Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,183 questions · 1,283 findings · 30 reviews · Oral medicine and oral cancer

No studies found 164 · 12.8%GRADE not reported 802 · 62.5%Very low 209 · 16.3%Low 71 · 5.5%Moderate 36 · 2.8%High 1 · 0.1%

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

Mean VAS pain per day · 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) showed no clear difference in mean VAS pain per day compared with placebo; GRADE not reported.

1 finding from 1 review

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

Prednisone (oral, commencing 25 mg with phased dose reduction over 2 months) vs Montelukast (leukotriene receptor antagonist)

Time to resolution of first ulcer (days) · Participants with a previous or current history of recurrent aphthous stomatitis (RAS), diagnosed on history and clinical examination;…

Prednisone (oral, commencing 25 mg with phased dose reduction over 2… led to lower time to resolution of first ulcer (days) compared with montelukast (leukotriene receptor antagonist); 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

Sulodexide (heparin plus dermatan sulphate chains) vs prednisone

Overall effectiveness (days to resolution; 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
  • A comparison between sulodexide (n=10) and prednisone (n=10) was made in a trial at high risk of bias (Femiano 2003). Data presented as ranges/totals only with no estimate of variability, precluding further analysis.…
    1 study · 20 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

Colchicine (0.5 mg three times per day) vs Clofazimine (100 mg daily for 30 days, then 100 mg every other day)

Complete remission, pain intensity, patient and physician evaluation · Participants with a previous or current history of recurrent aphthous stomatitis (RAS), diagnosed on history and clinical examination;…
1 finding from 1 review
  • One trial at high risk of bias (de Abreu 2009) compared clofazimine (n=23) with colchicine (n=23). The number with no further aphthous episodes at 6 months was significantly greater in the clofazimine group than the…
    1 study · 46 participants
    GRADE not reported