of primary school-based interventions in improving oral health of children in low- and middle-income… 2022 All outcomes
Post-intervention; follow-up varied across studies (interventions ranged from <2 years to >=2 years and longer) · Primary schools in low- and middle-income countries (Southeast Asia, Africa, the Americas, Europe, eastern Mediterranean) · Non-WHO-framework interventions
SMD -1.88 [-3.15, -0.60]
Studies not reported
GRADE not reported

Show 2 more findings

Effectiveness of primary school-based interventions in improving oral health of children in low- and middle-income… 2022 All outcomes
Post-intervention; follow-up varied across studies (interventions ranged from <2 years to >=2 years and longer) · Primary schools in low- and middle-income countries (Southeast Asia, Africa, the Americas, Europe, eastern Mediterranean) · Intervention type: other (daily tooth brushing)
SMD -1.23 [-1.46, -1.00]
1 study
GRADE not reported
Effectiveness of primary school-based interventions in improving oral health of children in low- and middle-income… 2022 All outcomes
Post-intervention; follow-up varied across studies (interventions ranged from <2 years to >=2 years and longer) · Primary schools in low- and middle-income countries (Southeast Asia, Africa, the Americas, Europe, eastern Mediterranean)
SMD -1.09 [-1.91, -0.27]
4 studies · 3755 participants
Very low

Primary school-based interventions (one or more of: school health policy, oral health education, healthy school environment, access to oral health services, community involvement) vs usual practice

Dental caries prevalence measured by dmft or DMFT/S score greater than one · Primary school children (aged 3-16 years) attending primary school in low- and middle-income countries (LMICs)

School-based interventions may reduce the prevalence of dental caries (RR 0.70, favouring intervention), but the certainty of evidence is very low.

3 findings from 1 review

Effectiveness of primary school-based interventions in improving oral health of children in low- and middle-income… 2022 All outcomes
Post-intervention; follow-up varied across studies (interventions ranged from <2 years to >=2 years and longer) · Primary schools in low- and middle-income countries (Southeast Asia, Africa, the Americas, Europe, eastern Mediterranean)
RR 0.70 [0.53, 0.94]
4 studies · 2968 participants
Very low
Effectiveness of primary school-based interventions in improving oral health of children in low- and middle-income… 2022 All outcomes
<2 years · Primary schools in low- and middle-income countries (Southeast Asia, Africa, the Americas, Europe, eastern Mediterranean) · Intervention duration <2 years
RR 0.95 [0.75, 1.21]
2 studies
GRADE not reported
Effectiveness of primary school-based interventions in improving oral health of children in low- and middle-income… 2022 All outcomes
>=2 years · Primary schools in low- and middle-income countries (Southeast Asia, Africa, the Americas, Europe, eastern Mediterranean) · Intervention duration >=2 years
RR 0.58 [0.40, 0.84]
2 studies
GRADE not reported

Primary school-based interventions (one or more of: school health policy, oral health education, healthy school environment, access to oral health services, community involvement) vs usual practice

Caries increment, tooth index D(M)FT · Primary school children (aged 3-16 years) attending primary school in low- and middle-income countries (LMICs)

Among children aged 5-8 years, net increment in DMFT was not significantly reduced (SMD -0.36); no significant subgroup difference by age.

3 findings from 1 review

Effectiveness of primary school-based interventions in improving oral health of children in low- and middle-income… 2022 All outcomes
Post-intervention; follow-up varied across studies (interventions ranged from <2 years to >=2 years and longer) · Primary schools in low- and middle-income countries (Southeast Asia, Africa, the Americas, Europe, eastern Mediterranean) · Age 5-8 years
SMD -0.36 [-0.76, 0.04]
5 studies
GRADE not reported
Effectiveness of primary school-based interventions in improving oral health of children in low- and middle-income… 2022 All outcomes
Post-intervention; follow-up varied across studies (interventions ranged from <2 years to >=2 years and longer) · Primary schools in low- and middle-income countries (Southeast Asia, Africa, the Americas, Europe, eastern Mediterranean)
SMD -0.34 [-0.69, 0.02]
5 studies · 5492 participants
Very low
Effectiveness of primary school-based interventions in improving oral health of children in low- and middle-income… 2022 All outcomes
Post-intervention; follow-up varied across studies (interventions ranged from <2 years to >=2 years and longer) · Primary schools in low- and middle-income countries (Southeast Asia, Africa, the Americas, Europe, eastern Mediterranean) · Age 9-12 years
SMD -0.20 [-0.44, 0.04]
1 study
GRADE not reported

Oral gabapentin vs placebo

Acquiring ability to walk · adults with SMA types II and III

1 finding from 1 review

Drug treatment for spinal muscular atrophy types II and III 2020 · Cochrane Headline outcomes only
no estimate extracted
1 study · 73 participants
Low

Oral gabapentin vs placebo

Change in quality of life · adults with SMA types II and III

1 finding from 1 review

Drug treatment for spinal muscular atrophy types II and III 2020 · Cochrane Headline outcomes only
no estimate extracted
1 study · 67 participants
Low

Oral gabapentin vs placebo

Change in pulmonary function · adults with SMA types II and III

1 finding from 1 review

Drug treatment for spinal muscular atrophy types II and III 2020 · Cochrane Headline outcomes only
no estimate extracted
1 study · 65 participants
Low

Oral gabapentin vs placebo

Time from beginning of treatment until death or full‐time ventilation · adults with SMA types II and III

1 finding from 1 review

Drug treatment for spinal muscular atrophy types II and III 2020 · Cochrane Headline outcomes only
no estimate extracted
1 study · 84 participants
Moderate

Oral gabapentin vs placebo

Adverse events related to treatment · adults with SMA types II and III

1 finding from 1 review

Drug treatment for spinal muscular atrophy types II and III 2020 · Cochrane Headline outcomes only
no estimate extracted
1 study · 65 participants
Low

Oral gabapentin vs placebo

Change in disability score · adults with SMA types II and III

1 finding from 1 review

Drug treatment for spinal muscular atrophy types II and III 2020 · Cochrane Headline outcomes only
no estimate extracted
1 study · 66 participants
Low

Oral gabapentin vs placebo

Muscle strength · adults with SMA types II and III

1 finding from 1 review

Drug treatment for spinal muscular atrophy types II and III 2020 · Cochrane Headline outcomes only
no estimate extracted
1 study · 50 participants
Low

Oral antibiotics vs placebo

Withdrawals due to adverse events · people with atopic dermatitis

1 finding from 1 review

Interventions to reduce Staphylococcus aureus in the management of eczema 2019 · Cochrane Headline outcomes only
no estimate extracted
4 studies · 199 participants
Very low

Oral antibiotics vs placebo

Minor adverse events not leading to withdrawal of treatment · people with atopic dermatitis

1 finding from 1 review

Interventions to reduce Staphylococcus aureus in the management of eczema 2019 · Cochrane Headline outcomes only
no estimate extracted
1 study · 68 participants
Very low

Oral antibiotics vs placebo

Microbiology Emergence of resistant organisms · people with atopic dermatitis

1 finding from 1 review

Interventions to reduce Staphylococcus aureus in the management of eczema 2019 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 98 participants
Very low

Oral antibiotics vs placebo

Global change in composite ratings scale EASI ranges from 0 to 72 with higher values indicating greater severity. · people with atopic dermatitis

1 finding from 1 review

Interventions to reduce Staphylococcus aureus in the management of eczema 2019 · Cochrane Headline outcomes only
no estimate extracted
1 study · 68 participants
Moderate

Oral antibiotics vs placebo

No of participants in whom S. aureus was isolated · people with atopic dermatitis

Oral antibiotic showed no clear difference in no of participants in whom S. aureus was isolated compared with placebo (low certainty).

1 finding from 1 review

Interventions to reduce Staphylococcus aureus in the management of eczema 2019 · Cochrane Headline outcomes only
RR 0.76 [0.46, 1.26]
3 studies · 144 participants
Low