Rotation of the mandibular first premolar · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)
After mandibular first molar extraction, the first premolar was rotated in about 38% of cases (2 studies; very imprecise; not GRADE-rated).
1 finding from 1 review
Mean DFR (decayed, filled root teeth) · adults
Patients with periodontitis had a significantly higher mean DFR (WMD 1.13).
1 finding from 1 review
Spontaneous space closure · Children and adolescents with maxillary permanent first molar extraction
In the maxilla, M2 Demirjian stages A-D were not associated with a statistically significant difference in space closure odds.
1 finding from 1 review
White spot lesion formation (QLF: fluorescence loss, lesion area) · Patients undergoing fixed orthodontic (fixed appliance) treatment (adolescents and adults, ages 12 to 35)
A single RCT found indirect bonding with flowable composite reduced white spot lesion formation versus direct bonding (ungraded).
1 finding from 1 review
Incidence of new ICLs (proportion of subjects developing new lesions) · Patients undergoing fixed orthodontic treatment with fixed (multibracket) appliances, followed for development of new ICLs
About 48% of patients developed new ICLs during fixed orthodontic treatment (pooled incidence 0.48, 95% CI 0.33-0.63; very low certainty; very high heterogeneity).
1 finding from 1 review
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 dietary advice on how to achieve a healthy diet for infants… changes caries presence in primary teeth compared with standard care (very low certainty).
1 finding from 1 review
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
Fluorosis (percentage prevalence in permanent teeth) · Children exposed to topical fluoride when under 6 years old; fluorosis assessed in permanent teeth at 6 to 18 years
It is very uncertain whether used less than half of the brush of fluoride toothpaste changes fluorosis (percentage prevalence in permanent teeth) compared with used half or more of the brush (very low certainty).
1 finding from 1 review
Child microbiological presence (any mutans streptococci colonisation) · For interventions, pregnant women, mothers or other caregivers of infants in the first year of life; for outcomes, children up to 6 years…
Package of oral health education/promotion including oral hygiene… showed no clear difference in child microbiological presence (mutans streptococci colonisation) compared with standard care; GRADE not reported.
1 finding from 1 review
Yu 2021: MS colonisation level (CFU x10^4) lower with intervention at 2 yrs (MD -2.80) and 3 yrs (MD -15, 95% CI -27.75 to -2.25) but not 1 yr (MD -0.20, 95% CI -0.50 to 0.10); MS-to-total-bacteria ratio lower at 1 yr…
1 study
GRADE not reported
Intervention not reported
Comparable diagnostic accuracy (photographic vs visual examination)
1 finding from 1 review
Prevalence of ICLs (proportion of tooth surfaces affected) · Patients (permanent dentition) during or after fixed orthodontic treatment with fixed (multibracket) appliances
About 22% of tooth surfaces showed ICLs during/after fixed orthodontic treatment (pooled 0.22, 95% CI 0.14-0.33; very low certainty; extreme heterogeneity).
1 finding from 1 review
Prevalence of ICLs (proportion of subjects affected) · Patients (permanent dentition) during or after fixed orthodontic treatment with fixed (multibracket) appliances
Around 57% of patients had ICLs during or after fixed orthodontic treatment (pooled prevalence 0.57, 95% CI 0.48-0.65; very low certainty; very high heterogeneity).
1 finding from 1 review
SiC30 index score · For interventions, pregnant women, mothers or other caregivers of infants in the first year of life; for outcomes, children up to 6 years…
Package of oral health education/promotion including oral hygiene… led to lower siC30 index score compared with standard care; GRADE not reported.
1 finding from 1 review
Periodontal conditions (gingival inflammation, bleeding on probing, probing depth, clinical attachment loss) · Children and adolescents aged 0-18 years with non-syndromic cleft lip and palate (CLP)
Narrative synthesis of 6 studies suggests children/adolescents with CLP have poorer periodontal status (higher gingival and plaque indices, deeper probing, more bleeding and attachment loss) and harbor periodontopathogens; no pooled estimate and the evidence is ungraded.
1 finding from 1 review
Crown caries · adults
Periodontitis was associated with a small increase in crown caries odds (OR 1.03).
1 finding from 1 review
White spot lesion development (QLF: mineral loss, lesion area/depth, new lesions) · Patients undergoing fixed orthodontic (fixed appliance) treatment (adolescents and adults, ages 12 to 35)
A single RCT found the one-step adhesive without a primer (GC Ortho Connect) produced more and more severe white spot lesions than conventional multi-step systems (ungraded).
1 finding from 1 review
Dental caries · Adults from Japanese and European cohorts (present-study Japanese direct-to-consumer cohort + GLIDE consortium and UK Biobank European…
Meta-analysis identified a novel genome-wide-significant locus for dental caries at rs4801882 in SIGLEC5 (P=1.71E-08); ungraded.
1 finding from 1 review
d/D dft/DFT or dmft/DMFT score differences · Children and adults with primary or permanent dentition
Eight studies calculated caries-score differences; six reported no significant difference, one underestimation, and one overestimation with teledentistry.
1 finding from 1 review
no estimate extracted
8 studies
GRADE not reported
Periodontitis (clinical attachment loss) · Adults in case-control studies (oral cancer patients vs healthy controls)
Clinical attachment loss was significantly greater in oral cancer patients than controls (SMD 1.94, 95% CI 0.22-3.66), though heterogeneity was very high (I2=96.7%); ungraded.
1 finding from 1 review
Bracket (bond) failure · Orthodontic patients of any age with fixed braces (new DLs assessed at debond)
Clearfil Protect Bond showed no difference in bracket failure, with certainty not graded.
1 finding from 1 review
No statistically significant difference in bond failure rates was observed between quadrants bonded with Clearfil (CF) and those bonded with the conventional primer (p = 0.316).
1 study · 35 participants
GRADE not reported