Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

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

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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Chlorhexidine mouthrinse (any concentration; 0.05% to 0.2%) used in conjunction with mechanical oral hygiene procedures vs Placebo/control mouthrinse, or no mouthrinse (mechanical oral hygiene alone); controls pooled (protocol's separate comparisons versus mechanical oral hygiene alone and versus placebo/control merged)

Other adverse effects (taste disturbance, oral mucosal effects, burning sensation) · Children or adults with gingivitis or periodontitis capable of performing normal mechanical oral hygiene procedures (some with medical…
1 finding from 1 review

Oral-health promotion programs (OHPPs): community-based oral-health education/training, supervised toothbrushing with fluoride toothpaste and topical fluoride, dental screening, and dietary advice vs No oral health promotion program

Oral health-related quality of life · Adolescents (10-19 years)

Oral health promotion programs have a positive effect on OHRQoL in adolescents (narrative synthesis; low methodological quality of included evidence; no pooled estimate or GRADE rating).

2 findings from 1 review

Cryotherapy (ice chips) 30 minutes vs Cryotherapy (ice chips) 60 minutes

Oral mucositis (moderate to severe) · Adults with solid cancers receiving fluorouracil (5FU) and leucovorin

It is very uncertain whether oral cryotherapy for 30 minutes changes oral mucositis (moderate to severe) compared with oral cryotherapy for 60 minutes (very low certainty).

1 finding from 1 review

Cryotherapy (ice chips) 30 minutes vs Cryotherapy (ice chips) 60 minutes

Oral mucositis (severe) · Adults with solid cancers receiving fluorouracil (5FU) and leucovorin

It is very uncertain whether oral cryotherapy for 30 minutes changes oral mucositis (severe) compared with oral cryotherapy for 60 minutes (very low certainty).

1 finding from 1 review

Cryotherapy (ice chips) 30 minutes vs Cryotherapy (ice chips) 60 minutes

Oral mucositis (any severity) · Adults with solid cancers receiving fluorouracil (5FU) and leucovorin

It is very uncertain whether oral cryotherapy for 30 minutes changes oral mucositis (any severity) compared with oral cryotherapy for 60 minutes (very low certainty).

1 finding from 1 review

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

Oral health: Not brushing teeth twice a day · People with serious mental illness (all included participants had schizophrenia); majority aged 18 to 65 years per NIMH 1987, or with…

The review found no eligible studies for this question.

1 finding from 1 review

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

Oral health: Not having seen a dentist in the past year · People with serious mental illness (all included participants had schizophrenia); majority aged 18 to 65 years per NIMH 1987, or with…

The review found no eligible studies for this question.

1 finding from 1 review

NSAIDs (ketorolac oral rinse; systemic celecoxib) vs placebo or no treatment

Clinical resolution (oral lesion not completely resolved) · People with a diagnosis of oral leukoplakia
1 finding from 1 review
  • SoF 3, Clinical resolution (not completely resolved) at 3 months: '1 study evaluated systemic treatment and 1 evaluated topical treatment. Neither found benefit for NSAIDs.' No GRADE. Effects text: celecoxib…
    2 studies
    GRADE not reported

Motivational interview plus oral health education vs Oral health education

Oral health knowledge (1-9 scale) · People with serious mental illness (all included participants had schizophrenia); majority aged 18 to 65 years per NIMH 1987, or with…

Motivational interview plus oral health education led to higher knowledge: Average score (Oral Health Knowledge Questionnaire, high… compared with oral health education; GRADE not reported.

1 finding from 1 review

NSAIDs (ketorolac oral rinse; systemic celecoxib) vs placebo or no treatment

Malignant transformation (oral cancer development) · People with a diagnosis of oral leukoplakia
1 finding from 1 review
  • SoF 3 (NSAIDs vs placebo), Cancer development: SoF cell 'Not measured'. Effects text: cancer development was among outcomes in Papadimitrakopoulou 2008 (celecoxib) but did not occur in either arm, probably because of…
    1 study
    GRADE not reported

Motivational interview plus oral health education vs Oral health education

Oral health: Not brushing teeth twice a day · People with serious mental illness (all included participants had schizophrenia); majority aged 18 to 65 years per NIMH 1987, or with…

The review found no eligible studies for this question.

1 finding from 1 review

Motivational interview plus oral health education vs Oral health education

Oral health: Not having seen a dentist in the past year · People with serious mental illness (all included participants had schizophrenia); majority aged 18 to 65 years per NIMH 1987, or with…

The review found no eligible studies for this question.

1 finding from 1 review

Gamified oral health interventions (mobile apps, serious games, augmented reality, game-based education) vs Non-digital gamified oral health interventions (card/board games, storytelling, printed aids)

Long-term behavior change and overall oral health outcomes · Children or adolescents

Digital gamified interventions appear more effective than non-digital alternatives for long-term behavior change and oral health outcomes, but the evidence is narrative and ungraded.

1 finding from 1 review
  • The Application of Gamification in Children's Oral Health Management: Systematic Review. 2025 All outcomes
    Long-term follow-up (sustained behavior change) · Schools, dental clinics, and mobile-app user-testing environments
    Digital-based interventions were more effective in fostering long-term behavior change compared with nondigital alternatives and consistently outperformed nondigital alternatives in improving oral health outcomes;…
    Studies not reported
    GRADE not reported

Gamified oral health interventions (mobile apps, serious games, augmented reality, game-based education) vs Conventional or traditional oral health education, or non-gamified interventions (comparator varied; several studies were single-arm/uncontrolled)

Adherence to oral hygiene routines by people with ID or their carers · Children or adolescents

Gamified interventions appear to increase children's engagement and adherence to oral hygiene routines, but the evidence is narrative and ungraded.

1 finding from 1 review
  • The Application of Gamification in Children's Oral Health Management: Systematic Review. 2025 All outcomes
    Post-intervention (predominantly short-term; long-term follow-up in a minority of studies) · School-based settings, specialized dental clinics, and home-based environments
    The regular use rate was significantly higher (72.4%) in the gamified mobile health app group than in the nongamified intervention group (48.3%) [Zolfaghari 2021]; quiz-based challenges in mobile apps encouraged higher…
    Studies not reported
    GRADE not reported

Gamified oral health interventions (mobile apps, serious games, augmented reality, game-based education) vs Conventional or traditional oral health education, or non-gamified interventions (comparator varied; several studies were single-arm/uncontrolled)

Plaque index (PI) / oral hygiene · Children or adolescents

Gamified interventions appear to improve plaque control and oral hygiene status in children versus conventional methods, but the evidence is narrative and ungraded (individual-study P values only).

1 finding from 1 review
  • The Application of Gamification in Children's Oral Health Management: Systematic Review. 2025 All outcomes
    Post-intervention (predominantly short-term; long-term follow-up in a minority of studies) · School-based settings, specialized dental clinics, and home-based environments
    In the gamified mobile health app group, plaque control was superior (P<.05) compared with the conventional method group [Zolfaghari 2021]; a gamified/reminder sticker-book group showed a significant improvement in…
    Studies not reported
    GRADE not reported

Gamified oral health interventions (mobile apps, serious games, augmented reality, game-based education) vs Conventional or traditional oral health education, or non-gamified interventions (comparator varied; several studies were single-arm/uncontrolled)

Oral health knowledge (1-9 scale) · Children or adolescents

Gamified interventions appear to improve children's oral health knowledge compared with conventional education, but the evidence is narrative and ungraded.

1 finding from 1 review
  • The Application of Gamification in Children's Oral Health Management: Systematic Review. 2025 All outcomes
    Post-intervention (predominantly short-term; long-term follow-up in a minority of studies) · School-based settings, specialized dental clinics, and home-based environments
    The effectiveness of digital-based interventions was generally positive, with 38% (9/24) of the experimental studies reporting improvements in oral health knowledge and behaviors; game-based teaching significantly…
    9 studies
    GRADE not reported