Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,348 questions · 1,514 findings · 111 reviews · Oral Health

No studies found 287 · 19%GRADE not reported 823 · 54.4%Very low 243 · 16.1%Low 104 · 6.9%Moderate 49 · 3.2%High 8 · 0.5%

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

Antiseptic mouthwash (e.g. chlorhexidine) vs Another topical agent or placebo

Duration to heal oral ulcerations after initiation of treatment · HIV‐infected adults (> 13 years of age, per CDC) with one or more painful intraoral aphthous ulcers

The review found no eligible studies for this question.

1 finding from 1 review
  • No studies were included in this review. A total of 233 abstracts were retrieved; 25 were selected as potentially eligible but all were excluded (10 reported systemic rather than topical treatment; 3 non‐RCTs; 6…
    0 studies
    No studies found

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

Multivitamin vs placebo

Average number of new lesions per week · Participants with a previous or current history of recurrent aphthous stomatitis (RAS), diagnosed on history and clinical examination;…

Daily multivitamin showed no clear difference in mean number of new lesions compared with placebo; GRADE not reported.

1 finding from 1 review

Prednisone (oral, commencing 25 mg with phased dose reduction over 2 months) vs placebo

Total number of new lesions over 2-month treatment period · 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 total number of new lesions over 2-month treatment period compared with placebo; GRADE not reported.

1 finding from 1 review

Camel thorn (plant distillate) vs placebo

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

Prednisone (oral, commencing 25 mg with phased dose reduction over 2 months) 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
  • Femiano 2003 (high risk of bias) reports days to resolution of pain and days to epithelialization of aphthae at 1 month, and number of aphthae per month after the first and second months; data presented as…
    1 study · 20 participants
    GRADE not reported

Beta-glucan (1.3/1.6 beta-glucan 10 mg twice daily for 20 days) vs placebo

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

Beta-glucan (1.3/1.6 beta-glucan 10 mg twice daily for 20 days) led to lower ulcer severity score (USS) compared with placebo; GRADE not reported.

1 finding from 1 review

Camel thorn (plant distillate) vs placebo

Ulcer healing · Participants with a previous or current history of recurrent aphthous stomatitis (RAS), diagnosed on history and clinical examination;…
1 finding from 1 review
  • A single trial (Pourahmad 2010, unclear risk of bias) randomised 93 participants to camel thorn distillate (n=49) or placebo (n=44). Mean time to complete resolution was 4.02 days (range 3 to 7) for camel thorn…
    1 study · 93 participants
    GRADE not reported