Gap finder

Search review questions

Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.

Limit to evidence status or GRADE (optional)

8 questions in 3 reviews · cluster CL0299

current versions
No studies 1 · 12.5%Ungraded 5 · 62.5%Very low 1 · 12.5%Low 1 · 12.5%Moderate 0 · 0%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Intervention categories, outcome domains and clusters are a proposed key pending human validation. Clear all filters

QuestionEffectEvidenceStatus / GRADE
Consumption of xylitol chewing gum by women (mothers) vs Consumption of CHX/xylitol gum by women, or CHX varnish applied to women's dentition
Caries presence in primary teeth · For interventions, pregnant women and mothers of infants in the first year of life; for outcomes, children up to 6… · Children assessed at 4 yrs
Interventions with pregnant women, new mothers and other primary caregivers for preventing early childhood… (2024) · Cochrane
RR 0.62 [0.27, 1.39]1 study · 96 participantsVery low
Xylitol syrup (high dose, 8 g/day) vs Control (low-dose xylitol, 2.67 g/day) syrup
Caries in primary teeth (mean number of decayed primary teeth) · Infants (primary teeth; baseline about 9 to 15 months) · 12 months
Xylitol‐containing products for preventing dental caries in children and adults (2015) · Cochrane
PF 0.58 [0.33, 0.83]1 study · 94 participantsLow
Xylitol chewing gum vs No treatment or non-cariogenic control
Outcome NR · Children and adults · At least 1 year
Xylitol‐containing products for preventing dental caries in children and adults (2015) · Cochrane
It was surprising that there were no eligible randomised trials testing xylitol chewing gums against either no treatment or a non-cariogenic control.0 studiesNo studies
Saliva stimulant lozenge (sorbitol, Sorbee) vs Saliva substitute spray (MouthKote)
Patient preference · Adults seeking treatment for the symptom of dry mouth (xerostomia) due to any cause (e.g. medication, Sjogren's…
Interventions for the management of dry mouth: topical therapies (2011) · Cochrane
Stewart 1998: no statistically significant difference in patient preference between lozenge and spray (Analysis 2.3).1 study · 80 participantsUngraded
Dentirol chewing gum (xylitol) vs Profylin lozenge (xylitol/sorbitol + CMC)
Patient preference · Adults seeking treatment for the symptom of dry mouth (xerostomia) due to any cause (e.g. medication, Sjogren's…
Interventions for the management of dry mouth: topical therapies (2011) · Cochrane
Patients ranked gum and lozenge equal for preference.1 study · 18 participantsUngraded
Dentirol chewing gum (xylitol) vs Profylin lozenge (xylitol/sorbitol + CMC)
Xerostomia (dry mouth relief) · Adults seeking treatment for the symptom of dry mouth (xerostomia) due to any cause (e.g. medication, Sjogren's…
Interventions for the management of dry mouth: topical therapies (2011) · Cochrane
Risheim 1993 (crossover, high risk of bias, n=18, rheumatic patients): both products gave good subjective relief of dry mouth in slightly less than one third of participants; crossover design not accounted for, no…1 study · 18 participantsUngraded
CMC/sorbitol pre-moistened swabs vs Lemon glycerin swabs
Xerostomia (oral dryness) · Adults seeking treatment for the symptom of dry mouth (xerostomia) due to any cause (e.g. medication, Sjogren's…
Interventions for the management of dry mouth: topical therapies (2011) · Cochrane
Poland 1987 (crossover, high risk of bias, n=20): CMC/sorbitol reported superior to lemon glycerin for reducing oral dryness; brief report, incomplete data, period effect noted; not usable for meta-analysis.1 study · 20 participantsUngraded
CMC/sorbitol pre-moistened swabs vs Lemon glycerin swabs
Patient preference · Adults seeking treatment for the symptom of dry mouth (xerostomia) due to any cause (e.g. medication, Sjogren's…
Interventions for the management of dry mouth: topical therapies (2011) · Cochrane
Patient preference favoured CMC/sorbitol (Chi2 10.89, df=1; P = 0.001).1 study · 20 participantsUngraded