Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

25 questions · 26 findings · 6 reviews · Oral Health

No studies found 2 · 7.7%GRADE not reported 19 · 73.1%Very low 4 · 15.4%Low 0 · 0%Moderate 1 · 3.8%High 0 · 0%

LongoVital (herbal plus vitamin component) vs LongoVital (herbal component alone)

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
  • A single trial at high risk of bias (Kolseth 2005) randomised participants to the herbal component of LongoVital alone or LongoVital with herbal plus vitamin component. Data presented as medians with 95% CIs,…
    1 study · 40 participants
    GRADE not reported

LongoVital (herbal plus vitamin component) vs LongoVital (herbal component alone)

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

High-dose vitamin D3 supplementation during pregnancy (2400 IU/day from pregnancy week 24 to 1 week postpartum, in addition to the recommended 400 IU/day) vs Low-dose (standard) vitamin D supplementation as recommended in national pregnancy guidelines

Caries presence in primary teeth · For interventions, pregnant women, mothers or other caregivers of infants in the first year of life; for outcomes, children up to 6 years…

It is very uncertain whether high-dose vitamin D3 supplementation during pregnancy (2400 IU/day… changes caries presence in primary teeth compared with low-dose (standard) vitamin D supplementation as recommended in… (very low certainty).

1 finding from 1 review

High-dose vitamin D3 supplementation during pregnancy (2400 IU/day from pregnancy week 24 to 1 week postpartum, in addition to the recommended 400 IU/day) vs Low-dose (standard) vitamin D supplementation as recommended in national pregnancy guidelines

Dental caries · For interventions, pregnant women, mothers or other caregivers of infants in the first year of life; for outcomes, children up to 6 years…

The review found no eligible studies for this question.

2 findings from 1 review

Multivitamin vs placebo

Average mouth pain during RAS episodes · 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 average mouth pain during RAS episodes 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

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

Dietary supplements (alpha lipoic acid +/- vitamins) vs placebo

Relief of burning/discomfort (symptom relief; pain intensity) · People with primary burning mouth syndrome (BMS), that is, oral mucosal pain with no dental or medical cause for such symptoms

It is very uncertain whether dietary supplements (alpha lipoic acid +/- vitamins) changes relief of burning/discomfort (symptom relief; pain intensity) compared with placebo (very low certainty).

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

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

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

'No ulcer' status during last 2 months of treatment · 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 higher 'No ulcer' status during last 2 months of treatment compared with placebo; GRADE not reported.

1 finding from 1 review

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

Frequency of outbreaks per month · 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 frequency of outbreaks per month compared with placebo; GRADE not reported.

1 finding from 1 review

Vitamin A or retinoids (systemic or topical; incl. 13-cis-retinoic acid, acitretin) vs placebo or no treatment

Malignant transformation (oral cancer development) · People with a diagnosis of oral leukoplakia

It is very uncertain whether vitamin A or retinoids (systemic or topical; incl. 13-cis-retinoic… changes oral cancer development compared with placebo or no treatment (very low certainty).

1 finding from 1 review

Vitamin A or retinoids (systemic or topical; incl. 13-cis-retinoic acid, acitretin) vs placebo or no treatment

Clinical resolution (oral lesion not completely resolved) · People with a diagnosis of oral leukoplakia
1 finding from 1 review
  • Interventions for treating oral leukoplakia to prevent oral cancer 2016 · Cochrane All outcomes
    4 to 12 months
    SoF 1, Clinical resolution (not completely resolved) at 4 to 12 months: 'Studies could not be combined in meta-analysis. One study evaluated topical treatment and did not find evidence of benefit; 3 studies of systemic…
    4 studies
    GRADE not reported