Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

586 questions · 621 findings · 22 reviews · Oral medicine and oral cancer

No studies found 94 · 15.1%GRADE not reported 377 · 60.7%Very low 103 · 16.6%Low 35 · 5.6%Moderate 11 · 1.8%High 1 · 0.2%

Sulodexide (heparin plus dermatan sulphate chains) vs placebo

Days to resolution of pain / epithelialization; number of aphthae per month · Participants with a previous or current history of recurrent aphthous stomatitis (RAS), diagnosed on history and clinical examination;…
1 finding from 1 review

Vitamin B12 (sublingual, 1000 mcg daily for 6 months) vs placebo

Average duration of RAS episode (days) · Participants with a previous or current history of recurrent aphthous stomatitis (RAS), diagnosed on history and clinical examination;…

Vitamin B12 (sublingual, 1000 mcg daily for 6 months) led to lower average duration of RAS episode (days) compared with placebo; GRADE not reported.

1 finding from 1 review

Subantimicrobial dose doxycycline (20 mg twice daily for 90 days) vs placebo

Total number of new ulcers over 90 days · Participants with a previous or current history of recurrent aphthous stomatitis (RAS), diagnosed on history and clinical examination;…

Subantimicrobial dose doxycycline (20 mg twice daily for 90 days) led to lower total number of new ulcers over 90 days compared with placebo; GRADE not reported.

1 finding from 1 review

Any topical or systemic intervention vs Placebo, no treatment, or another intervention

Outcome not reported · People with erosive anogenital (genital) lichen planus

The review found no eligible studies for this question.

1 finding from 1 review

Vitamin B12 (sublingual, 1000 mcg daily for 6 months) vs placebo

Pain score · Participants with a previous or current history of recurrent aphthous stomatitis (RAS), diagnosed on history and clinical examination;…

Vitamin B12 (sublingual, 1000 mcg daily for 6 months) led to lower pain score compared with placebo; GRADE not reported.

1 finding from 1 review

Levamisole (150 mg per day) vs placebo

Decrease in duration of attacks · Participants with a previous or current history of recurrent aphthous stomatitis (RAS), diagnosed on history and clinical examination;…

Levamisole (150 mg per day) showed no clear difference in decrease in duration of attacks compared with placebo; GRADE not reported.

1 finding from 1 review

1% pimecrolimus cream vs Placebo (vehicle cream)

Participant global self-assessment · People with erosive oral lichen planus
1 finding from 1 review
  • One study (Passeron 2007) assessed participant global self-assessment on a 5-point scale: 5/6 participants in the 1% pimecrolimus group rated their improvement as moderate or important versus 1/6 in the placebo group…
    1 study · 12 participants
    GRADE not reported

Any topical or systemic intervention (topical/systemic steroids, ciclosporin, tacrolimus, retinoids, anti-malarials, biologics, phototherapy, surgery) vs Placebo, no treatment, another active intervention, or a different dose of the same intervention

Eating a normally varied diet · People of any age with erosive lichen planus affecting the oral, anogenital, and/or oesophageal regions

The review found no eligible studies for this question.

1 finding from 1 review

Bee propolis (one 500 mg capsule per day) vs placebo

Mean number of lesions over treatment period · Participants with a previous or current history of recurrent aphthous stomatitis (RAS), diagnosed on history and clinical examination;…

Bee propolis (one 500 mg capsule per day) showed no clear difference in mean number of lesions over treatment period compared with placebo; GRADE not reported.

1 finding from 1 review

Levamisole 50 mg three times per day for days 1 and 2 vs Levamisole 50 mg three times per day for day 1 and placebo for day 2 (lower dose)

Adverse effects · Participants with a previous or current history of recurrent aphthous stomatitis (RAS), diagnosed on history and clinical examination;…
1 finding from 1 review

LongoVital (herbal plus vitamin component) vs placebo

Number of ulcer-free days and number of new ulcers · Participants with a previous or current history of recurrent aphthous stomatitis (RAS), diagnosed on history and clinical examination;…
1 finding from 1 review
  • Forty patients were randomised to receive LongoVital (herbal plus vitamin) or placebo (Kolseth 2005). Data presented as medians with 95% confidence intervals, unsuitable for further analysis. The authors report no…
    1 study · 40 participants
    GRADE not reported

Bee propolis (one 500 mg capsule per day) vs placebo

Reduction of outbreaks (expected vs observed ulcers) · Participants with a previous or current history of recurrent aphthous stomatitis (RAS), diagnosed on history and clinical examination;…
1 finding from 1 review
  • Systemic interventions for recurrent aphthous stomatitis (mouth ulcers) 2012 · Cochrane All outcomes
    6 months (minimum)
    The authors report a statistically significant difference in the reduction of outbreaks based on the difference between expected and observed number of ulcers (Fisher's exact test, one sided, P=0.04).
    1 study · 19 participants
    GRADE not reported

Betamethasone (systemic corticosteroid) vs Placebo or no treatment

Outcome not reported · Participants with a previous or current history of recurrent aphthous stomatitis (RAS), diagnosed on history and clinical examination;…

The review found no eligible studies for this question.

1 finding from 1 review

Individualised homeopathic medicine (two doses over 24 hours) vs placebo

Ulcer healing · Participants with a previous or current history of recurrent aphthous stomatitis (RAS), diagnosed on history and clinical examination;…

Individualised homeopathic medicine (two doses over 24 hours) led to higher complete ulcer healing by end of study (day 6) compared with placebo; GRADE not reported.

1 finding from 1 review