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%

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

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
  • Clofazimine was associated with an increase in cutaneous adverse effects (Fisher's exact test P=0.015), easily controlled; there was a greater percentage of treatment interruptions in the colchicine group due to…
    1 study · 46 participants
    GRADE not reported

Perilla cooking oil vs Soybean cooking oil

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

Perilla cooking oil showed no clear difference in average number of days for resolution of ulcers compared with soybean cooking oil; GRADE not reported.

1 finding from 1 review

Leukotriene receptor antagonist vs placebo

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;…

Montelukast (leukotriene receptor antagonist; 10 mg daily for 1… led to lower time to resolution of first ulcer (days) compared with placebo; GRADE not reported.

1 finding from 1 review

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

Reduction in number of flares · 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

LongoVital (herbal component alone) vs placebo

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

LongoVital (herbal component alone) showed no clear difference in mean size of ulcers compared with placebo; GRADE not reported.

1 finding from 1 review

1% pimecrolimus cream vs Placebo (vehicle cream)

Physician Global Assessment (weighted sums of ulceration, erythema, reticulation, mm2) · People with erosive oral lichen planus

1% pimecrolimus cream showed no clear difference in physician Global Assessment (weighted sums of ulceration, erythema,… compared with placebo (vehicle cream); 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 oesophageal lichen planus

The review found no eligible studies for this question.

1 finding from 1 review

Pentoxifylline vs placebo

Pain, number of ulcers, ulcer-free days and ulcer size · 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
    60 days (plus 60-day follow-up)
    A single trial at high risk of bias compared pentoxifylline 400 mg three times daily (n=14) with placebo (n=12). No statistically significant differences were reported for pain, number of ulcers and ulcer-free days at…
    1 study · 26 participants
    GRADE not reported

Colchicine (0.5 mg three times per day) vs placebo

Complete remission (no further aphthous episodes to 6 months) · Participants with a previous or current history of recurrent aphthous stomatitis (RAS), diagnosed on history and clinical examination;…
1 finding from 1 review
  • The trial by de Abreu 2009 (high risk of bias) also assessed colchicine (n=23) versus placebo (n=20). The number with no further aphthous episodes at 6 months was not significantly different from placebo (Fisher's…
    1 study · 43 participants
    GRADE not reported

Aloe vera gel vs placebo

Side effects · People with erosive oral lichen planus
1 finding from 1 review
  • Table 3 (Side-effects). Choonhakarn 2008: no serious side-effects; 2 participants receiving aloe vera gel reported stinging and mild itching at lesions within the first week, symptoms spontaneously disappeared with…
    1 study · 45 participants
    GRADE not reported

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

Pain free by end of study (day 6) · 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 pain free by end of study (day 6) compared with placebo; GRADE not reported.

1 finding from 1 review

Betamethasone oral mini-pulse therapy vs Topical triamcinolone acetonide paste

Investigator‐ or physician‐rated global assessment of disease severity · People with erosive oral lichen planus

Betamethasone oral mini-pulse therapy led to higher physician Global Assessment (clinical severity, 0-12 score) compared with topical triamcinolone acetonide 0.1% paste; GRADE not reported.

1 finding from 1 review

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

Reduction in severity of flares · 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

Clobetasol-17-propionate 0.025% lipid-loaded microspheres vs Clobetasol propionate 0.025% ointment

Physician Global Assessment (Thongprasom score) · People with erosive oral lichen planus

Clobetasol-17-propionate 0.025% lipid-loaded microspheres showed no clear difference in physician Global Assessment (Thongprasom score) compared with conventional 0.025% clobetasol lipophilic ointment in hydrophilic…; GRADE not reported.

1 finding from 1 review